./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_3-join.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_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_3-join.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 158852c017926f5105117106d37baef2e7c75d8b ..................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2020-11-28 03:09:42,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:09:42,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:09:42,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:09:42,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:09:42,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:09:42,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:09:42,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:09:42,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:09:42,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:09:42,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:09:42,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:09:42,382 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:09:42,384 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:09:42,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:09:42,387 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:09:42,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:09:42,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:09:42,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:09:42,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:09:42,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:09:42,401 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:09:42,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:09:42,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:09:42,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:09:42,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:09:42,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:09:42,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:09:42,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:09:42,415 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:09:42,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:09:42,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:09:42,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:09:42,420 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:09:42,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:09:42,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:09:42,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:09:42,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:09:42,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:09:42,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:09:42,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:09:42,428 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:09:42,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:09:42,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:09:42,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:09:42,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:09:42,459 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:09:42,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:09:42,460 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:09:42,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:09:42,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:09:42,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:09:42,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:09:42,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:09:42,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:09:42,463 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:09:42,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:09:42,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:09:42,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:09:42,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:09:42,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:09:42,465 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:09:42,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:09:42,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:09:42,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:09:42,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:09:42,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:09:42,467 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:09:42,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:09:42,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:09:42,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:09:42,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 158852c017926f5105117106d37baef2e7c75d8b [2020-11-28 03:09:42,756 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:09:42,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:09:42,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:09:42,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:09:42,791 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:09:42,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-1_3-join.i [2020-11-28 03:09:42,899 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/data/99bc0b01a/3d5c68f80934417597bd9da4b0a3e9bb/FLAG06ebd4819 [2020-11-28 03:09:43,708 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:09:43,709 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/sv-benchmarks/c/ldv-races/race-1_3-join.i [2020-11-28 03:09:43,737 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/data/99bc0b01a/3d5c68f80934417597bd9da4b0a3e9bb/FLAG06ebd4819 [2020-11-28 03:09:43,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/data/99bc0b01a/3d5c68f80934417597bd9da4b0a3e9bb [2020-11-28 03:09:43,817 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:09:43,819 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:09:43,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:43,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:09:43,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:09:43,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:43" (1/1) ... [2020-11-28 03:09:43,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e29a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:43, skipping insertion in model container [2020-11-28 03:09:43,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:09:43" (1/1) ... [2020-11-28 03:09:43,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:09:43,937 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:09:45,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:45,112 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:09:45,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:09:45,738 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:09:45,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45 WrapperNode [2020-11-28 03:09:45,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:09:45,743 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:45,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:09:45,744 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:09:45,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:09:45,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:09:45,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:09:45,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:09:45,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... [2020-11-28 03:09:45,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:09:45,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:09:45,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:09:45,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:09:45,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/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 [2020-11-28 