./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/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 bd96c0671cce65dbf63867d7bfdc53d4e1ac2a39 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-6b5699a [2019-11-25 08:50:58,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:50:58,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:50:58,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:50:58,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:50:58,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:50:58,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:50:58,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:50:58,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:50:58,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:50:58,762 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:50:58,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:50:58,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:50:58,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:50:58,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:50:58,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:50:58,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:50:58,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:50:58,771 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:50:58,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:50:58,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:50:58,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:50:58,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:50:58,783 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:50:58,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:50:58,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:50:58,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:50:58,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:50:58,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:50:58,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:50:58,789 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:50:58,790 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:50:58,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:50:58,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:50:58,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:50:58,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:50:58,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:50:58,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:50:58,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:50:58,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:50:58,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:50:58,795 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:50:58,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:50:58,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:50:58,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:50:58,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:50:58,829 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:50:58,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:50:58,829 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:50:58,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:50:58,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:50:58,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:50:58,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:50:58,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:50:58,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:50:58,831 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:50:58,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:50:58,831 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:50:58,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:50:58,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:50:58,831 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:50:58,832 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:50:58,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:50:58,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:50:58,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:50:58,832 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:50:58,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:50:58,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:50:58,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:50:58,833 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:50:58,833 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_53cdada5-08b6-4bf8-9555-6515e57bf3cc/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 -> bd96c0671cce65dbf63867d7bfdc53d4e1ac2a39 [2019-11-25 08:50:58,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:50:58,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:50:58,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:50:58,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:50:58,983 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:50:58,984 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2019-11-25 08:50:59,037 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/data/f7b220c91/a06525db17294862a3a8b5cb674802bb/FLAGfc14d02b5 [2019-11-25 08:50:59,497 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:50:59,497 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2019-11-25 08:50:59,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/data/f7b220c91/a06525db17294862a3a8b5cb674802bb/FLAGfc14d02b5 [2019-11-25 08:50:59,523 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/data/f7b220c91/a06525db17294862a3a8b5cb674802bb [2019-11-25 08:50:59,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:50:59,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:50:59,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:50:59,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:50:59,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:50:59,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22403bc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:50:59, skipping insertion in model container [2019-11-25 08:50:59,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:50:59" (1/1) ... [2019-11-25 08:50:59,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:50:59,577 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:50:59,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:50:59,919 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:50:59,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:51:00,033 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:51:00,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00 WrapperNode [2019-11-25 08:51:00,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:51:00,034 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:00,034 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:51:00,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:51:00,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:51:00,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:51:00,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:51:00,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:51:00,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,095 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... [2019-11-25 08:51:00,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:51:00,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:51:00,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:51:00,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:51:00,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/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 [2019-11-25 08:51:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:51:00,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:51:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-11-25 08:51:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-11-25 08:51:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:51:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:51:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:51:00,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:51:00,167 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-11-25 08:51:00,168 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-11-25 08:51:00,169 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-25 08:51:00,332 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-11-25 08:51:00,499 INFO L1493 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-11-25 08:51:00,517 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:51:00,517 