./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:42:27,920 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:42:27,922 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:42:27,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:42:27,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:42:27,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:42:27,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:42:27,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:42:27,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:42:27,974 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:42:27,975 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:42:27,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:42:27,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:42:27,978 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:42:27,980 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:42:27,981 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:42:27,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:42:27,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:42:27,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:42:27,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:42:27,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:42:27,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:42:27,993 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:42:27,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:42:27,999 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:42:27,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:42:28,000 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:42:28,001 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:42:28,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:42:28,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:42:28,003 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:42:28,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:42:28,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:42:28,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:42:28,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:42:28,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:42:28,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:42:28,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:42:28,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:42:28,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:42:28,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:42:28,012 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:42:28,038 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:42:28,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:42:28,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:42:28,039 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:42:28,040 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:42:28,040 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:42:28,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:42:28,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:42:28,041 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:42:28,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:42:28,041 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:42:28,042 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:42:28,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:42:28,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:42:28,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:42:28,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:42:28,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:42:28,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:42:28,043 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:42:28,043 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:42:28,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:42:28,044 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:42:28,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:42:28,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:42:28,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:42:28,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:42:28,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:28,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:42:28,053 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:42:28,053 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:42:28,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:42:28,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:42:28,054 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:42:28,054 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:42:28,054 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:42:28,054 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_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6ac8e3fa6c8942d1934329d4aab2bad69a86bc8873927fe052914d5204c0486 [2022-10-17 10:42:28,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:42:28,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:42:28,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:42:28,321 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:42:28,322 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:42:28,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2022-10-17 10:42:28,411 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/data/948068421/1317b7bfe2d247b78d3b0b6b8138287d/FLAGaebbafa87 [2022-10-17 10:42:28,978 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:42:28,981 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/sv-benchmarks/c/goblint-regression/04-mutex_16-ps_add1_rc.i [2022-10-17 10:42:28,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/data/948068421/1317b7bfe2d247b78d3b0b6b8138287d/FLAGaebbafa87 [2022-10-17 10:42:29,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/data/948068421/1317b7bfe2d247b78d3b0b6b8138287d [2022-10-17 10:42:29,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:42:29,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:42:29,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:29,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:42:29,257 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:42:29,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:29" (1/1) ... [2022-10-17 10:42:29,259 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f6cb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:29, skipping insertion in model container [2022-10-17 10:42:29,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:29" (1/1) ... [2022-10-17 10:42:29,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:42:29,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:42:29,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:29,936 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:42:30,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:30,063 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:42:30,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30 WrapperNode [2022-10-17 10:42:30,064 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:30,065 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:30,065 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:42:30,065 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:42:30,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,113 INFO L138 Inliner]: procedures = 266, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2022-10-17 10:42:30,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:30,114 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:42:30,114 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:42:30,114 