./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d22078cc0ed1f6555ed02c6ceb2e5694208de3c10c4e0f5a14ad82c4e25bb79 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-27 21:55:15,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-27 21:55:15,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-27 21:55:15,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-27 21:55:15,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-27 21:55:16,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-27 21:55:16,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-27 21:55:16,007 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-27 21:55:16,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-27 21:55:16,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-27 21:55:16,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-27 21:55:16,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-27 21:55:16,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-27 21:55:16,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-27 21:55:16,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-27 21:55:16,023 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-27 21:55:16,024 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-27 21:55:16,025 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-27 21:55:16,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-27 21:55:16,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-27 21:55:16,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-27 21:55:16,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-27 21:55:16,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-27 21:55:16,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-27 21:55:16,043 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-27 21:55:16,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-27 21:55:16,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-27 21:55:16,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-27 21:55:16,046 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-27 21:55:16,047 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-27 21:55:16,047 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-27 21:55:16,048 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-27 21:55:16,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-27 21:55:16,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-27 21:55:16,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-27 21:55:16,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-27 21:55:16,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-27 21:55:16,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-27 21:55:16,053 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-27 21:55:16,054 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-27 21:55:16,055 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-27 21:55:16,055 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-27 21:55:16,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-27 21:55:16,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-27 21:55:16,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-27 21:55:16,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-27 21:55:16,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-27 21:55:16,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-27 21:55:16,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-27 21:55:16,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-27 21:55:16,095 INFO L138 SettingsManager]: * Use SBE=true [2021-12-27 21:55:16,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-27 21:55:16,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-27 21:55:16,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-27 21:55:16,096 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-27 21:55:16,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-27 21:55:16,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-27 21:55:16,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-27 21:55:16,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-27 21:55:16,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-27 21:55:16,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-27 21:55:16,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-27 21:55:16,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-27 21:55:16,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-27 21:55:16,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-27 21:55:16,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-27 21:55:16,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 21:55:16,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-27 21:55:16,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-27 21:55:16,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-27 21:55:16,106 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-27 21:55:16,107 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-27 21:55:16,107 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-27 21:55:16,107 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-27 21:55:16,107 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-27 21:55:16,108 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d22078cc0ed1f6555ed02c6ceb2e5694208de3c10c4e0f5a14ad82c4e25bb79 [2021-12-27 21:55:16,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-27 21:55:16,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-27 21:55:16,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-27 21:55:16,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-27 21:55:16,454 INFO L275 PluginConnector]: CDTParser initialized [2021-12-27 21:55:16,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2021-12-27 21:55:16,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27109057b/5c1f45fb56be4517ab5b4c12c2639a63/FLAGf76f720a2 [2021-12-27 21:55:16,911 INFO L306 CDTParser]: Found 1 translation units. [2021-12-27 21:55:16,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c [2021-12-27 21:55:16,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27109057b/5c1f45fb56be4517ab5b4c12c2639a63/FLAGf76f720a2 [2021-12-27 21:55:16,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27109057b/5c1f45fb56be4517ab5b4c12c2639a63 [2021-12-27 21:55:16,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-27 21:55:16,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-27 21:55:16,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-27 21:55:16,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-27 21:55:16,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-27 21:55:16,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 09:55:16" (1/1) ... [2021-12-27 21:55:16,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab5760e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:16, skipping insertion in model container [2021-12-27 21:55:16,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 09:55:16" (1/1) ... [2021-12-27 21:55:16,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-27 21:55:16,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-27 21:55:17,227 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c[35497,35510] [2021-12-27 21:55:17,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 21:55:17,248 INFO L203 MainTranslator]: Completed pre-run [2021-12-27 21:55:17,310 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_clnt_1.cil-1.c[35497,35510] [2021-12-27 21:55:17,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-27 21:55:17,328 INFO L208 MainTranslator]: Completed translation [2021-12-27 21:55:17,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17 WrapperNode [2021-12-27 21:55:17,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-27 21:55:17,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-27 21:55:17,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-27 21:55:17,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-27 21:55:17,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,401 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 506 [2021-12-27 21:55:17,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-27 21:55:17,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-27 21:55:17,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-27 21:55:17,406 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-27 21:55:17,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-27 21:55:17,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-27 21:55:17,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-27 21:55:17,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-27 21:55:17,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (1/1) ... [2021-12-27 21:55:17,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-27 21:55:17,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:55:17,497 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) [2021-12-27 21:55:17,507 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 [2021-12-27 21:55:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-27 21:55:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-27 21:55:17,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-27 21:55:17,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-27 21:55:17,657 INFO L234 CfgBuilder]: Building ICFG [2021-12-27 21:55:17,659 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-27 21:55:17,688 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-27 21:55:18,201 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2021-12-27 21:55:18,204 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2021-12-27 21:55:18,204 INFO L275 CfgBuilder]: Performing block encoding [2021-12-27 21:55:18,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-27 21:55:18,211 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-27 21:55:18,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 09:55:18 BoogieIcfgContainer [2021-12-27 21:55:18,213 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-27 21:55:18,215 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-27 21:55:18,215 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-27 21:55:18,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-27 21:55:18,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 09:55:16" (1/3) ... [2021-12-27 21:55:18,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273a92b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 09:55:18, skipping insertion in model container [2021-12-27 21:55:18,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 09:55:17" (2/3) ... [2021-12-27 21:55:18,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273a92b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 09:55:18, skipping insertion in model container [2021-12-27 21:55:18,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 09:55:18" (3/3) ... [2021-12-27 21:55:18,220 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_1.cil-1.c [2021-12-27 21:55:18,227 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-27 21:55:18,227 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-27 21:55:18,264 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-27 21:55:18,269 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-12-27 21:55:18,269 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-27 21:55:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:18,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-27 21:55:18,286 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:18,287 INFO L514 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] [2021-12-27 21:55:18,288 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:18,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:18,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1457700990, now seen corresponding path program 1 times [2021-12-27 21:55:18,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:18,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009495529] [2021-12-27 21:55:18,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:18,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 21:55:18,501 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:18,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009495529] [2021-12-27 21:55:18,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009495529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:18,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:18,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:18,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101830408] [2021-12-27 21:55:18,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:18,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:18,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:18,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:18,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:18,539 INFO L87 Difference]: Start difference. First operand has 127 states, 125 states have (on average 1.72) internal successors, (215), 126 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:18,641 INFO L93 Difference]: Finished difference Result 363 states and 617 transitions. [2021-12-27 21:55:18,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:18,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-12-27 21:55:18,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:18,660 INFO L225 Difference]: With dead ends: 363 [2021-12-27 21:55:18,660 INFO L226 Difference]: Without dead ends: 211 [2021-12-27 21:55:18,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:18,669 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 178 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 396 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:18,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [178 Valid, 396 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:18,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-12-27 21:55:18,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-12-27 21:55:18,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.5) internal successors, (315), 210 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 315 transitions. [2021-12-27 21:55:18,732 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 315 transitions. Word has length 24 [2021-12-27 21:55:18,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:18,732 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 315 transitions. [2021-12-27 21:55:18,733 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:18,734 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 315 transitions. [2021-12-27 21:55:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-12-27 21:55:18,736 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:18,737 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:18,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-27 21:55:18,738 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:18,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:18,741 INFO L85 PathProgramCache]: Analyzing trace with hash 152202379, now seen corresponding path program 1 times [2021-12-27 21:55:18,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:18,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88577655] [2021-12-27 21:55:18,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:18,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:18,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:18,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-27 21:55:18,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:18,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88577655] [2021-12-27 21:55:18,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88577655] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:18,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:18,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:18,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043177305] [2021-12-27 21:55:18,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:18,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:18,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:18,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:18,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:18,846 INFO L87 Difference]: Start difference. First operand 211 states and 315 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:18,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:18,975 INFO L93 Difference]: Finished difference Result 340 states and 513 transitions. [2021-12-27 21:55:18,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:18,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-12-27 