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:51:00,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:00 BoogieIcfgContainer [2019-11-25 08:51:00,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:51:00,519 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:51:00,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:51:00,522 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:51:00,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:50:59" (1/3) ... [2019-11-25 08:51:00,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6629d946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:00, skipping insertion in model container [2019-11-25 08:51:00,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:51:00" (2/3) ... [2019-11-25 08:51:00,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6629d946 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:51:00, skipping insertion in model container [2019-11-25 08:51:00,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:00" (3/3) ... [2019-11-25 08:51:00,525 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2019-11-25 08:51:00,577 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,577 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,577 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,577 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,578 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,578 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,578 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,578 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,579 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,579 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,579 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,579 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,580 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,580 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,580 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,580 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,580 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,581 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,581 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,581 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,581 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,582 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,582 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,582 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,582 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,583 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,583 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,583 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,583 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,584 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,584 WARN L315 ript$VariableManager]: TermVariabe readerThread3of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,584 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,584 WARN L315 ript$VariableManager]: TermVariabe |readerThread3of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,585 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,585 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,585 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,585 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,585 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,585 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,586 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,586 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,586 WARN L315 ript$VariableManager]: TermVariabe readerThread1of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,586 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,587 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,587 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,587 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,587 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,587 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,588 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,588 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,588 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,588 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,589 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,589 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,589 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,589 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,590 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,590 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,590 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,590 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,590 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,590 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,591 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,591 WARN L315 ript$VariableManager]: TermVariabe readerThread2of3ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,591 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,591 WARN L315 ript$VariableManager]: TermVariabe |readerThread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,592 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,592 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,592 WARN L315 ript$VariableManager]: TermVariabe writerThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,592 WARN L315 ript$VariableManager]: TermVariabe writerThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,592 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,593 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,593 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,593 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,593 WARN L315 ript$VariableManager]: TermVariabe writerThread3of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,593 WARN L315 ript$VariableManager]: TermVariabe writerThread3of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,594 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,594 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,595 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,595 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,595 WARN L315 ript$VariableManager]: TermVariabe writerThread2of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,595 WARN L315 ript$VariableManager]: TermVariabe writerThread2of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,595 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,595 WARN L315 ript$VariableManager]: TermVariabe |writerThread2of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,596 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,596 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,596 WARN L315 ript$VariableManager]: TermVariabe writerThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,596 WARN L315 ript$VariableManager]: TermVariabe writerThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,596 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,597 WARN L315 ript$VariableManager]: TermVariabe |writerThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,597 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,597 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,597 WARN L315 ript$VariableManager]: TermVariabe writerThread1of3ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,597 WARN L315 ript$VariableManager]: TermVariabe writerThread1of3ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,598 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,598 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,598 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,598 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,598 WARN L315 ript$VariableManager]: TermVariabe writerThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,598 WARN L315 ript$VariableManager]: TermVariabe writerThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,599 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,599 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-25 08:51:00,716 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-25 08:51:00,716 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:51:00,723 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-11-25 08:51:00,733 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-11-25 08:51:00,753 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:51:00,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:51:00,754 