./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a6b87fc48455dc53e38f1c353a311cdcd826300 ..................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-22 12:58:01,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:58:01,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:58:01,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:58:01,937 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:58:01,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:58:01,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:58:01,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:58:01,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:58:01,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:58:01,957 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:58:01,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:58:01,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:58:01,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:58:01,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:58:01,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:58:01,968 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:58:01,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:58:01,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:58:01,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:58:01,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:58:01,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:58:01,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:58:01,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:58:01,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:58:01,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:58:01,998 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:58:02,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:58:02,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:58:02,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:58:02,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:58:02,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:58:02,006 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:58:02,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:58:02,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:58:02,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:58:02,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:58:02,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:58:02,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:58:02,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:58:02,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:58:02,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:58:02,053 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:58:02,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:58:02,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:58:02,055 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:58:02,055 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:58:02,055 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:58:02,055 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:58:02,055 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:58:02,056 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:58:02,056 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:58:02,057 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:58:02,057 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:58:02,057 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:58:02,057 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:58:02,058 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:58:02,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:58:02,058 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:58:02,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:58:02,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:58:02,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:58:02,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:58:02,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:58:02,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:58:02,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:58:02,060 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:58:02,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:58:02,060 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:58:02,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:58:02,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:58:02,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:58:02,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:58:02,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:58:02,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:58:02,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:58:02,062 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:58:02,062 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:58:02,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:58:02,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:58:02,063 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:58:02,063 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:58:02,063 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a6b87fc48455dc53e38f1c353a311cdcd826300 [2020-11-22 12:58:02,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:58:02,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:58:02,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:58:02,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:58:02,372 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:58:02,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/../../sv-benchmarks/c/pthread/stateful01-1.i [2020-11-22 12:58:02,452 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/data/9e76a71bc/951c0e0997e74b65986c13bca46781ae/FLAG83b3452e2 [2020-11-22 12:58:03,065 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:58:03,066 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/sv-benchmarks/c/pthread/stateful01-1.i [2020-11-22 12:58:03,086 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/data/9e76a71bc/951c0e0997e74b65986c13bca46781ae/FLAG83b3452e2 [2020-11-22 12:58:03,355 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/data/9e76a71bc/951c0e0997e74b65986c13bca46781ae [2020-11-22 12:58:03,357 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:58:03,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:58:03,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:03,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:58:03,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:58:03,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:03,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c2f8b68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03, skipping insertion in model container [2020-11-22 12:58:03,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:03,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:58:03,424 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:58:03,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:03,779 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:58:03,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:58:03,922 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:58:03,924 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03 WrapperNode [2020-11-22 12:58:03,924 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:58:03,925 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:03,925 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:58:03,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:58:03,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:03,968 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:03,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:58:03,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:58:03,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:58:03,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:58:04,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,013 