./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/16_peterson_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_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/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 a6a89f9f46b1412575f1266b3402a81524b5e7b5 ....................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 13:03:00,487 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 13:03:00,488 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 13:03:00,497 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 13:03:00,497 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 13:03:00,498 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 13:03:00,499 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 13:03:00,500 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 13:03:00,501 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 13:03:00,501 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 13:03:00,502 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 13:03:00,502 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 13:03:00,503 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 13:03:00,504 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 13:03:00,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 13:03:00,505 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 13:03:00,505 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 13:03:00,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 13:03:00,508 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 13:03:00,509 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 13:03:00,510 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 13:03:00,511 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 13:03:00,512 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 13:03:00,512 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 13:03:00,512 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 13:03:00,513 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 13:03:00,514 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 13:03:00,514 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 13:03:00,515 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 13:03:00,516 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 13:03:00,516 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 13:03:00,516 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 13:03:00,516 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 13:03:00,516 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 13:03:00,517 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 13:03:00,517 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 13:03:00,518 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-09 13:03:00,527 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 13:03:00,528 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 13:03:00,528 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 13:03:00,528 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 13:03:00,529 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 13:03:00,529 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 13:03:00,529 INFO L133 SettingsManager]: * Use SBE=true [2018-12-09 13:03:00,530 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 13:03:00,530 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 13:03:00,530 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 13:03:00,530 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 13:03:00,530 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 13:03:00,530 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 13:03:00,530 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 13:03:00,531 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 13:03:00,531 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 13:03:00,531 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 13:03:00,531 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 13:03:00,531 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 13:03:00,531 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 13:03:00,531 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 13:03:00,532 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 13:03:00,532 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 13:03:00,532 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 13:03:00,532 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 13:03:00,532 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 13:03:00,532 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 13:03:00,532 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-09 13:03:00,533 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 13:03:00,533 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 13:03:00,533 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_2b970171-c839-4613-b5f1-48267d7a5e9f/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 -> a6a89f9f46b1412575f1266b3402a81524b5e7b5 [2018-12-09 13:03:00,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 13:03:00,564 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 13:03:00,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 13:03:00,567 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 13:03:00,567 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 13:03:00,567 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-12-09 13:03:00,603 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/data/e885a71df/1ea403d86aa54cb1a841f2a64998e32a/FLAG4faebabba [2018-12-09 13:03:00,910 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 13:03:00,910 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-12-09 13:03:00,917 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/data/e885a71df/1ea403d86aa54cb1a841f2a64998e32a/FLAG4faebabba [2018-12-09 13:03:00,926 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/data/e885a71df/1ea403d86aa54cb1a841f2a64998e32a [2018-12-09 13:03:00,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 13:03:00,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 13:03:00,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 13:03:00,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 13:03:00,931 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 13:03:00,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:03:00" (1/1) ... [2018-12-09 13:03:00,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ceaa519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:00, skipping insertion in model container [2018-12-09 13:03:00,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 01:03:00" (1/1) ... [2018-12-09 13:03:00,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 13:03:00,955 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 13:03:01,103 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:03:01,142 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 13:03:01,167 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 13:03:01,194 INFO L195 MainTranslator]: Completed translation [2018-12-09 13:03:01,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01 WrapperNode [2018-12-09 13:03:01,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 13:03:01,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 13:03:01,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 13:03:01,195 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 13:03:01,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 13:03:01,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 13:03:01,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 13:03:01,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 13:03:01,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,235 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... [2018-12-09 13:03:01,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 13:03:01,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 13:03:01,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 13:03:01,236 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 13:03:01,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/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 [2018-12-09 13:03:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 13:03:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-09 13:03:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-09 13:03:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 13:03:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 13:03:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 13:03:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 13:03:01,271 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-09 13:03:01,407 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 13:03:01,407 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 13:03:01,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:03:01 BoogieIcfgContainer [2018-12-09 13:03:01,408 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 13:03:01,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 13:03:01,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 13:03:01,410 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 13:03:01,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 01:03:00" (1/3) ... [2018-12-09 13:03:01,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fb9842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:03:01, skipping insertion in model container [2018-12-09 13:03:01,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 01:03:01" (2/3) ... [2018-12-09 13:03:01,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fb9842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 01:03:01, skipping insertion in model container [2018-12-09 13:03:01,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:03:01" (3/3) ... [2018-12-09 13:03:01,413 INFO L112 eAbstractionObserver]: Analyzing ICFG 16_peterson_true-unreach-call.i [2018-12-09 13:03:01,435 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:03:01,435 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:03:01,435 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:03:01,436 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:03:01,436 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:03:01,436 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 13:03:01,440 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-09 13:03:01,440 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 13:03:01,444 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-09 13:03:01,454 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-09 13:03:01,468 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 13:03:01,468 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 13:03:01,468 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 13:03:01,469 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 13:03:01,469 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 13:03:01,469 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 13:03:01,469 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 13:03:01,469 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 13:03:01,469 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 13:03:01,474 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45places, 49 transitions [2018-12-09 13:03:01,487 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 275 states. [2018-12-09 13:03:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2018-12-09 13:03:01,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 13:03:01,493 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:03:01,494 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:03:01,495 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:03:01,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:03:01,498 INFO L82 PathProgramCache]: Analyzing trace with hash 929769553, now seen corresponding path program 1 times [2018-12-09 13:03:01,499 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:03:01,500 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:03:01,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:03:01,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:03:01,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:03:01,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:03:01,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 13:03:01,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 13:03:01,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 13:03:01,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 13:03:01,591 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 2 states. [2018-12-09 13:03:01,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:03:01,606 INFO L93 Difference]: Finished difference Result 275 states and 539 transitions. [2018-12-09 13:03:01,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 13:03:01,607 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 13:03:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:03:01,615 INFO L225 Difference]: With dead ends: 275 [2018-12-09 13:03:01,615 INFO L226 Difference]: Without dead ends: 235 [2018-12-09 13:03:01,616 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 [2018-12-09 13:03:01,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-12-09 13:03:01,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2018-12-09 13:03:01,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-12-09 13:03:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 459 transitions. [2018-12-09 13:03:01,644 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 459 transitions. Word has length 18 [2018-12-09 13:03:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:03:01,645 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 459 transitions. [2018-12-09 13:03:01,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 13:03:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 459 transitions. [2018-12-09 13:03:01,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 13:03:01,645 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:03:01,645 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 13:03:01,646 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:03:01,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:03:01,646 INFO L82 PathProgramCache]: Analyzing trace with hash 929799344, now seen corresponding path program 1 times [2018-12-09 13:03:01,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:03:01,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:03:01,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:03:01,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:03:01,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:03:01,680 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:03:01,680 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 13:03:01,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:03:01,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:03:01,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:03:01,681 INFO L87 Difference]: Start difference. First operand 235 states and 459 transitions. Second operand 3 states. [2018-12-09 13:03:01,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:03:01,702 INFO L93 Difference]: Finished difference Result 242 states and 452 transitions. [2018-12-09 13:03:01,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:03:01,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-09 13:03:01,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:03:01,703 INFO L225 Difference]: With dead ends: 242 [2018-12-09 13:03:01,703 INFO L226 Difference]: Without dead ends: 182 [2018-12-09 13:03:01,704 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 [2018-12-09 13:03:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-12-09 13:03:01,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 170. [2018-12-09 13:03:01,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-12-09 13:03:01,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 316 transitions. [2018-12-09 13:03:01,710 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 316 transitions. Word has length 18 [2018-12-09 13:03:01,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:03:01,710 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 316 transitions. [2018-12-09 13:03:01,710 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:03:01,710 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 316 transitions. [2018-12-09 13:03:01,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 13:03:01,711 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:03:01,711 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] [2018-12-09 13:03:01,711 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:03:01,711 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:03:01,711 INFO L82 PathProgramCache]: Analyzing trace with hash 145549379, now seen corresponding path program 1 times [2018-12-09 13:03:01,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:03:01,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:03:01,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,714 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:03:01,714 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:03:01,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:03:01,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:03:01,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 13:03:01,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 13:03:01,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 13:03:01,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 13:03:01,733 INFO L87 Difference]: Start difference. First operand 170 states and 316 transitions. Second operand 3 states. [2018-12-09 13:03:01,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:03:01,743 INFO L93 Difference]: Finished difference Result 158 states and 284 transitions. [2018-12-09 13:03:01,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 13:03:01,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-12-09 13:03:01,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:03:01,743 INFO L225 Difference]: With dead ends: 158 [2018-12-09 13:03:01,744 INFO L226 Difference]: Without dead ends: 118 [2018-12-09 13:03:01,744 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 [2018-12-09 13:03:01,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-09 13:03:01,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-09 13:03:01,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-09 13:03:01,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 205 transitions. [2018-12-09 13:03:01,747 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 205 transitions. Word has length 22 [2018-12-09 13:03:01,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:03:01,747 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 205 transitions. [2018-12-09 13:03:01,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 13:03:01,747 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 205 transitions. [2018-12-09 13:03:01,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 13:03:01,748 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:03:01,748 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] [2018-12-09 13:03:01,748 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:03:01,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:03:01,748 INFO L82 PathProgramCache]: Analyzing trace with hash 2057995240, now seen corresponding path program 1 times [2018-12-09 13:03:01,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:03:01,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:03:01,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:03:01,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:03:01,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:03:01,775 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:03:01,775 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 13:03:01,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 13:03:01,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 13:03:01,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:03:01,776 INFO L87 Difference]: Start difference. First operand 118 states and 205 transitions. Second operand 4 states. [2018-12-09 13:03:01,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:03:01,796 INFO L93 Difference]: Finished difference Result 124 states and 216 transitions. [2018-12-09 13:03:01,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 13:03:01,796 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-12-09 13:03:01,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:03:01,796 INFO L225 Difference]: With dead ends: 124 [2018-12-09 13:03:01,797 INFO L226 Difference]: Without dead ends: 100 [2018-12-09 13:03:01,797 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:03:01,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-09 13:03:01,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-09 13:03:01,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-09 13:03:01,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 159 transitions. [2018-12-09 13:03:01,800 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 159 transitions. Word has length 27 [2018-12-09 13:03:01,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:03:01,800 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 159 transitions. [2018-12-09 13:03:01,800 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 13:03:01,800 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 159 transitions. [2018-12-09 13:03:01,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 13:03:01,800 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 13:03:01,801 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] [2018-12-09 13:03:01,801 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 13:03:01,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 13:03:01,801 INFO L82 PathProgramCache]: Analyzing trace with hash 1029590326, now seen corresponding path program 2 times [2018-12-09 13:03:01,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-09 13:03:01,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-09 13:03:01,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 13:03:01,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 13:03:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 13:03:01,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 13:03:01,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 13:03:01,827 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 13:03:01,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 13:03:01,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 13:03:01,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:03:01,828 INFO L87 Difference]: Start difference. First operand 100 states and 159 transitions. Second operand 4 states. [2018-12-09 13:03:01,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 13:03:01,836 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2018-12-09 13:03:01,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 13:03:01,836 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-12-09 13:03:01,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 13:03:01,837 INFO L225 Difference]: With dead ends: 47 [2018-12-09 13:03:01,837 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 13:03:01,837 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-09 13:03:01,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 13:03:01,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 13:03:01,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 13:03:01,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 13:03:01,838 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-09 13:03:01,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 13:03:01,838 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 13:03:01,838 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 13:03:01,838 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 13:03:01,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 13:03:01,840 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-09 13:03:01,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 01:03:01 BasicIcfg [2018-12-09 13:03:01,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 13:03:01,841 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 13:03:01,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 13:03:01,842 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 13:03:01,842 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 01:03:01" (3/4) ... [2018-12-09 13:03:01,845 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 13:03:01,849 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-12-09 13:03:01,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 13:03:01,852 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 13:03:01,879 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_2b970171-c839-4613-b5f1-48267d7a5e9f/bin-2019/uautomizer/witness.graphml [2018-12-09 13:03:01,879 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 13:03:01,880 INFO L168 Benchmark]: Toolchain (without parser) took 952.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.3 MB in the beginning and 1.0 GB in the end (delta: -90.2 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2018-12-09 13:03:01,881 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 971.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 13:03:01,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2018-12-09 13:03:01,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.61 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. [2018-12-09 13:03:01,882 INFO L168 Benchmark]: Boogie Preprocessor took 14.88 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. [2018-12-09 13:03:01,883 INFO L168 Benchmark]: RCFGBuilder took 171.73 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2018-12-09 13:03:01,883 INFO L168 Benchmark]: TraceAbstraction took 433.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. [2018-12-09 13:03:01,883 INFO L168 Benchmark]: Witness Printer took 38.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 13:03:01,886 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 971.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.61 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. * Boogie Preprocessor took 14.88 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 171.73 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: 24.5 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 433.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.6 MB). Peak memory consumption was 62.6 MB. Max. memory is 11.5 GB. * Witness Printer took 38.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 643]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 652]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 643]: 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 3 procedures, 57 locations, 3 error locations. SAFE Result, 0.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 235 SDtfs, 88 SDslu, 116 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=275occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 3539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...