./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_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/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_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/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 [2018-12-02 02:12:07,289 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:12:07,290 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:12:07,296 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:12:07,296 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:12:07,297 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:12:07,297 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:12:07,298 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:12:07,299 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:12:07,300 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:12:07,300 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:12:07,300 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:12:07,301 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:12:07,301 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:12:07,302 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:12:07,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:12:07,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:12:07,304 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:12:07,305 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:12:07,305 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:12:07,306 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:12:07,307 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:12:07,308 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:12:07,308 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:12:07,308 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:12:07,308 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:12:07,309 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:12:07,309 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:12:07,310 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:12:07,310 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:12:07,311 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:12:07,311 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:12:07,311 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:12:07,311 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:12:07,312 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:12:07,312 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:12:07,312 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 02:12:07,319 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:12:07,319 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:12:07,320 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 02:12:07,320 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 02:12:07,320 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:12:07,320 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:12:07,320 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 02:12:07,321 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:12:07,321 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 02:12:07,322 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:12:07,322 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 02:12:07,322 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 02:12:07,323 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 02:12:07,323 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 02:12:07,323 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_e5230888-b502-42fc-b435-65c5e5b6b538/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 [2018-12-02 02:12:07,340 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:12:07,347 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:12:07,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:12:07,349 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:12:07,349 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:12:07,350 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-12-02 02:12:07,384 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/data/217a81ae8/8afabf87ea164e8aaaef3b079a278ad8/FLAG3241fd102 [2018-12-02 02:12:07,880 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:12:07,880 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/sv-benchmarks/c/pthread-ext/16_peterson_true-unreach-call.i [2018-12-02 02:12:07,885 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/data/217a81ae8/8afabf87ea164e8aaaef3b079a278ad8/FLAG3241fd102 [2018-12-02 02:12:08,368 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/data/217a81ae8/8afabf87ea164e8aaaef3b079a278ad8 [2018-12-02 02:12:08,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:12:08,371 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:12:08,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:12:08,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:12:08,373 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:12:08,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52fe4f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08, skipping insertion in model container [2018-12-02 02:12:08,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:12:08,397 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:12:08,548 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:12:08,555 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:12:08,624 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:12:08,655 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:12:08,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08 WrapperNode [2018-12-02 02:12:08,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:12:08,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:12:08,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:12:08,656 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:12:08,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:12:08,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:12:08,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:12:08,685 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:12:08,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... [2018-12-02 02:12:08,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:12:08,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:12:08,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:12:08,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:12:08,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/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 [2018-12-02 02:12:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 02:12:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-02 02:12:08,740 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-02 02:12:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 02:12:08,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 02:12:08,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:12:08,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:12:08,742 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-02 02:12:08,876 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:12:08,876 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-02 02:12:08,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:08 BoogieIcfgContainer [2018-12-02 02:12:08,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:12:08,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 02:12:08,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 02:12:08,879 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 02:12:08,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:12:08" (1/3) ... [2018-12-02 02:12:08,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7497df53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:08, skipping insertion in model container [2018-12-02 02:12:08,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:12:08" (2/3) ... [2018-12-02 02:12:08,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7497df53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:12:08, skipping insertion in model container [2018-12-02 02:12:08,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:08" (3/3) ... [2018-12-02 02:12:08,881 INFO L112 eAbstractionObserver]: Analyzing ICFG 16_peterson_true-unreach-call.i [2018-12-02 02:12:08,899 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:12:08,899 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:12:08,899 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:12:08,899 