03:09:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-28 03:09:46,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 03:09:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-28 03:09:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 03:09:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-11-28 03:09:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 03:09:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:09:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:09:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:09:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-11-28 03:09:46,044 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-11-28 03:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 03:09:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:09:46,047 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-28 03:09:47,086 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:09:47,086 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-11-28 03:09:47,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:47 BoogieIcfgContainer [2020-11-28 03:09:47,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:09:47,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:09:47,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:09:47,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:09:47,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:09:43" (1/3) ... [2020-11-28 03:09:47,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c95d496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:47, skipping insertion in model container [2020-11-28 03:09:47,101 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:09:45" (2/3) ... [2020-11-28 03:09:47,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c95d496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:09:47, skipping insertion in model container [2020-11-28 03:09:47,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:47" (3/3) ... [2020-11-28 03:09:47,105 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2020-11-28 03:09:47,122 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-28 03:09:47,123 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:09:47,128 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 03:09:47,129 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-28 03:09:47,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,157 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,157 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,158 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,158 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,159 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,162 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,162 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,163 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-28 03:09:47,172 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2020-11-28 03:09:47,187 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-28 03:09:47,215 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:09:47,215 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:09:47,215 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:09:47,215 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:09:47,215 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:09:47,215 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:09:47,216 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:09:47,216 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:09:47,229 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-28 03:09:47,232 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 99 transitions, 206 flow [2020-11-28 03:09:47,235 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 99 transitions, 206 flow [2020-11-28 03:09:47,237 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 95 places, 99 transitions, 206 flow [2020-11-28 03:09:47,288 INFO L129 PetriNetUnfolder]: 7/113 cut-off events. [2020-11-28 03:09:47,288 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2020-11-28 03:09:47,292 INFO L80 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 113 events. 7/113 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 194 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-11-28 03:09:47,295 INFO L116 LiptonReduction]: Number of co-enabled transitions 238 [2020-11-28 03:09:50,124 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-11-28 03:09:50,270 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2020-11-28 03:09:50,903 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-28 03:09:51,037 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-11-28 03:09:51,370 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-11-28 03:09:51,772 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2020-11-28 03:09:52,096 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-11-28 03:09:52,362 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-11-28 03:09:52,603 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-11-28 03:09:52,609 INFO L131 LiptonReduction]: Checked pairs total: 302 [2020-11-28 03:09:52,610 INFO L133 LiptonReduction]: Total number of compositions: 130 [2020-11-28 03:09:52,616 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 38 flow [2020-11-28 03:09:52,626 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 23 states. [2020-11-28 03:09:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-11-28 03:09:52,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2020-11-28 03:09:52,634 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:52,635 INFO L422 BasicCegarLoop]: trace histogram [1] [2020-11-28 03:09:52,635 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:52,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:52,642 INFO L82 PathProgramCache]: Analyzing trace with hash 435, now seen corresponding path program 1 times [2020-11-28 03:09:52,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:52,654 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993987982] [2020-11-28 03:09:52,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:52,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993987982] [2020-11-28 03:09:52,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:52,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-11-28 03:09:52,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114592744] [2020-11-28 03:09:52,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 03:09:52,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:53,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 03:09:53,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:09:53,014 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 2 states. [2020-11-28 03:09:53,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:53,029 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2020-11-28 03:09:53,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 03:09:53,030 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2020-11-28 03:09:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:53,040 INFO L225 Difference]: With dead ends: 20 [2020-11-28 03:09:53,041 INFO L226 Difference]: Without dead ends: 13 [2020-11-28 03:09:53,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 03:09:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-28 03:09:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-28 03:09:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-28 03:09:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2020-11-28 03:09:53,079 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 1 [2020-11-28 03:09:53,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:53,080 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2020-11-28 03:09:53,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 