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:51:00,754 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:51:00,754 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:51:00,754 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:51:00,764 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:51:00,764 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:51:00,789 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 181 places, 202 transitions [2019-11-25 08:51:03,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 26398 states. [2019-11-25 08:51:03,030 INFO L276 IsEmpty]: Start isEmpty. Operand 26398 states. [2019-11-25 08:51:03,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-25 08:51:03,041 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:03,042 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] [2019-11-25 08:51:03,043 INFO L410 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:03,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:03,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1529961726, now seen corresponding path program 1 times [2019-11-25 08:51:03,055 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:03,056 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236161953] [2019-11-25 08:51:03,056 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:03,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:03,253 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236161953] [2019-11-25 08:51:03,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:03,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:51:03,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378034392] [2019-11-25 08:51:03,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:03,259 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:03,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:03,271 INFO L87 Difference]: Start difference. First operand 26398 states. Second operand 4 states. [2019-11-25 08:51:04,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:04,063 INFO L93 Difference]: Finished difference Result 52907 states and 202300 transitions. [2019-11-25 08:51:04,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:51:04,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-11-25 08:51:04,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:04,345 INFO L225 Difference]: With dead ends: 52907 [2019-11-25 08:51:04,345 INFO L226 Difference]: Without dead ends: 36825 [2019-11-25 08:51:04,347 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:04,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36825 states. [2019-11-25 08:51:05,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36825 to 22833. [2019-11-25 08:51:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22833 states. [2019-11-25 08:51:05,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22833 states to 22833 states and 87505 transitions. [2019-11-25 08:51:05,942 INFO L78 Accepts]: Start accepts. Automaton has 22833 states and 87505 transitions. Word has length 24 [2019-11-25 08:51:05,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:05,942 INFO L462 AbstractCegarLoop]: Abstraction has 22833 states and 87505 transitions. [2019-11-25 08:51:05,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 22833 states and 87505 transitions. [2019-11-25 08:51:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:51:05,953 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:05,953 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] [2019-11-25 08:51:05,953 INFO L410 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:05,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:05,954 INFO L82 PathProgramCache]: Analyzing trace with hash 900785215, now seen corresponding path program 1 times [2019-11-25 08:51:05,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:05,954 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420303069] [2019-11-25 08:51:05,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:06,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:06,076 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420303069] [2019-11-25 08:51:06,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:06,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:51:06,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298232171] [2019-11-25 08:51:06,078 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-25 08:51:06,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:06,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:51:06,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:51:06,079 INFO L87 Difference]: Start difference. First operand 22833 states and 87505 transitions. Second operand 3 states. [2019-11-25 08:51:06,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:06,530 INFO L93 Difference]: Finished difference Result 20901 states and 75794 transitions. [2019-11-25 08:51:06,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:51:06,532 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-25 08:51:06,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:06,620 INFO L225 Difference]: With dead ends: 20901 [2019-11-25 08:51:06,620 INFO L226 Difference]: Without dead ends: 20613 [2019-11-25 08:51:06,621 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 [2019-11-25 08:51:06,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20613 states. [2019-11-25 08:51:07,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20613 to 20613. [2019-11-25 08:51:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20613 states. [2019-11-25 08:51:07,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20613 states to 20613 states and 74746 transitions. [2019-11-25 08:51:07,551 INFO L78 Accepts]: Start accepts. Automaton has 20613 states and 74746 transitions. Word has length 26 [2019-11-25 08:51:07,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:07,551 INFO L462 AbstractCegarLoop]: Abstraction has 20613 states and 74746 transitions. [2019-11-25 08:51:07,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-25 08:51:07,552 INFO L276 IsEmpty]: Start isEmpty. Operand 20613 states and 74746 transitions. [2019-11-25 08:51:07,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-25 08:51:07,553 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:07,553 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] [2019-11-25 08:51:07,554 INFO L410 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:07,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:07,554 INFO L82 PathProgramCache]: Analyzing trace with hash 273822625, now seen corresponding path program 2 times [2019-11-25 08:51:07,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:07,555 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478047253] [2019-11-25 08:51:07,555 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:07,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:07,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:07,656 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478047253] [2019-11-25 08:51:07,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:07,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:51:07,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66472516] [2019-11-25 08:51:07,656 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:07,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:07,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:07,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:07,657 INFO L87 Difference]: Start difference. First operand 20613 states and 74746 transitions. Second operand 4 states. [2019-11-25 08:51:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:07,791 INFO L93 Difference]: Finished difference Result 18195 states and 60163 transitions. [2019-11-25 08:51:07,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:51:07,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2019-11-25 08:51:07,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:07,861 INFO L225 Difference]: With dead ends: 18195 [2019-11-25 08:51:07,862 INFO L226 Difference]: Without dead ends: 17619 [2019-11-25 08:51:07,862 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:07,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17619 states. [2019-11-25 08:51:08,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17619 to 13890. [2019-11-25 08:51:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13890 states. [2019-11-25 08:51:08,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13890 