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:42:30,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,128 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,134 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:42:30,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:42:30,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:42:30,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:42:30,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (1/1) ... [2022-10-17 10:42:30,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:30,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:30,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:30,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:42:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:42:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:42:30,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:42:30,247 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:42:30,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:42:30,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:42:30,249 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-17 10:42:30,388 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:42:30,390 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:42:30,589 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:42:30,595 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:42:30,595 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:42:30,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:30 BoogieIcfgContainer [2022-10-17 10:42:30,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:42:30,599 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:42:30,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:42:30,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:42:30,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:42:29" (1/3) ... [2022-10-17 10:42:30,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17606f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:30, skipping insertion in model container [2022-10-17 10:42:30,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:30" (2/3) ... [2022-10-17 10:42:30,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17606f56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:30, skipping insertion in model container [2022-10-17 10:42:30,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:30" (3/3) ... [2022-10-17 10:42:30,609 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_16-ps_add1_rc.i [2022-10-17 10:42:30,618 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:42:30,636 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:42:30,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-17 10:42:30,636 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:42:30,717 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:42:30,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 83 places, 82 transitions, 169 flow [2022-10-17 10:42:30,821 INFO L130 PetriNetUnfolder]: 3/81 cut-off events. [2022-10-17 10:42:30,821 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:42:30,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 3/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 101 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2022-10-17 10:42:30,825 INFO L82 GeneralOperation]: Start removeDead. Operand has 83 places, 82 transitions, 169 flow [2022-10-17 10:42:30,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 82 places, 81 transitions, 165 flow [2022-10-17 10:42:30,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:42:30,848 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1ad244ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:42:30,848 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:42:30,863 INFO L130 PetriNetUnfolder]: 0/37 cut-off events. [2022-10-17 10:42:30,863 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:42:30,863 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:30,864 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:30,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:30,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:30,870 INFO L85 PathProgramCache]: Analyzing trace with hash 634198338, now seen corresponding path program 1 times [2022-10-17 10:42:30,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:30,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166131194] [2022-10-17 10:42:30,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:30,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:31,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:31,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:31,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:31,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166131194] [2022-10-17 10:42:31,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166131194] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:31,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:31,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:31,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849196709] [2022-10-17 10:42:31,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:31,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:42:31,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:31,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:42:31,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:42:31,238 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 82 [2022-10-17 10:42:31,241 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 81 transitions, 165 flow. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,241 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:31,242 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 82 [2022-10-17 10:42:31,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:31,372 INFO L130 PetriNetUnfolder]: 45/271 cut-off events. [2022-10-17 10:42:31,372 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:42:31,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 271 events. 45/271 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1047 event pairs, 12 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 334. Up to 54 conditions per place. [2022-10-17 10:42:31,378 INFO L137 encePairwiseOnDemand]: 74/82 looper letters, 17 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2022-10-17 10:42:31,378 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 91 transitions, 231 flow [2022-10-17 10:42:31,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:42:31,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:42:31,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 232 transitions. [2022-10-17 10:42:31,392 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.943089430894309 [2022-10-17 10:42:31,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 232 transitions. [2022-10-17 10:42:31,394 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 232 transitions. [2022-10-17 10:42:31,396 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:31,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 232 transitions. [2022-10-17 10:42:31,401 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,407 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,409 INFO L175 Difference]: Start difference. First operand has 82 places, 81 transitions, 165 flow. Second operand 3 states and 232 transitions. [2022-10-17 10:42:31,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 91 transitions, 231 flow [2022-10-17 10:42:31,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 91 transitions, 230 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:42:31,418 INFO L231 Difference]: Finished difference. Result has 85 places, 87 