./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3e737313822321e0eb735a05809c2d5347ec165 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:53,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:53,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:53,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:53,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:53,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:53,249 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:53,251 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:53,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:53,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:53,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:53,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:53,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:53,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:53,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:53,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:53,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:53,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:53,275 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:53,277 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:53,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:53,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:53,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:53,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:53,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:53,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:53,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:53,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:53,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:53,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:53,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:53,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:53,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:53,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:53,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:53,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:53,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:53,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:53,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:53,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:53,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:53,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:53,303 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:53,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:53,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:53,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:53,305 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:53,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:53,305 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:53,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:53,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:53,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:53,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:53,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:53,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:53,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:53,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:53,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:53,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:53,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:53,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:53,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:53,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:53,309 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer 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(__VERIFIER_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 -> b3e737313822321e0eb735a05809c2d5347ec165 [2019-10-22 08:58:53,334 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:53,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:53,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:53,348 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:53,349 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:53,349 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2019-10-22 08:58:53,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/data/58e291c20/2d91fdb37efe4ad1bb9e3871ef7f5831/FLAG98d0e5925 [2019-10-22 08:58:53,828 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:53,829 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/sv-benchmarks/c/pthread-atomic/read_write_lock-1.i [2019-10-22 08:58:53,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/data/58e291c20/2d91fdb37efe4ad1bb9e3871ef7f5831/FLAG98d0e5925 [2019-10-22 08:58:53,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/data/58e291c20/2d91fdb37efe4ad1bb9e3871ef7f5831 [2019-10-22 08:58:53,851 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:53,852 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:53,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:53,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:53,855 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:53,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:53" (1/1) ... [2019-10-22 08:58:53,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aa4e5a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:53, skipping insertion in model container [2019-10-22 08:58:53,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:53" (1/1) ... [2019-10-22 08:58:53,865 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:53,895 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:54,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:54,287 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:54,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:54,405 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:54,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54 WrapperNode [2019-10-22 08:58:54,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:54,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:54,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:54,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:54,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,432 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:54,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:54,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:54,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:54,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:54,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:54,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:54,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:54,472 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/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 [2019-10-22 08:58:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:58:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:58:54,520 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-10-22 08:58:54,520 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-10-22 08:58:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:58:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:58:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:54,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:54,521 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-10-22 08:58:54,521 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-10-22 08:58:54,523 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:58:54,658 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-10-22 08:58:54,660 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-10-22 08:58:54,812 INFO L1490 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-10-22 08:58:54,820 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:54,820 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 08:58:54,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:54 BoogieIcfgContainer [2019-10-22 08:58:54,821 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:54,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:54,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:54,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:54,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:53" (1/3) ... [2019-10-22 