./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/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 3d5d738785469032c070cabc60204008ea544832 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:00:48,503 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:00:48,504 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:00:48,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:00:48,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:00:48,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:00:48,514 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:00:48,515 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:00:48,516 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:00:48,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:00:48,517 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:00:48,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:00:48,518 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:00:48,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:00:48,520 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:00:48,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:00:48,521 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:00:48,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:00:48,523 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:00:48,524 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:00:48,525 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:00:48,526 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:00:48,528 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:00:48,528 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:00:48,528 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:00:48,529 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:00:48,529 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:00:48,530 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:00:48,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:00:48,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:00:48,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:00:48,532 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:00:48,532 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:00:48,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:00:48,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:00:48,533 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:00:48,533 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 17:00:48,543 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:00:48,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:00:48,544 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:00:48,544 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:00:48,545 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 17:00:48,545 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 17:00:48,545 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 17:00:48,545 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:00:48,545 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:00:48,545 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:00:48,546 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:00:48,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:00:48,547 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:00:48,547 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/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 -> 3d5d738785469032c070cabc60204008ea544832 [2018-12-08 17:00:48,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:00:48,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:00:48,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:00:48,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:00:48,582 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:00:48,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-12-08 17:00:48,626 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/data/ecde0dec9/c8de61146c10433daaa22398f0e41e5e/FLAG7681e6cda [2018-12-08 17:00:49,085 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:00:49,086 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/sv-benchmarks/c/pthread-atomic/szymanski_true-unreach-call.i [2018-12-08 17:00:49,092 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/data/ecde0dec9/c8de61146c10433daaa22398f0e41e5e/FLAG7681e6cda [2018-12-08 17:00:49,101 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/data/ecde0dec9/c8de61146c10433daaa22398f0e41e5e [2018-12-08 17:00:49,103 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:00:49,104 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:00:49,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:00:49,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:00:49,106 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:00:49,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5b6929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49, skipping insertion in model container [2018-12-08 17:00:49,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:00:49,130 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:00:49,284 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:00:49,291 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:00:49,356 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:00:49,391 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:00:49,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49 WrapperNode [2018-12-08 17:00:49,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:00:49,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:00:49,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:00:49,392 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:00:49,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,417 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:00:49,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:00:49,417 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:00:49,417 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:00:49,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... [2018-12-08 17:00:49,433 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:00:49,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:00:49,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:00:49,434 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:00:49,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/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 [2018-12-08 17:00:49,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:00:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 17:00:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-12-08 17:00:49,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-12-08 17:00:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-08 17:00:49,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-08 17:00:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 17:00:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 17:00:49,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:00:49,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:00:49,468 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 17:00:49,621 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:00:49,621 INFO L280 CfgBuilder]: Removed 12 assue(true) statements. [2018-12-08 17:00:49,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:00:49 BoogieIcfgContainer [2018-12-08 17:00:49,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:00:49,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:00:49,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:00:49,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:00:49,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:00:49" (1/3) ... [2018-12-08 17:00:49,624 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465ed499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:00:49, skipping insertion in