./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/lazy01_false-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_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/lazy01_false-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/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 61886a16eaa9879254fb15413029565914aacace .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:45:56,927 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:45:56,928 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:45:56,934 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:45:56,935 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:45:56,935 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:45:56,936 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:45:56,936 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:45:56,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:45:56,938 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:45:56,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:45:56,938 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:45:56,939 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:45:56,939 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:45:56,940 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:45:56,940 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:45:56,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:45:56,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:45:56,942 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:45:56,943 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:45:56,943 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:45:56,944 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:45:56,945 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:45:56,945 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:45:56,945 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:45:56,946 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:45:56,946 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:45:56,947 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:45:56,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:45:56,947 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:45:56,948 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:45:56,948 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:45:56,948 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:45:56,948 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:45:56,949 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:45:56,949 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:45:56,949 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-08 15:45:56,956 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:45:56,956 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:45:56,957 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:45:56,957 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:45:56,957 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 15:45:56,957 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 15:45:56,958 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:45:56,958 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:45:56,959 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:45:56,959 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:45:56,959 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 15:45:56,960 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:45:56,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:45:56,960 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_940b1053-11f2-4c63-a213-243f61f82868/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 -> 61886a16eaa9879254fb15413029565914aacace [2018-12-08 15:45:56,977 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:45:56,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:45:56,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:45:56,986 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:45:56,987 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:45:56,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/../../sv-benchmarks/c/pthread/lazy01_false-unreach-call.i [2018-12-08 15:45:57,026 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/data/86ee30c59/3b5db3f6549a4c0b973ce71f54eb3335/FLAGc2a8e40f0 [2018-12-08 15:45:57,533 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:45:57,533 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/sv-benchmarks/c/pthread/lazy01_false-unreach-call.i [2018-12-08 15:45:57,540 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/data/86ee30c59/3b5db3f6549a4c0b973ce71f54eb3335/FLAGc2a8e40f0 [2018-12-08 15:45:58,021 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/data/86ee30c59/3b5db3f6549a4c0b973ce71f54eb3335 [2018-12-08 15:45:58,026 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:45:58,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:45:58,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:45:58,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:45:58,034 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:45:58,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6a127f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58, skipping insertion in model container [2018-12-08 15:45:58,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:45:58,065 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:45:58,222 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:45:58,232 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:45:58,292 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:45:58,324 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:45:58,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58 WrapperNode [2018-12-08 15:45:58,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:45:58,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:45:58,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:45:58,325 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:45:58,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:45:58,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:45:58,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:45:58,351 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:45:58,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... [2018-12-08 15:45:58,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:45:58,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:45:58,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:45:58,365 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:45:58,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:45:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 15:45:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 15:45:58,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2018-12-08 15:45:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2018-12-08 15:45:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2018-12-08 15:45:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2018-12-08 15:45:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2018-12-08 15:45:58,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2018-12-08 15:45:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 15:45:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2018-12-08 15:45:58,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 15:45:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 15:45:58,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:45:58,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:45:58,400 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-08 15:45:58,551 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:45:58,551 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-08 15:45:58,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:45:58 BoogieIcfgContainer [2018-12-08 15:45:58,552 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:45:58,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:45:58,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:45:58,554 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:45:58,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:45:58" (1/3) ... [2018-12-08 15:45:58,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611b7e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:45:58, skipping insertion in model container [2018-12-08 15:45:58,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:45:58" (2/3) ... [2018-12-08 15:45:58,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@611b7e59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:45:58, skipping insertion in model container [2018-12-08 15:45:58,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:45:58" (3/3) ... [2018-12-08 15:45:58,556 INFO L112 eAbstractionObserver]: Analyzing ICFG lazy01_false-unreach-call.i [2018-12-08 15:45:58,576 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,577 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,577 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,577 WARN L317 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,577 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,577 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,578 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,578 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,578 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,578 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,578 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe Thread1_thread2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,579 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,580 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thread2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,580 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,580 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,580 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,580 WARN L317 ript$VariableManager]: TermVariabe Thread2_thread3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,580 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,581 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,581 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,581 WARN L317 ript$VariableManager]: TermVariabe |Thread2_thread3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-08 15:45:58,594 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-08 15:45:58,594 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:45:58,599 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-08 15:45:58,608 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-08 15:45:58,622 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 15:45:58,622 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:45:58,622 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:45:58,622 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:45:58,623 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:45:58,623 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:45:58,623 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:45:58,623 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:45:58,623 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:45:58,628 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 71places, 74 transitions [2018-12-08 15:45:58,694 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3562 states. [2018-12-08 15:45:58,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3562 states. [2018-12-08 15:45:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-08 15:45:58,703 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:58,704 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:58,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:58,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:58,709 INFO L82 PathProgramCache]: Analyzing trace with hash -394378403, now seen corresponding path program 1 times [2018-12-08 15:45:58,710 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:45:58,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:45:58,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:58,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:58,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:58,831 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:58,831 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:45:58,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:45:58,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:45:58,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:58,843 INFO L87 Difference]: Start difference. First operand 3562 states. Second operand 3 states. [2018-12-08 15:45:58,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:58,893 INFO L93 Difference]: Finished difference Result 3442 states and 10692 transitions. [2018-12-08 15:45:58,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:45:58,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-08 15:45:58,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:58,911 INFO L225 Difference]: With dead ends: 3442 [2018-12-08 15:45:58,911 INFO L226 Difference]: Without dead ends: 1949 [2018-12-08 15:45:58,912 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:58,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2018-12-08 15:45:58,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1949. [2018-12-08 15:45:58,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1949 states. [2018-12-08 15:45:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1949 states to 1949 states and 5937 transitions. [2018-12-08 15:45:58,987 INFO L78 Accepts]: Start accepts. Automaton has 1949 states and 5937 transitions. Word has length 28 [2018-12-08 15:45:58,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:58,988 INFO L480 AbstractCegarLoop]: Abstraction has 1949 states and 5937 transitions. [2018-12-08 15:45:58,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:45:58,988 INFO L276 IsEmpty]: Start isEmpty. Operand 1949 states and 5937 transitions. [2018-12-08 15:45:58,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-12-08 15:45:58,991 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:58,991 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:58,992 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:58,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:58,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1184606559, now seen corresponding path program 1 times [2018-12-08 15:45:58,992 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:45:58,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:45:58,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:58,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:58,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:59,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:59,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:59,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:45:59,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:45:59,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:45:59,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:59,042 INFO L87 Difference]: Start difference. First operand 1949 states and 5937 transitions. Second operand 3 states. [2018-12-08 15:45:59,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:59,072 INFO L93 Difference]: Finished difference Result 1154 states and 3065 transitions. [2018-12-08 15:45:59,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:45:59,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2018-12-08 15:45:59,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:59,075 INFO L225 Difference]: With dead ends: 1154 [2018-12-08 15:45:59,075 INFO L226 Difference]: Without dead ends: 1130 [2018-12-08 15:45:59,076 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:45:59,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1130 states. [2018-12-08 15:45:59,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1130 to 1130. [2018-12-08 15:45:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1130 states. [2018-12-08 15:45:59,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1130 states to 1130 states and 3001 transitions. [2018-12-08 15:45:59,093 INFO L78 Accepts]: Start accepts. Automaton has 1130 states and 3001 transitions. Word has length 32 [2018-12-08 15:45:59,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:59,094 INFO L480 AbstractCegarLoop]: Abstraction has 1130 states and 3001 transitions. [2018-12-08 15:45:59,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:45:59,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1130 states and 3001 transitions. [2018-12-08 15:45:59,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-08 15:45:59,095 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:59,095 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:59,095 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:59,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:59,095 INFO L82 PathProgramCache]: Analyzing trace with hash -2018743959, now seen corresponding path program 1 times [2018-12-08 15:45:59,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:45:59,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:45:59,098 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:59,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:59,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:59,146 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:59,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 15:45:59,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 15:45:59,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 15:45:59,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-08 