08:58:54,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64851313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:54, skipping insertion in model container [2019-10-22 08:58:54,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (2/3) ... [2019-10-22 08:58:54,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64851313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:54, skipping insertion in model container [2019-10-22 08:58:54,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:54" (3/3) ... [2019-10-22 08:58:54,829 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-10-22 08:58:54,860 WARN L315 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,860 WARN L315 ript$VariableManager]: TermVariabe |Thread2_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,861 WARN L315 ript$VariableManager]: TermVariabe Thread2_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,861 WARN L315 ript$VariableManager]: TermVariabe Thread2_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,861 WARN L315 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,861 WARN L315 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,862 WARN L315 ript$VariableManager]: TermVariabe Thread2_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,862 WARN L315 ript$VariableManager]: TermVariabe |Thread2_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,863 WARN L315 ript$VariableManager]: TermVariabe |Thread2_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,863 WARN L315 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,863 WARN L315 ript$VariableManager]: TermVariabe |Thread0_reader_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,863 WARN L315 ript$VariableManager]: TermVariabe Thread0_reader_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,863 WARN L315 ript$VariableManager]: TermVariabe Thread0_reader_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,864 WARN L315 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,864 WARN L315 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,864 WARN L315 ript$VariableManager]: TermVariabe Thread0_reader_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,864 WARN L315 ript$VariableManager]: TermVariabe |Thread0_reader_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,865 WARN L315 ript$VariableManager]: TermVariabe |Thread0_reader_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,865 WARN L315 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,865 WARN L315 ript$VariableManager]: TermVariabe |Thread1_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,865 WARN L315 ript$VariableManager]: TermVariabe Thread1_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,865 WARN L315 ript$VariableManager]: TermVariabe Thread1_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,866 WARN L315 ript$VariableManager]: TermVariabe |Thread1_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,866 WARN L315 ript$VariableManager]: TermVariabe |Thread1_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,866 WARN L315 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,866 WARN L315 ript$VariableManager]: TermVariabe |Thread3_writer_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,867 WARN L315 ript$VariableManager]: TermVariabe Thread3_writer_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,867 WARN L315 ript$VariableManager]: TermVariabe Thread3_writer_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,867 WARN L315 ript$VariableManager]: TermVariabe |Thread3_writer_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,868 WARN L315 ript$VariableManager]: TermVariabe |Thread3_writer_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:58:54,897 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:58:54,898 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:54,905 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-10-22 08:58:54,915 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-10-22 08:58:54,934 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:54,934 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:54,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:54,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:54,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:54,934 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:54,934 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:54,935 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:54,944 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 82 places, 91 transitions [2019-10-22 08:58:56,687 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 22596 states. [2019-10-22 08:58:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 22596 states. [2019-10-22 08:58:56,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-10-22 08:58:56,698 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:56,698 INFO L380 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] [2019-10-22 08:58:56,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:56,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:56,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1115830567, now seen corresponding path program 1 times [2019-10-22 08:58:56,719 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:56,719 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444015008] [2019-10-22 08:58:56,720 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:56,720 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:56,720 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:56,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:56,923 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444015008] [2019-10-22 08:58:56,925 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:56,926 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:58:56,926 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26934096] [2019-10-22 08:58:56,930 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:58:56,930 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:56,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:58:56,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:58:56,945 INFO L87 Difference]: Start difference. First operand 22596 states. Second operand 4 states. [2019-10-22 08:58:57,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:57,663 INFO L93 Difference]: Finished difference Result 53210 states and 199742 transitions. [2019-10-22 08:58:57,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:58:57,665 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2019-10-22 08:58:57,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:57,902 INFO L225 Difference]: With dead ends: 53210 [2019-10-22 08:58:57,903 INFO L226 Difference]: Without dead ends: 38180 [2019-10-22 08:58:57,905 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:58,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38180 states. [2019-10-22 08:58:59,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38180 to 20681. [2019-10-22 08:58:59,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20681 states. [2019-10-22 08:58:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 79025 transitions. [2019-10-22 08:58:59,131 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 79025 transitions. Word has length 23 [2019-10-22 08:58:59,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:59,132 INFO L462 AbstractCegarLoop]: Abstraction has 20681 states and 79025 transitions. [2019-10-22 08:58:59,132 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:58:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 79025 transitions. [2019-10-22 08:58:59,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:58:59,136 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:59,136 INFO L380 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, 1] [2019-10-22 08:58:59,136 INFO L410 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:59,137 INFO L82 PathProgramCache]: Analyzing trace with hash -505569408, now seen corresponding path program 1 times [2019-10-22 08:58:59,138 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:59,138 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332417620] [2019-10-22 08:58:59,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,138 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:59,138 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:59,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:59,192 