model container [2018-12-08 17:00:49,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:00:49" (2/3) ... [2018-12-08 17:00:49,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465ed499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:00:49, skipping insertion in model container [2018-12-08 17:00:49,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:00:49" (3/3) ... [2018-12-08 17:00:49,626 INFO L112 eAbstractionObserver]: Analyzing ICFG szymanski_true-unreach-call.i [2018-12-08 17:00:49,646 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,646 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,646 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,646 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,647 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,647 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,648 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,648 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,648 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,648 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,649 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,649 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 17:00:49,660 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 17:00:49,660 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:00:49,665 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-08 17:00:49,675 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-08 17:00:49,689 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:00:49,690 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:00:49,690 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:00:49,690 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:00:49,690 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:00:49,690 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:00:49,690 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:00:49,690 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:00:49,691 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:00:49,696 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 65places, 84 transitions [2018-12-08 17:00:49,726 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1154 states. [2018-12-08 17:00:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states. [2018-12-08 17:00:49,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 17:00:49,734 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:49,735 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:00:49,736 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:49,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:49,740 INFO L82 PathProgramCache]: Analyzing trace with hash -686332095, now seen corresponding path program 1 times [2018-12-08 17:00:49,741 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:49,741 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:49,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:49,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:00:49,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:49,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:49,826 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:49,826 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 17:00:49,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 17:00:49,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 17:00:49,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:00:49,839 INFO L87 Difference]: Start difference. First operand 1154 states. Second operand 2 states. [2018-12-08 17:00:49,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:49,874 INFO L93 Difference]: Finished difference Result 1154 states and 3405 transitions. [2018-12-08 17:00:49,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 17:00:49,875 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-08 17:00:49,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:49,892 INFO L225 Difference]: With dead ends: 1154 [2018-12-08 17:00:49,893 INFO L226 Difference]: Without dead ends: 1040 [2018-12-08 17:00:49,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:00:49,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1040 states. [2018-12-08 17:00:49,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1040 to 1040. [2018-12-08 17:00:49,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1040 states. [2018-12-08 17:00:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1040 states to 1040 states and 3099 transitions. [2018-12-08 17:00:49,954 INFO L78 Accepts]: Start accepts. Automaton has 1040 states and 3099 transitions. Word has length 21 [2018-12-08 17:00:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:49,954 INFO L480 AbstractCegarLoop]: Abstraction has 1040 states and 3099 transitions. [2018-12-08 17:00:49,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 17:00:49,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1040 states and 3099 transitions. [2018-12-08 17:00:49,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-08 17:00:49,955 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:49,955 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:00:49,955 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:49,955 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:49,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1056508031, now seen corresponding path program 1 times [2018-12-08 17:00:49,955 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:49,956 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:49,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:49,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:00:49,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:49,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:49,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:49,992 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:49,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:00:49,993 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:00:49,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:00:49,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:49,993 INFO L87 Difference]: Start difference. First operand 1040 states and 3099 transitions. Second operand 3 states. [2018-12-08 17:00:50,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:50,016 INFO L93 Difference]: Finished difference Result 1055 states and 3072 transitions. [2018-12-08 17:00:50,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:00:50,016 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-08 17:00:50,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:50,019 INFO L225 Difference]: With dead ends: 1055 [2018-12-08 17:00:50,019 INFO L226 Difference]: Without dead ends: 857 [2018-12-08 17:00:50,020 INFO L631 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 [2018-12-08 17:00:50,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 857 states. [2018-12-08 17:00:50,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 857 to 803. [2018-12-08 17:00:50,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-12-08 17:00:50,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 2362 transitions. [2018-12-08 17:00:50,033 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 2362 transitions. Word has length 21 [2018-12-08 17:00:50,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:50,033 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 2362 transitions. [2018-12-08 17:00:50,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:00:50,034 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 2362 transitions. [2018-12-08 17:00:50,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-08 17:00:50,035 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:50,035 INFO L402 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] [2018-12-08 17:00:50,035 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:50,035 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:50,035 INFO L82 PathProgramCache]: Analyzing trace with hash 843213921, now seen corresponding path program 1 times [2018-12-08 17:00:50,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:50,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:50,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:00:50,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:50,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:50,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:50,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:00:50,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:00:50,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:00:50,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,062 INFO L87 Difference]: Start difference. First operand 803 states and 2362 transitions. Second operand 3 states. [2018-12-08 17:00:50,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:50,080 INFO L93 Difference]: Finished difference Result 743 states and 2155 transitions. [2018-12-08 17:00:50,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:00:50,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2018-12-08 17:00:50,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:50,083 INFO L225 Difference]: With dead ends: 743 [2018-12-08 17:00:50,084 INFO L226 Difference]: Without dead ends: 530 [2018-12-08 17:00:50,084 INFO L631 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 [2018-12-08 17:00:50,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-12-08 17:00:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 530. [2018-12-08 17:00:50,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2018-12-08 17:00:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 1532 transitions. [2018-12-08 17:00:50,096 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 1532 transitions. Word has length 24 [2018-12-08 17:00:50,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:50,097 INFO L480 AbstractCegarLoop]: Abstraction has 530 states and 1532 transitions. [2018-12-08 17:00:50,097 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:00:50,097 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 1532 transitions. [2018-12-08 17:00:50,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 17:00:50,099 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:50,099 INFO L402 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] [2018-12-08 17:00:50,099 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:50,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:50,099 INFO L82 PathProgramCache]: Analyzing trace with hash 443195090, now seen corresponding path program 1 times [2018-12-08 17:00:50,100 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:50,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:50,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:00:50,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:50,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:50,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:00:50,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:00:50,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:00:50,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,137 INFO L87 Difference]: Start difference. First operand 530 states and 1532 transitions. Second operand 3 states. [2018-12-08 17:00:50,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:50,172 INFO L93 Difference]: Finished difference Result 578 states and 1633 transitions. [2018-12-08 17:00:50,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:00:50,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-12-08 17:00:50,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:50,174 INFO L225 Difference]: With dead ends: 578 [2018-12-08 17:00:50,174 INFO L226 Difference]: Without dead ends: 464 [2018-12-08 17:00:50,174 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2018-12-08 17:00:50,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 464. [2018-12-08 17:00:50,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2018-12-08 17:00:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1269 transitions. [2018-12-08 17:00:50,182 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1269 transitions. Word has length 32 [2018-12-08 17:00:50,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:50,182 INFO L480 AbstractCegarLoop]: Abstraction has 464 states and 1269 transitions. [2018-12-08 17:00:50,182 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:00:50,182 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1269 transitions. [2018-12-08 17:00:50,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 17:00:50,183 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:50,183 INFO L402 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] [2018-12-08 17:00:50,183 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:50,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:50,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1467083516, now seen corresponding path program 2 times [2018-12-08 17:00:50,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:50,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:50,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:00:50,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:50,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:50,202 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:50,202 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:00:50,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:00:50,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:00:50,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,203 INFO L87 Difference]: Start difference. First operand 464 states and 1269 transitions. Second operand 3 states. [2018-12-08 17:00:50,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:50,238 INFO L93 Difference]: Finished difference Result 509 states and 1348 transitions. [2018-12-08 17:00:50,238 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:00:50,239 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-12-08 17:00:50,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:50,241 INFO L225 Difference]: With dead ends: 509 [2018-12-08 17:00:50,241 INFO L226 Difference]: Without dead ends: 482 [2018-12-08 17:00:50,241 INFO L631 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 [2018-12-08 17:00:50,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2018-12-08 17:00:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 464. [2018-12-08 17:00:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 464 states. [2018-12-08 17:00:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1224 transitions. [2018-12-08 17:00:50,253 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1224 transitions. Word has length 32 [2018-12-08 17:00:50,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:50,253 INFO L480 AbstractCegarLoop]: Abstraction has 464 states and 1224 transitions. [2018-12-08 17:00:50,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:00:50,253 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1224 transitions. [2018-12-08 17:00:50,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 17:00:50,255 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:50,255 INFO L402 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] [2018-12-08 17:00:50,255 INFO L423 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:50,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:50,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1239074380, now seen corresponding path program 1 times [2018-12-08 17:00:50,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:50,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:50,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,258 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 17:00:50,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:50,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:50,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:50,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:00:50,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:00:50,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:00:50,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,283 INFO L87 Difference]: Start difference. First operand 464 states and 1224 transitions. Second operand 3 states. [2018-12-08 17:00:50,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:50,313 INFO L93 Difference]: Finished difference Result 434 states and 1105 transitions. [2018-12-08 17:00:50,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:00:50,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-12-08 17:00:50,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:50,314 INFO L225 Difference]: With dead ends: 434 [2018-12-08 17:00:50,314 INFO L226 Difference]: Without dead ends: 434 [2018-12-08 17:00:50,315 INFO L631 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 [2018-12-08 17:00:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-12-08 17:00:50,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-12-08 17:00:50,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-12-08 17:00:50,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 1105 transitions. [2018-12-08 17:00:50,325 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 1105 transitions. Word has length 32 [2018-12-08 17:00:50,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:50,325 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 1105 transitions. [2018-12-08 17:00:50,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:00:50,326 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 1105 transitions. [2018-12-08 17:00:50,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 17:00:50,327 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:00:50,327 INFO L402 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] [2018-12-08 17:00:50,327 INFO L423 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:00:50,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:00:50,328 INFO L82 PathProgramCache]: Analyzing trace with hash 120469324, now seen corresponding path program 2 times [2018-12-08 17:00:50,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 17:00:50,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 17:00:50,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:00:50,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:00:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:00:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:00:50,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:00:50,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:00:50,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:00:50,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:00:50,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,355 INFO L87 Difference]: Start difference. First operand 434 states and 1105 transitions. Second operand 3 states. [2018-12-08 17:00:50,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:00:50,378 INFO L93 Difference]: Finished difference Result 305 states and 788 transitions. [2018-12-08 17:00:50,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:00:50,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-12-08 17:00:50,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:00:50,379 INFO L225 Difference]: With dead ends: 305 [2018-12-08 17:00:50,379 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 17:00:50,379 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:00:50,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 17:00:50,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 17:00:50,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 17:00:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 17:00:50,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-12-08 17:00:50,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:00:50,380 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 17:00:50,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:00:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 17:00:50,380 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 17:00:50,383 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 17:00:50,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:00:50 BasicIcfg [2018-12-08 17:00:50,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:00:50,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:00:50,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:00:50,385 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:00:50,385 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:00:49" (3/4) ... [2018-12-08 17:00:50,389 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 17:00:50,395 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2018-12-08 17:00:50,395 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-12-08 17:00:50,398 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-08 17:00:50,398 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-08 17:00:50,429 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1df156d5-5cd9-4510-a1aa-8d8f4cab2b07/bin-2019/uautomizer/witness.graphml [2018-12-08 17:00:50,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:00:50,430 INFO L168 Benchmark]: Toolchain (without parser) took 1326.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 951.7 MB in the beginning and 904.3 MB in the end (delta: 47.4 MB). Peak memory consumption was 145.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:00:50,431 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:00:50,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -130.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:00:50,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.57 ms. Allocated memory is still 1.1 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. [2018-12-08 17:00:50,432 INFO L168 Benchmark]: Boogie Preprocessor took 16.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:00:50,432 INFO L168 Benchmark]: RCFGBuilder took 187.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:00:50,433 INFO L168 Benchmark]: TraceAbstraction took 762.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 909.7 MB in the end (delta: 141.8 MB). Peak memory consumption was 141.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:00:50,433 INFO L168 Benchmark]: Witness Printer took 44.46 ms. Allocated memory is still 1.1 GB. Free memory was 909.7 MB in the beginning and 904.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:00:50,436 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 287.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -130.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.57 ms. Allocated memory is still 1.1 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 16.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 187.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 762.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 909.7 MB in the end (delta: 141.8 MB). Peak memory consumption was 141.8 MB. Max. memory is 11.5 GB. * Witness Printer took 44.46 ms. Allocated memory is still 1.1 GB. Free memory was 909.7 MB in the beginning and 904.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 648]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 101 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 525 SDtfs, 187 SDslu, 225 SDs, 0 SdLazy, 82 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1154occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 72 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 187 ConstructedInterpolants, 0 QuantifiedInterpolants, 6313 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...