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:12:08,899 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:12:08,900 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:12:08,904 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-02 02:12:08,904 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 02:12:08,909 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-02 02:12:08,919 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-02 02:12:08,934 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 02:12:08,935 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 02:12:08,935 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 02:12:08,935 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 02:12:08,935 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:12:08,935 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:12:08,935 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 02:12:08,935 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:12:08,935 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 02:12:08,941 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45places, 49 transitions [2018-12-02 02:12:08,955 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 275 states. [2018-12-02 02:12:08,956 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2018-12-02 02:12:08,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 02:12:08,961 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:08,962 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:12:08,963 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:08,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:08,967 INFO L82 PathProgramCache]: Analyzing trace with hash 929769553, now seen corresponding path program 1 times [2018-12-02 02:12:08,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:12:08,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:12:09,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:09,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:09,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:12:09,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:12:09,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 02:12:09,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 02:12:09,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 02:12:09,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 02:12:09,064 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 2 states. [2018-12-02 02:12:09,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:09,079 INFO L93 Difference]: Finished difference Result 275 states and 539 transitions. [2018-12-02 02:12:09,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 02:12:09,080 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-02 02:12:09,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:09,088 INFO L225 Difference]: With dead ends: 275 [2018-12-02 02:12:09,088 INFO L226 Difference]: Without dead ends: 235 [2018-12-02 02:12:09,089 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 [2018-12-02 02:12:09,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2018-12-02 02:12:09,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2018-12-02 02:12:09,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-12-02 02:12:09,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 459 transitions. [2018-12-02 02:12:09,119 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 459 transitions. Word has length 18 [2018-12-02 02:12:09,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:09,119 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 459 transitions. [2018-12-02 02:12:09,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 02:12:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 459 transitions. [2018-12-02 02:12:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-02 02:12:09,120 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:09,120 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:12:09,120 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:09,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:09,120 INFO L82 PathProgramCache]: Analyzing trace with hash 929799344, now seen corresponding path program 1 times [2018-12-02 02:12:09,120 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:12:09,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:12:09,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:09,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:09,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:12:09,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:12:09,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 02:12:09,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 02:12:09,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 02:12:09,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 02:12:09,157 INFO L87 Difference]: Start difference. First operand 235 states and 459 transitions. Second operand 3 states. [2018-12-02 02:12:09,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:09,183 INFO L93 Difference]: Finished difference Result 242 states and 452 transitions. [2018-12-02 02:12:09,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 02:12:09,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-12-02 02:12:09,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:09,184 INFO L225 Difference]: With dead ends: 242 [2018-12-02 02:12:09,184 INFO L226 Difference]: Without dead ends: 182 [2018-12-02 02:12:09,184 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 [2018-12-02 02:12:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-12-02 02:12:09,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 170. [2018-12-02 02:12:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-12-02 02:12:09,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 316 transitions. [2018-12-02 02:12:09,190 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 316 transitions. Word has length 18 [2018-12-02 02:12:09,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:09,190 INFO L480 AbstractCegarLoop]: Abstraction has 170 states and 316 transitions. [2018-12-02 02:12:09,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 02:12:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 316 transitions. [2018-12-02 02:12:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 02:12:09,191 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:09,191 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] [2018-12-02 02:12:09,191 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:09,192 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:09,192 INFO L82 PathProgramCache]: Analyzing trace with hash 145549379, now seen corresponding path program 1 times [2018-12-02 02:12:09,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:12:09,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:12:09,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:09,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:09,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:12:09,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:12:09,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 02:12:09,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 02:12:09,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 02:12:09,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 02:12:09,220 INFO L87 Difference]: Start difference. First operand 170 states and 316 transitions. Second operand 3 states. [2018-12-02 02:12:09,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:09,230 INFO L93 Difference]: Finished difference Result 158 states and 284 transitions. [2018-12-02 02:12:09,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 02:12:09,230 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-12-02 02:12:09,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:09,230 INFO L225 Difference]: With dead ends: 158 [2018-12-02 02:12:09,231 INFO L226 Difference]: Without dead ends: 118 [2018-12-02 02:12:09,231 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 [2018-12-02 02:12:09,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-02 02:12:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-02 02:12:09,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-02 02:12:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 205 transitions. [2018-12-02 02:12:09,234 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 205 transitions. Word has length 22 [2018-12-02 02:12:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:09,234 