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332417620] [2019-10-22 08:58:59,193 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:59,193 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:58:59,193 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349412935] [2019-10-22 08:58:59,194 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:58:59,194 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:59,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:58:59,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:58:59,195 INFO L87 Difference]: Start difference. First operand 20681 states and 79025 transitions. Second operand 3 states. [2019-10-22 08:58:59,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:59,364 INFO L93 Difference]: Finished difference Result 18941 states and 68442 transitions. [2019-10-22 08:58:59,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:58:59,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-10-22 08:58:59,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:59,423 INFO L225 Difference]: With dead ends: 18941 [2019-10-22 08:58:59,423 INFO L226 Difference]: Without dead ends: 18701 [2019-10-22 08:58:59,424 INFO L600 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 [2019-10-22 08:58:59,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18701 states. [2019-10-22 08:59:00,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18701 to 18701. [2019-10-22 08:59:00,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18701 states. [2019-10-22 08:59:00,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 67574 transitions. [2019-10-22 08:59:00,157 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 67574 transitions. Word has length 25 [2019-10-22 08:59:00,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:00,158 INFO L462 AbstractCegarLoop]: Abstraction has 18701 states and 67574 transitions. [2019-10-22 08:59:00,158 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:59:00,158 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 67574 transitions. [2019-10-22 08:59:00,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 08:59:00,160 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:00,160 INFO L380 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, 1] [2019-10-22 08:59:00,160 INFO L410 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:00,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:00,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1828922844, now seen corresponding path program 2 times [2019-10-22 08:59:00,161 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:00,161 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532754683] [2019-10-22 08:59:00,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:00,161 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:00,162 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:00,288 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532754683] [2019-10-22 08:59:00,289 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:00,289 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:59:00,290 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524638307] [2019-10-22 08:59:00,290 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:00,290 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:00,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:00,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:00,291 INFO L87 Difference]: Start difference. First operand 18701 states and 67574 transitions. Second operand 4 states. [2019-10-22 08:59:00,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:00,412 INFO L93 Difference]: Finished difference Result 17297 states and 57246 transitions. [2019-10-22 08:59:00,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:59:00,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2019-10-22 08:59:00,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:00,482 INFO L225 Difference]: With dead ends: 17297 [2019-10-22 08:59:00,483 INFO L226 Difference]: Without dead ends: 16721 [2019-10-22 08:59:00,483 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:00,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16721 states. [2019-10-22 08:59:00,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16721 to 12992. [2019-10-22 08:59:00,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12992 states. [2019-10-22 08:59:00,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12992 states to 12992 states and 43427 transitions. [2019-10-22 08:59:00,808 INFO L78 Accepts]: Start accepts. Automaton has 12992 states and 43427 transitions. Word has length 25 [2019-10-22 08:59:00,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:00,808 INFO L462 AbstractCegarLoop]: Abstraction has 12992 states and 43427 transitions. [2019-10-22 08:59:00,808 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:00,808 INFO L276 IsEmpty]: Start isEmpty. Operand 12992 states and 43427 transitions. [2019-10-22 08:59:00,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 08:59:00,811 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:00,811 INFO L380 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, 1, 1, 1, 1, 1] [2019-10-22 08:59:00,811 INFO L410 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:00,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:00,812 INFO L82 PathProgramCache]: Analyzing trace with hash 577314694, now seen corresponding path program 1 times [2019-10-22 08:59:00,812 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:00,812 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126366896] [2019-10-22 08:59:00,812 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:00,813 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:00,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:00,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:00,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126366896] [2019-10-22 08:59:00,867 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:00,867 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-22 08:59:00,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414080786] [2019-10-22 08:59:00,868 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 08:59:00,868 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:00,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 08:59:00,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 08:59:00,869 INFO L87 Difference]: Start difference. First operand 12992 states and 43427 transitions. Second operand 4 states. [2019-10-22 08:59:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:00,967 INFO L93 Difference]: Finished difference Result 14324 states and 47560 transitions. [2019-10-22 08:59:00,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:00,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-10-22 08:59:00,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:00,991 INFO L225 Difference]: With dead ends: 14324 [2019-10-22 08:59:00,992 INFO L226 Difference]: Without dead ends: 8831 [2019-10-22 08:59:00,992 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:01,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8831 states. [2019-10-22 08:59:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8831 to 7334. [2019-10-22 08:59:01,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7334 states. [2019-10-22 08:59:01,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7334 states to 7334 states and 23840 transitions. [2019-10-22 08:59:01,180 INFO L78 Accepts]: Start accepts. Automaton has 7334 states and 23840 transitions. Word has length 29 [2019-10-22 08:59:01,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:01,181 INFO L462 AbstractCegarLoop]: Abstraction has 7334 states and 23840 transitions. [2019-10-22 08:59:01,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 08:59:01,182 INFO L276 IsEmpty]: Start isEmpty. Operand 7334 states and 23840 transitions. [2019-10-22 08:59:01,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:59:01,188 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:01,188 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:01,189 INFO L410 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:01,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:01,189 INFO L82 PathProgramCache]: Analyzing trace with hash -496866286, now seen corresponding path program 1 times [2019-10-22 08:59:01,189 