21:55:18,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:18,978 INFO L225 Difference]: With dead ends: 340 [2021-12-27 21:55:18,978 INFO L226 Difference]: Without dead ends: 236 [2021-12-27 21:55:18,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:18,986 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 14 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:18,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 258 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:18,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-12-27 21:55:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 228. [2021-12-27 21:55:19,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.4845814977973568) internal successors, (337), 227 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 337 transitions. [2021-12-27 21:55:19,009 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 337 transitions. Word has length 38 [2021-12-27 21:55:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:19,010 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 337 transitions. [2021-12-27 21:55:19,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,011 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 337 transitions. [2021-12-27 21:55:19,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-27 21:55:19,017 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:19,018 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:19,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-27 21:55:19,018 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:19,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:19,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1281794544, now seen corresponding path program 1 times [2021-12-27 21:55:19,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:19,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733895872] [2021-12-27 21:55:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:19,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:19,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:19,116 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-12-27 21:55:19,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:19,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733895872] [2021-12-27 21:55:19,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733895872] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:19,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:19,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:19,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681582146] [2021-12-27 21:55:19,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:19,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:19,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:19,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:19,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,136 INFO L87 Difference]: Start difference. First operand 228 states and 337 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:19,291 INFO L93 Difference]: Finished difference Result 551 states and 841 transitions. [2021-12-27 21:55:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:19,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-12-27 21:55:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:19,293 INFO L225 Difference]: With dead ends: 551 [2021-12-27 21:55:19,293 INFO L226 Difference]: Without dead ends: 328 [2021-12-27 21:55:19,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,295 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 53 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:19,296 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 222 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:19,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-12-27 21:55:19,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 310. [2021-12-27 21:55:19,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 1.4142394822006472) internal successors, (437), 309 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2021-12-27 21:55:19,315 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 55 [2021-12-27 21:55:19,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:19,315 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2021-12-27 21:55:19,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2021-12-27 21:55:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-12-27 21:55:19,318 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:19,319 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:19,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-27 21:55:19,319 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1258017753, now seen corresponding path program 1 times [2021-12-27 21:55:19,321 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:19,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32524669] [2021-12-27 21:55:19,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:19,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:19,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-27 21:55:19,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:19,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32524669] [2021-12-27 21:55:19,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32524669] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:19,393 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:19,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:19,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029767749] [2021-12-27 21:55:19,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:19,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:19,394 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:19,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:19,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,395 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:19,505 INFO L93 Difference]: Finished difference Result 659 states and 942 transitions. [2021-12-27 21:55:19,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:19,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-12-27 21:55:19,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:19,508 INFO L225 Difference]: With dead ends: 659 [2021-12-27 21:55:19,508 INFO L226 Difference]: Without dead ends: 356 [2021-12-27 21:55:19,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,510 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 14 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:19,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 261 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:19,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-12-27 21:55:19,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 348. [2021-12-27 21:55:19,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 347 states have (on average 1.3976945244956773) internal successors, (485), 347 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 485 transitions. [2021-12-27 21:55:19,523 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 485 transitions. Word has length 68 [2021-12-27 21:55:19,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:19,524 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 485 transitions. [2021-12-27 21:55:19,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 485 transitions. [2021-12-27 21:55:19,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-27 21:55:19,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:19,525 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:19,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-27 21:55:19,526 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:19,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:19,526 INFO L85 PathProgramCache]: Analyzing trace with hash 181274982, now seen corresponding path program 1 times [2021-12-27 21:55:19,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:19,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98293027] [2021-12-27 21:55:19,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:19,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-27 21:55:19,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:19,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98293027] [2021-12-27 21:55:19,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98293027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:19,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:19,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:19,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086121757] [2021-12-27 21:55:19,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:19,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:19,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:19,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:19,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,620 INFO L87 Difference]: Start difference. First operand 348 states and 485 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:19,740 INFO L93 Difference]: Finished difference Result 828 states and 1180 transitions. [2021-12-27 21:55:19,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:19,741 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-27 21:55:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:19,744 INFO L225 Difference]: With dead ends: 828 [2021-12-27 21:55:19,744 INFO L226 Difference]: Without dead ends: 485 [2021-12-27 21:55:19,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,746 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 126 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:19,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 172 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:19,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2021-12-27 21:55:19,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 459. [2021-12-27 21:55:19,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 458 states have (on average 1.4323144104803494) internal successors, (656), 458 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 656 transitions. [2021-12-27 21:55:19,761 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 656 transitions. Word has length 81 [2021-12-27 21:55:19,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:19,765 INFO L470 AbstractCegarLoop]: Abstraction has 459 states and 656 transitions. [2021-12-27 21:55:19,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 656 transitions. [2021-12-27 21:55:19,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-27 21:55:19,766 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:19,766 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:19,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-27 21:55:19,767 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:19,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:19,767 INFO L85 PathProgramCache]: Analyzing trace with hash -901961809, now seen corresponding path program 1 times [2021-12-27 21:55:19,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:19,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995559322] [2021-12-27 21:55:19,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:19,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:19,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2021-12-27 21:55:19,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:19,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995559322] [2021-12-27 21:55:19,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995559322] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:19,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:19,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:19,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536284924] [2021-12-27 21:55:19,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:19,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:19,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:19,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:19,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,838 INFO L87 Difference]: Start difference. First operand 459 states and 656 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:19,952 INFO L93 Difference]: Finished difference Result 926 states and 1341 transitions. [2021-12-27 21:55:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:19,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-12-27 21:55:19,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:19,959 INFO L225 Difference]: With dead ends: 926 [2021-12-27 21:55:19,959 INFO L226 Difference]: Without dead ends: 507 [2021-12-27 21:55:19,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:19,962 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 12 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:19,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 260 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:19,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-12-27 21:55:19,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 501. [2021-12-27 21:55:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.416) internal successors, (708), 500 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 708 transitions. [2021-12-27 21:55:19,977 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 708 transitions. Word has length 84 [2021-12-27 21:55:19,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:19,978 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 708 transitions. [2021-12-27 21:55:19,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 708 transitions. [2021-12-27 21:55:19,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-27 21:55:19,982 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:19,982 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:19,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-27 21:55:19,983 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:19,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:19,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1810291289, now seen corresponding path program 1 times [2021-12-27 21:55:19,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:19,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426247644] [2021-12-27 21:55:19,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:19,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,035 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-12-27 21:55:20,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426247644] [2021-12-27 21:55:20,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426247644] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649996425] [2021-12-27 21:55:20,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,037 INFO L87 Difference]: Start difference. First operand 501 states and 708 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:20,081 INFO L93 Difference]: Finished difference Result 980 states and 1398 transitions. [2021-12-27 21:55:20,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:20,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-27 21:55:20,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:20,084 INFO L225 Difference]: With dead ends: 980 [2021-12-27 21:55:20,084 INFO L226 Difference]: Without dead ends: 739 [2021-12-27 21:55:20,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,086 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 125 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:20,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 464 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:20,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2021-12-27 21:55:20,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2021-12-27 21:55:20,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 738 states have (on average 1.4173441734417345) internal successors, (1046), 738 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1046 transitions. [2021-12-27 21:55:20,111 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1046 transitions. Word has length 104 [2021-12-27 21:55:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:20,112 INFO L470 AbstractCegarLoop]: Abstraction has 739 states and 1046 transitions. [2021-12-27 21:55:20,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,112 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1046 transitions. [2021-12-27 21:55:20,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-27 21:55:20,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:20,114 