03:09:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-28 03:09:53,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 03:09:53,081 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:53,081 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 03:09:53,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:09:53,082 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:53,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:53,083 INFO L82 PathProgramCache]: Analyzing trace with hash 433996, now seen corresponding path program 1 times [2020-11-28 03:09:53,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:53,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124890383] [2020-11-28 03:09:53,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:53,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:53,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124890383] [2020-11-28 03:09:53,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:53,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:09:53,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610757416] [2020-11-28 03:09:53,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:53,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:53,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:53,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:53,279 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2020-11-28 03:09:53,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:53,310 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-11-28 03:09:53,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:53,311 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-28 03:09:53,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:53,312 INFO L225 Difference]: With dead ends: 11 [2020-11-28 03:09:53,312 INFO L226 Difference]: Without dead ends: 10 [2020-11-28 03:09:53,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:53,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-28 03:09:53,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-28 03:09:53,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:09:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-28 03:09:53,316 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 3 [2020-11-28 03:09:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:53,316 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:09:53,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-28 03:09:53,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:09:53,317 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:53,317 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:09:53,317 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:09:53,318 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:53,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:53,319 INFO L82 PathProgramCache]: Analyzing trace with hash 413130641, now seen corresponding path program 1 times [2020-11-28 03:09:53,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:53,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429433330] [2020-11-28 03:09:53,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:53,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:09:53,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:09:53,467 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429433330] [2020-11-28 03:09:53,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:09:53,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:09:53,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703746227] [2020-11-28 03:09:53,468 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:09:53,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:09:53,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:09:53,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:53,470 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-11-28 03:09:53,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:09:53,485 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-11-28 03:09:53,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:09:53,486 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:09:53,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:09:53,486 INFO L225 Difference]: With dead ends: 10 [2020-11-28 03:09:53,486 INFO L226 Difference]: Without dead ends: 7 [2020-11-28 03:09:53,487 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:09:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-11-28 03:09:53,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-28 03:09:53,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-28 03:09:53,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-11-28 03:09:53,489 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 5 [2020-11-28 03:09:53,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:09:53,489 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-11-28 03:09:53,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:09:53,490 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-11-28 03:09:53,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:09:53,490 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:09:53,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:09:53,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:09:53,491 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:09:53,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:09:53,494 INFO L82 PathProgramCache]: Analyzing trace with hash -77847774, now seen corresponding path program 1 times [2020-11-28 03:09:53,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:09:53,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098606616] [2020-11-28 03:09:53,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:09:53,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:53,570 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:53,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:09:53,627 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:09:53,675 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:09:53,675 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:09:53,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:09:53,676 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-11-28 03:09:53,684 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [398] [398] L1734-->L1711: Formula: (and (= |ULTIMATE.start_reach_error_#t~nondet32.offset_Out-868415712| |ULTIMATE.start_reach_error_#t~nondet32.offset_In-868415712|) (= ~pdev~0_Out-868415712 1) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet34_Out-868415712| 2147483648)) (= |#pthreadsMutex_Out-868415712| (store |#pthreadsMutex_In-868415712| |~#mutex~0.base_In-868415712| (store (select |#pthreadsMutex_In-868415712| |~#mutex~0.base_In-868415712|) |~#mutex~0.offset_In-868415712| 0))) (<= |ULTIMATE.start_module_init_#t~nondet34_Out-868415712| 2147483647) (= |ULTIMATE.start_ldv_assert_#in~expression_Out-868415712| 1) (= ULTIMATE.start_ldv_assert_~expression_Out-868415712 |ULTIMATE.start_ldv_assert_#in~expression_Out-868415712|) (= |ULTIMATE.start_reach_error_#t~nondet32.base_In-868415712| |ULTIMATE.start_reach_error_#t~nondet32.base_Out-868415712|)) InVars {#pthreadsMutex=|#pthreadsMutex_In-868415712|, ~#mutex~0.base=|~#mutex~0.base_In-868415712|, ULTIMATE.start_reach_error_#t~nondet32.offset=|ULTIMATE.start_reach_error_#t~nondet32.offset_In-868415712|, ULTIMATE.start_reach_error_#t~nondet32.base=|ULTIMATE.start_reach_error_#t~nondet32.base_In-868415712|, ~#mutex~0.offset=|~#mutex~0.offset_In-868415712|} OutVars{ULTIMATE.start_module_init_#res=|ULTIMATE.start_module_init_#res_Out-868415712|, #pthreadsMutex=|#pthreadsMutex_Out-868415712|, ~#mutex~0.base=|~#mutex~0.base_In-868415712|, ~pdev~0=~pdev~0_Out-868415712, ULTIMATE.start_reach_error_#t~nondet32.offset=|ULTIMATE.start_reach_error_#t~nondet32.offset_Out-868415712|, ULTIMATE.start_module_init_#t~nondet35=|ULTIMATE.start_module_init_#t~nondet35_Out-868415712|, ULTIMATE.start_reach_error_#t~nondet32.base=|ULTIMATE.start_reach_error_#t~nondet32.base_Out-868415712|, ~#mutex~0.offset=|~#mutex~0.offset_In-868415712|, ULTIMATE.start_module_init_#t~nondet34=|ULTIMATE.start_module_init_#t~nondet34_Out-868415712|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_Out-868415712|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-868415712} AuxVars[] AssignedVars[ULTIMATE.start_module_init_#res, #pthreadsMutex, ~pdev~0, ULTIMATE.start_reach_error_#t~nondet32.offset, ULTIMATE.start_module_init_#t~nondet35, ULTIMATE.start_reach_error_#t~nondet32.base, ULTIMATE.start_module_init_#t~nondet34, ULTIMATE.start_ldv_assert_#in~expression, ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-11-28 03:09:53,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:09:53 BasicIcfg [2020-11-28 03:09:53,717 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:09:53,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:09:53,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:09:53,719 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:09:53,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:09:47" (3/4) ... [2020-11-28 03:09:53,722 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:09:53,724 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [398] [398] L1734-->L1711: Formula: (and (= |ULTIMATE.start_reach_error_#t~nondet32.offset_Out-868415712| |ULTIMATE.start_reach_error_#t~nondet32.offset_In-868415712|) (= ~pdev~0_Out-868415712 1) (<= 0 (+ |ULTIMATE.start_module_init_#t~nondet34_Out-868415712| 2147483648)) (= |#pthreadsMutex_Out-868415712| (store |#pthreadsMutex_In-868415712| |~#mutex~0.base_In-868415712| (store (select |#pthreadsMutex_In-868415712| |~#mutex~0.base_In-868415712|) |~#mutex~0.offset_In-868415712| 0))) (<= |ULTIMATE.start_module_init_#t~nondet34_Out-868415712| 2147483647) (= |ULTIMATE.start_ldv_assert_#in~expression_Out-868415712| 1) (= ULTIMATE.start_ldv_assert_~expression_Out-868415712 |ULTIMATE.start_ldv_assert_#in~expression_Out-868415712|) (= |ULTIMATE.start_reach_error_#t~nondet32.base_In-868415712| |ULTIMATE.start_reach_error_#t~nondet32.base_Out-868415712|)) InVars {#pthreadsMutex=|#pthreadsMutex_In-868415712|, ~#mutex~0.base=|~#mutex~0.base_In-868415712|, ULTIMATE.start_reach_error_#t~nondet32.offset=|ULTIMATE.start_reach_error_#t~nondet32.offset_In-868415712|, ULTIMATE.start_reach_error_#t~nondet32.base=|ULTIMATE.start_reach_error_#t~nondet32.base_In-868415712|, ~#mutex~0.offset=|~#mutex~0.offset_In-868415712|} OutVars{ULTIMATE.start_module_init_#res=|ULTIMATE.start_module_init_#res_Out-868415712|, #pthreadsMutex=|#pthreadsMutex_Out-868415712|, ~#mutex~0.base=|~#mutex~0.base_In-868415712|, ~pdev~0=~pdev~0_Out-868415712, ULTIMATE.start_reach_error_#t~nondet32.offset=|ULTIMATE.start_reach_error_#t~nondet32.offset_Out-868415712|, ULTIMATE.start_module_init_#t~nondet35=|ULTIMATE.start_module_init_#t~nondet35_Out-868415712|, ULTIMATE.start_reach_error_#t~nondet32.base=|ULTIMATE.start_reach_error_#t~nondet32.base_Out-868415712|, ~#mutex~0.offset=|~#mutex~0.offset_In-868415712|, ULTIMATE.start_module_init_#t~nondet34=|ULTIMATE.start_module_init_#t~nondet34_Out-868415712|, ULTIMATE.start_ldv_assert_#in~expression=|ULTIMATE.start_ldv_assert_#in~expression_Out-868415712|, ULTIMATE.start_ldv_assert_~expression=ULTIMATE.start_ldv_assert_~expression_Out-868415712} AuxVars[] AssignedVars[ULTIMATE.start_module_init_#res, #pthreadsMutex, ~pdev~0, ULTIMATE.start_reach_error_#t~nondet32.offset, ULTIMATE.start_module_init_#t~nondet35, ULTIMATE.start_reach_error_#t~nondet32.base, ULTIMATE.start_module_init_#t~nondet34, ULTIMATE.start_ldv_assert_#in~expression, ULTIMATE.start_ldv_assert_~expression] because there is no mapped edge [2020-11-28 03:09:53,798 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3a204e42-1e27-4a4a-81cb-994dafe2d17a/bin/uautomizer/witness.graphml [2020-11-28 03:09:53,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:09:53,800 INFO L168 Benchmark]: Toolchain (without parser) took 9980.02 ms. Allocated memory was 94.4 MB in the beginning and 211.8 MB in the end (delta: 117.4 MB). Free memory was 58.9 MB in the beginning and 129.4 MB in the end (delta: -70.5 MB). Peak memory consumption was 45.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,801 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 71.3 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:09:53,802 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1919.49 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.7 MB in the beginning and 77.9 MB in the end (delta: -19.2 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.96 ms. Allocated memory is still 121.6 MB. Free memory was 77.9 MB in the beginning and 74.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,803 INFO L168 Benchmark]: Boogie Preprocessor took 91.51 ms. Allocated memory is still 121.6 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,804 INFO L168 Benchmark]: RCFGBuilder took 1131.32 ms. Allocated memory is still 121.6 MB. Free memory was 72.7 MB in the beginning and 85.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,805 INFO L168 Benchmark]: TraceAbstraction took 6627.45 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 84.1 MB in the beginning and 131.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,806 INFO L168 Benchmark]: Witness Printer took 80.45 ms. Allocated memory is still 211.8 MB. Free memory was 131.5 MB in the beginning and 129.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:09:53,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 71.3 MB. Free memory is still 31.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1919.49 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 58.7 MB in the beginning and 77.9 MB in the end (delta: -19.2 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 120.96 ms. Allocated memory is still 121.6 MB. Free memory was 77.9 MB in the beginning and 74.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 91.51 ms. Allocated memory is still 121.6 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1131.32 ms. Allocated memory is still 121.6 MB. Free memory was 72.7 MB in the beginning and 85.2 MB in the end (delta: -12.5 MB). Peak memory consumption was 39.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 6627.45 ms. Allocated memory was 121.6 MB in the beginning and 211.8 MB in the end (delta: 90.2 MB). Free memory was 84.1 MB in the beginning and 131.5 MB in the end (delta: -47.4 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. * Witness Printer took 80.45 ms. Allocated memory is still 211.8 MB. Free memory was 131.5 MB in the beginning and 129.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 175 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 3 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.3s, 95 PlacesBefore, 17 PlacesAfterwards, 99 TransitionsBefore, 15 TransitionsAfterwards, 238 CoEnabledTransitionPairs, 7 FixpointIterations, 86 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 13 TrivialYvCompositions, 7 ConcurrentYvCompositions, 6 ChoiceCompositions, 130 TotalNumberOfCompositions, 302 MoverChecksTotal - CounterExampleResult [Line: 1693]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={7:0}, pdev=1, t1={9:0}] [L1713] 0 return 0; [L1734] COND FALSE 0 !(module_init()!=0) [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={7:0}, pdev=4, t1={9:0}] [L1702] 1 pdev = 6 [L1705] 1 return 0; [L1695] COND TRUE 0 !expression [L1693] COND FALSE 0 !(0) [L1693] 0 __assert_fail ("0", "race-1_3-join.c", 10, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.4s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...