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... [2020-11-22 12:58:04,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:58:04,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:58:04,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:58:04,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:58:04,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/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 [2020-11-22 12:58:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 12:58:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-22 12:58:04,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-22 12:58:04,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-11-22 12:58:04,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-11-22 12:58:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 12:58:04,115 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-22 12:58:04,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:58:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-22 12:58:04,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:58:04,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:58:04,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:58:04,122 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-22 12:58:04,659 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:58:04,659 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-22 12:58:04,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:04 BoogieIcfgContainer [2020-11-22 12:58:04,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:58:04,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:58:04,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:58:04,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:58:04,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:58:03" (1/3) ... [2020-11-22 12:58:04,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@879711a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:04, skipping insertion in model container [2020-11-22 12:58:04,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:58:03" (2/3) ... [2020-11-22 12:58:04,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@879711a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:58:04, skipping insertion in model container [2020-11-22 12:58:04,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:04" (3/3) ... [2020-11-22 12:58:04,668 INFO L111 eAbstractionObserver]: Analyzing ICFG stateful01-1.i [2020-11-22 12:58:04,678 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-22 12:58:04,678 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:58:04,682 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:58:04,683 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-22 12:58:04,709 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,709 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,709 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,710 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,710 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,710 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,710 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,711 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,712 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,713 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,713 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,713 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,713 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,714 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,714 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,714 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,715 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,717 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,717 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,718 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,718 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,723 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,723 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,724 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,724 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,724 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,724 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-22 12:58:04,740 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-11-22 12:58:04,751 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-22 12:58:04,781 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:58:04,781 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:58:04,781 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:58:04,781 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:58:04,781 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:58:04,782 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:58:04,782 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:58:04,782 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:58:04,798 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-22 12:58:04,801 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 87 transitions, 196 flow [2020-11-22 12:58:04,805 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 87 transitions, 196 flow [2020-11-22 12:58:04,806 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 87 transitions, 196 flow [2020-11-22 12:58:04,871 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-22 12:58:04,872 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-11-22 12:58:04,874 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 87 events. 3/87 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 32. Up to 3 conditions per place. [2020-11-22 12:58:04,877 INFO L116 LiptonReduction]: Number of co-enabled transitions 680 [2020-11-22 12:58:07,070 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-22 12:58:07,180 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-11-22 12:58:07,608 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2020-11-22 12:58:07,771 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-22 12:58:08,581 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 132 [2020-11-22 12:58:08,845 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-11-22 12:58:08,854 INFO L131 LiptonReduction]: Checked pairs total: 3315 [2020-11-22 12:58:08,854 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-11-22 12:58:08,858 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 30 transitions, 82 flow [2020-11-22 12:58:08,877 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 198 states. [2020-11-22 12:58:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-11-22 12:58:08,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:58:08,888 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:08,889 INFO L422 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] [2020-11-22 12:58:08,889 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:08,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:08,894 INFO L82 PathProgramCache]: Analyzing trace with hash -122239032, now seen corresponding path program 1 times [2020-11-22 12:58:08,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:08,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845979580] [2020-11-22 12:58:08,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:09,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:58:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 12:58:09,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845979580] [2020-11-22 12:58:09,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:58:09,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-22 12:58:09,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362836481] [2020-11-22 12:58:09,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 12:58:09,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:58:09,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 12:58:09,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:58:09,184 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 5 states. [2020-11-22 12:58:09,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:58:09,256 INFO L93 Difference]: Finished difference Result 198 states and 413 transitions. [2020-11-22 12:58:09,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 12:58:09,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-11-22 12:58:09,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:58:09,268 INFO L225 Difference]: With dead ends: 198 [2020-11-22 12:58:09,268 INFO L226 Difference]: Without dead ends: 170 [2020-11-22 12:58:09,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-22 12:58:09,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-11-22 12:58:09,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2020-11-22 12:58:09,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-11-22 12:58:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 361 transitions. [2020-11-22 12:58:09,316 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 361 transitions. Word has length 25 [2020-11-22 12:58:09,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:58:09,316 INFO L481 AbstractCegarLoop]: Abstraction has 170 states and 361 transitions. [2020-11-22 12:58:09,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 12:58:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 361 transitions. [2020-11-22 12:58:09,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-22 12:58:09,319 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:58:09,319 INFO L422 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] [2020-11-22 12:58:09,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:58:09,319 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:58:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:58:09,320 INFO L82 PathProgramCache]: Analyzing trace with hash -150867222, now seen corresponding path program 1 times [2020-11-22 12:58:09,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:58:09,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126585712] [2020-11-22 12:58:09,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:58:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:09,391 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:58:09,466 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:58:09,517 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:58:09,517 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:58:09,518 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 12:58:09,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:58:09 BasicIcfg [2020-11-22 12:58:09,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:58:09,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:58:09,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:58:09,569 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:58:09,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:58:04" (3/4) ... [2020-11-22 12:58:09,583 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 12:58:09,672 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9f0a3f4f-8963-447c-9a33-f86ae3c84a3b/bin/utaipan/witness.graphml [2020-11-22 12:58:09,679 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:58:09,681 INFO L168 Benchmark]: Toolchain (without parser) took 6321.60 ms. Allocated memory was 100.7 MB in the beginning and 153.1 MB in the end (delta: 52.4 MB). Free memory was 68.8 MB in the beginning and 64.3 MB in the end (delta: 4.5 MB). Peak memory consumption was 57.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:09,681 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 77.6 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:09,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.03 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 59.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:09,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.05 ms. Allocated memory is still 100.7 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:09,683 INFO L168 Benchmark]: Boogie Preprocessor took 37.63 ms. Allocated memory is still 100.7 MB. Free memory was 57.0 MB in the beginning and 55.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:58:09,683 INFO L168 Benchmark]: RCFGBuilder took 620.63 ms. Allocated memory is still 100.7 MB. Free memory was 55.4 MB in the beginning and 78.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:09,684 INFO L168 Benchmark]: TraceAbstraction took 4906.52 ms. Allocated memory was 100.7 MB in the beginning and 153.1 MB in the end (delta: 52.4 MB). Free memory was 77.5 MB in the beginning and 69.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 59.8 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:09,684 INFO L168 Benchmark]: Witness Printer took 110.58 ms. Allocated memory is still 153.1 MB. Free memory was 69.5 MB in the beginning and 64.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:58:09,686 INFO L339 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 77.6 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 36.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.03 ms. Allocated memory is still 100.7 MB. Free memory was 68.6 MB in the beginning and 59.1 MB in the end (delta: 9.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.05 ms. Allocated memory is still 100.7 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.63 ms. Allocated memory is still 100.7 MB. Free memory was 57.0 MB in the beginning and 55.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 620.63 ms. Allocated memory is still 100.7 MB. Free memory was 55.4 MB in the beginning and 78.2 MB in the end (delta: -22.9 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4906.52 ms. Allocated memory was 100.7 MB in the beginning and 153.1 MB in the end (delta: 52.4 MB). Free memory was 77.5 MB in the beginning and 69.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 59.8 MB. Max. memory is 16.1 GB. * Witness Printer took 110.58 ms. Allocated memory is still 153.1 MB. Free memory was 69.5 MB in the beginning and 64.3 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 440 VarBasedMoverChecksPositive, 50 VarBasedMoverChecksNegative, 14 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 146 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.0s, 90 PlacesBefore, 35 PlacesAfterwards, 87 TransitionsBefore, 30 TransitionsAfterwards, 680 CoEnabledTransitionPairs, 6 FixpointIterations, 42 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 3315 MoverChecksTotal - CounterExampleResult [Line: 20]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L692] 0 pthread_mutex_t ma, mb; [L693] 0 int data1, data2; [L716] 0 pthread_t t1, t2; [L719] 0 data1 = 10 [L720] 0 data2 = 10 [L721] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data1=10, data2=10, ma={6:0}, mb={9:0}] [L697] 1 data1++ [L700] 1 data2++ VAL [arg={0:0}, arg={0:0}, data1=11, data2=11, ma={6:0}, mb={9:0}] [L702] 1 return 0; [L722] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={6:0}, mb={9:0}] [L723] 0 \read(t1) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=11, data2=11, ma={6:0}, mb={9:0}] [L707] 2 data1+=5 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=11, ma={6:0}, mb={9:0}] [L710] 2 data2-=6 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] [L712] 2 return 0; [L723] FCALL, JOIN 1 pthread_join(t1, 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={6:0}, mb={9:0}] [L724] 0 \read(t2) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] [L724] 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={6:0}, mb={9:0}] [L725] COND TRUE 0 data1==16 && data2==5 [L20] COND FALSE 0 !(0) [L20] 0 __assert_fail ("0", "stateful01-1.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data1=16, data2=5, ma={6:0}, mb={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 44 SDtfs, 44 SDslu, 36 SDs, 0 SdLazy, 14 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 3288 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...