states to 13890 states and 46344 transitions. [2019-11-25 08:51:08,266 INFO L78 Accepts]: Start accepts. Automaton has 13890 states and 46344 transitions. Word has length 26 [2019-11-25 08:51:08,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:08,266 INFO L462 AbstractCegarLoop]: Abstraction has 13890 states and 46344 transitions. [2019-11-25 08:51:08,266 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:08,267 INFO L276 IsEmpty]: Start isEmpty. Operand 13890 states and 46344 transitions. [2019-11-25 08:51:08,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-25 08:51:08,273 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:08,273 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] [2019-11-25 08:51:08,273 INFO L410 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:08,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:08,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1308052962, now seen corresponding path program 1 times [2019-11-25 08:51:08,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:08,274 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330678375] [2019-11-25 08:51:08,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:08,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:08,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:08,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330678375] [2019-11-25 08:51:08,363 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:08,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:51:08,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792515774] [2019-11-25 08:51:08,364 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:51:08,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:08,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:51:08,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:51:08,365 INFO L87 Difference]: Start difference. First operand 13890 states and 46344 transitions. Second operand 4 states. [2019-11-25 08:51:08,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:08,508 INFO L93 Difference]: Finished difference Result 14757 states and 48987 transitions. [2019-11-25 08:51:08,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:51:08,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-11-25 08:51:08,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:08,537 INFO L225 Difference]: With dead ends: 14757 [2019-11-25 08:51:08,538 INFO L226 Difference]: Without dead ends: 8997 [2019-11-25 08:51:08,539 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:51:08,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8997 states. [2019-11-25 08:51:09,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8997 to 7638. [2019-11-25 08:51:09,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7638 states. [2019-11-25 08:51:09,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7638 states to 7638 states and 24731 transitions. [2019-11-25 08:51:09,047 INFO L78 Accepts]: Start accepts. Automaton has 7638 states and 24731 transitions. Word has length 30 [2019-11-25 08:51:09,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:09,049 INFO L462 AbstractCegarLoop]: Abstraction has 7638 states and 24731 transitions. [2019-11-25 08:51:09,049 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:51:09,049 INFO L276 IsEmpty]: Start isEmpty. Operand 7638 states and 24731 transitions. [2019-11-25 08:51:09,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:09,056 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:09,056 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] [2019-11-25 08:51:09,056 INFO L410 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:09,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:09,057 INFO L82 PathProgramCache]: Analyzing trace with hash 969494896, now seen corresponding path program 1 times [2019-11-25 08:51:09,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:09,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968634546] [2019-11-25 08:51:09,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:09,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:09,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968634546] [2019-11-25 08:51:09,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:09,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:51:09,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634471949] [2019-11-25 08:51:09,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:51:09,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:09,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:51:09,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:51:09,121 INFO L87 Difference]: Start difference. First operand 7638 states and 24731 transitions. Second operand 6 states. [2019-11-25 08:51:09,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:09,227 INFO L93 Difference]: Finished difference Result 8619 states and 27767 transitions. [2019-11-25 08:51:09,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:09,228 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-11-25 08:51:09,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:09,248 INFO L225 Difference]: With dead ends: 8619 [2019-11-25 08:51:09,248 INFO L226 Difference]: Without dead ends: 8133 [2019-11-25 08:51:09,249 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:51:09,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8133 states. [2019-11-25 08:51:09,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8133 to 7557. [2019-11-25 08:51:09,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7557 states. [2019-11-25 08:51:09,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7557 states to 7557 states and 24392 transitions. [2019-11-25 08:51:09,454 INFO L78 Accepts]: Start accepts. Automaton has 7557 states and 24392 transitions. Word has length 39 [2019-11-25 08:51:09,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:09,456 INFO L462 AbstractCegarLoop]: Abstraction has 7557 states and 24392 transitions. [2019-11-25 08:51:09,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:51:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 7557 states and 24392 transitions. [2019-11-25 08:51:09,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:09,472 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:09,473 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] [2019-11-25 08:51:09,473 INFO L410 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:09,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:09,473 INFO L82 PathProgramCache]: Analyzing trace with hash 909742484, now seen corresponding path program 1 times [2019-11-25 08:51:09,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:09,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019606007] [2019-11-25 08:51:09,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:09,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:09,582 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019606007] [2019-11-25 08:51:09,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:09,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:51:09,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641747838] [2019-11-25 08:51:09,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:51:09,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:09,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:51:09,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:51:09,584 INFO L87 Difference]: Start difference. First operand 7557 states and 24392 transitions. Second operand 6 states. [2019-11-25 08:51:09,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:09,694 INFO L93 Difference]: Finished difference Result 8538 states and 27428 transitions. [2019-11-25 08:51:09,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:09,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-11-25 08:51:09,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:09,712 INFO L225 Difference]: With dead ends: 8538 [2019-11-25 08:51:09,712 INFO L226 Difference]: Without dead ends: 7809 [2019-11-25 08:51:09,713 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:51:09,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7809 states. [2019-11-25 08:51:09,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7809 to 7233. [2019-11-25 08:51:09,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7233 states. [2019-11-25 08:51:09,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7233 states to 7233 states and 23279 transitions. [2019-11-25 08:51:09,904 INFO L78 Accepts]: Start