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:20,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-27 21:55:20,114 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:20,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:20,115 INFO L85 PathProgramCache]: Analyzing trace with hash 151283369, now seen corresponding path program 1 times [2021-12-27 21:55:20,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:20,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008068455] [2021-12-27 21:55:20,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:20,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,144 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-12-27 21:55:20,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008068455] [2021-12-27 21:55:20,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008068455] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178461254] [2021-12-27 21:55:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,147 INFO L87 Difference]: Start difference. First operand 739 states and 1046 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:20,167 INFO L93 Difference]: Finished difference Result 1239 states and 1758 transitions. [2021-12-27 21:55:20,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:20,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-12-27 21:55:20,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:20,171 INFO L225 Difference]: With dead ends: 1239 [2021-12-27 21:55:20,171 INFO L226 Difference]: Without dead ends: 760 [2021-12-27 21:55:20,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,172 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 11 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:20,172 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 345 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:20,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2021-12-27 21:55:20,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 760. [2021-12-27 21:55:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 759 states have (on average 1.4137022397891963) internal successors, (1073), 759 states have internal predecessors, (1073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1073 transitions. [2021-12-27 21:55:20,188 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1073 transitions. Word has length 104 [2021-12-27 21:55:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:20,188 INFO L470 AbstractCegarLoop]: Abstraction has 760 states and 1073 transitions. [2021-12-27 21:55:20,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,188 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1073 transitions. [2021-12-27 21:55:20,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-27 21:55:20,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:20,190 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:20,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-27 21:55:20,191 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:20,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:20,191 INFO L85 PathProgramCache]: Analyzing trace with hash -492994255, now seen corresponding path program 1 times [2021-12-27 21:55:20,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:20,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736656379] [2021-12-27 21:55:20,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:20,192 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-27 21:55:20,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736656379] [2021-12-27 21:55:20,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736656379] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725903520] [2021-12-27 21:55:20,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,226 INFO L87 Difference]: Start difference. First operand 760 states and 1073 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:20,264 INFO L93 Difference]: Finished difference Result 1001 states and 1419 transitions. [2021-12-27 21:55:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:20,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-27 21:55:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:20,268 INFO L225 Difference]: With dead ends: 1001 [2021-12-27 21:55:20,268 INFO L226 Difference]: Without dead ends: 999 [2021-12-27 21:55:20,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,271 INFO L933 BasicCegarLoop]: 157 mSDtfsCounter, 138 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:20,278 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 303 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:20,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2021-12-27 21:55:20,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 999. [2021-12-27 21:55:20,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 998 states have (on average 1.4198396793587174) internal successors, (1417), 998 states have internal predecessors, (1417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1417 transitions. [2021-12-27 21:55:20,304 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1417 transitions. Word has length 106 [2021-12-27 21:55:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:20,304 INFO L470 AbstractCegarLoop]: Abstraction has 999 states and 1417 transitions. [2021-12-27 21:55:20,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,304 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1417 transitions. [2021-12-27 21:55:20,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-27 21:55:20,307 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:20,307 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:20,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-27 21:55:20,307 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:20,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:20,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1913560025, now seen corresponding path program 1 times [2021-12-27 21:55:20,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:20,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721258380] [2021-12-27 21:55:20,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:20,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,343 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-27 21:55:20,343 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721258380] [2021-12-27 21:55:20,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721258380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,344 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,344 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177766602] [2021-12-27 21:55:20,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,346 INFO L87 Difference]: Start difference. First operand 999 states and 1417 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:20,440 INFO L93 Difference]: Finished difference Result 2064 states and 2956 transitions. [2021-12-27 21:55:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:20,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 131 [2021-12-27 21:55:20,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:20,445 INFO L225 Difference]: With dead ends: 2064 [2021-12-27 21:55:20,445 INFO L226 Difference]: Without dead ends: 1105 [2021-12-27 21:55:20,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,447 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:20,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 259 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:20,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2021-12-27 21:55:20,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1091. [2021-12-27 21:55:20,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1091 states, 1090 states have (on average 1.4027522935779817) internal successors, (1529), 1090 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1529 transitions. [2021-12-27 21:55:20,468 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1529 transitions. Word has length 131 [2021-12-27 21:55:20,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:20,469 INFO L470 AbstractCegarLoop]: Abstraction has 1091 states and 1529 transitions. [2021-12-27 21:55:20,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1529 transitions. [2021-12-27 21:55:20,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-12-27 21:55:20,476 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:20,476 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:20,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-27 21:55:20,477 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:20,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:20,477 INFO L85 PathProgramCache]: Analyzing trace with hash 296450083, now seen corresponding path program 1 times [2021-12-27 21:55:20,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:20,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259822115] [2021-12-27 21:55:20,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:20,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,515 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-27 21:55:20,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259822115] [2021-12-27 21:55:20,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259822115] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782820916] [2021-12-27 21:55:20,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,517 INFO L87 Difference]: Start difference. First operand 1091 states and 1529 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:20,650 INFO L93 Difference]: Finished difference Result 2346 states and 3350 transitions. [2021-12-27 21:55:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:20,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2021-12-27 21:55:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:20,655 INFO L225 Difference]: With dead ends: 2346 [2021-12-27 21:55:20,655 INFO L226 Difference]: Without dead ends: 1287 [2021-12-27 21:55:20,657 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,657 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 66 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:20,658 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 211 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:20,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2021-12-27 21:55:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1247. [2021-12-27 21:55:20,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 1.4069020866773676) internal successors, (1753), 1246 states have internal predecessors, (1753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 1753 transitions. [2021-12-27 21:55:20,682 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 1753 transitions. Word has length 152 [2021-12-27 21:55:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:20,683 INFO L470 AbstractCegarLoop]: Abstraction has 1247 states and 1753 transitions. [2021-12-27 21:55:20,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 1753 transitions. [2021-12-27 21:55:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-27 21:55:20,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:20,686 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:20,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-27 21:55:20,686 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:20,687 INFO L85 PathProgramCache]: Analyzing trace with hash 2080513012, now seen corresponding path program 1 times [2021-12-27 21:55:20,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:20,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124014521] [2021-12-27 21:55:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:20,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,734 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-27 21:55:20,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124014521] [2021-12-27 21:55:20,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124014521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,735 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098872086] [2021-12-27 21:55:20,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,737 INFO L87 Difference]: Start difference. First operand 1247 states and 1753 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:20,838 INFO L93 Difference]: Finished difference Result 2574 states and 3602 transitions. [2021-12-27 21:55:20,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:20,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-12-27 21:55:20,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:20,843 INFO L225 Difference]: With dead ends: 2574 [2021-12-27 21:55:20,843 INFO L226 Difference]: Without dead ends: 1367 [2021-12-27 21:55:20,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,845 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 10 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:20,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 260 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:20,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2021-12-27 21:55:20,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1359. [2021-12-27 21:55:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1359 states, 1358 states have (on average 1.3880706921944035) internal successors, (1885), 1358 states have internal predecessors, (1885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1359 states to 1359 states and 1885 transitions. [2021-12-27 21:55:20,872 INFO L78 Accepts]: Start accepts. Automaton has 1359 states and 1885 transitions. Word has length 188 [2021-12-27 21:55:20,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:20,872 INFO L470 AbstractCegarLoop]: Abstraction has 1359 states and 1885 transitions. [2021-12-27 21:55:20,873 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:20,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1359 states and 1885 transitions. [2021-12-27 21:55:20,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-27 21:55:20,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:20,876 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:20,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-27 21:55:20,876 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:20,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:20,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1653754506, now seen corresponding path program 1 times [2021-12-27 21:55:20,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:20,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639618344] [2021-12-27 21:55:20,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:20,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:20,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:20,919 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 204 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2021-12-27 21:55:20,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:20,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639618344] [2021-12-27 21:55:20,920 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639618344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:20,920 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:20,920 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:20,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244760382] [2021-12-27 21:55:20,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:20,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:20,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:20,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:20,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:20,922 INFO L87 Difference]: Start difference. First operand 1359 states and 1885 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:21,022 INFO L93 Difference]: Finished difference Result 2814 states and 3902 transitions. [2021-12-27 21:55:21,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:21,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-12-27 21:55:21,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:21,043 INFO L225 Difference]: With dead ends: 2814 [2021-12-27 21:55:21,043 INFO L226 Difference]: Without dead ends: 1495 [2021-12-27 21:55:21,046 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,046 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 11 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:21,047 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 261 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:21,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2021-12-27 