transitions, 216 flow [2022-10-17 10:42:31,420 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=85, PETRI_TRANSITIONS=87} [2022-10-17 10:42:31,424 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 3 predicate places. [2022-10-17 10:42:31,424 INFO L495 AbstractCegarLoop]: Abstraction has has 85 places, 87 transitions, 216 flow [2022-10-17 10:42:31,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,425 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:31,425 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:31,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:42:31,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:31,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:31,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1742084075, now seen corresponding path program 1 times [2022-10-17 10:42:31,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:31,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405357537] [2022-10-17 10:42:31,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:31,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:31,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:31,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405357537] [2022-10-17 10:42:31,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405357537] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:31,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:31,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:31,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749565160] [2022-10-17 10:42:31,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:31,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:42:31,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:31,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:42:31,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:42:31,555 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 82 [2022-10-17 10:42:31,555 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 87 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,555 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:31,556 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 82 [2022-10-17 10:42:31,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:31,738 INFO L130 PetriNetUnfolder]: 67/376 cut-off events. [2022-10-17 10:42:31,739 INFO L131 PetriNetUnfolder]: For 90/110 co-relation queries the response was YES. [2022-10-17 10:42:31,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 606 conditions, 376 events. 67/376 cut-off events. For 90/110 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1828 event pairs, 20 based on Foata normal form. 3/341 useless extension candidates. Maximal degree in co-relation 572. Up to 102 conditions per place. [2022-10-17 10:42:31,747 INFO L137 encePairwiseOnDemand]: 76/82 looper letters, 23 selfloop transitions, 7 changer transitions 2/97 dead transitions. [2022-10-17 10:42:31,748 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 97 transitions, 316 flow [2022-10-17 10:42:31,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:42:31,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:42:31,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2022-10-17 10:42:31,755 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9146341463414634 [2022-10-17 10:42:31,756 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2022-10-17 10:42:31,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2022-10-17 10:42:31,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:31,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2022-10-17 10:42:31,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,763 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,765 INFO L175 Difference]: Start difference. First operand has 85 places, 87 transitions, 216 flow. Second operand 3 states and 225 transitions. [2022-10-17 10:42:31,765 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 97 transitions, 316 flow [2022-10-17 10:42:31,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 97 transitions, 298 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:42:31,773 INFO L231 Difference]: Finished difference. Result has 87 places, 91 transitions, 258 flow [2022-10-17 10:42:31,774 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=258, PETRI_PLACES=87, PETRI_TRANSITIONS=91} [2022-10-17 10:42:31,775 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 5 predicate places. [2022-10-17 10:42:31,775 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 91 transitions, 258 flow [2022-10-17 10:42:31,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:31,777 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:31,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:42:31,778 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:31,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash -859917457, now seen corresponding path program 1 times [2022-10-17 10:42:31,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:31,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76758783] [2022-10-17 10:42:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:31,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:31,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:31,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76758783] [2022-10-17 10:42:31,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76758783] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:31,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:31,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:31,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39771871] [2022-10-17 10:42:31,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:31,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:42:31,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:31,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:42:31,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:42:31,915 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 82 [2022-10-17 10:42:31,916 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 91 transitions, 258 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:31,916 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:42:31,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 82 [2022-10-17 10:42:31,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:42:32,064 INFO L130 PetriNetUnfolder]: 65/348 cut-off events. [2022-10-17 10:42:32,064 INFO L131 PetriNetUnfolder]: For 155/174 co-relation queries the response was YES. [2022-10-17 10:42:32,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 657 conditions, 348 events. 65/348 cut-off events. For 155/174 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1631 event pairs, 16 based on Foata normal form. 0/327 useless extension candidates. Maximal degree in co-relation 621. Up to 101 conditions per place. [2022-10-17 10:42:32,068 INFO L137 encePairwiseOnDemand]: 76/82 looper letters, 27 selfloop transitions, 8 changer transitions 3/102 dead transitions. [2022-10-17 10:42:32,068 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 102 transitions, 382 flow [2022-10-17 10:42:32,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:42:32,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:42:32,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 223 transitions. [2022-10-17 10:42:32,070 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9065040650406504 [2022-10-17 10:42:32,070 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 223 transitions. [2022-10-17 10:42:32,070 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 223 transitions. [2022-10-17 10:42:32,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:42:32,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 223 transitions. [2022-10-17 10:42:32,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 74.33333333333333) internal successors, (223), 3 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:32,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:32,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:32,073 INFO L175 Difference]: Start difference. First operand has 87 places, 91 transitions, 258 flow. Second operand 3 states and 223 transitions. [2022-10-17 10:42:32,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 102 transitions, 382 flow [2022-10-17 10:42:32,077 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 102 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:42:32,079 INFO L231 Difference]: Finished difference. Result has 89 places, 93 transitions, 290 flow [2022-10-17 10:42:32,080 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=290, PETRI_PLACES=89, PETRI_TRANSITIONS=93} [2022-10-17 10:42:32,080 INFO L287 CegarLoopForPetriNet]: 82 programPoint places, 7 predicate places. [2022-10-17 10:42:32,081 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 93 transitions, 290 flow [2022-10-17 10:42:32,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:42:32,081 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:42:32,081 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:32,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:42:32,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:42:32,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:32,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1641556126, now seen corresponding path program 1 times [2022-10-17 10:42:32,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:32,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416090811] [2022-10-17 10:42:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:32,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:32,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:42:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:42:32,166 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:42:32,167 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:42:32,168 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-10-17 10:42:32,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-10-17 10:42:32,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-10-17 10:42:32,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-10-17 10:42:32,180 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-10-17 10:42:32,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-10-17 10:42:32,181 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-10-17 10:42:32,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:42:32,181 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-10-17 10:42:32,191 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 10:42:32,192 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:42:32,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:42:32 BasicIcfg [2022-10-17 10:42:32,260 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:42:32,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:42:32,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:42:32,264 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:42:32,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:30" (3/4) ... [2022-10-17 10:42:32,268 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:42:32,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:42:32,269 INFO L158 Benchmark]: Toolchain (without parser) took 3017.14ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 57.6MB in the beginning and 57.2MB in the end (delta: 358.4kB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-10-17 10:42:32,272 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:42:32,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.73ms. Allocated memory is still 102.8MB. Free memory was 57.4MB in the beginning and 58.5MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:42:32,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.27ms. Allocated memory is still 102.8MB. Free memory was 58.5MB in the beginning and 56.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:42:32,276 INFO L158 Benchmark]: Boogie Preprocessor took 28.26ms. Allocated memory is still 102.8MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:42:32,277 INFO L158 Benchmark]: RCFGBuilder took 454.40ms. Allocated memory is still 102.8MB. Free memory was 54.8MB in the beginning and 42.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:42:32,278 INFO L158 Benchmark]: TraceAbstraction took 1661.25ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 41.5MB in the beginning and 57.2MB in the end (delta: -15.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-10-17 10:42:32,278 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 127.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:42:32,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.73ms. Allocated memory is still 102.8MB. Free memory was 57.4MB in the beginning and 58.5MB in the end (delta: -1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.27ms. Allocated memory is still 102.8MB. Free memory was 58.5MB in the beginning and 56.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.26ms. Allocated memory is still 102.8MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 454.40ms. Allocated memory is still 102.8MB. Free memory was 54.8MB in the beginning and 42.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1661.25ms. Allocated memory was 102.8MB in the beginning and 127.9MB in the end (delta: 25.2MB). Free memory was 41.5MB in the beginning and 57.2MB in the end (delta: -15.7MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 127.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 946]: Data race detected Data race detected The following path leads to a data race: [L928] 0 int glob; VAL [glob=0] [L929] 0 pthread_mutex_t m = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={4:0}] [L937] 0 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, glob=0, i=0, m={4:0}] [L938] 0 pthread_t id; VAL [glob=0, i=0, id={5:0}, m={4:0}] [L939] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=0, id={5:0}, m={4:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L941] COND FALSE 0 !(\read(i)) VAL [arg={0:0}, glob=0, i=0, id={5:0}, m={4:0}] [L944] 0 i++ VAL [arg={0:0}, glob=0, i=1, id={5:0}, m={4:0}] [L945] COND TRUE 0 \read(i) VAL [arg={0:0}, glob=0, i=1, id={5:0}, m={4:0}] [L932] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, m={4:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={5:0}, m={4:0}] [L932] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=25, glob++=0, m={4:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=25, glob++=0, i=1, id={5:0}, m={4:0}] Now there is a data race on ~glob~0 between C: glob++ [932] and C: glob++ [946] - UnprovableResult [Line: 946]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 99 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 59 IncrementalHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 40 mSDtfsCounter, 59 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=290occurred in iteration=3, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 159 NumberOfCodeBlocks, 159 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 115 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 could not prove your program: unable to determine feasibility of some traces [2022-10-17 10:42:32,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03e58ef0-28a1-491b-99c6-fb0368b8a116/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE