./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/stateful01-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash daf8296ccffa2774bcd8f28d2aef5bf1cbb0f4f5 .......................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-20 09:51:53,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 09:51:53,604 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 09:51:53,617 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 09:51:53,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 09:51:53,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 09:51:53,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 09:51:53,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 09:51:53,631 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 09:51:53,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 09:51:53,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 09:51:53,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 09:51:53,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 09:51:53,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 09:51:53,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 09:51:53,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 09:51:53,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 09:51:53,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 09:51:53,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 09:51:53,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 09:51:53,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 09:51:53,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 09:51:53,660 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 09:51:53,661 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 09:51:53,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 09:51:53,665 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 09:51:53,665 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 09:51:53,667 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 09:51:53,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 09:51:53,669 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 09:51:53,669 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 09:51:53,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 09:51:53,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 09:51:53,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 09:51:53,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 09:51:53,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 09:51:53,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 09:51:53,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 09:51:53,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 09:51:53,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 09:51:53,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 09:51:53,676 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 09:51:53,705 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 09:51:53,705 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 09:51:53,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 09:51:53,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 09:51:53,712 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 09:51:53,712 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 09:51:53,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 09:51:53,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 09:51:53,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 09:51:53,714 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 09:51:53,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 09:51:53,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 09:51:53,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 09:51:53,714 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 09:51:53,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 09:51:53,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:51:53,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 09:51:53,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 09:51:53,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 09:51:53,715 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 09:51:53,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 09:51:53,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 09:51:53,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daf8296ccffa2774bcd8f28d2aef5bf1cbb0f4f5 [2019-11-20 09:51:53,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 09:51:53,885 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 09:51:53,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 09:51:53,889 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 09:51:53,890 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 09:51:53,890 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/../../sv-benchmarks/c/pthread/stateful01-1.i [2019-11-20 09:51:53,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/data/f33b0bb2a/9e7c432eafc44aa9b3991e6c066af71a/FLAG244f31250 [2019-11-20 09:51:54,414 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 09:51:54,415 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/sv-benchmarks/c/pthread/stateful01-1.i [2019-11-20 09:51:54,428 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/data/f33b0bb2a/9e7c432eafc44aa9b3991e6c066af71a/FLAG244f31250 [2019-11-20 09:51:54,669 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/data/f33b0bb2a/9e7c432eafc44aa9b3991e6c066af71a [2019-11-20 09:51:54,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 09:51:54,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 09:51:54,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 09:51:54,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 09:51:54,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 09:51:54,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:51:54" (1/1) ... [2019-11-20 09:51:54,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55928634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:54, skipping insertion in model container [2019-11-20 09:51:54,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:51:54" (1/1) ... [2019-11-20 09:51:54,688 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 09:51:54,733 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 09:51:55,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:51:55,162 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 09:51:55,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 09:51:55,285 INFO L192 MainTranslator]: Completed translation [2019-11-20 09:51:55,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55 WrapperNode [2019-11-20 09:51:55,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 09:51:55,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 09:51:55,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 09:51:55,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 09:51:55,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 09:51:55,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 09:51:55,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 09:51:55,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 09:51:55,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... [2019-11-20 09:51:55,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 09:51:55,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 09:51:55,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 09:51:55,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 09:51:55,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 09:51:55,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 09:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-20 09:51:55,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-20 09:51:55,447 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-11-20 09:51:55,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-11-20 09:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 09:51:55,448 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-20 09:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-20 09:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-20 09:51:55,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-20 09:51:55,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 09:51:55,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 09:51:55,453 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-20 09:51:55,797 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 09:51:55,798 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 09:51:55,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:51:55 BoogieIcfgContainer [2019-11-20 09:51:55,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 09:51:55,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 09:51:55,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 09:51:55,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 09:51:55,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:51:54" (1/3) ... [2019-11-20 09:51:55,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b48e5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:51:55, skipping insertion in model container [2019-11-20 09:51:55,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:51:55" (2/3) ... [2019-11-20 09:51:55,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b48e5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:51:55, skipping insertion in model container [2019-11-20 09:51:55,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:51:55" (3/3) ... [2019-11-20 09:51:55,805 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2019-11-20 09:51:55,863 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,863 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,864 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,864 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,864 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,864 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,865 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,865 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,865 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,865 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,866 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,866 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,866 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,866 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,867 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,867 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,867 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,867 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,867 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,868 WARN L315 ript$VariableManager]: TermVariabe thread1Thread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,868 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,868 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,868 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,868 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,869 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,869 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,869 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,869 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,870 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,870 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,870 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,870 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,871 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,871 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,871 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork4_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,871 WARN L315 ript$VariableManager]: TermVariabe thread1Thread3of3ForFork4_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,871 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,872 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,872 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,872 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,872 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,872 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,873 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,873 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,873 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,873 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,874 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,874 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread3of3ForFork4_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,874 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,874 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,875 WARN L315 ript$VariableManager]: TermVariabe thread2Thread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,875 WARN L315 ript$VariableManager]: TermVariabe thread2Thread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,875 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,875 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,875 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,876 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,876 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,876 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,876 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,877 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,877 WARN L315 ript$VariableManager]: TermVariabe thread2Thread3of3ForFork5_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,877 WARN L315 ript$VariableManager]: TermVariabe thread2Thread3of3ForFork5_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,877 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,877 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,878 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,878 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,878 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,878 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread3of3ForFork5_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,879 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,879 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,879 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,879 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,879 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,880 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,880 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,880 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,880 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,880 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-20 09:51:55,920 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-20 09:51:55,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 09:51:55,928 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 09:51:55,939 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 09:51:55,958 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 09:51:55,958 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 09:51:55,958 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 09:51:55,958 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 09:51:55,959 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 09:51:55,959 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 09:51:55,959 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 09:51:55,959 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 09:51:55,985 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 144 places, 140 transitions [2019-11-20 09:51:56,421 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5619 states. [2019-11-20 09:51:56,423 INFO L276 IsEmpty]: Start isEmpty. Operand 5619 states. [2019-11-20 09:51:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 09:51:56,490 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:51:56,492 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:51:56,492 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:51:56,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:51:56,499 INFO L82 PathProgramCache]: Analyzing trace with hash 2075242160, now seen