15:45:59,147 INFO L87 Difference]: Start difference. First operand 1130 states and 3001 transitions. Second operand 4 states. [2018-12-08 15:45:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:59,166 INFO L93 Difference]: Finished difference Result 1082 states and 2869 transitions. [2018-12-08 15:45:59,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 15:45:59,167 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 33 [2018-12-08 15:45:59,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:59,171 INFO L225 Difference]: With dead ends: 1082 [2018-12-08 15:45:59,171 INFO L226 Difference]: Without dead ends: 1034 [2018-12-08 15:45:59,172 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 [2018-12-08 15:45:59,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2018-12-08 15:45:59,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1034. [2018-12-08 15:45:59,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-12-08 15:45:59,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 2737 transitions. [2018-12-08 15:45:59,188 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 2737 transitions. Word has length 33 [2018-12-08 15:45:59,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:59,189 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 2737 transitions. [2018-12-08 15:45:59,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 15:45:59,189 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 2737 transitions. [2018-12-08 15:45:59,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-12-08 15:45:59,190 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:59,190 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:59,191 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:59,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:59,191 INFO L82 PathProgramCache]: Analyzing trace with hash -65217093, now seen corresponding path program 1 times [2018-12-08 15:45:59,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:45:59,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:45:59,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:59,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:45:59,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:45:59,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:45:59,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 15:45:59,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 15:45:59,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 15:45:59,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-12-08 15:45:59,234 INFO L87 Difference]: Start difference. First operand 1034 states and 2737 transitions. Second operand 5 states. [2018-12-08 15:45:59,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:45:59,282 INFO L93 Difference]: Finished difference Result 986 states and 2605 transitions. [2018-12-08 15:45:59,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 15:45:59,282 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2018-12-08 15:45:59,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:45:59,286 INFO L225 Difference]: With dead ends: 986 [2018-12-08 15:45:59,286 INFO L226 Difference]: Without dead ends: 938 [2018-12-08 15:45:59,286 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-12-08 15:45:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states. [2018-12-08 15:45:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 938. [2018-12-08 15:45:59,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 938 states. [2018-12-08 15:45:59,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 938 states to 938 states and 2473 transitions. [2018-12-08 15:45:59,305 INFO L78 Accepts]: Start accepts. Automaton has 938 states and 2473 transitions. Word has length 35 [2018-12-08 15:45:59,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:45:59,305 INFO L480 AbstractCegarLoop]: Abstraction has 938 states and 2473 transitions. [2018-12-08 15:45:59,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 15:45:59,305 INFO L276 IsEmpty]: Start isEmpty. Operand 938 states and 2473 transitions. [2018-12-08 15:45:59,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-12-08 15:45:59,307 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:45:59,307 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:45:59,307 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:45:59,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:45:59,308 INFO L82 PathProgramCache]: Analyzing trace with hash -664399313, now seen corresponding path program 1 times [2018-12-08 15:45:59,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 15:45:59,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 15:45:59,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:45:59,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:45:59,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:45:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:45:59,357 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 15:45:59,390 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-08 15:45:59,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:45:59 BasicIcfg [2018-12-08 15:45:59,391 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:45:59,392 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:45:59,392 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:45:59,392 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:45:59,392 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:45:58" (3/4) ... [2018-12-08 15:45:59,394 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 15:45:59,433 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_940b1053-11f2-4c63-a213-243f61f82868/bin-2019/uautomizer/witness.graphml [2018-12-08 15:45:59,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:45:59,434 INFO L168 Benchmark]: Toolchain (without parser) took 1406.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 950.6 MB in the beginning and 871.5 MB in the end (delta: 79.2 MB). Peak memory consumption was 176.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:59,435 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:45:59,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -122.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:59,435 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.62 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:45:59,436 INFO L168 Benchmark]: Boogie Preprocessor took 14.08 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:45:59,436 INFO L168 Benchmark]: RCFGBuilder took 186.85 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:59,436 INFO L168 Benchmark]: TraceAbstraction took 839.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 876.8 MB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:59,437 INFO L168 Benchmark]: Witness Printer took 41.69 ms. Allocated memory is still 1.1 GB. Free memory was 876.8 MB in the beginning and 871.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 15:45:59,439 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 294.67 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -122.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.62 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 14.08 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 186.85 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 839.09 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 876.8 MB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 11.5 GB. * Witness Printer took 41.69 ms. Allocated memory is still 1.1 GB. Free memory was 876.8 MB in the beginning and 871.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1242]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1217] -1 pthread_mutex_t mutex; VAL [mutex={27:0}] [L1218] -1 int data = 0; VAL [data=0, mutex={27:0}] [L1254] -1 pthread_t t1, t2, t3; VAL [data=0, mutex={27:0}] [L1256] FCALL, FORK -1 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={27:0}] [L1257] FCALL, FORK -1 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={27:0}] [L1258] FCALL, FORK -1 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=0, mutex={27:0}] [L1232] 0 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={27:0}] [L1223] 2 data++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] [L1241] COND TRUE 1 data >= 3 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] [L1242] 1 __VERIFIER_error() VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={27:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 99 locations, 2 error locations. UNSAFE Result, 0.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 262 SDtfs, 153 SDslu, 307 SDs, 0 SdLazy, 43 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3562occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 0 QuantifiedInterpolants, 8944 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...