21:55:21,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1483. [2021-12-27 21:55:21,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1483 states, 1482 states have (on average 1.3690958164642375) internal successors, (2029), 1482 states have internal predecessors, (2029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1483 states to 1483 states and 2029 transitions. [2021-12-27 21:55:21,075 INFO L78 Accepts]: Start accepts. Automaton has 1483 states and 2029 transitions. Word has length 188 [2021-12-27 21:55:21,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:21,075 INFO L470 AbstractCegarLoop]: Abstraction has 1483 states and 2029 transitions. [2021-12-27 21:55:21,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1483 states and 2029 transitions. [2021-12-27 21:55:21,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-27 21:55:21,078 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:21,079 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:21,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-27 21:55:21,079 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:21,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:21,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1229348372, now seen corresponding path program 1 times [2021-12-27 21:55:21,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:21,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707003666] [2021-12-27 21:55:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:21,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:21,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 323 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2021-12-27 21:55:21,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:21,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707003666] [2021-12-27 21:55:21,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707003666] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:21,133 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:21,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:21,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173396329] [2021-12-27 21:55:21,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:21,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:21,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:21,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:21,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,135 INFO L87 Difference]: Start difference. First operand 1483 states and 2029 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:21,173 INFO L93 Difference]: Finished difference Result 4365 states and 5987 transitions. [2021-12-27 21:55:21,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:21,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-12-27 21:55:21,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:21,182 INFO L225 Difference]: With dead ends: 4365 [2021-12-27 21:55:21,183 INFO L226 Difference]: Without dead ends: 2922 [2021-12-27 21:55:21,185 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,185 INFO L933 BasicCegarLoop]: 319 mSDtfsCounter, 126 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:21,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 482 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:21,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2922 states. [2021-12-27 21:55:21,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2922 to 2920. [2021-12-27 21:55:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2920 states, 2919 states have (on average 1.3706748886605002) internal successors, (4001), 2919 states have internal predecessors, (4001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2920 states to 2920 states and 4001 transitions. [2021-12-27 21:55:21,274 INFO L78 Accepts]: Start accepts. Automaton has 2920 states and 4001 transitions. Word has length 218 [2021-12-27 21:55:21,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:21,274 INFO L470 AbstractCegarLoop]: Abstraction has 2920 states and 4001 transitions. [2021-12-27 21:55:21,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,274 INFO L276 IsEmpty]: Start isEmpty. Operand 2920 states and 4001 transitions. [2021-12-27 21:55:21,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-12-27 21:55:21,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:21,280 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:21,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-27 21:55:21,280 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:21,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1790048150, now seen corresponding path program 1 times [2021-12-27 21:55:21,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:21,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664942402] [2021-12-27 21:55:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:21,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 549 backedges. 248 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-12-27 21:55:21,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:21,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664942402] [2021-12-27 21:55:21,321 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664942402] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:21,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:21,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:21,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065174263] [2021-12-27 21:55:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:21,322 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:21,322 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:21,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:21,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,323 INFO L87 Difference]: Start difference. First operand 2920 states and 4001 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:21,460 INFO L93 Difference]: Finished difference Result 6100 states and 8366 transitions. [2021-12-27 21:55:21,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:21,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2021-12-27 21:55:21,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:21,470 INFO L225 Difference]: With dead ends: 6100 [2021-12-27 21:55:21,471 INFO L226 Difference]: Without dead ends: 3220 [2021-12-27 21:55:21,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,474 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 11 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:21,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 261 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:21,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2021-12-27 21:55:21,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3204. [2021-12-27 21:55:21,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3204 states, 3203 states have (on average 1.3502965969403684) internal successors, (4325), 3203 states have internal predecessors, (4325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 4325 transitions. [2021-12-27 21:55:21,543 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 4325 transitions. Word has length 218 [2021-12-27 21:55:21,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:21,543 INFO L470 AbstractCegarLoop]: Abstraction has 3204 states and 4325 transitions. [2021-12-27 21:55:21,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 3 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 4325 transitions. [2021-12-27 21:55:21,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-12-27 21:55:21,549 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:21,549 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:21,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-27 21:55:21,550 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:21,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:21,550 INFO L85 PathProgramCache]: Analyzing trace with hash 678419774, now seen corresponding path program 1 times [2021-12-27 21:55:21,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:21,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756128484] [2021-12-27 21:55:21,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:21,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:21,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:21,618 INFO L134 CoverageAnalysis]: Checked inductivity of 704 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2021-12-27 21:55:21,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:21,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756128484] [2021-12-27 21:55:21,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756128484] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:21,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:21,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:21,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993231999] [2021-12-27 21:55:21,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:21,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:21,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:21,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:21,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,621 INFO L87 Difference]: Start difference. First operand 3204 states and 4325 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:21,749 INFO L93 Difference]: Finished difference Result 6516 states and 8798 transitions. [2021-12-27 21:55:21,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:21,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 242 [2021-12-27 21:55:21,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:21,762 INFO L225 Difference]: With dead ends: 6516 [2021-12-27 21:55:21,762 INFO L226 Difference]: Without dead ends: 3352 [2021-12-27 21:55:21,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,768 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 10 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:21,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 260 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:21,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3352 states. [2021-12-27 21:55:21,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3352 to 3336. [2021-12-27 21:55:21,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3336 states, 3335 states have (on average 1.3424287856071964) internal successors, (4477), 3335 states have internal predecessors, (4477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 4477 transitions. [2021-12-27 21:55:21,876 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 4477 transitions. Word has length 242 [2021-12-27 21:55:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:21,876 INFO L470 AbstractCegarLoop]: Abstraction has 3336 states and 4477 transitions. [2021-12-27 21:55:21,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:21,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 4477 transitions. [2021-12-27 21:55:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-27 21:55:21,883 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:21,883 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:21,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-27 21:55:21,884 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:21,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:21,884 INFO L85 PathProgramCache]: Analyzing trace with hash -101941725, now seen corresponding path program 1 times [2021-12-27 21:55:21,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:21,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016727133] [2021-12-27 21:55:21,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:21,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:21,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:21,933 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-27 21:55:21,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:21,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016727133] [2021-12-27 21:55:21,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016727133] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:21,934 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:21,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:21,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472927396] [2021-12-27 21:55:21,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:21,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:21,935 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:21,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:21,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:21,936 INFO L87 Difference]: Start difference. First operand 3336 states and 4477 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:22,105 INFO L93 Difference]: Finished difference Result 7032 states and 9578 transitions. [2021-12-27 21:55:22,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:22,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-12-27 21:55:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:22,118 INFO L225 Difference]: With dead ends: 7032 [2021-12-27 21:55:22,119 INFO L226 Difference]: Without dead ends: 3736 [2021-12-27 21:55:22,122 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:22,123 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 44 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:22,123 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 253 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:22,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3736 states. [2021-12-27 21:55:22,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3736 to 3648. [2021-12-27 21:55:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3648 states, 3647 states have (on average 1.3284891691801481) internal successors, (4845), 3647 states have internal predecessors, (4845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3648 states to 3648 states and 4845 transitions. [2021-12-27 21:55:22,221 INFO L78 Accepts]: Start accepts. Automaton has 3648 states and 4845 transitions. Word has length 253 [2021-12-27 21:55:22,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:22,222 INFO L470 AbstractCegarLoop]: Abstraction has 3648 states and 4845 transitions. [2021-12-27 21:55:22,222 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,222 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 4845 transitions. [2021-12-27 21:55:22,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-27 21:55:22,230 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:22,231 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:22,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-27 21:55:22,231 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:22,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash 324455461, now seen corresponding path program 1 times [2021-12-27 21:55:22,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:22,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285194545] [2021-12-27 21:55:22,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:22,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:22,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:22,282 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-27 21:55:22,283 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:22,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285194545] [2021-12-27 21:55:22,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285194545] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:22,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:22,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:22,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118824007] [2021-12-27 21:55:22,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:22,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:22,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:22,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:22,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:22,285 INFO L87 Difference]: Start difference. First operand 3648 states and 4845 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:22,456 INFO L93 Difference]: Finished difference Result 7664 states and 10122 transitions. [2021-12-27 21:55:22,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:22,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2021-12-27 21:55:22,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:22,471 INFO L225 Difference]: With dead ends: 7664 [2021-12-27 21:55:22,472 INFO L226 Difference]: Without dead ends: 4056 [2021-12-27 21:55:22,477 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:22,477 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 135 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:22,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 139 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4056 states. [2021-12-27 21:55:22,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4056 to 3768. [2021-12-27 21:55:22,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3767 states have (on average 1.3243960711441465) internal successors, (4989), 3767 states have internal predecessors, (4989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4989 transitions. [2021-12-27 21:55:22,587 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4989 transitions. Word has length 267 [2021-12-27 21:55:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:22,588 INFO L470 AbstractCegarLoop]: Abstraction has 3768 states and 4989 transitions. [2021-12-27 21:55:22,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,588 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4989 transitions. [2021-12-27 21:55:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-27 21:55:22,596 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:22,596 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:22,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-27 21:55:22,597 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:22,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:22,597 INFO L85 PathProgramCache]: Analyzing trace with hash 842255411, now seen corresponding path program 1 times [2021-12-27 21:55:22,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:22,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384680554] [2021-12-27 21:55:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:22,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:22,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 395 proven. 