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:01,190 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951855731] [2019-10-22 08:59:01,191 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,191 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,192 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:01,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:01,299 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951855731] [2019-10-22 08:59:01,299 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:01,299 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:01,300 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258736712] [2019-10-22 08:59:01,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:01,301 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:01,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:01,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:01,301 INFO L87 Difference]: Start difference. First operand 7334 states and 23840 transitions. Second operand 5 states. [2019-10-22 08:59:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:01,703 INFO L93 Difference]: Finished difference Result 8558 states and 27434 transitions. [2019-10-22 08:59:01,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:01,704 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-22 08:59:01,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:01,725 INFO L225 Difference]: With dead ends: 8558 [2019-10-22 08:59:01,725 INFO L226 Difference]: Without dead ends: 7379 [2019-10-22 08:59:01,726 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7379 states. [2019-10-22 08:59:01,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7379 to 6803. [2019-10-22 08:59:01,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6803 states. [2019-10-22 08:59:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6803 states to 6803 states and 22284 transitions. [2019-10-22 08:59:01,889 INFO L78 Accepts]: Start accepts. Automaton has 6803 states and 22284 transitions. Word has length 37 [2019-10-22 08:59:01,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:01,889 INFO L462 AbstractCegarLoop]: Abstraction has 6803 states and 22284 transitions. [2019-10-22 08:59:01,889 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 6803 states and 22284 transitions. [2019-10-22 08:59:01,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 08:59:01,894 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:01,894 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:01,894 INFO L410 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:01,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:01,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1698947536, now seen corresponding path program 2 times [2019-10-22 08:59:01,895 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:01,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066958389] [2019-10-22 08:59:01,895 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,895 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:01,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:01,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:01,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:01,944 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066958389] [2019-10-22 08:59:01,944 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:01,944 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:59:01,944 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318095143] [2019-10-22 08:59:01,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:59:01,944 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:01,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:59:01,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:01,945 INFO L87 Difference]: Start difference. First operand 6803 states and 22284 transitions. Second operand 5 states. [2019-10-22 08:59:01,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:01,975 INFO L93 Difference]: Finished difference Result 1907 states and 5204 transitions. [2019-10-22 08:59:01,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 08:59:01,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 37 [2019-10-22 08:59:01,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:01,976 INFO L225 Difference]: With dead ends: 1907 [2019-10-22 08:59:01,976 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:59:01,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:59:01,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:59:01,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:59:01,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:59:01,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:59:01,977 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2019-10-22 08:59:01,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:01,977 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:01,977 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:59:01,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:01,978 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:59:01,980 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:59:01,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:01 BasicIcfg [2019-10-22 08:59:01,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:01,983 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:01,983 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:01,983 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:01,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:54" (3/4) ... [2019-10-22 08:59:01,987 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:59:01,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2019-10-22 08:59:01,994 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2019-10-22 08:59:01,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2019-10-22 08:59:01,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:59:02,035 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a5317bc5-5e85-4176-8578-7878b59e6852/bin/uautomizer/witness.graphml [2019-10-22 08:59:02,036 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:02,038 INFO L168 Benchmark]: Toolchain (without parser) took 8185.34 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 536.3 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 367.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:02,038 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:02,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 553.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:02,039 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:02,039 INFO L168 Benchmark]: Boogie Preprocessor took 20.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:02,039 INFO L168 Benchmark]: RCFGBuilder took 350.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:02,040 INFO L168 Benchmark]: TraceAbstraction took 7160.21 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 393.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.6 MB). Peak memory consumption was 363.2 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:02,040 INFO L168 Benchmark]: Witness Printer took 53.17 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:02,042 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 553.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -175.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.37 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 350.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7160.21 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 393.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.6 MB). Peak memory consumption was 363.2 MB. Max. memory is 11.5 GB. * Witness Printer took 53.17 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 697]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 697]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 697]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 3 error locations. Result: SAFE, OverallTime: 7.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 788 SDtfs, 618 SDslu, 898 SDs, 0 SdLazy, 154 SolverSat, 34 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22596occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 23301 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 176 NumberOfCodeBlocks, 176 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 10324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...