corresponding path program 1 times [2019-11-20 09:51:56,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:51:56,512 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377738578] [2019-11-20 09:51:56,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:51:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 09:51:56,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 09:51:56,852 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377738578] [2019-11-20 09:51:56,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 09:51:56,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 09:51:56,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488348776] [2019-11-20 09:51:56,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 09:51:56,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 09:51:56,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 09:51:56,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:51:56,885 INFO L87 Difference]: Start difference. First operand 5619 states. Second operand 3 states. [2019-11-20 09:51:57,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 09:51:57,110 INFO L93 Difference]: Finished difference Result 3999 states and 8959 transitions. [2019-11-20 09:51:57,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 09:51:57,112 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-11-20 09:51:57,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 09:51:57,181 INFO L225 Difference]: With dead ends: 3999 [2019-11-20 09:51:57,181 INFO L226 Difference]: Without dead ends: 3991 [2019-11-20 09:51:57,183 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 09:51:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2019-11-20 09:51:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 3991. [2019-11-20 09:51:57,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3991 states. [2019-11-20 09:51:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3991 states to 3991 states and 8951 transitions. [2019-11-20 09:51:57,460 INFO L78 Accepts]: Start accepts. Automaton has 3991 states and 8951 transitions. Word has length 65 [2019-11-20 09:51:57,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 09:51:57,463 INFO L462 AbstractCegarLoop]: Abstraction has 3991 states and 8951 transitions. [2019-11-20 09:51:57,463 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 09:51:57,463 INFO L276 IsEmpty]: Start isEmpty. Operand 3991 states and 8951 transitions. [2019-11-20 09:51:57,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-11-20 09:51:57,482 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 09:51:57,483 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 09:51:57,483 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 09:51:57,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 09:51:57,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1171779464, now seen corresponding path program 2 times [2019-11-20 09:51:57,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 09:51:57,484 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178018028] [2019-11-20 09:51:57,484 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 09:51:57,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:51:57,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-20 09:51:57,649 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-20 09:51:57,649 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-20 09:51:57,738 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-20 09:51:57,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:51:57 BasicIcfg [2019-11-20 09:51:57,742 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 09:51:57,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 09:51:57,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 09:51:57,743 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 09:51:57,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:51:55" (3/4) ... [2019-11-20 09:51:57,747 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-20 09:51:57,851 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fe0b55c1-e04f-46bd-9eaa-8fb964604dbd/bin/uautomizer/witness.graphml [2019-11-20 09:51:57,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 09:51:57,854 INFO L168 Benchmark]: Toolchain (without parser) took 3180.50 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 939.4 MB in the beginning and 821.0 MB in the end (delta: 118.4 MB). Peak memory consumption was 235.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:51:57,854 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 09:51:57,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 611.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:51:57,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 09:51:57,856 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 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. [2019-11-20 09:51:57,857 INFO L168 Benchmark]: RCFGBuilder took 429.30 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-11-20 09:51:57,858 INFO L168 Benchmark]: TraceAbstraction took 1942.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 835.2 MB in the end (delta: 212.3 MB). Peak memory consumption was 212.3 MB. Max. memory is 11.5 GB. [2019-11-20 09:51:57,859 INFO L168 Benchmark]: Witness Printer took 109.26 ms. Allocated memory is still 1.1 GB. Free memory was 835.2 MB in the beginning and 821.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2019-11-20 09:51:57,862 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 611.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 116.9 MB). Free memory was 939.4 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.03 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. * RCFGBuilder took 429.30 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1942.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 835.2 MB in the end (delta: 212.3 MB). Peak memory consumption was 212.3 MB. Max. memory is 11.5 GB. * Witness Printer took 109.26 ms. Allocated memory is still 1.1 GB. Free memory was 835.2 MB in the beginning and 821.0 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 708]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L673] 0 pthread_mutex_t ma, mb; VAL [ma={3:0}, mb={5:0}] [L674] 0 int data1, data2; VAL [data1=0, data2=0, ma={3:0}, mb={5:0}] [L697] 0 pthread_t t1, t2; VAL [data1=0, data2=0, ma={3:0}, mb={5:0}] [L700] 0 data1 = 10 VAL [data1=10, data2=0, ma={3:0}, mb={5:0}] [L701] 0 data2 = 10 VAL [data1=10, data2=10, ma={3:0}, mb={5:0}] [L702] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={3:0}, mb={5:0}] [L703] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={5:0}, pthread_mutex_lock(&ma)=0] [L704] 0 \read(t1) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data1=10, data2=10, ma={3:0}, mb={5:0}, pthread_mutex_lock(&ma)=0] [L678] 1 data1++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=10, ma={3:0}, mb={5:0}] [L681] 1 data2++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={5:0}] [L683] 1 return 0; VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={5:0}] [L704] FCALL, JOIN 1 pthread_join(t1, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={5:0}, pthread_mutex_lock(&ma)=0] [L705] 0 \read(t2) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={3:0}, mb={5:0}, pthread_mutex_lock(&ma)=0] [L688] 2 data1+=5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={3:0}, mb={5:0}] [L691] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L693] 2 return 0; VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L705] FCALL, JOIN 2 pthread_join(t2, 0) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L706] COND TRUE 0 data1==16 && data2==5 VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] [L708] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={3:0}, mb={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 160 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 64 SDslu, 71 SDs, 0 SdLazy, 32 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5619occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 6400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...