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 205 transitions. [2018-12-02 02:12:09,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 02:12:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 205 transitions. [2018-12-02 02:12:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 02:12:09,235 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:09,235 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] [2018-12-02 02:12:09,235 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:09,235 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:09,236 INFO L82 PathProgramCache]: Analyzing trace with hash 2057995240, now seen corresponding path program 1 times [2018-12-02 02:12:09,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:12:09,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:12:09,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:09,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:12:09,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:12:09,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 02:12:09,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 02:12:09,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 02:12:09,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 02:12:09,272 INFO L87 Difference]: Start difference. First operand 118 states and 205 transitions. Second operand 4 states. [2018-12-02 02:12:09,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:09,287 INFO L93 Difference]: Finished difference Result 124 states and 216 transitions. [2018-12-02 02:12:09,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 02:12:09,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-12-02 02:12:09,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:09,288 INFO L225 Difference]: With dead ends: 124 [2018-12-02 02:12:09,288 INFO L226 Difference]: Without dead ends: 100 [2018-12-02 02:12:09,288 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 [2018-12-02 02:12:09,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-02 02:12:09,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-02 02:12:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-02 02:12:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 159 transitions. [2018-12-02 02:12:09,291 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 159 transitions. Word has length 27 [2018-12-02 02:12:09,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:09,291 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 159 transitions. [2018-12-02 02:12:09,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 02:12:09,292 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 159 transitions. [2018-12-02 02:12:09,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-02 02:12:09,292 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:12:09,292 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] [2018-12-02 02:12:09,292 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:12:09,293 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:12:09,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1472880406, now seen corresponding path program 2 times [2018-12-02 02:12:09,293 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:12:09,293 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:12:09,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,295 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:12:09,295 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:12:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:12:09,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 02:12:09,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:12:09,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 02:12:09,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 02:12:09,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 02:12:09,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-02 02:12:09,320 INFO L87 Difference]: Start difference. First operand 100 states and 159 transitions. Second operand 4 states. [2018-12-02 02:12:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:12:09,329 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2018-12-02 02:12:09,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 02:12:09,329 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-12-02 02:12:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:12:09,330 INFO L225 Difference]: With dead ends: 47 [2018-12-02 02:12:09,330 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 02:12:09,330 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 [2018-12-02 02:12:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 02:12:09,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 02:12:09,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 02:12:09,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 02:12:09,331 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-02 02:12:09,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:12:09,331 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:12:09,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 02:12:09,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:12:09,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 02:12:09,333 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-02 02:12:09,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:12:09 BasicIcfg [2018-12-02 02:12:09,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 02:12:09,335 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:12:09,335 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:12:09,335 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:12:09,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:12:08" (3/4) ... [2018-12-02 02:12:09,338 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 02:12:09,343 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-12-02 02:12:09,345 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-02 02:12:09,346 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 02:12:09,374 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e5230888-b502-42fc-b435-65c5e5b6b538/bin-2019/uautomizer/witness.graphml [2018-12-02 02:12:09,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:12:09,375 INFO L168 Benchmark]: Toolchain (without parser) took 1004.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 956.0 MB in the beginning and 966.5 MB in the end (delta: -10.5 MB). Peak memory consumption was 70.2 MB. Max. memory is 11.5 GB. [2018-12-02 02:12:09,376 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:12:09,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -98.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. [2018-12-02 02:12:09,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.03 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. [2018-12-02 02:12:09,377 INFO L168 Benchmark]: Boogie Preprocessor took 18.20 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. [2018-12-02 02:12:09,377 INFO L168 Benchmark]: RCFGBuilder took 173.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-02 02:12:09,378 INFO L168 Benchmark]: TraceAbstraction took 457.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 966.5 MB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB. [2018-12-02 02:12:09,378 INFO L168 Benchmark]: Witness Printer took 39.56 ms. Allocated memory is still 1.1 GB. Free memory is still 966.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:12:09,380 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 80.7 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -98.2 MB). Peak memory consumption was 30.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.03 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. * Boogie Preprocessor took 18.20 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 173.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 457.24 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 966.5 MB in the end (delta: 62.3 MB). Peak memory consumption was 62.3 MB. Max. memory is 11.5 GB. * Witness Printer took 39.56 ms. Allocated memory is still 1.1 GB. Free memory is still 966.5 MB. There was no memory consumed. 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, 0.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 235 SDtfs, 89 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, 0.1s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 107 ConstructedInterpolants, 0 QuantifiedInterpolants, 3383 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...