accepts. Automaton has 7233 states and 23279 transitions. Word has length 39 [2019-11-25 08:51:09,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:09,904 INFO L462 AbstractCegarLoop]: Abstraction has 7233 states and 23279 transitions. [2019-11-25 08:51:09,904 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:51:09,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7233 states and 23279 transitions. [2019-11-25 08:51:09,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:09,911 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:09,912 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] [2019-11-25 08:51:09,912 INFO L410 AbstractCegarLoop]: === Iteration 7 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:09,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:09,912 INFO L82 PathProgramCache]: Analyzing trace with hash -1636294002, now seen corresponding path program 2 times [2019-11-25 08:51:09,912 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:09,913 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669557596] [2019-11-25 08:51:09,913 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:51:10,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:51:10,009 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669557596] [2019-11-25 08:51:10,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:51:10,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:51:10,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330410965] [2019-11-25 08:51:10,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:51:10,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:51:10,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:51:10,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:51:10,011 INFO L87 Difference]: Start difference. First operand 7233 states and 23279 transitions. Second operand 6 states. [2019-11-25 08:51:10,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:51:10,137 INFO L93 Difference]: Finished difference Result 8133 states and 26084 transitions. [2019-11-25 08:51:10,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:51:10,138 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2019-11-25 08:51:10,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:51:10,156 INFO L225 Difference]: With dead ends: 8133 [2019-11-25 08:51:10,156 INFO L226 Difference]: Without dead ends: 7593 [2019-11-25 08:51:10,157 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:51:10,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2019-11-25 08:51:10,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7017. [2019-11-25 08:51:10,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7017 states. [2019-11-25 08:51:10,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7017 states to 7017 states and 22627 transitions. [2019-11-25 08:51:10,329 INFO L78 Accepts]: Start accepts. Automaton has 7017 states and 22627 transitions. Word has length 39 [2019-11-25 08:51:10,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:51:10,331 INFO L462 AbstractCegarLoop]: Abstraction has 7017 states and 22627 transitions. [2019-11-25 08:51:10,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:51:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand 7017 states and 22627 transitions. [2019-11-25 08:51:10,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-11-25 08:51:10,339 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:51:10,339 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] [2019-11-25 08:51:10,340 INFO L410 AbstractCegarLoop]: === Iteration 8 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:51:10,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:51:10,340 INFO L82 PathProgramCache]: Analyzing trace with hash 837455830, now seen corresponding path program 3 times [2019-11-25 08:51:10,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:51:10,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694576603] [2019-11-25 08:51:10,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:51:10,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:10,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:51:10,427 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:51:10,427 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:51:10,496 INFO L304 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-25 08:51:10,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:51:10 BasicIcfg [2019-11-25 08:51:10,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:51:10,499 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:51:10,499 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:51:10,500 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:51:10,500 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:51:00" (3/4) ... [2019-11-25 08:51:10,517 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:51:10,599 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_53cdada5-08b6-4bf8-9555-6515e57bf3cc/bin/uautomizer/witness.graphml [2019-11-25 08:51:10,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:51:10,601 INFO L168 Benchmark]: Toolchain (without parser) took 11073.42 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 886.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -126.2 MB). Peak memory consumption was 759.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:10,601 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:10,602 INFO L168 Benchmark]: CACSL2BoogieTranslator took 505.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:10,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:10,602 INFO L168 Benchmark]: Boogie Preprocessor took 22.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:51:10,603 INFO L168 Benchmark]: RCFGBuilder took 418.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:10,603 INFO L168 Benchmark]: TraceAbstraction took 9979.72 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 740.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -10.8 MB). Peak memory consumption was 729.5 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:10,604 INFO L168 Benchmark]: Witness Printer took 99.59 ms. Allocated memory is still 1.9 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:51:10,608 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 505.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 418.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9979.72 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 740.3 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -10.8 MB). Peak memory consumption was 729.5 MB. Max. memory is 11.5 GB. * Witness Printer took 99.59 ms. Allocated memory is still 1.9 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 694]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L674] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L700] 0 pthread_t t1, t2, t3, t4; VAL [r=0, w=0, x=0, y=0] [L701] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L702] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L703] FCALL, FORK 0 pthread_create(&t3, 0, writer, 0) VAL [r=0, w=0, x=0, y=0] [L704] FCALL, FORK 0 pthread_create(&t4, 0, reader, 0) VAL [r=0, w=0, x=0, y=0] [L690] 4 int l; [L691] CALL 4 __VERIFIER_atomic_take_read_lock() [L681] 4 r = r+1 [L691] RET 4 __VERIFIER_atomic_take_read_lock() [L692] 4 l = x VAL [r=1, w=0, x=0, y=0] [L693] 4 y = l VAL [r=1, w=0, x=0, y=0] [L694] COND FALSE 4 !(!(y == x)) VAL [r=1, w=0, x=0, y=0] [L695] 4 l = r-1 VAL [r=1, w=0, x=0, y=0] [L690] 2 int l; [L691] CALL 2 __VERIFIER_atomic_take_read_lock() [L681] 2 r = r+1 [L691] RET 2 __VERIFIER_atomic_take_read_lock() [L696] 4 r = l VAL [r=0, w=0, x=0, y=0] [L684] CALL 3 __VERIFIER_atomic_take_write_lock() [L677] 3 w = 1 [L684] RET 3 __VERIFIER_atomic_take_write_lock() [L692] 2 l = x VAL [r=0, w=1, x=0, y=0] [L693] 2 y = l VAL [r=0, w=1, x=0, y=0] [L685] 3 x = 3 VAL [r=0, w=1, x=3, y=0] [L694] COND TRUE 2 !(y == x) VAL [r=0, w=1, x=3, y=0] [L694] 2 __VERIFIER_error() VAL [r=0, w=1, x=3, y=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 15 procedures, 175 locations, 7 error locations. Result: UNSAFE, OverallTime: 9.7s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 983 SDtfs, 879 SDslu, 1524 SDs, 0 SdLazy, 266 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26398occurred 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: 3.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 20808 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 216 ConstructedInterpolants, 0 QuantifiedInterpolants, 14824 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...