0 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2021-12-27 21:55:22,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:22,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384680554] [2021-12-27 21:55:22,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384680554] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:22,661 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:22,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:22,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218099542] [2021-12-27 21:55:22,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:22,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:22,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:22,663 INFO L87 Difference]: Start difference. First operand 3768 states and 4989 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:22,757 INFO L93 Difference]: Finished difference Result 10720 states and 14279 transitions. [2021-12-27 21:55:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 268 [2021-12-27 21:55:22,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:22,771 INFO L225 Difference]: With dead ends: 10720 [2021-12-27 21:55:22,771 INFO L226 Difference]: Without dead ends: 6992 [2021-12-27 21:55:22,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:22,778 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 83 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:22,778 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 469 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:22,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6992 states. [2021-12-27 21:55:22,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6992 to 6990. [2021-12-27 21:55:22,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6990 states, 6989 states have (on average 1.3325225354127914) internal successors, (9313), 6989 states have internal predecessors, (9313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6990 states to 6990 states and 9313 transitions. [2021-12-27 21:55:22,968 INFO L78 Accepts]: Start accepts. Automaton has 6990 states and 9313 transitions. Word has length 268 [2021-12-27 21:55:22,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:22,968 INFO L470 AbstractCegarLoop]: Abstraction has 6990 states and 9313 transitions. [2021-12-27 21:55:22,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:22,969 INFO L276 IsEmpty]: Start isEmpty. Operand 6990 states and 9313 transitions. [2021-12-27 21:55:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-12-27 21:55:22,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:22,980 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:22,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-27 21:55:22,980 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:22,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:22,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1556363552, now seen corresponding path program 1 times [2021-12-27 21:55:22,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:22,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667592087] [2021-12-27 21:55:22,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:22,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-12-27 21:55:23,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:23,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667592087] [2021-12-27 21:55:23,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667592087] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:23,024 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:23,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:23,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995248936] [2021-12-27 21:55:23,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:23,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:23,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:23,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:23,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:23,026 INFO L87 Difference]: Start difference. First operand 6990 states and 9313 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:23,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:23,205 INFO L93 Difference]: Finished difference Result 13948 states and 18570 transitions. [2021-12-27 21:55:23,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:23,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2021-12-27 21:55:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:23,220 INFO L225 Difference]: With dead ends: 13948 [2021-12-27 21:55:23,220 INFO L226 Difference]: Without dead ends: 6998 [2021-12-27 21:55:23,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:23,230 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 11 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:23,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 256 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:23,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6998 states. [2021-12-27 21:55:23,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6998 to 6966. [2021-12-27 21:55:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6966 states, 6965 states have (on average 1.3061019382627423) internal successors, (9097), 6965 states have internal predecessors, (9097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:23,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6966 states to 6966 states and 9097 transitions. [2021-12-27 21:55:23,413 INFO L78 Accepts]: Start accepts. Automaton has 6966 states and 9097 transitions. Word has length 269 [2021-12-27 21:55:23,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:23,414 INFO L470 AbstractCegarLoop]: Abstraction has 6966 states and 9097 transitions. [2021-12-27 21:55:23,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:23,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6966 states and 9097 transitions. [2021-12-27 21:55:23,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-12-27 21:55:23,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:23,425 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:23,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-27 21:55:23,425 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:23,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:23,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1277617296, now seen corresponding path program 1 times [2021-12-27 21:55:23,426 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:23,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448427951] [2021-12-27 21:55:23,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:23,426 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:23,482 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-27 21:55:23,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:23,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448427951] [2021-12-27 21:55:23,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448427951] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 21:55:23,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107633985] [2021-12-27 21:55:23,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:23,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:23,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:55:23,487 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:55:23,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-27 21:55:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:23,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-27 21:55:23,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:55:24,261 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-27 21:55:24,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 21:55:24,600 INFO L134 CoverageAnalysis]: Checked inductivity of 915 backedges. 328 proven. 18 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-27 21:55:24,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107633985] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-27 21:55:24,600 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-27 21:55:24,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-27 21:55:24,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967209509] [2021-12-27 21:55:24,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-27 21:55:24,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-27 21:55:24,603 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:24,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-27 21:55:24,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-27 21:55:24,605 INFO L87 Difference]: Start difference. First operand 6966 states and 9097 transitions. Second operand has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:25,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:25,181 INFO L93 Difference]: Finished difference Result 18432 states and 24463 transitions. [2021-12-27 21:55:25,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-27 21:55:25,182 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 292 [2021-12-27 21:55:25,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:25,206 INFO L225 Difference]: With dead ends: 18432 [2021-12-27 21:55:25,206 INFO L226 Difference]: Without dead ends: 11450 [2021-12-27 21:55:25,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-27 21:55:25,219 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 217 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 594 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 898 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 594 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:25,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 898 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 594 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-27 21:55:25,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11450 states. [2021-12-27 21:55:25,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11450 to 9800. [2021-12-27 21:55:25,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9800 states, 9799 states have (on average 1.3263598326359833) internal successors, (12997), 9799 states have internal predecessors, (12997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:25,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9800 states to 9800 states and 12997 transitions. [2021-12-27 21:55:25,474 INFO L78 Accepts]: Start accepts. Automaton has 9800 states and 12997 transitions. Word has length 292 [2021-12-27 21:55:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:25,474 INFO L470 AbstractCegarLoop]: Abstraction has 9800 states and 12997 transitions. [2021-12-27 21:55:25,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.166666666666664) internal successors, (211), 6 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:25,474 INFO L276 IsEmpty]: Start isEmpty. Operand 9800 states and 12997 transitions. [2021-12-27 21:55:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-12-27 21:55:25,534 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:25,535 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:25,560 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-27 21:55:25,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-27 21:55:25,736 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:25,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:25,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1037661491, now seen corresponding path program 2 times [2021-12-27 21:55:25,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:25,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640164902] [2021-12-27 21:55:25,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:25,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:25,792 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 407 proven. 5 refuted. 0 times theorem prover too weak. 569 trivial. 0 not checked. [2021-12-27 21:55:25,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:25,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640164902] [2021-12-27 21:55:25,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640164902] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 21:55:25,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460451659] [2021-12-27 21:55:25,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-27 21:55:25,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:25,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:55:25,795 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:55:25,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-27 21:55:25,926 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-27 21:55:25,926 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-27 21:55:25,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-27 21:55:25,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:55:26,317 INFO L134 CoverageAnalysis]: Checked inductivity of 981 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2021-12-27 21:55:26,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 21:55:26,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460451659] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:26,318 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-27 21:55:26,318 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-27 21:55:26,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721448504] [2021-12-27 21:55:26,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:26,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:26,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:26,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:26,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-27 21:55:26,319 INFO L87 Difference]: Start difference. First operand 9800 states and 12997 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:26,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:26,530 INFO L93 Difference]: Finished difference Result 19604 states and 25974 transitions. [2021-12-27 21:55:26,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:26,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-12-27 21:55:26,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:26,549 INFO L225 Difference]: With dead ends: 19604 [2021-12-27 21:55:26,549 INFO L226 Difference]: Without dead ends: 9844 [2021-12-27 21:55:26,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-27 21:55:26,561 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 53 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:26,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 236 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:26,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9844 states. [2021-12-27 21:55:26,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9844 to 8988. [2021-12-27 21:55:26,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8988 states, 8987 states have (on average 1.2837431845999778) internal successors, (11537), 8987 states have internal predecessors, (11537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:26,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8988 states to 8988 states and 11537 transitions. [2021-12-27 21:55:26,745 INFO L78 Accepts]: Start accepts. Automaton has 8988 states and 11537 transitions. Word has length 305 [2021-12-27 21:55:26,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:26,745 INFO L470 AbstractCegarLoop]: Abstraction has 8988 states and 11537 transitions. [2021-12-27 21:55:26,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand 8988 states and 11537 transitions. [2021-12-27 21:55:26,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2021-12-27 21:55:26,762 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:26,763 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:26,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-27 21:55:26,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-27 21:55:26,980 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:26,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:26,980 INFO L85 PathProgramCache]: Analyzing trace with hash 650041975, now seen corresponding path program 1 times [2021-12-27 21:55:26,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:26,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101428153] [2021-12-27 21:55:26,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:26,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:27,065 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 954 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-27 21:55:27,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:27,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101428153] [2021-12-27 21:55:27,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101428153] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 21:55:27,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368354325] [2021-12-27 21:55:27,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:27,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:27,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:55:27,068 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:55:27,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-27 21:55:27,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:27,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-27 21:55:27,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:55:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 821 proven. 0 refuted. 0 times theorem prover too weak. 827 trivial. 0 not checked. [2021-12-27 21:55:27,891 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-27 21:55:27,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368354325] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:27,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-27 21:55:27,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-27 21:55:27,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425386012] [2021-12-27 21:55:27,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:27,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:27,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:27,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-27 21:55:27,894 INFO L87 Difference]: Start difference. First operand 8988 states and 11537 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:28,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:28,043 INFO L93 Difference]: Finished difference Result 22010 states and 28224 transitions. [2021-12-27 21:55:28,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:28,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 372 [2021-12-27 21:55:28,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:28,072 INFO L225 Difference]: With dead ends: 22010 [2021-12-27 21:55:28,072 INFO L226 Difference]: Without dead ends: 13062 [2021-12-27 21:55:28,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 372 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-27 21:55:28,085 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 61 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:28,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 472 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-27 21:55:28,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13062 states. [2021-12-27 21:55:28,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13062 to 13062. [2021-12-27 21:55:28,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13062 states, 13061 states have (on average 1.2796110558150218) internal successors, (16713), 13061 states have internal predecessors, (16713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:28,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13062 states to 13062 states and 16713 transitions. [2021-12-27 21:55:28,384 INFO L78 Accepts]: Start accepts. Automaton has 13062 states and 16713 transitions. Word has length 372 [2021-12-27 21:55:28,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:28,384 INFO L470 AbstractCegarLoop]: Abstraction has 13062 states and 16713 transitions. [2021-12-27 21:55:28,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:28,385 INFO L276 IsEmpty]: Start isEmpty. Operand 13062 states and 16713 transitions. [2021-12-27 21:55:28,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-12-27 21:55:28,407 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:28,407 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 15, 15, 15, 15, 15, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:28,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-27 21:55:28,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:28,623 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:28,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:28,624 INFO L85 PathProgramCache]: Analyzing trace with hash -590181313, now seen corresponding path program 1 times [2021-12-27 21:55:28,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:28,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841205641] [2021-12-27 21:55:28,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:28,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-27 21:55:28,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:28,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841205641] [2021-12-27 21:55:28,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841205641] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 21:55:28,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501652981] [2021-12-27 21:55:28,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:28,692 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:28,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:55:28,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:55:28,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-27 21:55:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:28,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-27 21:55:28,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:55:29,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-27 21:55:29,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 21:55:29,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1650 backedges. 956 proven. 5 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2021-12-27 21:55:29,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501652981] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-27 21:55:29,748 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-27 21:55:29,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2021-12-27 21:55:29,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117460205] [2021-12-27 21:55:29,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-27 21:55:29,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-27 21:55:29,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:29,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-27 21:55:29,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-27 21:55:29,750 INFO L87 Difference]: Start difference. First operand 13062 states and 16713 transitions. Second operand has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:30,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:30,219 INFO L93 Difference]: Finished difference Result 29734 states and 37874 transitions. [2021-12-27 21:55:30,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-27 21:55:30,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2021-12-27 21:55:30,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:30,252 INFO L225 Difference]: With dead ends: 29734 [2021-12-27 21:55:30,252 INFO L226 Difference]: Without dead ends: 16700 [2021-12-27 21:55:30,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 752 GetRequests, 747 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-12-27 21:55:30,268 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 434 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:30,271 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [434 Valid, 426 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-27 21:55:30,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16700 states. [2021-12-27 21:55:30,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16700 to 14417. [2021-12-27 21:55:30,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14417 states, 14416 states have (on average 1.278718091009989) internal successors, (18434), 14416 states have internal predecessors, (18434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:30,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14417 states to 14417 states and 18434 transitions. [2021-12-27 21:55:30,593 INFO L78 Accepts]: Start accepts. Automaton has 14417 states and 18434 transitions. Word has length 374 [2021-12-27 21:55:30,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:30,594 INFO L470 AbstractCegarLoop]: Abstraction has 14417 states and 18434 transitions. [2021-12-27 21:55:30,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 38.666666666666664) internal successors, (232), 6 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:30,594 INFO L276 IsEmpty]: Start isEmpty. Operand 14417 states and 18434 transitions. [2021-12-27 21:55:30,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2021-12-27 21:55:30,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:30,629 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 16, 16, 16, 14, 14, 12, 12, 10, 10, 8, 8, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:30,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-27 21:55:30,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:30,843 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:30,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1273645298, now seen corresponding path program 1 times [2021-12-27 21:55:30,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:30,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459689510] [2021-12-27 21:55:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:30,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1971 backedges. 886 proven. 0 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2021-12-27 21:55:30,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:30,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459689510] [2021-12-27 21:55:30,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459689510] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-27 21:55:30,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-27 21:55:30,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-27 21:55:30,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372891684] [2021-12-27 21:55:30,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-27 21:55:30,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-27 21:55:30,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:30,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-27 21:55:30,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:30,924 INFO L87 Difference]: Start difference. First operand 14417 states and 18434 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:31,171 INFO L93 Difference]: Finished difference Result 25708 states and 32305 transitions. [2021-12-27 21:55:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-27 21:55:31,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 413 [2021-12-27 21:55:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:31,183 INFO L225 Difference]: With dead ends: 25708 [2021-12-27 21:55:31,183 INFO L226 Difference]: Without dead ends: 5877 [2021-12-27 21:55:31,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-27 21:55:31,198 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 39 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 262 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:31,199 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 262 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-27 21:55:31,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5877 states. [2021-12-27 21:55:31,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5877 to 5476. [2021-12-27 21:55:31,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 1.2622831050228311) internal successors, (6911), 5475 states have internal predecessors, (6911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 6911 transitions. [2021-12-27 21:55:31,313 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 6911 transitions. Word has length 413 [2021-12-27 21:55:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:31,313 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 6911 transitions. [2021-12-27 21:55:31,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:31,314 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 6911 transitions. [2021-12-27 21:55:31,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2021-12-27 21:55:31,321 INFO L506 BasicCegarLoop]: Found error trace [2021-12-27 21:55:31,321 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 13, 13, 12, 12, 11, 11, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:31,322 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-12-27 21:55:31,322 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-27 21:55:31,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-27 21:55:31,323 INFO L85 PathProgramCache]: Analyzing trace with hash 381067605, now seen corresponding path program 1 times [2021-12-27 21:55:31,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-27 21:55:31,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596392010] [2021-12-27 21:55:31,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:31,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-27 21:55:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:31,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-12-27 21:55:31,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-27 21:55:31,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596392010] [2021-12-27 21:55:31,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596392010] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-27 21:55:31,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527624879] [2021-12-27 21:55:31,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-27 21:55:31,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-27 21:55:31,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-27 21:55:31,394 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-27 21:55:31,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-27 21:55:31,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-27 21:55:31,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-27 21:55:31,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-27 21:55:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-12-27 21:55:32,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-27 21:55:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2042 backedges. 1283 proven. 14 refuted. 0 times theorem prover too weak. 745 trivial. 0 not checked. [2021-12-27 21:55:32,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527624879] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-27 21:55:32,724 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-27 21:55:32,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-12-27 21:55:32,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952213530] [2021-12-27 21:55:32,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-27 21:55:32,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-27 21:55:32,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-27 21:55:32,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-27 21:55:32,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-27 21:55:32,725 INFO L87 Difference]: Start difference. First operand 5476 states and 6911 transitions. Second operand has 8 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:33,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-27 21:55:33,015 INFO L93 Difference]: Finished difference Result 6913 states and 8716 transitions. [2021-12-27 21:55:33,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-27 21:55:33,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 442 [2021-12-27 21:55:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-27 21:55:33,016 INFO L225 Difference]: With dead ends: 6913 [2021-12-27 21:55:33,016 INFO L226 Difference]: Without dead ends: 0 [2021-12-27 21:55:33,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 890 GetRequests, 882 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-27 21:55:33,020 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 112 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-27 21:55:33,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 636 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-27 21:55:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-27 21:55:33,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-27 21:55:33,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:33,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-27 21:55:33,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 442 [2021-12-27 21:55:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-27 21:55:33,021 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-27 21:55:33,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.625) internal successors, (317), 8 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-27 21:55:33,021 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-27 21:55:33,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-27 21:55:33,024 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-27 21:55:33,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-27 21:55:33,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-27 21:55:33,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-27 21:55:38,989 INFO L858 garLoopResultBuilder]: For program point L366(lines 366 371) no Hoare annotation was computed. [2021-12-27 21:55:38,989 INFO L858 garLoopResultBuilder]: For program point L366-2(lines 366 371) no Hoare annotation was computed. [2021-12-27 21:55:38,989 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 237) no Hoare annotation was computed. [2021-12-27 21:55:38,989 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 495) no Hoare annotation was computed. [2021-12-27 21:55:38,989 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 506) no Hoare annotation was computed. [2021-12-27 21:55:38,989 INFO L858 garLoopResultBuilder]: For program point L135(lines 135 517) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 466 468) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L268(lines 268 270) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L854 garLoopResultBuilder]: At program point L202(lines 198 496) the Hoare annotation is: (let ((.cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse3 (< |ULTIMATE.start_ssl3_connect_~s__state~0#1| 12292)) (.cse4 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse5 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse2 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse4 .cse5 .cse3 .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (and .cse4 .cse0 .cse3 .cse2) (and .cse4 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse5 .cse1 .cse2))) [2021-12-27 21:55:38,990 INFO L854 garLoopResultBuilder]: At program point L136(lines 132 518) the Hoare annotation is: (let ((.cse0 (not (<= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (.cse1 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1) .cse1))) [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L103(lines 103 105) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L861 garLoopResultBuilder]: At program point L566(lines 558 568) the Hoare annotation is: true [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 337) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L335-2(lines 211 490) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L402(lines 402 405) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 494) no Hoare annotation was computed. [2021-12-27 21:55:38,990 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 505) no Hoare annotation was computed. [2021-12-27 21:55:38,991 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 516) no Hoare annotation was computed. [2021-12-27 21:55:38,991 INFO L858 garLoopResultBuilder]: For program point L535(lines 535 539) no Hoare annotation was computed. [2021-12-27 21:55:38,991 INFO L858 garLoopResultBuilder]: For program point L238(lines 238 241) no Hoare annotation was computed. [2021-12-27 21:55:38,991 INFO L854 garLoopResultBuilder]: At program point L205(lines 204 494) the Hoare annotation is: (let ((.cse3 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse2 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse5 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (or (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse0 .cse1 .cse2) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse3 .cse4 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse1 .cse2 .cse5) (and .cse3 .cse4 .cse0 .cse1 .cse2 .cse5))) [2021-12-27 21:55:38,992 INFO L854 garLoopResultBuilder]: At program point L172(lines 162 508) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse2 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1 .cse2) (and .cse0 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse1 .cse2) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-27 21:55:38,992 INFO L858 garLoopResultBuilder]: For program point L437(lines 437 439) no Hoare annotation was computed. [2021-12-27 21:55:38,992 INFO L858 garLoopResultBuilder]: For program point L207(lines 207 493) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L174(lines 174 504) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 515) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L108-1(lines 86 556) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L472(lines 472 474) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L472-2(lines 472 474) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 309) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L858 garLoopResultBuilder]: For program point L307-2(lines 211 490) no Hoare annotation was computed. [2021-12-27 21:55:38,993 INFO L861 garLoopResultBuilder]: At program point L208(lines 207 493) the Hoare annotation is: true [2021-12-27 21:55:38,994 INFO L854 garLoopResultBuilder]: At program point L142(lines 138 516) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse2 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse1 .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1 .cse2))) [2021-12-27 21:55:38,994 INFO L858 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-12-27 21:55:38,995 INFO L858 garLoopResultBuilder]: For program point L440(lines 440 444) no Hoare annotation was computed. [2021-12-27 21:55:38,995 INFO L858 garLoopResultBuilder]: For program point L440-2(lines 440 444) no Hoare annotation was computed. [2021-12-27 21:55:38,995 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 345) no Hoare annotation was computed. [2021-12-27 21:55:38,996 INFO L858 garLoopResultBuilder]: For program point L275(lines 275 277) no Hoare annotation was computed. [2021-12-27 21:55:38,996 INFO L858 garLoopResultBuilder]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2021-12-27 21:55:38,997 INFO L858 garLoopResultBuilder]: For program point L275-2(lines 211 490) no Hoare annotation was computed. [2021-12-27 21:55:38,997 INFO L861 garLoopResultBuilder]: At program point L210(lines 209 493) the Hoare annotation is: true [2021-12-27 21:55:38,997 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 503) no Hoare annotation was computed. [2021-12-27 21:55:38,997 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 514) no Hoare annotation was computed. [2021-12-27 21:55:38,997 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 525) no Hoare annotation was computed. [2021-12-27 21:55:38,997 INFO L854 garLoopResultBuilder]: At program point L178(lines 174 504) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse2 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1 .cse2) (and .cse0 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse1 .cse2) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-27 21:55:38,997 INFO L854 garLoopResultBuilder]: At program point L112(lines 111 525) the Hoare annotation is: (and (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2021-12-27 21:55:38,997 INFO L858 garLoopResultBuilder]: For program point L410(lines 410 412) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L858 garLoopResultBuilder]: For program point L377(lines 377 379) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L858 garLoopResultBuilder]: For program point L180(lines 180 502) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 513) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 524) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L858 garLoopResultBuilder]: For program point L478(lines 478 480) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L858 garLoopResultBuilder]: For program point L478-2(lines 478 480) no Hoare annotation was computed. [2021-12-27 21:55:38,998 INFO L854 garLoopResultBuilder]: At program point L148(lines 144 514) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse1 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (and .cse2 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2021-12-27 21:55:38,998 INFO L861 garLoopResultBuilder]: At program point L545(lines 107 546) the Hoare annotation is: true [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L281(lines 281 285) no Hoare annotation was computed. [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 251) no Hoare annotation was computed. [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 318) no Hoare annotation was computed. [2021-12-27 21:55:38,999 INFO L854 garLoopResultBuilder]: At program point L216(lines 114 524) the Hoare annotation is: (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0) [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L183(lines 183 501) no Hoare annotation was computed. [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 512) no Hoare annotation was computed. [2021-12-27 21:55:38,999 INFO L858 garLoopResultBuilder]: For program point L117(lines 117 523) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L854 garLoopResultBuilder]: At program point L184(lines 180 502) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse1 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse2 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse1 .cse2) (and .cse0 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse1 .cse2) (and .cse1 .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 485) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point L450(lines 450 461) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 431) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point L417-1(lines 417 431) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point L450-2(lines 450 461) no Hoare annotation was computed. [2021-12-27 21:55:39,000 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 500) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 511) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 522) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 552) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L550-2(lines 550 552) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L854 garLoopResultBuilder]: At program point L154(lines 150 512) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse1 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) (and .cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse0 .cse1 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (and .cse2 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1))) [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 355) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2021-12-27 21:55:39,001 INFO L858 garLoopResultBuilder]: For program point L221-2(lines 221 223) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L858 garLoopResultBuilder]: For program point L387(lines 387 389) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 499) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L858 garLoopResultBuilder]: For program point L156(lines 156 510) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 521) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L858 garLoopResultBuilder]: For program point L421(lines 421 427) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-27 21:55:39,002 INFO L854 garLoopResultBuilder]: At program point L190(lines 186 500) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse1 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse0 .cse1) (and (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-27 21:55:39,003 INFO L858 garLoopResultBuilder]: For program point L455(lines 455 458) no Hoare annotation was computed. [2021-12-27 21:55:39,003 INFO L858 garLoopResultBuilder]: For program point L323(lines 323 325) no Hoare annotation was computed. [2021-12-27 21:55:39,003 INFO L858 garLoopResultBuilder]: For program point L290-1(lines 290 300) no Hoare annotation was computed. [2021-12-27 21:55:39,003 INFO L861 garLoopResultBuilder]: At program point L555(lines 22 557) the Hoare annotation is: true [2021-12-27 21:55:39,003 INFO L854 garLoopResultBuilder]: At program point L324(lines 86 556) the Hoare annotation is: false [2021-12-27 21:55:39,003 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 498) no Hoare annotation was computed. [2021-12-27 21:55:39,004 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 509) no Hoare annotation was computed. [2021-12-27 21:55:39,004 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 520) no Hoare annotation was computed. [2021-12-27 21:55:39,004 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 229) no Hoare annotation was computed. [2021-12-27 21:55:39,004 INFO L854 garLoopResultBuilder]: At program point L160(lines 156 510) the Hoare annotation is: (let ((.cse1 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (.cse0 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse2 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse3 (< 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and .cse0 .cse1 .cse2 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4) .cse3) (and .cse0 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560) .cse1 .cse2 .cse3) (and .cse2 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0) .cse3) (and .cse0 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse2 .cse3))) [2021-12-27 21:55:39,004 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 100) no Hoare annotation was computed. [2021-12-27 21:55:39,004 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-27 21:55:39,005 INFO L854 garLoopResultBuilder]: At program point L491(lines 108 544) the Hoare annotation is: (let ((.cse0 (= 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse8 (= 4528 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse9 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse15 (= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse14 (= 4512 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse2 (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|)) (.cse3 (<= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 4)) (.cse7 (= 3 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse4 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse5 (< 4432 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse16 (= 4416 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse1 (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0)) (.cse10 (<= |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1| 4560)) (.cse6 (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|)) (.cse12 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4352)) (.cse13 (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (.cse11 (<= 4560 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse1 .cse2 .cse4 .cse3 .cse5) (and (= 4384 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 1)) (and .cse1 .cse6 .cse7) (and .cse0 .cse1 .cse6) (and .cse1 .cse2 .cse8) (and .cse6 .cse8) (and .cse6 .cse4 .cse9) (and .cse10 .cse2 .cse7) (and .cse1 .cse10 .cse2 .cse4 .cse9 .cse11) (and (= 3 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0#1|) .cse6 .cse12 .cse13) (and .cse1 .cse2 (= 4480 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (and .cse1 .cse14 .cse2) (and .cse10 .cse6 .cse7) (and .cse1 .cse2 (= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (and .cse1 .cse10 .cse2 .cse3 .cse15) (and .cse1 .cse6 .cse15) (and .cse1 .cse2 .cse16 .cse3) (and .cse1 .cse10 .cse2 .cse12 .cse13 .cse11) (and .cse1 (= 4496 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) .cse2) (and .cse14 .cse6) (and .cse1 .cse2 .cse3 .cse7) (and .cse1 .cse6 .cse4 .cse5) (and .cse1 .cse6 .cse16) (and .cse1 .cse10 .cse6 .cse12 .cse13 .cse11) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0))) [2021-12-27 21:55:39,005 INFO L858 garLoopResultBuilder]: For program point L326(lines 326 328) no Hoare annotation was computed. [2021-12-27 21:55:39,005 INFO L858 garLoopResultBuilder]: For program point L260(lines 260 262) no Hoare annotation was computed. [2021-12-27 21:55:39,005 INFO L858 garLoopResultBuilder]: For program point L260-2(lines 211 490) no Hoare annotation was computed. [2021-12-27 21:55:39,005 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 397) no Hoare annotation was computed. [2021-12-27 21:55:39,005 INFO L858 garLoopResultBuilder]: For program point L393-2(lines 211 490) no Hoare annotation was computed. [2021-12-27 21:55:39,005 INFO L858 garLoopResultBuilder]: For program point L294(lines 294 296) no Hoare annotation was computed. [2021-12-27 21:55:39,006 INFO L858 garLoopResultBuilder]: For program point L294-2(lines 292 300) no Hoare annotation was computed. [2021-12-27 21:55:39,006 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 497) no Hoare annotation was computed. [2021-12-27 21:55:39,006 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 508) no Hoare annotation was computed. [2021-12-27 21:55:39,006 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 519) no Hoare annotation was computed. [2021-12-27 21:55:39,006 INFO L858 garLoopResultBuilder]: For program point L526(lines 526 542) no Hoare annotation was computed. [2021-12-27 21:55:39,006 INFO L854 garLoopResultBuilder]: At program point L196(lines 192 498) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_connect_~s__state~0#1| 4560)) (.cse1 (<= 4464 |ULTIMATE.start_ssl3_connect_~s__state~0#1|))) (or (and (= |ULTIMATE.start_ssl3_connect_~s__hit~0#1| 0) (= 256 |ULTIMATE.start_ssl3_connect_~s__s3__tmp__new_cipher__algorithms~0#1|) .cse0 .cse1) (and (= 2 |ULTIMATE.start_ssl3_connect_~blastFlag~0#1|) .cse0 .cse1) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)))) [2021-12-27 21:55:39,006 INFO L854 garLoopResultBuilder]: At program point L130(lines 126 520) the Hoare annotation is: (and (not (<= 4400 |ULTIMATE.start_ssl3_connect_~s__state~0#1|)) (<= 4352 |ULTIMATE.start_ssl3_connect_~s__state~0#1|) (= |ULTIMATE.start_ssl3_connect_~blastFlag~0#1| 0)) [2021-12-27 21:55:39,006 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 99) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point L97-2(lines 94 100) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point L527(lines 527 541) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point L362(lines 362 364) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 554) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point L528(lines 528 533) no Hoare annotation was computed. [2021-12-27 21:55:39,008 INFO L858 garLoopResultBuilder]: For program point L528-2(lines 527 541) no Hoare annotation was computed. [2021-12-27 21:55:39,009 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 496) no Hoare annotation was computed. [2021-12-27 21:55:39,009 INFO L858 garLoopResultBuilder]: For program point L165(lines 165 507) no Hoare annotation was computed. [2021-12-27 21:55:39,009 INFO L858 garLoopResultBuilder]: For program point L132(lines 132 518) no Hoare annotation was computed. [2021-12-27 21:55:39,009 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 243) no Hoare annotation was computed. [2021-12-27 21:55:39,009 INFO L858 garLoopResultBuilder]: For program point L232-2(lines 211 490) no Hoare annotation was computed. [2021-12-27 21:55:39,009 INFO L858 garLoopResultBuilder]: For program point L530(lines 530 532) no Hoare annotation was computed. [2021-12-27 21:55:39,013 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-27 21:55:39,014 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-27 21:55:39,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 09:55:39 BoogieIcfgContainer [2021-12-27 21:55:39,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-27 21:55:39,054 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-27 21:55:39,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-27 21:55:39,054 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-27 21:55:39,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 09:55:18" (3/4) ... [2021-12-27 21:55:39,057 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-27 21:55:39,069 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-27 21:55:39,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-27 21:55:39,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-27 21:55:39,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-27 21:55:39,125 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-27 21:55:39,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-27 21:55:39,126 INFO L158 Benchmark]: Toolchain (without parser) took 22186.59ms. Allocated memory was 56.6MB in the beginning and 960.5MB in the end (delta: 903.9MB). Free memory was 35.2MB in the beginning and 727.8MB in the end (delta: -692.6MB). Peak memory consumption was 213.1MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,126 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-27 21:55:39,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 386.42ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 35.8MB in the end (delta: -789.5kB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.81ms. Allocated memory is still 56.6MB. Free memory was 35.8MB in the beginning and 33.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,127 INFO L158 Benchmark]: Boogie Preprocessor took 42.11ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 31.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,127 INFO L158 Benchmark]: RCFGBuilder took 764.74ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.0MB in the beginning and 43.8MB in the end (delta: -12.8MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,128 INFO L158 Benchmark]: TraceAbstraction took 20838.80ms. Allocated memory was 69.2MB in the beginning and 960.5MB in the end (delta: 891.3MB). Free memory was 43.4MB in the beginning and 738.3MB in the end (delta: -694.9MB). Peak memory consumption was 628.2MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,128 INFO L158 Benchmark]: Witness Printer took 71.88ms. Allocated memory is still 960.5MB. Free memory was 738.3MB in the beginning and 727.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-27 21:55:39,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 38.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 386.42ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 35.8MB in the end (delta: -789.5kB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.81ms. Allocated memory is still 56.6MB. Free memory was 35.8MB in the beginning and 33.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.11ms. Allocated memory is still 56.6MB. Free memory was 32.9MB in the beginning and 31.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 764.74ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 31.0MB in the beginning and 43.8MB in the end (delta: -12.8MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 20838.80ms. Allocated memory was 69.2MB in the beginning and 960.5MB in the end (delta: 891.3MB). Free memory was 43.4MB in the beginning and 738.3MB in the end (delta: -694.9MB). Peak memory consumption was 628.2MB. Max. memory is 16.1GB. * Witness Printer took 71.88ms. Allocated memory is still 960.5MB. Free memory was 738.3MB in the beginning and 727.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 554]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 127 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.8s, OverallIterations: 26, TraceHistogramMax: 18, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2107 SdHoareTripleChecker+Valid, 2.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2107 mSDsluCounter, 8722 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3473 mSDsCounter, 562 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3061 IncrementalHoareTripleChecker+Invalid, 3623 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 562 mSolverCounterUnsat, 5249 mSDtfsCounter, 3061 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2978 GetRequests, 2932 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14417occurred in iteration=24, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 26 MinimizatonAttempts, 5774 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 22 PreInvPairs, 402 NumberOfFragments, 835 HoareAnnotationTreeSize, 22 FomulaSimplifications, 16222 FormulaSimplificationTreeSizeReduction, 2.9s HoareSimplificationTime, 22 FomulaSimplificationsInter, 13657 FormulaSimplificationTreeSizeReductionInter, 2.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 7041 NumberOfCodeBlocks, 7041 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 8115 ConstructedInterpolants, 0 QuantifiedInterpolants, 12004 SizeOfPredicates, 3 NumberOfNonLiveVariables, 3280 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 34 InterpolantComputations, 23 PerfectInterpolantSequences, 27797/27918 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: (((((2 == blastFlag && s__state <= 4560) && 4560 <= s__state) || ((s__state < 12292 && 4560 <= s__state) && blastFlag == 0)) || ((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state < 12292) && 4560 <= s__state) && blastFlag <= 4)) || (((s__hit == 0 && 2 == blastFlag) && s__state < 12292) && 4560 <= s__state)) || ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4560 <= s__state) - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 4560 <= s__state && blastFlag == 0 - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((4432 == s__state && s__hit == 0) && 256 == s__s3__tmp__new_cipher__algorithms) && blastFlag <= 4) || ((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && blastFlag <= 4) && 4432 < s__state)) || (4384 == s__state && blastFlag == 1)) || ((s__hit == 0 && 2 == blastFlag) && 3 == s__state)) || ((4432 == s__state && s__hit == 0) && 2 == blastFlag)) || ((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && 4528 == s__state)) || (2 == blastFlag && 4528 == s__state)) || ((2 == blastFlag && s__state <= 4560) && 4560 <= s__state)) || ((s__s3__tmp__next_state___0 <= 4560 && 256 == s__s3__tmp__new_cipher__algorithms) && 3 == s__state)) || (((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4560 <= s__state) && 4560 <= s__s3__tmp__next_state___0)) || (((3 == s__s3__tmp__next_state___0 && 2 == blastFlag) && s__state <= 4352) && 4352 <= s__state)) || ((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && 4480 == s__state)) || ((s__hit == 0 && 4512 == s__state) && 256 == s__s3__tmp__new_cipher__algorithms)) || ((s__s3__tmp__next_state___0 <= 4560 && 2 == blastFlag) && 3 == s__state)) || ((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && 4464 == s__state)) || ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && blastFlag <= 4) && 4400 == s__state)) || ((s__hit == 0 && 2 == blastFlag) && 4400 == s__state)) || (((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && 4416 == s__state) && blastFlag <= 4)) || (((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4352) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0)) || ((s__hit == 0 && 4496 == s__state) && 256 == s__s3__tmp__new_cipher__algorithms)) || (4512 == s__state && 2 == blastFlag)) || (((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && blastFlag <= 4) && 3 == s__state)) || (((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4432 < s__state)) || ((s__hit == 0 && 2 == blastFlag) && 4416 == s__state)) || (((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 2 == blastFlag) && s__state <= 4352) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0)) || blastFlag == 0 - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: blastFlag == 0 - InvariantResult [Line: 207]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: ((((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && blastFlag <= 4) && 4432 < s__state) || ((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4432 < s__state)) || ((s__state <= 4560 && blastFlag == 0) && 4432 < s__state)) || (((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4432 < s__state) - InvariantResult [Line: 150]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) || ((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4352 <= s__state) && blastFlag <= 4)) || (((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4352 <= s__state) - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4464 <= s__state) || (((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4464 <= s__state)) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 0) - InvariantResult [Line: 204]: Loop Invariant Derived loop invariant: (((((3 == s__s3__tmp__next_state___0 && 2 == blastFlag) && s__state <= 4352) && 4352 <= s__state) || ((s__state <= 4352 && 4352 <= s__state) && blastFlag == 0)) || (((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4352) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0)) || (((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 2 == blastFlag) && s__state <= 4352) && 4352 <= s__state) && 4560 <= s__s3__tmp__next_state___0) - InvariantResult [Line: 126]: Loop Invariant Derived loop invariant: (!(4400 <= s__state) && 4352 <= s__state) && blastFlag == 0 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 186]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4464 <= s__state) || ((2 == blastFlag && s__state <= 4560) && 4464 <= s__state)) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 0) - InvariantResult [Line: 174]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4464 <= s__state) || (((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4464 <= s__state)) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 0) - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: (((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0) || ((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4352 <= s__state) && blastFlag <= 4)) || (((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4352 <= s__state) - InvariantResult [Line: 192]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4464 <= s__state) || ((2 == blastFlag && s__state <= 4560) && 4464 <= s__state)) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 0) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((!(4400 <= s__state) && 4352 <= s__state) && blastFlag == 0) || ((!(4400 <= s__state) && blastFlag == 1) && 4352 <= s__state) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((((((s__hit == 0 && s__s3__tmp__next_state___0 <= 4560) && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4352 <= s__state) && blastFlag <= 4) || ((s__state <= 4560 && 4352 <= s__state) && blastFlag == 0)) || (((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4352 <= s__state) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 180]: Loop Invariant Derived loop invariant: ((((s__hit == 0 && 2 == blastFlag) && s__state <= 4560) && 4464 <= s__state) || (((s__hit == 0 && 256 == s__s3__tmp__new_cipher__algorithms) && s__state <= 4560) && 4464 <= s__state)) || ((s__state <= 4560 && 4464 <= s__state) && blastFlag == 0) RESULT: Ultimate proved your program to be correct! [2021-12-27 21:55:39,166 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE