./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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/bitvector/s3_clnt_2.BV.c.cil-1a.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 310063ef643a90e947dd66ba142cc8ae546f077a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/bitvector/s3_clnt_2.BV.c.cil-1a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 310063ef643a90e947dd66ba142cc8ae546f077a ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:21:12,332 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:21:12,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:21:12,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:21:12,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:21:12,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:21:12,385 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:21:12,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:21:12,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:21:12,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:21:12,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:21:12,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:21:12,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:21:12,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:21:12,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:21:12,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:21:12,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:21:12,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:21:12,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:21:12,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:21:12,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:21:12,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:21:12,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:21:12,418 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:21:12,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:21:12,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:21:12,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:21:12,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:21:12,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:21:12,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:21:12,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:21:12,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:21:12,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:21:12,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:21:12,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:21:12,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:21:12,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:21:12,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:21:12,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:21:12,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:21:12,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:21:12,440 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:21:12,470 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:21:12,471 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:21:12,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:21:12,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:21:12,472 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:21:12,472 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:21:12,473 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:21:12,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:21:12,473 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:21:12,473 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:21:12,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:21:12,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:21:12,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:21:12,474 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:21:12,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:21:12,475 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:21:12,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:21:12,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:21:12,476 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:21:12,476 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:21:12,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:21:12,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:21:12,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:21:12,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:21:12,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:21:12,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:21:12,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:21:12,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:21:12,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:21:12,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 310063ef643a90e947dd66ba142cc8ae546f077a [2020-10-19 22:21:12,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:21:12,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:21:12,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:21:12,700 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:21:12,701 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:21:12,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2020-10-19 22:21:12,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aab91505/cfad3fc9c4cc4839982ee0ba6b0abfaa/FLAG269c7c7ba [2020-10-19 22:21:13,285 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:21:13,286 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2020-10-19 22:21:13,298 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aab91505/cfad3fc9c4cc4839982ee0ba6b0abfaa/FLAG269c7c7ba [2020-10-19 22:21:13,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6aab91505/cfad3fc9c4cc4839982ee0ba6b0abfaa [2020-10-19 22:21:13,677 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:21:13,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:21:13,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:21:13,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:21:13,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:21:13,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:21:13" (1/1) ... [2020-10-19 22:21:13,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d540f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:13, skipping insertion in model container [2020-10-19 22:21:13,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:21:13" (1/1) ... [2020-10-19 22:21:13,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:21:13,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:21:13,989 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:21:14,001 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:21:14,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:21:14,118 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:21:14,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14 WrapperNode [2020-10-19 22:21:14,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:21:14,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:21:14,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:21:14,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:21:14,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:21:14,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:21:14,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:21:14,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:21:14,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... [2020-10-19 22:21:14,274 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:21:14,274 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:21:14,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:21:14,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:21:14,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:21:14,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:21:14,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:21:14,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:21:14,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:21:14,544 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:21:15,069 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-19 22:21:15,069 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-19 22:21:15,086 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:21:15,086 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:21:15,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:15 BoogieIcfgContainer [2020-10-19 22:21:15,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:21:15,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:21:15,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:21:15,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:21:15,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:21:13" (1/3) ... [2020-10-19 22:21:15,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490a3ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:21:15, skipping insertion in model container [2020-10-19 22:21:15,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:14" (2/3) ... [2020-10-19 22:21:15,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490a3ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:21:15, skipping insertion in model container [2020-10-19 22:21:15,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:15" (3/3) ... [2020-10-19 22:21:15,104 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2020-10-19 22:21:15,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:21:15,125 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:21:15,141 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:21:15,180 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:21:15,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:21:15,181 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:21:15,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:21:15,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:21:15,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:21:15,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:21:15,183 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:21:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2020-10-19 22:21:15,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 22:21:15,220 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:15,222 INFO L422 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] [2020-10-19 22:21:15,222 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:15,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:15,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2020-10-19 22:21:15,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:15,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479940940] [2020-10-19 22:21:15,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:15,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:15,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:15,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479940940] [2020-10-19 22:21:15,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:15,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:15,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938083297] [2020-10-19 22:21:15,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:15,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:15,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:15,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:15,588 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 3 states. [2020-10-19 22:21:15,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:15,791 INFO L93 Difference]: Finished difference Result 247 states and 422 transitions. [2020-10-19 22:21:15,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:15,793 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-19 22:21:15,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:15,806 INFO L225 Difference]: With dead ends: 247 [2020-10-19 22:21:15,806 INFO L226 Difference]: Without dead ends: 112 [2020-10-19 22:21:15,810 INFO L677 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 [2020-10-19 22:21:15,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-19 22:21:15,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-19 22:21:15,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-19 22:21:15,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2020-10-19 22:21:15,858 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2020-10-19 22:21:15,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:15,859 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2020-10-19 22:21:15,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:15,860 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2020-10-19 22:21:15,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-19 22:21:15,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:15,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:15,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:21:15,862 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:15,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:15,863 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2020-10-19 22:21:15,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:15,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529454889] [2020-10-19 22:21:15,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:15,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:15,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:15,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529454889] [2020-10-19 22:21:15,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:15,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:15,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923894029] [2020-10-19 22:21:15,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:15,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:15,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:15,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:15,988 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand 3 states. [2020-10-19 22:21:16,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:16,196 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-10-19 22:21:16,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:16,197 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-10-19 22:21:16,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:16,200 INFO L225 Difference]: With dead ends: 233 [2020-10-19 22:21:16,201 INFO L226 Difference]: Without dead ends: 131 [2020-10-19 22:21:16,202 INFO L677 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 [2020-10-19 22:21:16,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-19 22:21:16,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2020-10-19 22:21:16,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-19 22:21:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2020-10-19 22:21:16,228 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2020-10-19 22:21:16,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:16,229 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2020-10-19 22:21:16,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:16,229 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2020-10-19 22:21:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-19 22:21:16,232 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:16,232 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:16,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:21:16,233 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:16,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:16,234 INFO L82 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2020-10-19 22:21:16,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:16,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648724676] [2020-10-19 22:21:16,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:21:16,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648724676] [2020-10-19 22:21:16,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:16,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:16,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914839832] [2020-10-19 22:21:16,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:16,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:16,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:16,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:16,363 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand 3 states. [2020-10-19 22:21:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:16,506 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2020-10-19 22:21:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:16,507 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-10-19 22:21:16,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:16,509 INFO L225 Difference]: With dead ends: 265 [2020-10-19 22:21:16,509 INFO L226 Difference]: Without dead ends: 148 [2020-10-19 22:21:16,510 INFO L677 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 [2020-10-19 22:21:16,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-19 22:21:16,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2020-10-19 22:21:16,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-19 22:21:16,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2020-10-19 22:21:16,522 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2020-10-19 22:21:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:16,523 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2020-10-19 22:21:16,523 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2020-10-19 22:21:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-19 22:21:16,525 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:16,526 INFO L422 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] [2020-10-19 22:21:16,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:21:16,526 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:16,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:16,527 INFO L82 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2020-10-19 22:21:16,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:16,527 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034779775] [2020-10-19 22:21:16,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:16,640 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034779775] [2020-10-19 22:21:16,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:16,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:16,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125763944] [2020-10-19 22:21:16,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:16,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:16,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:16,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:16,642 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand 3 states. [2020-10-19 22:21:16,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:16,833 INFO L93 Difference]: Finished difference Result 328 states and 496 transitions. [2020-10-19 22:21:16,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:16,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-10-19 22:21:16,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:16,836 INFO L225 Difference]: With dead ends: 328 [2020-10-19 22:21:16,836 INFO L226 Difference]: Without dead ends: 193 [2020-10-19 22:21:16,837 INFO L677 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 [2020-10-19 22:21:16,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2020-10-19 22:21:16,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 185. [2020-10-19 22:21:16,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2020-10-19 22:21:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 261 transitions. [2020-10-19 22:21:16,849 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 261 transitions. Word has length 67 [2020-10-19 22:21:16,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:16,850 INFO L481 AbstractCegarLoop]: Abstraction has 185 states and 261 transitions. [2020-10-19 22:21:16,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 261 transitions. [2020-10-19 22:21:16,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-19 22:21:16,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:16,853 INFO L422 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] [2020-10-19 22:21:16,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:21:16,854 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:16,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:16,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1434615126, now seen corresponding path program 1 times [2020-10-19 22:21:16,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:16,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143445981] [2020-10-19 22:21:16,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:16,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:16,924 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:16,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143445981] [2020-10-19 22:21:16,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:16,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:16,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294574079] [2020-10-19 22:21:16,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:16,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:16,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:16,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:16,927 INFO L87 Difference]: Start difference. First operand 185 states and 261 transitions. Second operand 3 states. [2020-10-19 22:21:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:17,095 INFO L93 Difference]: Finished difference Result 383 states and 548 transitions. [2020-10-19 22:21:17,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:17,096 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-10-19 22:21:17,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:17,098 INFO L225 Difference]: With dead ends: 383 [2020-10-19 22:21:17,098 INFO L226 Difference]: Without dead ends: 208 [2020-10-19 22:21:17,099 INFO L677 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 [2020-10-19 22:21:17,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-10-19 22:21:17,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2020-10-19 22:21:17,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2020-10-19 22:21:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 285 transitions. [2020-10-19 22:21:17,110 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 285 transitions. Word has length 67 [2020-10-19 22:21:17,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:17,110 INFO L481 AbstractCegarLoop]: Abstraction has 204 states and 285 transitions. [2020-10-19 22:21:17,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 285 transitions. [2020-10-19 22:21:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-19 22:21:17,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:17,113 INFO L422 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] [2020-10-19 22:21:17,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:21:17,114 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:17,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:17,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1023824768, now seen corresponding path program 1 times [2020-10-19 22:21:17,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:17,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093830754] [2020-10-19 22:21:17,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:17,215 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:21:17,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093830754] [2020-10-19 22:21:17,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:17,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:17,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078791829] [2020-10-19 22:21:17,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:17,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:17,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:17,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:17,220 INFO L87 Difference]: Start difference. First operand 204 states and 285 transitions. Second operand 3 states. [2020-10-19 22:21:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:17,380 INFO L93 Difference]: Finished difference Result 422 states and 598 transitions. [2020-10-19 22:21:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:17,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2020-10-19 22:21:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:17,385 INFO L225 Difference]: With dead ends: 422 [2020-10-19 22:21:17,385 INFO L226 Difference]: Without dead ends: 228 [2020-10-19 22:21:17,387 INFO L677 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 [2020-10-19 22:21:17,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-10-19 22:21:17,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 225. [2020-10-19 22:21:17,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-10-19 22:21:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2020-10-19 22:21:17,403 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 311 transitions. Word has length 83 [2020-10-19 22:21:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:17,404 INFO L481 AbstractCegarLoop]: Abstraction has 225 states and 311 transitions. [2020-10-19 22:21:17,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 311 transitions. [2020-10-19 22:21:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-19 22:21:17,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:17,411 INFO L422 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] [2020-10-19 22:21:17,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-19 22:21:17,412 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:17,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:17,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2020-10-19 22:21:17,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:17,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132395709] [2020-10-19 22:21:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:17,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:17,529 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:21:17,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132395709] [2020-10-19 22:21:17,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:17,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:17,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949969738] [2020-10-19 22:21:17,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:17,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:17,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:17,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:17,532 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand 3 states. [2020-10-19 22:21:17,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:17,571 INFO L93 Difference]: Finished difference Result 652 states and 903 transitions. [2020-10-19 22:21:17,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:17,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-19 22:21:17,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:17,575 INFO L225 Difference]: With dead ends: 652 [2020-10-19 22:21:17,575 INFO L226 Difference]: Without dead ends: 437 [2020-10-19 22:21:17,576 INFO L677 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 [2020-10-19 22:21:17,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-10-19 22:21:17,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-10-19 22:21:17,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-10-19 22:21:17,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 600 transitions. [2020-10-19 22:21:17,591 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 600 transitions. Word has length 103 [2020-10-19 22:21:17,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:17,592 INFO L481 AbstractCegarLoop]: Abstraction has 437 states and 600 transitions. [2020-10-19 22:21:17,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 600 transitions. [2020-10-19 22:21:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-19 22:21:17,594 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:17,594 INFO L422 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] [2020-10-19 22:21:17,595 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-19 22:21:17,595 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:17,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:17,596 INFO L82 PathProgramCache]: Analyzing trace with hash -713589126, now seen corresponding path program 1 times [2020-10-19 22:21:17,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:17,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48614358] [2020-10-19 22:21:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:17,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:17,660 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 22:21:17,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48614358] [2020-10-19 22:21:17,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:17,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:17,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114454440] [2020-10-19 22:21:17,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:17,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:17,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:17,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:17,663 INFO L87 Difference]: Start difference. First operand 437 states and 600 transitions. Second operand 3 states. [2020-10-19 22:21:17,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:17,695 INFO L93 Difference]: Finished difference Result 885 states and 1214 transitions. [2020-10-19 22:21:17,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:17,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-19 22:21:17,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:17,700 INFO L225 Difference]: With dead ends: 885 [2020-10-19 22:21:17,700 INFO L226 Difference]: Without dead ends: 458 [2020-10-19 22:21:17,702 INFO L677 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 [2020-10-19 22:21:17,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2020-10-19 22:21:17,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2020-10-19 22:21:17,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 458 states. [2020-10-19 22:21:17,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 627 transitions. [2020-10-19 22:21:17,716 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 627 transitions. Word has length 103 [2020-10-19 22:21:17,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:17,717 INFO L481 AbstractCegarLoop]: Abstraction has 458 states and 627 transitions. [2020-10-19 22:21:17,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:17,717 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 627 transitions. [2020-10-19 22:21:17,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 22:21:17,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:17,719 INFO L422 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] [2020-10-19 22:21:17,719 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-19 22:21:17,719 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:17,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:17,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1034569449, now seen corresponding path program 1 times [2020-10-19 22:21:17,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:17,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691347121] [2020-10-19 22:21:17,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:17,765 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-19 22:21:17,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691347121] [2020-10-19 22:21:17,766 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:17,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:17,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443461258] [2020-10-19 22:21:17,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:17,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:17,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:17,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:17,769 INFO L87 Difference]: Start difference. First operand 458 states and 627 transitions. Second operand 3 states. [2020-10-19 22:21:17,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:17,818 INFO L93 Difference]: Finished difference Result 932 states and 1274 transitions. [2020-10-19 22:21:17,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:17,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 22:21:17,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:17,821 INFO L225 Difference]: With dead ends: 932 [2020-10-19 22:21:17,821 INFO L226 Difference]: Without dead ends: 484 [2020-10-19 22:21:17,822 INFO L677 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 [2020-10-19 22:21:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484 states. [2020-10-19 22:21:17,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484 to 484. [2020-10-19 22:21:17,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2020-10-19 22:21:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 660 transitions. [2020-10-19 22:21:17,835 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 660 transitions. Word has length 104 [2020-10-19 22:21:17,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:17,836 INFO L481 AbstractCegarLoop]: Abstraction has 484 states and 660 transitions. [2020-10-19 22:21:17,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 660 transitions. [2020-10-19 22:21:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 22:21:17,838 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:17,838 INFO L422 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] [2020-10-19 22:21:17,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-19 22:21:17,839 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2020-10-19 22:21:17,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:17,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266535801] [2020-10-19 22:21:17,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:17,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:17,890 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:21:17,891 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266535801] [2020-10-19 22:21:17,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:17,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:17,892 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328164774] [2020-10-19 22:21:17,892 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:17,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:17,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:17,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:17,893 INFO L87 Difference]: Start difference. First operand 484 states and 660 transitions. Second operand 3 states. [2020-10-19 22:21:17,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:17,936 INFO L93 Difference]: Finished difference Result 699 states and 957 transitions. [2020-10-19 22:21:17,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:17,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-10-19 22:21:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:17,941 INFO L225 Difference]: With dead ends: 699 [2020-10-19 22:21:17,941 INFO L226 Difference]: Without dead ends: 697 [2020-10-19 22:21:17,942 INFO L677 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 [2020-10-19 22:21:17,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2020-10-19 22:21:17,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 697. [2020-10-19 22:21:17,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-10-19 22:21:17,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 955 transitions. [2020-10-19 22:21:17,974 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 955 transitions. Word has length 105 [2020-10-19 22:21:17,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:17,975 INFO L481 AbstractCegarLoop]: Abstraction has 697 states and 955 transitions. [2020-10-19 22:21:17,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:17,975 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 955 transitions. [2020-10-19 22:21:17,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-19 22:21:17,979 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:17,979 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:17,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-19 22:21:17,980 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:17,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:17,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2020-10-19 22:21:17,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:17,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379861798] [2020-10-19 22:21:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:18,069 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-19 22:21:18,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379861798] [2020-10-19 22:21:18,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:18,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:18,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32671170] [2020-10-19 22:21:18,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:18,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:18,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:18,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:18,072 INFO L87 Difference]: Start difference. First operand 697 states and 955 transitions. Second operand 3 states. [2020-10-19 22:21:18,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:18,248 INFO L93 Difference]: Finished difference Result 1508 states and 2127 transitions. [2020-10-19 22:21:18,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:18,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-10-19 22:21:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:18,253 INFO L225 Difference]: With dead ends: 1508 [2020-10-19 22:21:18,253 INFO L226 Difference]: Without dead ends: 844 [2020-10-19 22:21:18,255 INFO L677 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 [2020-10-19 22:21:18,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 844 states. [2020-10-19 22:21:18,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 844 to 814. [2020-10-19 22:21:18,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 814 states. [2020-10-19 22:21:18,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 814 states to 814 states and 1144 transitions. [2020-10-19 22:21:18,283 INFO L78 Accepts]: Start accepts. Automaton has 814 states and 1144 transitions. Word has length 173 [2020-10-19 22:21:18,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:18,284 INFO L481 AbstractCegarLoop]: Abstraction has 814 states and 1144 transitions. [2020-10-19 22:21:18,284 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 814 states and 1144 transitions. [2020-10-19 22:21:18,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-19 22:21:18,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:18,288 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:18,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-19 22:21:18,288 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:18,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:18,289 INFO L82 PathProgramCache]: Analyzing trace with hash -598161639, now seen corresponding path program 2 times [2020-10-19 22:21:18,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:18,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245339637] [2020-10-19 22:21:18,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2020-10-19 22:21:18,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245339637] [2020-10-19 22:21:18,359 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:18,359 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:18,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937349809] [2020-10-19 22:21:18,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:18,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:18,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:18,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:18,361 INFO L87 Difference]: Start difference. First operand 814 states and 1144 transitions. Second operand 3 states. [2020-10-19 22:21:18,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:18,577 INFO L93 Difference]: Finished difference Result 1870 states and 2708 transitions. [2020-10-19 22:21:18,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:18,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-10-19 22:21:18,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:18,586 INFO L225 Difference]: With dead ends: 1870 [2020-10-19 22:21:18,587 INFO L226 Difference]: Without dead ends: 1041 [2020-10-19 22:21:18,589 INFO L677 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 [2020-10-19 22:21:18,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2020-10-19 22:21:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1003. [2020-10-19 22:21:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-10-19 22:21:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1396 transitions. [2020-10-19 22:21:18,631 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1396 transitions. Word has length 185 [2020-10-19 22:21:18,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:18,632 INFO L481 AbstractCegarLoop]: Abstraction has 1003 states and 1396 transitions. [2020-10-19 22:21:18,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:18,633 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1396 transitions. [2020-10-19 22:21:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-19 22:21:18,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:18,639 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:18,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-19 22:21:18,640 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:18,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:18,641 INFO L82 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2020-10-19 22:21:18,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:18,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665335862] [2020-10-19 22:21:18,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:18,881 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2020-10-19 22:21:18,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665335862] [2020-10-19 22:21:18,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:18,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:18,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763943641] [2020-10-19 22:21:18,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:18,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:18,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:18,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:18,886 INFO L87 Difference]: Start difference. First operand 1003 states and 1396 transitions. Second operand 3 states. [2020-10-19 22:21:18,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:18,943 INFO L93 Difference]: Finished difference Result 2282 states and 3180 transitions. [2020-10-19 22:21:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:18,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2020-10-19 22:21:18,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:18,954 INFO L225 Difference]: With dead ends: 2282 [2020-10-19 22:21:18,955 INFO L226 Difference]: Without dead ends: 1315 [2020-10-19 22:21:18,957 INFO L677 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 [2020-10-19 22:21:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2020-10-19 22:21:19,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1315. [2020-10-19 22:21:19,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1315 states. [2020-10-19 22:21:19,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1315 states to 1315 states and 1828 transitions. [2020-10-19 22:21:19,011 INFO L78 Accepts]: Start accepts. Automaton has 1315 states and 1828 transitions. Word has length 194 [2020-10-19 22:21:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:19,012 INFO L481 AbstractCegarLoop]: Abstraction has 1315 states and 1828 transitions. [2020-10-19 22:21:19,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1315 states and 1828 transitions. [2020-10-19 22:21:19,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-19 22:21:19,018 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:19,019 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 4, 4, 3, 3, 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] [2020-10-19 22:21:19,019 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-19 22:21:19,020 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:19,021 INFO L82 PathProgramCache]: Analyzing trace with hash -915330113, now seen corresponding path program 1 times [2020-10-19 22:21:19,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:19,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444039650] [2020-10-19 22:21:19,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:19,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 478 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2020-10-19 22:21:19,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444039650] [2020-10-19 22:21:19,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:19,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:21:19,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229014859] [2020-10-19 22:21:19,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:19,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:21:19,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:19,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:19,186 INFO L87 Difference]: Start difference. First operand 1315 states and 1828 transitions. Second operand 3 states. [2020-10-19 22:21:19,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:19,257 INFO L93 Difference]: Finished difference Result 3583 states and 5032 transitions. [2020-10-19 22:21:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:19,258 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 196 [2020-10-19 22:21:19,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:19,271 INFO L225 Difference]: With dead ends: 3583 [2020-10-19 22:21:19,271 INFO L226 Difference]: Without dead ends: 2325 [2020-10-19 22:21:19,274 INFO L677 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 [2020-10-19 22:21:19,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2325 states. [2020-10-19 22:21:19,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2325 to 2323. [2020-10-19 22:21:19,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2323 states. [2020-10-19 22:21:19,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3265 transitions. [2020-10-19 22:21:19,370 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3265 transitions. Word has length 196 [2020-10-19 22:21:19,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:19,371 INFO L481 AbstractCegarLoop]: Abstraction has 2323 states and 3265 transitions. [2020-10-19 22:21:19,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3265 transitions. [2020-10-19 22:21:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-19 22:21:19,376 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:19,376 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:19,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-19 22:21:19,377 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:19,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:19,377 INFO L82 PathProgramCache]: Analyzing trace with hash 342847369, now seen corresponding path program 1 times [2020-10-19 22:21:19,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:21:19,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230540669] [2020-10-19 22:21:19,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:21:19,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:21:19,436 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:21:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:21:19,483 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:21:19,602 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:21:19,603 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:21:19,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-19 22:21:19,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:21:19 BoogieIcfgContainer [2020-10-19 22:21:19,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:21:19,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:21:19,950 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:21:19,951 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:21:19,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:15" (3/4) ... [2020-10-19 22:21:19,955 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 22:21:19,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:21:19,958 INFO L168 Benchmark]: Toolchain (without parser) took 6278.92 ms. Allocated memory was 41.9 MB in the beginning and 104.3 MB in the end (delta: 62.4 MB). Free memory was 22.1 MB in the beginning and 77.5 MB in the end (delta: -55.4 MB). Peak memory consumption was 7.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,959 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 32.0 MB. Free memory was 11.0 MB in the beginning and 11.0 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.48 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.2 MB in the beginning and 17.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,968 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.17 ms. Allocated memory is still 42.5 MB. Free memory was 17.7 MB in the beginning and 14.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,973 INFO L168 Benchmark]: Boogie Preprocessor took 70.12 ms. Allocated memory is still 42.5 MB. Free memory was 14.8 MB in the beginning and 12.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,973 INFO L168 Benchmark]: RCFGBuilder took 817.37 ms. Allocated memory was 42.5 MB in the beginning and 47.2 MB in the end (delta: 4.7 MB). Free memory was 12.5 MB in the beginning and 20.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,975 INFO L168 Benchmark]: TraceAbstraction took 4855.54 ms. Allocated memory was 47.2 MB in the beginning and 104.3 MB in the end (delta: 57.1 MB). Free memory was 20.2 MB in the beginning and 77.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 69.4 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:19,976 INFO L168 Benchmark]: Witness Printer took 5.29 ms. Allocated memory is still 104.3 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-19 22:21:19,981 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 32.0 MB. Free memory was 11.0 MB in the beginning and 11.0 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 435.48 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 21.2 MB in the beginning and 17.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 83.17 ms. Allocated memory is still 42.5 MB. Free memory was 17.7 MB in the beginning and 14.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 70.12 ms. Allocated memory is still 42.5 MB. Free memory was 14.8 MB in the beginning and 12.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 817.37 ms. Allocated memory was 42.5 MB in the beginning and 47.2 MB in the end (delta: 4.7 MB). Free memory was 12.5 MB in the beginning and 20.9 MB in the end (delta: -8.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 4855.54 ms. Allocated memory was 47.2 MB in the beginning and 104.3 MB in the end (delta: 57.1 MB). Free memory was 20.2 MB in the beginning and 77.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 69.4 MB. Max. memory is 14.3 GB. * Witness Printer took 5.29 ms. Allocated memory is still 104.3 MB. Free memory is still 77.5 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseXor at line 358. Possible FailurePath: [L619] int __retres1 ; [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate = __VERIFIER_nondet_uint(); [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int __retres59 ; [L68] s__state = 12292 [L69] blastFlag = 0 [L70] tmp = __VERIFIER_nondet_int() [L71] cb = 0 [L72] ret = -1 [L73] skip = 0 [L74] tmp___0 = 0 [L75] COND TRUE s__info_callback != 0 [L76] cb = s__info_callback [L84] s__in_handshake = s__in_handshake + 1 [L85] COND FALSE !(tmp___1 - 12288) [L95] COND TRUE 1 [L97] state = s__state [L98] COND TRUE s__state == 12292 [L201] s__new_session = 1 [L202] s__state = 4096 [L203] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L208] s__server = 0 [L209] COND TRUE cb != 0 [L214] COND FALSE !(s__version - 65280 != 768) [L220] s__type = 4096 [L221] COND FALSE !(s__init_buf___0 == 0) [L239] COND FALSE !(! tmp___4) [L245] COND FALSE !(! tmp___5) [L251] s__state = 4368 [L252] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L253] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND TRUE blastFlag == 0 [L260] blastFlag = 1 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND TRUE blastFlag == 1 [L285] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND TRUE blastFlag == 2 [L308] blastFlag = 3 [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND TRUE blastFlag == 3 [L326] blastFlag = 4 [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND FALSE !(blastFlag == 5) [L353] COND FALSE !(ret <= 0) [L358] s__state = ag_X ^ ag_Y [L359] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND TRUE s__state == 4368 [L257] s__shutdown = 0 [L258] ret = __VERIFIER_nondet_int() [L259] COND FALSE !(blastFlag == 0) [L262] COND TRUE blastFlag == 4 [L263] blastFlag = 5 [L268] COND FALSE !(ret <= 0) [L273] s__state = 4384 [L274] s__init_num = 0 [L275] COND TRUE s__bbio != s__wbio [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND TRUE s__state == 4384 [L283] ret = __VERIFIER_nondet_int() [L284] COND FALSE !(blastFlag == 1) [L289] COND FALSE !(ret <= 0) [L294] COND FALSE !(\read(s__hit)) [L297] s__state = 4400 [L299] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND TRUE s__state == 4400 [L303] COND FALSE !((unsigned long )s__s3__tmp__new_cipher__algorithms - 256UL) [L306] ret = __VERIFIER_nondet_int() [L307] COND FALSE !(blastFlag == 2) [L312] COND FALSE !(ret <= 0) [L318] ag_Y = 61087 [L319] s__state = 4416 [L320] s__init_num = 0 [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND TRUE s__state == 4416 [L324] ret = __VERIFIER_nondet_int() [L325] COND FALSE !(blastFlag == 3) [L330] COND FALSE !(ret <= 0) [L335] s__state = 4432 [L336] ag_X = (unsigned short)65535 [L337] s__init_num = 0 [L338] COND FALSE !(! tmp___6) [L568] COND FALSE !(! s__s3__tmp__reuse_message) [L597] skip = 0 [L95] COND TRUE 1 [L97] state = s__state [L98] COND FALSE !(s__state == 12292) [L101] COND FALSE !(s__state == 16384) [L104] COND FALSE !(s__state == 4096) [L107] COND FALSE !(s__state == 20480) [L110] COND FALSE !(s__state == 4099) [L113] COND FALSE !(s__state == 4368) [L116] COND FALSE !(s__state == 4369) [L119] COND FALSE !(s__state == 4384) [L122] COND FALSE !(s__state == 4385) [L125] COND FALSE !(s__state == 4400) [L128] COND FALSE !(s__state == 4401) [L131] COND FALSE !(s__state == 4416) [L134] COND FALSE !(s__state == 4417) [L137] COND TRUE s__state == 4432 [L347] ret = __VERIFIER_nondet_int() [L348] COND TRUE blastFlag == 5 [L3] __assert_fail("0", "s3_clnt_2.BV.c.cil-1a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.4s, OverallIterations: 15, TraceHistogramMax: 11, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2634 SDtfs, 812 SDslu, 1502 SDs, 0 SdLazy, 896 SolverSat, 173 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2323occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 93 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1686 NumberOfCodeBlocks, 1686 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1476 ConstructedInterpolants, 0 QuantifiedInterpolants, 447550 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 2791/2791 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:21:22,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:21:22,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:21:22,177 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:21:22,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:21:22,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:21:22,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:21:22,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:21:22,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:21:22,192 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:21:22,194 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:21:22,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:21:22,195 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:21:22,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:21:22,198 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:21:22,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:21:22,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:21:22,201 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:21:22,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:21:22,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:21:22,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:21:22,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:21:22,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:21:22,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:21:22,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:21:22,212 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:21:22,212 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:21:22,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:21:22,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:21:22,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:21:22,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:21:22,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:21:22,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:21:22,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:21:22,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:21:22,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:21:22,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:21:22,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:21:22,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:21:22,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:21:22,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:21:22,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-19 22:21:22,247 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:21:22,247 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:21:22,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:21:22,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:21:22,249 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:21:22,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:21:22,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:21:22,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:21:22,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:21:22,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:21:22,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:21:22,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:21:22,251 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-19 22:21:22,251 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-19 22:21:22,251 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:21:22,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:21:22,252 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:21:22,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:21:22,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:21:22,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:21:22,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:21:22,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:21:22,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:21:22,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:21:22,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:21:22,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:21:22,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-19 22:21:22,255 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-19 22:21:22,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:21:22,255 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:21:22,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-19 22:21:22,256 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> 310063ef643a90e947dd66ba142cc8ae546f077a [2020-10-19 22:21:22,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:21:22,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:21:22,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:21:22,517 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:21:22,517 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:21:22,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2020-10-19 22:21:22,577 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243191690/02a04edb00434897893377baf35d51e8/FLAG1f1dab432 [2020-10-19 22:21:23,033 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:21:23,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_2.BV.c.cil-1a.c [2020-10-19 22:21:23,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243191690/02a04edb00434897893377baf35d51e8/FLAG1f1dab432 [2020-10-19 22:21:23,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/243191690/02a04edb00434897893377baf35d51e8 [2020-10-19 22:21:23,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:21:23,438 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:21:23,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:21:23,440 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:21:23,443 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:21:23,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:23,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a3836e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23, skipping insertion in model container [2020-10-19 22:21:23,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:23,458 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:21:23,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:21:23,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:21:23,847 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:21:23,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:21:23,950 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:21:23,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23 WrapperNode [2020-10-19 22:21:23,951 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:21:23,952 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:21:23,952 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:21:23,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:21:23,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:23,973 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:21:24,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:21:24,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:21:24,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:21:24,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... [2020-10-19 22:21:24,087 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:21:24,088 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:21:24,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:21:24,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:21:24,091 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-19 22:21:24,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:21:24,150 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:21:24,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:21:24,283 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-19 22:21:24,862 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##85: assume !false; [2020-10-19 22:21:24,863 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##84: assume false; [2020-10-19 22:21:24,876 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:21:24,877 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-19 22:21:24,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:24 BoogieIcfgContainer [2020-10-19 22:21:24,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:21:24,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:21:24,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:21:24,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:21:24,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:21:23" (1/3) ... [2020-10-19 22:21:24,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22784982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:21:24, skipping insertion in model container [2020-10-19 22:21:24,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:21:23" (2/3) ... [2020-10-19 22:21:24,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22784982 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:21:24, skipping insertion in model container [2020-10-19 22:21:24,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:24" (3/3) ... [2020-10-19 22:21:24,889 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_2.BV.c.cil-1a.c [2020-10-19 22:21:24,904 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:21:24,924 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:21:24,938 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:21:24,962 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:21:24,962 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:21:24,963 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:21:24,963 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:21:24,963 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:21:24,963 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:21:24,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:21:24,964 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:21:24,981 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2020-10-19 22:21:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-19 22:21:24,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:24,990 INFO L422 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] [2020-10-19 22:21:24,991 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:24,998 INFO L82 PathProgramCache]: Analyzing trace with hash -1457697026, now seen corresponding path program 1 times [2020-10-19 22:21:25,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:25,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [974342005] [2020-10-19 22:21:25,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:25,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:25,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:25,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:25,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:25,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [974342005] [2020-10-19 22:21:25,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:25,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:25,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623034683] [2020-10-19 22:21:25,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:25,288 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:25,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:25,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,305 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 3 states. [2020-10-19 22:21:25,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:25,609 INFO L93 Difference]: Finished difference Result 247 states and 422 transitions. [2020-10-19 22:21:25,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:25,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-19 22:21:25,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:25,628 INFO L225 Difference]: With dead ends: 247 [2020-10-19 22:21:25,629 INFO L226 Difference]: Without dead ends: 112 [2020-10-19 22:21:25,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:25,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-10-19 22:21:25,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-10-19 22:21:25,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-19 22:21:25,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 169 transitions. [2020-10-19 22:21:25,721 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 169 transitions. Word has length 24 [2020-10-19 22:21:25,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:25,722 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 169 transitions. [2020-10-19 22:21:25,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 169 transitions. [2020-10-19 22:21:25,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-19 22:21:25,725 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:25,725 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:25,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-19 22:21:25,936 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:25,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:25,936 INFO L82 PathProgramCache]: Analyzing trace with hash -611475394, now seen corresponding path program 1 times [2020-10-19 22:21:25,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:25,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72687] [2020-10-19 22:21:25,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:26,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:26,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:26,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:26,089 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:26,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:21:26,102 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72687] [2020-10-19 22:21:26,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:26,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:26,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089601401] [2020-10-19 22:21:26,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:26,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:26,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:26,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:26,116 INFO L87 Difference]: Start difference. First operand 112 states and 169 transitions. Second operand 3 states. [2020-10-19 22:21:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:26,356 INFO L93 Difference]: Finished difference Result 233 states and 356 transitions. [2020-10-19 22:21:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:26,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2020-10-19 22:21:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:26,361 INFO L225 Difference]: With dead ends: 233 [2020-10-19 22:21:26,361 INFO L226 Difference]: Without dead ends: 131 [2020-10-19 22:21:26,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:26,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-19 22:21:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 127. [2020-10-19 22:21:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-19 22:21:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 189 transitions. [2020-10-19 22:21:26,376 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 189 transitions. Word has length 36 [2020-10-19 22:21:26,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:26,376 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 189 transitions. [2020-10-19 22:21:26,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:26,377 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 189 transitions. [2020-10-19 22:21:26,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-10-19 22:21:26,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:26,379 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:26,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-19 22:21:26,592 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:26,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:26,592 INFO L82 PathProgramCache]: Analyzing trace with hash 213639527, now seen corresponding path program 1 times [2020-10-19 22:21:26,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:26,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589115411] [2020-10-19 22:21:26,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:26,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:26,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:21:26,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-19 22:21:26,722 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589115411] [2020-10-19 22:21:26,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:26,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:26,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773165514] [2020-10-19 22:21:26,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:26,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:26,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:26,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:26,728 INFO L87 Difference]: Start difference. First operand 127 states and 189 transitions. Second operand 3 states. [2020-10-19 22:21:26,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:26,917 INFO L93 Difference]: Finished difference Result 265 states and 400 transitions. [2020-10-19 22:21:26,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:26,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-10-19 22:21:26,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:26,919 INFO L225 Difference]: With dead ends: 265 [2020-10-19 22:21:26,919 INFO L226 Difference]: Without dead ends: 148 [2020-10-19 22:21:26,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:26,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-19 22:21:26,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 144. [2020-10-19 22:21:26,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-19 22:21:26,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 211 transitions. [2020-10-19 22:21:26,932 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 211 transitions. Word has length 50 [2020-10-19 22:21:26,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:26,933 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 211 transitions. [2020-10-19 22:21:26,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:26,933 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 211 transitions. [2020-10-19 22:21:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-19 22:21:26,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:26,936 INFO L422 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] [2020-10-19 22:21:27,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-19 22:21:27,149 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:27,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:27,149 INFO L82 PathProgramCache]: Analyzing trace with hash 370823208, now seen corresponding path program 1 times [2020-10-19 22:21:27,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:27,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [461137787] [2020-10-19 22:21:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:27,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:27,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:27,270 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:27,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:27,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [461137787] [2020-10-19 22:21:27,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:27,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:27,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136695839] [2020-10-19 22:21:27,310 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:27,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:27,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:27,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:27,312 INFO L87 Difference]: Start difference. First operand 144 states and 211 transitions. Second operand 4 states. [2020-10-19 22:21:27,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:27,607 INFO L93 Difference]: Finished difference Result 349 states and 534 transitions. [2020-10-19 22:21:27,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:27,607 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2020-10-19 22:21:27,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:27,609 INFO L225 Difference]: With dead ends: 349 [2020-10-19 22:21:27,610 INFO L226 Difference]: Without dead ends: 215 [2020-10-19 22:21:27,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:27,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2020-10-19 22:21:27,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 207. [2020-10-19 22:21:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-10-19 22:21:27,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 297 transitions. [2020-10-19 22:21:27,626 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 297 transitions. Word has length 67 [2020-10-19 22:21:27,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:27,627 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 297 transitions. [2020-10-19 22:21:27,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:27,627 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 297 transitions. [2020-10-19 22:21:27,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-10-19 22:21:27,629 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:27,630 INFO L422 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] [2020-10-19 22:21:27,850 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-19 22:21:27,850 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:27,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:27,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1528022105, now seen corresponding path program 1 times [2020-10-19 22:21:27,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:27,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1169874436] [2020-10-19 22:21:27,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:27,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:27,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:27,972 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:27,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-19 22:21:27,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1169874436] [2020-10-19 22:21:27,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:27,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:27,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638771183] [2020-10-19 22:21:27,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:27,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:27,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:27,988 INFO L87 Difference]: Start difference. First operand 207 states and 297 transitions. Second operand 3 states. [2020-10-19 22:21:28,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:28,170 INFO L93 Difference]: Finished difference Result 427 states and 620 transitions. [2020-10-19 22:21:28,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:28,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-10-19 22:21:28,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:28,173 INFO L225 Difference]: With dead ends: 427 [2020-10-19 22:21:28,173 INFO L226 Difference]: Without dead ends: 230 [2020-10-19 22:21:28,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:28,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2020-10-19 22:21:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2020-10-19 22:21:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-19 22:21:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 321 transitions. [2020-10-19 22:21:28,196 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 321 transitions. Word has length 68 [2020-10-19 22:21:28,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:28,196 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 321 transitions. [2020-10-19 22:21:28,196 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:28,197 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 321 transitions. [2020-10-19 22:21:28,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-19 22:21:28,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:28,199 INFO L422 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] [2020-10-19 22:21:28,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-19 22:21:28,412 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:28,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:28,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1678422895, now seen corresponding path program 1 times [2020-10-19 22:21:28,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:28,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1939878872] [2020-10-19 22:21:28,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:28,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:28,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:28,560 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:21:28,561 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:28,571 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-10-19 22:21:28,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1939878872] [2020-10-19 22:21:28,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:28,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:28,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62684811] [2020-10-19 22:21:28,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:28,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:28,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:28,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:28,574 INFO L87 Difference]: Start difference. First operand 226 states and 321 transitions. Second operand 3 states. [2020-10-19 22:21:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:28,741 INFO L93 Difference]: Finished difference Result 466 states and 670 transitions. [2020-10-19 22:21:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:28,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-10-19 22:21:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:28,744 INFO L225 Difference]: With dead ends: 466 [2020-10-19 22:21:28,744 INFO L226 Difference]: Without dead ends: 250 [2020-10-19 22:21:28,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:28,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-19 22:21:28,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 247. [2020-10-19 22:21:28,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-10-19 22:21:28,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 347 transitions. [2020-10-19 22:21:28,778 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 347 transitions. Word has length 84 [2020-10-19 22:21:28,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:28,779 INFO L481 AbstractCegarLoop]: Abstraction has 247 states and 347 transitions. [2020-10-19 22:21:28,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:28,780 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 347 transitions. [2020-10-19 22:21:28,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-19 22:21:28,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:28,782 INFO L422 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] [2020-10-19 22:21:28,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-19 22:21:28,996 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:28,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:28,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1619803512, now seen corresponding path program 1 times [2020-10-19 22:21:28,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:28,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1660611670] [2020-10-19 22:21:29,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:29,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:29,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:29,122 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:21:29,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-19 22:21:29,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1660611670] [2020-10-19 22:21:29,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:29,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:29,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12508693] [2020-10-19 22:21:29,166 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:29,166 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:29,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:29,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:29,167 INFO L87 Difference]: Start difference. First operand 247 states and 347 transitions. Second operand 4 states. [2020-10-19 22:21:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:29,229 INFO L93 Difference]: Finished difference Result 743 states and 1042 transitions. [2020-10-19 22:21:29,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:29,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2020-10-19 22:21:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:29,234 INFO L225 Difference]: With dead ends: 743 [2020-10-19 22:21:29,234 INFO L226 Difference]: Without dead ends: 506 [2020-10-19 22:21:29,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:29,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-10-19 22:21:29,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2020-10-19 22:21:29,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 506 states. [2020-10-19 22:21:29,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 702 transitions. [2020-10-19 22:21:29,257 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 702 transitions. Word has length 103 [2020-10-19 22:21:29,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:29,257 INFO L481 AbstractCegarLoop]: Abstraction has 506 states and 702 transitions. [2020-10-19 22:21:29,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:29,258 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 702 transitions. [2020-10-19 22:21:29,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-19 22:21:29,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:29,260 INFO L422 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] [2020-10-19 22:21:29,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-19 22:21:29,474 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:29,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:29,474 INFO L82 PathProgramCache]: Analyzing trace with hash -847602632, now seen corresponding path program 1 times [2020-10-19 22:21:29,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:29,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [505156473] [2020-10-19 22:21:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:29,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:29,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:29,589 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 22:21:29,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:29,605 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-10-19 22:21:29,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [505156473] [2020-10-19 22:21:29,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:29,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:29,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935457728] [2020-10-19 22:21:29,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:29,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:29,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:29,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:29,608 INFO L87 Difference]: Start difference. First operand 506 states and 702 transitions. Second operand 3 states. [2020-10-19 22:21:29,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:29,654 INFO L93 Difference]: Finished difference Result 1023 states and 1418 transitions. [2020-10-19 22:21:29,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:29,655 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-10-19 22:21:29,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:29,663 INFO L225 Difference]: With dead ends: 1023 [2020-10-19 22:21:29,663 INFO L226 Difference]: Without dead ends: 527 [2020-10-19 22:21:29,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:29,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2020-10-19 22:21:29,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 527. [2020-10-19 22:21:29,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-10-19 22:21:29,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 729 transitions. [2020-10-19 22:21:29,689 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 729 transitions. Word has length 103 [2020-10-19 22:21:29,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:29,689 INFO L481 AbstractCegarLoop]: Abstraction has 527 states and 729 transitions. [2020-10-19 22:21:29,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:29,690 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 729 transitions. [2020-10-19 22:21:29,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-19 22:21:29,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:29,692 INFO L422 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] [2020-10-19 22:21:29,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-19 22:21:29,906 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:29,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1168582955, now seen corresponding path program 1 times [2020-10-19 22:21:29,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:29,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2085637281] [2020-10-19 22:21:29,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:30,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:30,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:30,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-19 22:21:30,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:30,099 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-19 22:21:30,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2085637281] [2020-10-19 22:21:30,101 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:30,101 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:30,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747019440] [2020-10-19 22:21:30,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:30,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:30,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:30,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:30,104 INFO L87 Difference]: Start difference. First operand 527 states and 729 transitions. Second operand 3 states. [2020-10-19 22:21:30,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:30,158 INFO L93 Difference]: Finished difference Result 1070 states and 1478 transitions. [2020-10-19 22:21:30,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:30,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-10-19 22:21:30,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:30,162 INFO L225 Difference]: With dead ends: 1070 [2020-10-19 22:21:30,163 INFO L226 Difference]: Without dead ends: 553 [2020-10-19 22:21:30,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:30,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2020-10-19 22:21:30,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2020-10-19 22:21:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 553 states. [2020-10-19 22:21:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 762 transitions. [2020-10-19 22:21:30,190 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 762 transitions. Word has length 104 [2020-10-19 22:21:30,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:30,191 INFO L481 AbstractCegarLoop]: Abstraction has 553 states and 762 transitions. [2020-10-19 22:21:30,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:30,192 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 762 transitions. [2020-10-19 22:21:30,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-19 22:21:30,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:30,194 INFO L422 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] [2020-10-19 22:21:30,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-10-19 22:21:30,408 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:30,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:30,409 INFO L82 PathProgramCache]: Analyzing trace with hash -53319870, now seen corresponding path program 1 times [2020-10-19 22:21:30,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:30,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [608993314] [2020-10-19 22:21:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:30,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:30,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:30,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:30,509 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:21:30,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:30,531 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-19 22:21:30,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [608993314] [2020-10-19 22:21:30,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:30,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:30,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648302025] [2020-10-19 22:21:30,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:30,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:30,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:30,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:30,534 INFO L87 Difference]: Start difference. First operand 553 states and 762 transitions. Second operand 4 states. [2020-10-19 22:21:30,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:30,617 INFO L93 Difference]: Finished difference Result 1520 states and 2113 transitions. [2020-10-19 22:21:30,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:30,618 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-10-19 22:21:30,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:30,624 INFO L225 Difference]: With dead ends: 1520 [2020-10-19 22:21:30,624 INFO L226 Difference]: Without dead ends: 1003 [2020-10-19 22:21:30,625 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:30,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2020-10-19 22:21:30,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2020-10-19 22:21:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1003 states. [2020-10-19 22:21:30,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1392 transitions. [2020-10-19 22:21:30,659 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1392 transitions. Word has length 105 [2020-10-19 22:21:30,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:30,659 INFO L481 AbstractCegarLoop]: Abstraction has 1003 states and 1392 transitions. [2020-10-19 22:21:30,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:30,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1392 transitions. [2020-10-19 22:21:30,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-10-19 22:21:30,663 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:30,663 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:30,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-10-19 22:21:30,879 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:30,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:30,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1519363111, now seen corresponding path program 1 times [2020-10-19 22:21:30,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:30,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [966705002] [2020-10-19 22:21:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:30,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:30,990 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:31,015 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-19 22:21:31,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:31,048 INFO L134 CoverageAnalysis]: Checked inductivity of 470 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2020-10-19 22:21:31,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [966705002] [2020-10-19 22:21:31,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:31,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:31,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483146288] [2020-10-19 22:21:31,050 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:31,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:31,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:31,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:31,051 INFO L87 Difference]: Start difference. First operand 1003 states and 1392 transitions. Second operand 4 states. [2020-10-19 22:21:31,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:31,332 INFO L93 Difference]: Finished difference Result 2091 states and 2938 transitions. [2020-10-19 22:21:31,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:31,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 173 [2020-10-19 22:21:31,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:31,340 INFO L225 Difference]: With dead ends: 2091 [2020-10-19 22:21:31,341 INFO L226 Difference]: Without dead ends: 1124 [2020-10-19 22:21:31,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 342 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:31,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1124 states. [2020-10-19 22:21:31,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1124 to 1095. [2020-10-19 22:21:31,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1095 states. [2020-10-19 22:21:31,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1095 states to 1095 states and 1500 transitions. [2020-10-19 22:21:31,389 INFO L78 Accepts]: Start accepts. Automaton has 1095 states and 1500 transitions. Word has length 173 [2020-10-19 22:21:31,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:31,389 INFO L481 AbstractCegarLoop]: Abstraction has 1095 states and 1500 transitions. [2020-10-19 22:21:31,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:31,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1095 states and 1500 transitions. [2020-10-19 22:21:31,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-19 22:21:31,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:31,396 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:31,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-10-19 22:21:31,611 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:31,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:31,611 INFO L82 PathProgramCache]: Analyzing trace with hash -759567935, now seen corresponding path program 1 times [2020-10-19 22:21:31,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:31,612 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239478168] [2020-10-19 22:21:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:31,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 22:21:31,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:31,785 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 456 proven. 20 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-19 22:21:31,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 440 proven. 36 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2020-10-19 22:21:31,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239478168] [2020-10-19 22:21:31,869 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:21:31,869 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-10-19 22:21:31,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310566231] [2020-10-19 22:21:31,870 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-19 22:21:31,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:31,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-19 22:21:31,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-10-19 22:21:31,871 INFO L87 Difference]: Start difference. First operand 1095 states and 1500 transitions. Second operand 8 states. [2020-10-19 22:21:32,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:32,604 INFO L93 Difference]: Finished difference Result 2572 states and 3550 transitions. [2020-10-19 22:21:32,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-19 22:21:32,605 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 194 [2020-10-19 22:21:32,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:32,613 INFO L225 Difference]: With dead ends: 2572 [2020-10-19 22:21:32,613 INFO L226 Difference]: Without dead ends: 1513 [2020-10-19 22:21:32,615 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-19 22:21:32,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1513 states. [2020-10-19 22:21:32,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1513 to 1404. [2020-10-19 22:21:32,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1404 states. [2020-10-19 22:21:32,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1404 states to 1404 states and 1914 transitions. [2020-10-19 22:21:32,674 INFO L78 Accepts]: Start accepts. Automaton has 1404 states and 1914 transitions. Word has length 194 [2020-10-19 22:21:32,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:32,675 INFO L481 AbstractCegarLoop]: Abstraction has 1404 states and 1914 transitions. [2020-10-19 22:21:32,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-19 22:21:32,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1404 states and 1914 transitions. [2020-10-19 22:21:32,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-19 22:21:32,680 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:32,680 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 10, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:32,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-10-19 22:21:32,902 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:32,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:32,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1233429647, now seen corresponding path program 1 times [2020-10-19 22:21:32,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:32,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602692038] [2020-10-19 22:21:32,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:33,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:33,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:33,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:33,059 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-10-19 22:21:33,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:33,107 INFO L134 CoverageAnalysis]: Checked inductivity of 749 backedges. 461 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2020-10-19 22:21:33,108 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602692038] [2020-10-19 22:21:33,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:33,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:33,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016750907] [2020-10-19 22:21:33,109 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:33,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:33,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:33,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:33,110 INFO L87 Difference]: Start difference. First operand 1404 states and 1914 transitions. Second operand 4 states. [2020-10-19 22:21:33,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:33,385 INFO L93 Difference]: Finished difference Result 2921 states and 4033 transitions. [2020-10-19 22:21:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:33,385 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 219 [2020-10-19 22:21:33,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:33,393 INFO L225 Difference]: With dead ends: 2921 [2020-10-19 22:21:33,393 INFO L226 Difference]: Without dead ends: 1574 [2020-10-19 22:21:33,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 436 GetRequests, 434 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:33,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2020-10-19 22:21:33,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1544. [2020-10-19 22:21:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1544 states. [2020-10-19 22:21:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2074 transitions. [2020-10-19 22:21:33,461 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2074 transitions. Word has length 219 [2020-10-19 22:21:33,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:33,462 INFO L481 AbstractCegarLoop]: Abstraction has 1544 states and 2074 transitions. [2020-10-19 22:21:33,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2074 transitions. [2020-10-19 22:21:33,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-10-19 22:21:33,467 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:33,468 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:33,681 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-10-19 22:21:33,682 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:33,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1201727504, now seen corresponding path program 1 times [2020-10-19 22:21:33,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:33,684 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53112047] [2020-10-19 22:21:33,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:33,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:33,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:33,918 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-19 22:21:33,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:33,971 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 477 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-19 22:21:33,972 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53112047] [2020-10-19 22:21:33,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:33,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:33,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774937436] [2020-10-19 22:21:33,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:33,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:33,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:33,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:33,975 INFO L87 Difference]: Start difference. First operand 1544 states and 2074 transitions. Second operand 4 states. [2020-10-19 22:21:34,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:34,249 INFO L93 Difference]: Finished difference Result 3201 states and 4369 transitions. [2020-10-19 22:21:34,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:34,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 230 [2020-10-19 22:21:34,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:34,257 INFO L225 Difference]: With dead ends: 3201 [2020-10-19 22:21:34,257 INFO L226 Difference]: Without dead ends: 1714 [2020-10-19 22:21:34,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 456 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:34,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2020-10-19 22:21:34,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1699. [2020-10-19 22:21:34,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2020-10-19 22:21:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2249 transitions. [2020-10-19 22:21:34,313 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2249 transitions. Word has length 230 [2020-10-19 22:21:34,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:34,313 INFO L481 AbstractCegarLoop]: Abstraction has 1699 states and 2249 transitions. [2020-10-19 22:21:34,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:34,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2249 transitions. [2020-10-19 22:21:34,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-10-19 22:21:34,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:34,319 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 12, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:34,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-10-19 22:21:34,534 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1748413006, now seen corresponding path program 1 times [2020-10-19 22:21:34,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:34,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110258892] [2020-10-19 22:21:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:34,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:34,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-10-19 22:21:34,707 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:34,776 INFO L134 CoverageAnalysis]: Checked inductivity of 984 backedges. 563 proven. 0 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-10-19 22:21:34,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110258892] [2020-10-19 22:21:34,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:34,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:34,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725305766] [2020-10-19 22:21:34,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:34,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:34,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:34,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:34,779 INFO L87 Difference]: Start difference. First operand 1699 states and 2249 transitions. Second operand 4 states. [2020-10-19 22:21:35,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:35,056 INFO L93 Difference]: Finished difference Result 3576 states and 4804 transitions. [2020-10-19 22:21:35,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:35,057 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 260 [2020-10-19 22:21:35,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:35,066 INFO L225 Difference]: With dead ends: 3576 [2020-10-19 22:21:35,066 INFO L226 Difference]: Without dead ends: 1934 [2020-10-19 22:21:35,070 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:35,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2020-10-19 22:21:35,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1884. [2020-10-19 22:21:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1884 states. [2020-10-19 22:21:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1884 states to 1884 states and 2454 transitions. [2020-10-19 22:21:35,135 INFO L78 Accepts]: Start accepts. Automaton has 1884 states and 2454 transitions. Word has length 260 [2020-10-19 22:21:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:35,135 INFO L481 AbstractCegarLoop]: Abstraction has 1884 states and 2454 transitions. [2020-10-19 22:21:35,136 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:35,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1884 states and 2454 transitions. [2020-10-19 22:21:35,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2020-10-19 22:21:35,145 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:35,145 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:35,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-10-19 22:21:35,369 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:35,370 INFO L82 PathProgramCache]: Analyzing trace with hash -541056141, now seen corresponding path program 1 times [2020-10-19 22:21:35,371 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:35,371 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031550651] [2020-10-19 22:21:35,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:35,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:35,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:35,560 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-10-19 22:21:35,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:35,628 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2020-10-19 22:21:35,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031550651] [2020-10-19 22:21:35,629 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:35,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:35,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127816842] [2020-10-19 22:21:35,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:35,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:35,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:35,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:35,631 INFO L87 Difference]: Start difference. First operand 1884 states and 2454 transitions. Second operand 4 states. [2020-10-19 22:21:35,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:35,785 INFO L93 Difference]: Finished difference Result 7200 states and 9404 transitions. [2020-10-19 22:21:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:35,786 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 261 [2020-10-19 22:21:35,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:35,815 INFO L225 Difference]: With dead ends: 7200 [2020-10-19 22:21:35,815 INFO L226 Difference]: Without dead ends: 5373 [2020-10-19 22:21:35,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 518 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:35,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5373 states. [2020-10-19 22:21:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5373 to 5369. [2020-10-19 22:21:36,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5369 states. [2020-10-19 22:21:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5369 states to 5369 states and 7007 transitions. [2020-10-19 22:21:36,096 INFO L78 Accepts]: Start accepts. Automaton has 5369 states and 7007 transitions. Word has length 261 [2020-10-19 22:21:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:36,097 INFO L481 AbstractCegarLoop]: Abstraction has 5369 states and 7007 transitions. [2020-10-19 22:21:36,097 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:36,098 INFO L276 IsEmpty]: Start isEmpty. Operand 5369 states and 7007 transitions. [2020-10-19 22:21:36,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-19 22:21:36,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:36,113 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 13, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:36,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-10-19 22:21:36,334 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:36,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:36,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1252386761, now seen corresponding path program 1 times [2020-10-19 22:21:36,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:36,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948753147] [2020-10-19 22:21:36,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:36,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:36,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:36,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2020-10-19 22:21:36,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:36,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2020-10-19 22:21:36,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948753147] [2020-10-19 22:21:36,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:36,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:36,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987851825] [2020-10-19 22:21:36,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:36,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:36,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:36,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:36,803 INFO L87 Difference]: Start difference. First operand 5369 states and 7007 transitions. Second operand 4 states. [2020-10-19 22:21:37,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:37,165 INFO L93 Difference]: Finished difference Result 10996 states and 14405 transitions. [2020-10-19 22:21:37,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:37,165 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 285 [2020-10-19 22:21:37,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:37,189 INFO L225 Difference]: With dead ends: 10996 [2020-10-19 22:21:37,190 INFO L226 Difference]: Without dead ends: 5684 [2020-10-19 22:21:37,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 568 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:37,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2020-10-19 22:21:37,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 5534. [2020-10-19 22:21:37,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5534 states. [2020-10-19 22:21:37,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5534 states to 5534 states and 7182 transitions. [2020-10-19 22:21:37,446 INFO L78 Accepts]: Start accepts. Automaton has 5534 states and 7182 transitions. Word has length 285 [2020-10-19 22:21:37,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:37,447 INFO L481 AbstractCegarLoop]: Abstraction has 5534 states and 7182 transitions. [2020-10-19 22:21:37,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:37,447 INFO L276 IsEmpty]: Start isEmpty. Operand 5534 states and 7182 transitions. [2020-10-19 22:21:37,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-19 22:21:37,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:37,465 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 13, 13, 11, 11, 9, 9, 7, 7, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:37,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-10-19 22:21:37,678 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:37,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:37,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1370167796, now seen corresponding path program 1 times [2020-10-19 22:21:37,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:37,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031171530] [2020-10-19 22:21:37,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:37,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:37,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:37,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-10-19 22:21:37,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:38,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1205 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2020-10-19 22:21:38,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031171530] [2020-10-19 22:21:38,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:38,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:38,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454852904] [2020-10-19 22:21:38,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:38,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:38,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:38,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:38,014 INFO L87 Difference]: Start difference. First operand 5534 states and 7182 transitions. Second operand 4 states. [2020-10-19 22:21:38,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:38,373 INFO L93 Difference]: Finished difference Result 11716 states and 15430 transitions. [2020-10-19 22:21:38,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:38,373 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 297 [2020-10-19 22:21:38,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:38,413 INFO L225 Difference]: With dead ends: 11716 [2020-10-19 22:21:38,413 INFO L226 Difference]: Without dead ends: 6239 [2020-10-19 22:21:38,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 590 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6239 states. [2020-10-19 22:21:38,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6239 to 6089. [2020-10-19 22:21:38,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6089 states. [2020-10-19 22:21:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6089 states to 6089 states and 7797 transitions. [2020-10-19 22:21:38,584 INFO L78 Accepts]: Start accepts. Automaton has 6089 states and 7797 transitions. Word has length 297 [2020-10-19 22:21:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:38,584 INFO L481 AbstractCegarLoop]: Abstraction has 6089 states and 7797 transitions. [2020-10-19 22:21:38,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:38,585 INFO L276 IsEmpty]: Start isEmpty. Operand 6089 states and 7797 transitions. [2020-10-19 22:21:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-19 22:21:38,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:38,599 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 14, 12, 12, 10, 10, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:38,812 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-10-19 22:21:38,812 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:38,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:38,812 INFO L82 PathProgramCache]: Analyzing trace with hash 814591708, now seen corresponding path program 1 times [2020-10-19 22:21:38,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:38,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2120286706] [2020-10-19 22:21:38,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:38,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:38,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:39,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 757 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:21:39,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1446 backedges. 757 proven. 0 refuted. 0 times theorem prover too weak. 689 trivial. 0 not checked. [2020-10-19 22:21:39,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2120286706] [2020-10-19 22:21:39,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:39,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:39,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571149987] [2020-10-19 22:21:39,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:39,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:39,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:39,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:39,265 INFO L87 Difference]: Start difference. First operand 6089 states and 7797 transitions. Second operand 4 states. [2020-10-19 22:21:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:39,620 INFO L93 Difference]: Finished difference Result 12871 states and 16735 transitions. [2020-10-19 22:21:39,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:39,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 334 [2020-10-19 22:21:39,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:39,634 INFO L225 Difference]: With dead ends: 12871 [2020-10-19 22:21:39,635 INFO L226 Difference]: Without dead ends: 6839 [2020-10-19 22:21:39,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 664 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:39,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6839 states. [2020-10-19 22:21:39,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6839 to 6704. [2020-10-19 22:21:39,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6704 states. [2020-10-19 22:21:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6704 states to 6704 states and 8472 transitions. [2020-10-19 22:21:39,838 INFO L78 Accepts]: Start accepts. Automaton has 6704 states and 8472 transitions. Word has length 334 [2020-10-19 22:21:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:39,838 INFO L481 AbstractCegarLoop]: Abstraction has 6704 states and 8472 transitions. [2020-10-19 22:21:39,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 6704 states and 8472 transitions. [2020-10-19 22:21:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2020-10-19 22:21:39,853 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:39,853 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:40,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-10-19 22:21:40,067 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:40,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:40,067 INFO L82 PathProgramCache]: Analyzing trace with hash 562644076, now seen corresponding path program 1 times [2020-10-19 22:21:40,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:40,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [299311622] [2020-10-19 22:21:40,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 21 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:40,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:21:40,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:40,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 903 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-10-19 22:21:40,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1562 backedges. 903 proven. 10 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2020-10-19 22:21:40,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [299311622] [2020-10-19 22:21:40,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:21:40,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 22:21:40,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009465255] [2020-10-19 22:21:40,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 22:21:40,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:40,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 22:21:40,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:21:40,587 INFO L87 Difference]: Start difference. First operand 6704 states and 8472 transitions. Second operand 6 states. [2020-10-19 22:21:41,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:41,767 INFO L93 Difference]: Finished difference Result 21875 states and 27687 transitions. [2020-10-19 22:21:41,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-19 22:21:41,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 357 [2020-10-19 22:21:41,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:41,796 INFO L225 Difference]: With dead ends: 21875 [2020-10-19 22:21:41,796 INFO L226 Difference]: Without dead ends: 15228 [2020-10-19 22:21:41,805 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 720 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-10-19 22:21:41,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15228 states. [2020-10-19 22:21:42,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15228 to 9232. [2020-10-19 22:21:42,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9232 states. [2020-10-19 22:21:42,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9232 states to 9232 states and 11823 transitions. [2020-10-19 22:21:42,159 INFO L78 Accepts]: Start accepts. Automaton has 9232 states and 11823 transitions. Word has length 357 [2020-10-19 22:21:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:42,159 INFO L481 AbstractCegarLoop]: Abstraction has 9232 states and 11823 transitions. [2020-10-19 22:21:42,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 22:21:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 9232 states and 11823 transitions. [2020-10-19 22:21:42,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-19 22:21:42,173 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:42,173 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 15, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:42,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 mathsat -unsat_core_generation=3 [2020-10-19 22:21:42,387 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:42,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:42,387 INFO L82 PathProgramCache]: Analyzing trace with hash 78805813, now seen corresponding path program 1 times [2020-10-19 22:21:42,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:42,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1909677101] [2020-10-19 22:21:42,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 22 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:42,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:42,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:42,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:42,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-19 22:21:42,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:42,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 928 proven. 0 refuted. 0 times theorem prover too weak. 647 trivial. 0 not checked. [2020-10-19 22:21:42,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1909677101] [2020-10-19 22:21:42,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:42,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:42,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370857933] [2020-10-19 22:21:42,882 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:42,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:42,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:42,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:42,883 INFO L87 Difference]: Start difference. First operand 9232 states and 11823 transitions. Second operand 3 states. [2020-10-19 22:21:43,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:43,126 INFO L93 Difference]: Finished difference Result 19629 states and 24779 transitions. [2020-10-19 22:21:43,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:43,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 359 [2020-10-19 22:21:43,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:43,145 INFO L225 Difference]: With dead ends: 19629 [2020-10-19 22:21:43,145 INFO L226 Difference]: Without dead ends: 10454 [2020-10-19 22:21:43,153 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 715 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:43,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10454 states. [2020-10-19 22:21:43,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10454 to 10024. [2020-10-19 22:21:43,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10024 states. [2020-10-19 22:21:43,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10024 states to 10024 states and 12495 transitions. [2020-10-19 22:21:43,453 INFO L78 Accepts]: Start accepts. Automaton has 10024 states and 12495 transitions. Word has length 359 [2020-10-19 22:21:43,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:43,454 INFO L481 AbstractCegarLoop]: Abstraction has 10024 states and 12495 transitions. [2020-10-19 22:21:43,454 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:43,454 INFO L276 IsEmpty]: Start isEmpty. Operand 10024 states and 12495 transitions. [2020-10-19 22:21:43,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2020-10-19 22:21:43,470 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:43,471 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 16, 15, 14, 12, 12, 11, 11, 10, 10, 9, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:21:43,684 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 mathsat -unsat_core_generation=3 [2020-10-19 22:21:43,684 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:43,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:43,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1396739116, now seen corresponding path program 1 times [2020-10-19 22:21:43,686 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:43,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [211424402] [2020-10-19 22:21:43,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:43,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:43,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:43,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2020-10-19 22:21:43,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:44,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2061 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2020-10-19 22:21:44,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [211424402] [2020-10-19 22:21:44,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:44,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-19 22:21:44,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657325606] [2020-10-19 22:21:44,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:21:44,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:44,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:21:44,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:44,282 INFO L87 Difference]: Start difference. First operand 10024 states and 12495 transitions. Second operand 3 states. [2020-10-19 22:21:44,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:44,437 INFO L93 Difference]: Finished difference Result 15258 states and 19066 transitions. [2020-10-19 22:21:44,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:21:44,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 434 [2020-10-19 22:21:44,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:44,447 INFO L225 Difference]: With dead ends: 15258 [2020-10-19 22:21:44,448 INFO L226 Difference]: Without dead ends: 6496 [2020-10-19 22:21:44,455 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 865 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:21:44,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6496 states. [2020-10-19 22:21:44,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6496 to 6494. [2020-10-19 22:21:44,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6494 states. [2020-10-19 22:21:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6494 states to 6494 states and 8175 transitions. [2020-10-19 22:21:44,639 INFO L78 Accepts]: Start accepts. Automaton has 6494 states and 8175 transitions. Word has length 434 [2020-10-19 22:21:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:44,640 INFO L481 AbstractCegarLoop]: Abstraction has 6494 states and 8175 transitions. [2020-10-19 22:21:44,640 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:21:44,640 INFO L276 IsEmpty]: Start isEmpty. Operand 6494 states and 8175 transitions. [2020-10-19 22:21:44,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2020-10-19 22:21:44,652 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:44,652 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 19, 18, 17, 15, 15, 14, 14, 13, 13, 12, 11, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-19 22:21:44,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3 [2020-10-19 22:21:44,866 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:44,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:44,866 INFO L82 PathProgramCache]: Analyzing trace with hash -839302048, now seen corresponding path program 1 times [2020-10-19 22:21:44,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:44,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419249435] [2020-10-19 22:21:44,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 24 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:44,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:45,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 22:21:45,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2020-10-19 22:21:45,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:45,325 INFO L134 CoverageAnalysis]: Checked inductivity of 3220 backedges. 1527 proven. 0 refuted. 0 times theorem prover too weak. 1693 trivial. 0 not checked. [2020-10-19 22:21:45,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419249435] [2020-10-19 22:21:45,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:21:45,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-10-19 22:21:45,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316843932] [2020-10-19 22:21:45,327 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-19 22:21:45,327 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:45,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-19 22:21:45,328 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:45,328 INFO L87 Difference]: Start difference. First operand 6494 states and 8175 transitions. Second operand 4 states. [2020-10-19 22:21:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:45,827 INFO L93 Difference]: Finished difference Result 13252 states and 16870 transitions. [2020-10-19 22:21:45,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-19 22:21:45,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 544 [2020-10-19 22:21:45,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:45,835 INFO L225 Difference]: With dead ends: 13252 [2020-10-19 22:21:45,836 INFO L226 Difference]: Without dead ends: 6185 [2020-10-19 22:21:45,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1086 GetRequests, 1084 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-19 22:21:45,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6185 states. [2020-10-19 22:21:45,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6185 to 6134. [2020-10-19 22:21:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6134 states. [2020-10-19 22:21:45,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6134 states to 6134 states and 7635 transitions. [2020-10-19 22:21:45,993 INFO L78 Accepts]: Start accepts. Automaton has 6134 states and 7635 transitions. Word has length 544 [2020-10-19 22:21:45,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:45,994 INFO L481 AbstractCegarLoop]: Abstraction has 6134 states and 7635 transitions. [2020-10-19 22:21:45,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-19 22:21:45,994 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states and 7635 transitions. [2020-10-19 22:21:46,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2020-10-19 22:21:46,004 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:21:46,005 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 21, 20, 19, 17, 17, 16, 16, 15, 15, 13, 13, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 8, 8, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-19 22:21:46,219 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 mathsat -unsat_core_generation=3 [2020-10-19 22:21:46,219 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:21:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:21:46,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1723660819, now seen corresponding path program 1 times [2020-10-19 22:21:46,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-19 22:21:46,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1163435450] [2020-10-19 22:21:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 25 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with mathsat -unsat_core_generation=3 [2020-10-19 22:21:46,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:21:46,379 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-19 22:21:46,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 22:21:46,647 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2020-10-19 22:21:46,647 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-19 22:21:47,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4151 backedges. 2135 proven. 14 refuted. 0 times theorem prover too weak. 2002 trivial. 0 not checked. [2020-10-19 22:21:47,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1163435450] [2020-10-19 22:21:47,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-19 22:21:47,107 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2020-10-19 22:21:47,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760904251] [2020-10-19 22:21:47,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-19 22:21:47,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-19 22:21:47,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-19 22:21:47,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-19 22:21:47,109 INFO L87 Difference]: Start difference. First operand 6134 states and 7635 transitions. Second operand 6 states. [2020-10-19 22:21:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:21:47,410 INFO L93 Difference]: Finished difference Result 6347 states and 7905 transitions. [2020-10-19 22:21:47,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 22:21:47,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 619 [2020-10-19 22:21:47,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:21:47,416 INFO L225 Difference]: With dead ends: 6347 [2020-10-19 22:21:47,416 INFO L226 Difference]: Without dead ends: 0 [2020-10-19 22:21:47,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1234 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-19 22:21:47,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-19 22:21:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-19 22:21:47,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-19 22:21:47,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-19 22:21:47,424 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 619 [2020-10-19 22:21:47,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:21:47,424 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 22:21:47,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-19 22:21:47,424 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-19 22:21:47,425 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 22:21:47,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 mathsat -unsat_core_generation=3 [2020-10-19 22:21:47,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-19 22:21:47,966 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 120 [2020-10-19 22:21:48,644 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 544 DAG size of output: 181 [2020-10-19 22:21:49,163 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 52 [2020-10-19 22:21:49,362 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-19 22:21:49,739 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 63 [2020-10-19 22:21:49,853 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 44 [2020-10-19 22:21:50,092 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2020-10-19 22:21:50,222 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-10-19 22:21:51,350 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 147 DAG size of output: 118 [2020-10-19 22:21:51,600 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 52 [2020-10-19 22:21:51,772 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 32 [2020-10-19 22:21:52,217 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 52 [2020-10-19 22:21:52,454 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2020-10-19 22:21:53,080 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 63 [2020-10-19 22:21:53,220 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2020-10-19 22:21:53,253 INFO L270 CegarLoopResult]: At program point L135(lines 131 556) the Hoare annotation is: (and (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32)))) [2020-10-19 22:21:53,254 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-19 22:21:53,255 INFO L270 CegarLoopResult]: At program point L532(lines 95 598) the Hoare annotation is: (let ((.cse4 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)))) (let ((.cse3 (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962784 32)))) (.cse10 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294967293 32)) (_ bv0 32))) (.cse0 (not .cse4)) (.cse1 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (.cse12 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (.cse11 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4294962928 32)) (_ bv0 32)))) (.cse9 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32))) (.cse5 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) (.cse6 (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0)) (.cse2 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962768 32)) (_ bv0 32))) (.cse7 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0)) (.cse8 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3) (and .cse4 .cse5 .cse6 .cse3 .cse7 .cse8) (and .cse4 .cse5 .cse6 .cse7 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962800 32)) (_ bv0 32)) .cse8) (and .cse4 .cse1 .cse9) (and .cse4 .cse5 .cse6 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962848 32)) (_ bv0 32)) .cse7 .cse8) (and .cse4 .cse5 .cse6 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962880 32)) (_ bv0 32))) (and .cse4 .cse5 .cse6 .cse7 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32)) .cse8) (and .cse4 .cse5 .cse6 (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962816 32))) .cse7 .cse8) (and .cse0 .cse10 .cse1 .cse11) (and .cse0 .cse10 .cse6 .cse11 .cse7 .cse8) (and .cse4 .cse5 .cse6 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) .cse7 (not .cse12) .cse8 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (= (_ bv4560 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)) (and .cse0 (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4294967293 32))) .cse1 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962944 32)) (_ bv0 32))) (and .cse0 .cse1 (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962736 32)))) (and .cse4 .cse5 .cse6 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962832 32)) (_ bv0 32)) .cse7 .cse8) (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse12) (and .cse4 .cse5 .cse6 .cse11 .cse7 .cse9 .cse8) (and .cse4 .cse5 .cse6 .cse2 .cse7 .cse8) (and (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962912 32)) (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))))) [2020-10-19 22:21:53,255 INFO L277 CegarLoopResult]: At program point L599(lines 94 600) the Hoare annotation is: true [2020-10-19 22:21:53,256 INFO L274 CegarLoopResult]: For program point L170(lines 170 543) no Hoare annotation was computed. [2020-10-19 22:21:53,256 INFO L274 CegarLoopResult]: For program point L137(lines 137 554) no Hoare annotation was computed. [2020-10-19 22:21:53,256 INFO L274 CegarLoopResult]: For program point L104(lines 104 565) no Hoare annotation was computed. [2020-10-19 22:21:53,256 INFO L274 CegarLoopResult]: For program point L369(lines 369 373) no Hoare annotation was computed. [2020-10-19 22:21:53,256 INFO L274 CegarLoopResult]: For program point L369-2(lines 369 373) no Hoare annotation was computed. [2020-10-19 22:21:53,256 INFO L274 CegarLoopResult]: For program point L303-1(lines 303 317) no Hoare annotation was computed. [2020-10-19 22:21:53,257 INFO L270 CegarLoopResult]: At program point L204(lines 101 566) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32)))) [2020-10-19 22:21:53,257 INFO L270 CegarLoopResult]: At program point L171(lines 167 544) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32)))) [2020-10-19 22:21:53,257 INFO L274 CegarLoopResult]: For program point L568(lines 568 596) no Hoare annotation was computed. [2020-10-19 22:21:53,257 INFO L274 CegarLoopResult]: For program point L569(lines 569 593) no Hoare annotation was computed. [2020-10-19 22:21:53,257 INFO L274 CegarLoopResult]: For program point L503-1(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,257 INFO L274 CegarLoopResult]: For program point L338(lines 338 343) no Hoare annotation was computed. [2020-10-19 22:21:53,257 INFO L274 CegarLoopResult]: For program point L173(lines 173 542) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L274 CegarLoopResult]: For program point L140(lines 140 553) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L274 CegarLoopResult]: For program point L107(lines 107 564) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L274 CegarLoopResult]: For program point L603(lines 603 607) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L274 CegarLoopResult]: For program point L570(lines 570 579) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L274 CegarLoopResult]: For program point L603-2(lines 603 607) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L274 CegarLoopResult]: For program point L570-2(lines 569 591) no Hoare annotation was computed. [2020-10-19 22:21:53,258 INFO L270 CegarLoopResult]: At program point L141(lines 137 554) the Hoare annotation is: (and (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0))) [2020-10-19 22:21:53,259 INFO L274 CegarLoopResult]: For program point L75(lines 75 83) no Hoare annotation was computed. [2020-10-19 22:21:53,259 INFO L274 CegarLoopResult]: For program point L307(lines 307 311) no Hoare annotation was computed. [2020-10-19 22:21:53,259 INFO L274 CegarLoopResult]: For program point L307-2(lines 305 317) no Hoare annotation was computed. [2020-10-19 22:21:53,259 INFO L274 CegarLoopResult]: For program point L572(lines 572 576) no Hoare annotation was computed. [2020-10-19 22:21:53,259 INFO L274 CegarLoopResult]: For program point L440(lines 440 445) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L275(lines 275 279) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L209(lines 209 213) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L176(lines 176 541) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L143(lines 143 552) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L209-2(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L110(lines 110 563) no Hoare annotation was computed. [2020-10-19 22:21:53,260 INFO L274 CegarLoopResult]: For program point L474(lines 474 478) no Hoare annotation was computed. [2020-10-19 22:21:53,261 INFO L270 CegarLoopResult]: At program point L177(lines 173 542) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32)))) (.cse4 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32))))) (.cse5 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32)))) (.cse7 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32)))) (.cse1 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32))))) (.cse2 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32))))) (.cse6 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32)))) (.cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))))) (or (and (not .cse0) .cse1 .cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32)))) (and .cse0 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse3 .cse4 .cse5 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) .cse7 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse6 .cse8))) [2020-10-19 22:21:53,261 INFO L274 CegarLoopResult]: For program point L78(lines 78 82) no Hoare annotation was computed. [2020-10-19 22:21:53,261 INFO L274 CegarLoopResult]: For program point L78-2(lines 75 83) no Hoare annotation was computed. [2020-10-19 22:21:53,261 INFO L274 CegarLoopResult]: For program point L508-1(lines 508 512) no Hoare annotation was computed. [2020-10-19 22:21:53,261 INFO L274 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-10-19 22:21:53,261 INFO L274 CegarLoopResult]: For program point L245(lines 245 250) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L179(lines 179 540) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L146(lines 146 551) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L113(lines 113 562) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L270 CegarLoopResult]: At program point L147(lines 143 552) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32)))) [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L479(lines 479 483) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L182(lines 182 539) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L149(lines 149 550) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L116(lines 116 561) no Hoare annotation was computed. [2020-10-19 22:21:53,262 INFO L274 CegarLoopResult]: For program point L381(lines 381 385) no Hoare annotation was computed. [2020-10-19 22:21:53,263 INFO L274 CegarLoopResult]: For program point L348(lines 348 352) no Hoare annotation was computed. [2020-10-19 22:21:53,263 INFO L270 CegarLoopResult]: At program point L183(lines 179 540) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32)))) (.cse4 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32))))) (.cse5 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32)))) (.cse7 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32)))) (.cse1 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32))))) (.cse2 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32))))) (.cse6 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32)))) (.cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))))) (or (and (not .cse0) .cse1 .cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32)))) (and .cse0 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse3 .cse4 .cse5 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) .cse7 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse6 .cse8))) [2020-10-19 22:21:53,263 INFO L270 CegarLoopResult]: At program point L117(lines 113 562) the Hoare annotation is: (and (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32)))) [2020-10-19 22:21:53,263 INFO L270 CegarLoopResult]: At program point L349(lines 67 616) the Hoare annotation is: false [2020-10-19 22:21:53,263 INFO L274 CegarLoopResult]: For program point L85(lines 85 93) no Hoare annotation was computed. [2020-10-19 22:21:53,263 INFO L277 CegarLoopResult]: At program point L614(lines 67 616) the Hoare annotation is: true [2020-10-19 22:21:53,263 INFO L274 CegarLoopResult]: For program point L581(lines 581 587) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L515(lines 515 519) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L515-2(lines 515 519) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L284(lines 284 288) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L284-2(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L185(lines 185 538) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L152(lines 152 549) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L119(lines 119 560) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L86(lines 86 90) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L277 CegarLoopResult]: At program point L615(lines 10 617) the Hoare annotation is: true [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L450(lines 450 454) no Hoare annotation was computed. [2020-10-19 22:21:53,264 INFO L274 CegarLoopResult]: For program point L353(lines 353 357) no Hoare annotation was computed. [2020-10-19 22:21:53,265 INFO L274 CegarLoopResult]: For program point L221(lines 221 238) no Hoare annotation was computed. [2020-10-19 22:21:53,265 INFO L274 CegarLoopResult]: For program point L188(lines 188 537) no Hoare annotation was computed. [2020-10-19 22:21:53,265 INFO L274 CegarLoopResult]: For program point L155(lines 155 548) no Hoare annotation was computed. [2020-10-19 22:21:53,265 INFO L274 CegarLoopResult]: For program point L221-2(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,265 INFO L274 CegarLoopResult]: For program point L122(lines 122 559) no Hoare annotation was computed. [2020-10-19 22:21:53,265 INFO L270 CegarLoopResult]: At program point L189(lines 185 538) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32)))) (.cse4 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32))))) (.cse5 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32)))) (.cse7 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32)))) (.cse1 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32))))) (.cse2 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32))))) (.cse6 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32)))) (.cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))))) (or (and (not .cse0) .cse1 .cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32)))) (and .cse0 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse3 .cse4 .cse5 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) .cse7 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1 .cse2 .cse6 .cse8 (= (_ bv4560 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)))) [2020-10-19 22:21:53,265 INFO L270 CegarLoopResult]: At program point L123(lines 119 560) the Hoare annotation is: (let ((.cse2 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32)))) (.cse3 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32))))) (.cse4 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32)))) (.cse6 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32)))) (.cse0 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32))))) (.cse1 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32))))) (.cse5 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32)))) (.cse7 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= (_ bv1 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse5 .cse6 .cse7 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962896 32)) (_ bv0 32)))) (and (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse2 .cse3 .cse4 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) .cse6 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse0 .cse1 .cse5 .cse7 (= (_ bv4560 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0)))) [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L487-1(lines 487 499) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L421(lines 421 425) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L223(lines 223 228) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L191(lines 191 536) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L158(lines 158 547) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L125(lines 125 558) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L274 CegarLoopResult]: For program point L522(lines 522 526) no Hoare annotation was computed. [2020-10-19 22:21:53,266 INFO L270 CegarLoopResult]: At program point L192(lines 191 536) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse1 (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962944 32)) (_ bv0 32)))) (or (and (not .cse0) (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4294967293 32))) (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse1) (and .cse0 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) (= (_ bv4560 32) ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse1))) [2020-10-19 22:21:53,266 INFO L270 CegarLoopResult]: At program point L159(lines 149 550) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32)))) [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L490(lines 490 495) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L457(lines 457 468) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L457-1(lines 457 468) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L325(lines 325 329) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L259(lines 259 267) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L325-2(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 22:21:53,267 INFO L274 CegarLoopResult]: For program point L392(lines 392 396) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L194(lines 194 535) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L161(lines 161 546) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L128(lines 128 557) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L95-1(lines 67 616) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L459(lines 459 465) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L294(lines 294 298) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L294-2(lines 294 298) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L277 CegarLoopResult]: At program point L195(lines 194 535) the Hoare annotation is: true [2020-10-19 22:21:53,268 INFO L270 CegarLoopResult]: At program point L129(lines 125 558) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32))) (.cse3 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32)))) (.cse4 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32))))) (.cse5 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32)))) (.cse7 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32)))) (.cse0 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32))))) (.cse2 (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32))))) (.cse6 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32)))) (.cse8 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32))))) (or (and .cse0 .cse1 .cse2 (= (_ bv2 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) .cse3 .cse4 (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__s3__tmp__next_state___0~0 (_ bv4294962928 32)) (_ bv0 32))) .cse5 (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) .cse7 (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) .cse0 .cse2 .cse6 .cse8))) [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-19 22:21:53,268 INFO L274 CegarLoopResult]: For program point L262(lines 262 266) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L229(lines 229 234) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L262-2(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L277 CegarLoopResult]: At program point L626(lines 618 628) the Hoare annotation is: true [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L164(lines 164 545) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L131(lines 131 556) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L98(lines 98 567) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L429(lines 429 433) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L274 CegarLoopResult]: For program point L429-2(lines 199 531) no Hoare annotation was computed. [2020-10-19 22:21:53,269 INFO L277 CegarLoopResult]: At program point L198(lines 197 534) the Hoare annotation is: true [2020-10-19 22:21:53,270 INFO L270 CegarLoopResult]: At program point L165(lines 161 546) the Hoare annotation is: (and (= ULTIMATE.start_ssl3_connect_~s__hit~0 (_ bv0 32)) (not (= (_ bv5 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (= (_ bv61087 32) ULTIMATE.start_ssl3_connect_~ag_Y~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962927 32)) (_ bv0 32))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294950912 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) (= (_ bv65535 32) ULTIMATE.start_ssl3_connect_~ag_X~0) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962928 32)) (_ bv0 32))) (not (= (_ bv3 32) ULTIMATE.start_ssl3_connect_~blastFlag~0)) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963200 32)))) (not (= (_ bv0 32) (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294963197 32)))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294946816 32)) (_ bv0 32))) (not (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294962864 32)) (_ bv0 32)))) [2020-10-19 22:21:53,270 INFO L270 CegarLoopResult]: At program point L99(lines 98 567) the Hoare annotation is: (and (= (_ bv0 32) ULTIMATE.start_ssl3_connect_~blastFlag~0) (= (bvadd ULTIMATE.start_ssl3_connect_~s__state~0 (_ bv4294955004 32)) (_ bv0 32))) [2020-10-19 22:21:53,270 INFO L274 CegarLoopResult]: For program point L364(lines 364 368) no Hoare annotation was computed. [2020-10-19 22:21:53,270 INFO L274 CegarLoopResult]: For program point L398(lines 398 403) no Hoare annotation was computed. [2020-10-19 22:21:53,270 INFO L274 CegarLoopResult]: For program point L398-2(lines 398 403) no Hoare annotation was computed. [2020-10-19 22:21:53,270 INFO L274 CegarLoopResult]: For program point L167(lines 167 544) no Hoare annotation was computed. [2020-10-19 22:21:53,270 INFO L274 CegarLoopResult]: For program point L134(lines 134 555) no Hoare annotation was computed. [2020-10-19 22:21:53,270 INFO L274 CegarLoopResult]: For program point L101(lines 101 566) no Hoare annotation was computed. [2020-10-19 22:21:53,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:21:53 BoogieIcfgContainer [2020-10-19 22:21:53,313 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:21:53,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:21:53,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:21:53,314 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:21:53,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:21:24" (3/4) ... [2020-10-19 22:21:53,319 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 22:21:53,343 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-19 22:21:53,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 22:21:53,345 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:21:53,346 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 22:21:53,471 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:21:53,472 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:21:53,473 INFO L168 Benchmark]: Toolchain (without parser) took 30040.91 ms. Allocated memory was 35.1 MB in the beginning and 565.7 MB in the end (delta: 530.6 MB). Free memory was 12.3 MB in the beginning and 421.3 MB in the end (delta: -409.0 MB). Peak memory consumption was 121.5 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,474 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 19.2 MB in the beginning and 19.1 MB in the end (delta: 32.2 kB). Peak memory consumption was 32.2 kB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,475 INFO L168 Benchmark]: CACSL2BoogieTranslator took 512.04 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 11.4 MB in the beginning and 18.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.89 ms. Allocated memory is still 44.0 MB. Free memory was 18.7 MB in the beginning and 16.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,476 INFO L168 Benchmark]: Boogie Preprocessor took 77.29 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 16.0 MB in the beginning and 26.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,476 INFO L168 Benchmark]: RCFGBuilder took 791.62 ms. Allocated memory was 46.1 MB in the beginning and 48.8 MB in the end (delta: 2.6 MB). Free memory was 26.0 MB in the beginning and 12.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,477 INFO L168 Benchmark]: TraceAbstraction took 28432.94 ms. Allocated memory was 48.8 MB in the beginning and 565.7 MB in the end (delta: 516.9 MB). Free memory was 12.5 MB in the beginning and 440.1 MB in the end (delta: -427.6 MB). Peak memory consumption was 445.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,477 INFO L168 Benchmark]: Witness Printer took 157.88 ms. Allocated memory is still 565.7 MB. Free memory was 440.1 MB in the beginning and 421.3 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:21:53,481 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 33.6 MB. Free memory was 19.2 MB in the beginning and 19.1 MB in the end (delta: 32.2 kB). Peak memory consumption was 32.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 512.04 ms. Allocated memory was 35.1 MB in the beginning and 44.0 MB in the end (delta: 8.9 MB). Free memory was 11.4 MB in the beginning and 18.7 MB in the end (delta: -7.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 57.89 ms. Allocated memory is still 44.0 MB. Free memory was 18.7 MB in the beginning and 16.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 77.29 ms. Allocated memory was 44.0 MB in the beginning and 46.1 MB in the end (delta: 2.1 MB). Free memory was 16.0 MB in the beginning and 26.0 MB in the end (delta: -10.0 MB). Peak memory consumption was 4.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 791.62 ms. Allocated memory was 46.1 MB in the beginning and 48.8 MB in the end (delta: 2.6 MB). Free memory was 26.0 MB in the beginning and 12.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 14.3 GB. * TraceAbstraction took 28432.94 ms. Allocated memory was 48.8 MB in the beginning and 565.7 MB in the end (delta: 516.9 MB). Free memory was 12.5 MB in the beginning and 440.1 MB in the end (delta: -427.6 MB). Peak memory consumption was 445.7 MB. Max. memory is 14.3 GB. * Witness Printer took 157.88 ms. Allocated memory is still 565.7 MB. Free memory was 440.1 MB in the beginning and 421.3 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: (((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((((((!(0bv32 == ~bvadd64(s__state, 4294963200bv32)) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 1bv32 == blastFlag) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962896bv32) == 0bv32)) || (((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && 4560bv32 == s__s3__tmp__next_state___0) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 173]: Loop Invariant Derived loop invariant: ((((((((((!(s__hit == 0bv32) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && 2bv32 == blastFlag) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962896bv32) == 0bv32)) || ((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: (((((((((!(0bv32 == ~bvadd64(s__state, 4294963200bv32)) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: ((((((((((!(s__hit == 0bv32) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && 2bv32 == blastFlag) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962896bv32) == 0bv32)) || (((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && 4560bv32 == s__s3__tmp__next_state___0) - InvariantResult [Line: 143]: Loop Invariant Derived loop invariant: (((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32) - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: (((((((((((((((((((!(s__hit == 0bv32) && 2bv32 == blastFlag) && ~bvadd64(s__state, 4294962768bv32) == 0bv32) || ((!(s__hit == 0bv32) && 2bv32 == blastFlag) && 0bv32 == ~bvadd64(s__state, 4294962784bv32))) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && 0bv32 == ~bvadd64(s__state, 4294962784bv32)) && 65535bv32 == ag_X) && !(3bv32 == blastFlag))) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && 65535bv32 == ag_X) && ~bvadd64(s__state, 4294962800bv32) == 0bv32) && !(3bv32 == blastFlag))) || ((s__hit == 0bv32 && 2bv32 == blastFlag) && ~bvadd64(s__state, 4294962896bv32) == 0bv32)) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && ~bvadd64(s__state, 4294962848bv32) == 0bv32) && 65535bv32 == ag_X) && !(3bv32 == blastFlag))) || (((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && ~bvadd64(s__state, 4294962880bv32) == 0bv32)) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && 65535bv32 == ag_X) && ~bvadd64(s__state, 4294962864bv32) == 0bv32) && !(3bv32 == blastFlag))) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && 0bv32 == ~bvadd64(s__state, 4294962816bv32)) && 65535bv32 == ag_X) && !(3bv32 == blastFlag))) || (((!(s__hit == 0bv32) && ~bvadd64(s__state, 4294967293bv32) == 0bv32) && 2bv32 == blastFlag) && !(~bvadd64(s__s3__tmp__next_state___0, 4294962928bv32) == 0bv32))) || (((((!(s__hit == 0bv32) && ~bvadd64(s__state, 4294967293bv32) == 0bv32) && 61087bv32 == ag_Y) && !(~bvadd64(s__s3__tmp__next_state___0, 4294962928bv32) == 0bv32)) && 65535bv32 == ag_X) && !(3bv32 == blastFlag))) || ((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && 4560bv32 == s__s3__tmp__next_state___0)) || (((!(s__hit == 0bv32) && 0bv32 == ~bvadd64(s__s3__tmp__next_state___0, 4294967293bv32)) && 2bv32 == blastFlag) && ~bvadd64(s__state, 4294962944bv32) == 0bv32)) || ((!(s__hit == 0bv32) && 2bv32 == blastFlag) && 0bv32 == ~bvadd64(s__state, 4294962736bv32))) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && ~bvadd64(s__state, 4294962832bv32) == 0bv32) && 65535bv32 == ag_X) && !(3bv32 == blastFlag))) || (0bv32 == blastFlag && ~bvadd64(s__state, 4294962928bv32) == 0bv32)) || ((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__s3__tmp__next_state___0, 4294962928bv32) == 0bv32)) && 65535bv32 == ag_X) && ~bvadd64(s__state, 4294962896bv32) == 0bv32) && !(3bv32 == blastFlag))) || (((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && ~bvadd64(s__state, 4294962768bv32) == 0bv32) && 65535bv32 == ag_X) && !(3bv32 == blastFlag))) || (~bvadd64(s__state, 4294962912bv32) == 0bv32 && 1bv32 == blastFlag) - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: (((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32) - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: (((((((!(0bv32 == ~bvadd64(s__state, 4294963200bv32)) && 0bv32 == blastFlag) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962896bv32) == 0bv32) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((!(s__hit == 0bv32) && 0bv32 == ~bvadd64(s__s3__tmp__next_state___0, 4294967293bv32)) && 2bv32 == blastFlag) && ~bvadd64(s__state, 4294962944bv32) == 0bv32) || ((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && 65535bv32 == ag_X) && 4560bv32 == s__s3__tmp__next_state___0) && !(3bv32 == blastFlag)) && ~bvadd64(s__state, 4294962944bv32) == 0bv32) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 618]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: (((((((((!(0bv32 == ~bvadd64(s__state, 4294963200bv32)) && s__hit == 0bv32) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && 2bv32 == blastFlag) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) || (((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__s3__tmp__next_state___0, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (((((((0bv32 == blastFlag && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962896bv32) == 0bv32) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((((((((((!(s__hit == 0bv32) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && 2bv32 == blastFlag) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962896bv32) == 0bv32)) || ((((((((((((s__hit == 0bv32 && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag)) && !(0bv32 == ~bvadd64(s__state, 4294963200bv32))) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962864bv32) == 0bv32)) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((((((((((!(0bv32 == ~bvadd64(s__state, 4294963200bv32)) && s__hit == 0bv32) && !(5bv32 == blastFlag)) && 61087bv32 == ag_Y) && !(0bv32 == ~bvadd64(s__state, 4294963197bv32))) && !(~bvadd64(s__state, 4294962927bv32) == 0bv32)) && !(0bv32 == ~bvadd64(s__state, 4294950912bv32))) && !(~bvadd64(s__state, 4294955004bv32) == 0bv32)) && 65535bv32 == ag_X) && !(~bvadd64(s__state, 4294946816bv32) == 0bv32)) && !(~bvadd64(s__state, 4294962928bv32) == 0bv32)) && !(3bv32 == blastFlag) - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 0bv32 == blastFlag && ~bvadd64(s__state, 4294955004bv32) == 0bv32 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 126 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.6s, OverallIterations: 24, TraceHistogramMax: 22, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4339 SDtfs, 3751 SDslu, 4019 SDs, 0 SdLazy, 3734 SolverSat, 660 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10590 GetRequests, 10534 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10024occurred in iteration=21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 24 MinimizatonAttempts, 7174 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 272 NumberOfFragments, 1596 HoareAnnotationTreeSize, 23 FomulaSimplifications, 24889 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 23 FomulaSimplificationsInter, 18420 FormulaSimplificationTreeSizeReductionInter, 4.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 5310 NumberOfCodeBlocks, 5310 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 10572 ConstructedInterpolants, 0 QuantifiedInterpolants, 5023560 SizeOfPredicates, 24 NumberOfNonLiveVariables, 7315 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 48 InterpolantComputations, 42 PerfectInterpolantSequences, 43356/43460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...