./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_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_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/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_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/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_6788c05b-26ef-4cd7-8a38-85ce016378d6/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 c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a --- 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 10:36:45,024 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:36:45,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:36:45,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:36:45,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:36:45,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:36:45,105 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:36:45,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:36:45,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:36:45,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:36:45,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:36:45,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:36:45,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:36:45,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:36:45,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:36:45,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:36:45,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:36:45,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:36:45,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:36:45,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:36:45,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:36:45,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:36:45,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:36:45,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:36:45,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:36:45,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:36:45,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:36:45,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:36:45,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:36:45,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:36:45,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:36:45,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:36:45,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:36:45,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:36:45,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:36:45,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:36:45,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:36:45,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:36:45,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:36:45,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:36:45,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:36:45,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-10-17 10:36:45,257 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:36:45,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:36:45,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:36:45,258 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:36:45,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:36:45,259 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:36:45,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:36:45,261 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:36:45,261 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:36:45,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:36:45,262 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:36:45,263 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 10:36:45,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:36:45,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:36:45,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:36:45,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:36:45,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:36:45,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:36:45,264 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-10-17 10:36:45,265 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:36:45,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:36:45,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:36:45,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:36:45,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:36:45,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:36:45,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:36:45,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:36:45,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:36:45,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:36:45,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:36:45,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:36:45,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:36:45,270 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:36:45,270 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:36:45,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:36:45,270 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_6788c05b-26ef-4cd7-8a38-85ce016378d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c11b7127fb2beec6d5e726c9468c73fdf6ccc05ef40eceb17d287e75d34e535a [2022-10-17 10:36:45,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:36:45,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:36:45,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:36:45,571 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:36:45,572 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:36:45,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i [2022-10-17 10:36:45,649 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/data/83ebdf0c1/d7e8082f94b544eaa41e8d84e7b2da6c/FLAGce99f2047 [2022-10-17 10:36:46,300 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:36:46,300 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/sv-benchmarks/c/goblint-regression/04-mutex_06-ps_rc.i [2022-10-17 10:36:46,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/data/83ebdf0c1/d7e8082f94b544eaa41e8d84e7b2da6c/FLAGce99f2047 [2022-10-17 10:36:46,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/data/83ebdf0c1/d7e8082f94b544eaa41e8d84e7b2da6c [2022-10-17 10:36:46,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:36:46,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:36:46,500 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:36:46,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:36:46,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:36:46,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:36:46" (1/1) ... [2022-10-17 10:36:46,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791c2ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:46, skipping insertion in model container [2022-10-17 10:36:46,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:36:46" (1/1) ... [2022-10-17 10:36:46,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:36:46,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:36:47,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:36:47,309 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:36:47,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:36:47,480 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:36:47,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47 WrapperNode [2022-10-17 10:36:47,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:36:47,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:36:47,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:36:47,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:36:47,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,571 INFO L138 Inliner]: procedures = 266, calls = 24, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 57 [2022-10-17 10:36:47,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:36:47,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:36:47,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:36:47,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:36:47,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,621 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:36:47,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:36:47,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:36:47,638 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:36:47,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (1/1) ... [2022-10-17 10:36:47,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:36:47,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:36:47,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:36:47,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:36:47,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:36:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:36:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:36:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-10-17 10:36:47,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:36:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-10-17 10:36:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-10-17 10:36:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:36:47,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:36:47,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:36:47,745 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 10:36:48,001 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:36:48,003 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:36:48,278 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:36:48,287 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:36:48,287 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 10:36:48,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:48 BoogieIcfgContainer [2022-10-17 10:36:48,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:36:48,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:36:48,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:36:48,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:36:48,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:36:46" (1/3) ... [2022-10-17 10:36:48,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406050f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:36:48, skipping insertion in model container [2022-10-17 10:36:48,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:36:47" (2/3) ... [2022-10-17 10:36:48,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406050f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:36:48, skipping insertion in model container [2022-10-17 10:36:48,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:48" (3/3) ... [2022-10-17 10:36:48,301 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_06-ps_rc.i [2022-10-17 10:36:48,311 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-17 10:36:48,324 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:36:48,324 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-17 10:36:48,324 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-17 10:36:48,375 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-17 10:36:48,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 84 places, 83 transitions, 171 flow [2022-10-17 10:36:48,555 INFO L130 PetriNetUnfolder]: 3/82 cut-off events. [2022-10-17 10:36:48,559 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:48,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 82 events. 3/82 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. 0/75 useless extension candidates. Maximal degree in co-relation 48. Up to 2 conditions per place. [2022-10-17 10:36:48,566 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 83 transitions, 171 flow [2022-10-17 10:36:48,576 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 83 places, 82 transitions, 167 flow [2022-10-17 10:36:48,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:36:48,612 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;@1342d279, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:36:48,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-10-17 10:36:48,653 INFO L130 PetriNetUnfolder]: 0/43 cut-off events. [2022-10-17 10:36:48,654 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-10-17 10:36:48,654 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:48,655 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] [2022-10-17 10:36:48,656 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 10:36:48,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:48,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1641404404, now seen corresponding path program 1 times [2022-10-17 10:36:48,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:48,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455412605] [2022-10-17 10:36:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:48,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,075 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 10:36:49,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:49,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455412605] [2022-10-17 10:36:49,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455412605] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:49,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:49,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:49,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432582771] [2022-10-17 10:36:49,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:49,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:49,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:49,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:49,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:49,151 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 83 [2022-10-17 10:36:49,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 82 transitions, 167 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 10:36:49,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:49,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 83 [2022-10-17 10:36:49,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:49,353 INFO L130 PetriNetUnfolder]: 45/262 cut-off events. [2022-10-17 10:36:49,353 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-10-17 10:36:49,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 262 events. 45/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1020 event pairs, 15 based on Foata normal form. 0/228 useless extension candidates. Maximal degree in co-relation 318. Up to 54 conditions per place. [2022-10-17 10:36:49,362 INFO L137 encePairwiseOnDemand]: 75/83 looper letters, 17 selfloop transitions, 6 changer transitions 0/92 dead transitions. [2022-10-17 10:36:49,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 92 transitions, 233 flow [2022-10-17 10:36:49,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:49,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:49,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2022-10-17 10:36:49,382 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9437751004016064 [2022-10-17 10:36:49,383 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2022-10-17 10:36:49,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2022-10-17 10:36:49,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:49,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2022-10-17 10:36:49,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 10:36:49,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:49,408 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:49,410 INFO L175 Difference]: Start difference. First operand has 83 places, 82 transitions, 167 flow. Second operand 3 states and 235 transitions. [2022-10-17 10:36:49,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 92 transitions, 233 flow [2022-10-17 10:36:49,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 92 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-10-17 10:36:49,423 INFO L231 Difference]: Finished difference. Result has 86 places, 88 transitions, 218 flow [2022-10-17 10:36:49,425 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=218, PETRI_PLACES=86, PETRI_TRANSITIONS=88} [2022-10-17 10:36:49,431 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 3 predicate places. [2022-10-17 10:36:49,431 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 88 transitions, 218 flow [2022-10-17 10:36:49,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 10:36:49,432 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:49,432 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] [2022-10-17 10:36:49,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:36:49,433 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 10:36:49,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:49,434 INFO L85 PathProgramCache]: Analyzing trace with hash 163817509, now seen corresponding path program 1 times [2022-10-17 10:36:49,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:49,435 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615258530] [2022-10-17 10:36:49,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:49,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:49,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,625 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 10:36:49,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:49,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615258530] [2022-10-17 10:36:49,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615258530] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:49,626 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:49,626 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:49,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091459488] [2022-10-17 10:36:49,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:49,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:49,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:49,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:49,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:49,630 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 83 [2022-10-17 10:36:49,631 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 88 transitions, 218 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 10:36:49,631 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:49,631 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 83 [2022-10-17 10:36:49,631 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:49,777 INFO L130 PetriNetUnfolder]: 67/353 cut-off events. [2022-10-17 10:36:49,778 INFO L131 PetriNetUnfolder]: For 87/96 co-relation queries the response was YES. [2022-10-17 10:36:49,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 583 conditions, 353 events. 67/353 cut-off events. For 87/96 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1677 event pairs, 23 based on Foata normal form. 2/318 useless extension candidates. Maximal degree in co-relation 542. Up to 102 conditions per place. [2022-10-17 10:36:49,790 INFO L137 encePairwiseOnDemand]: 77/83 looper letters, 23 selfloop transitions, 7 changer transitions 2/98 dead transitions. [2022-10-17 10:36:49,790 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 98 transitions, 318 flow [2022-10-17 10:36:49,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:49,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:49,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 228 transitions. [2022-10-17 10:36:49,797 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9156626506024096 [2022-10-17 10:36:49,798 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 228 transitions. [2022-10-17 10:36:49,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 228 transitions. [2022-10-17 10:36:49,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:49,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 228 transitions. [2022-10-17 10:36:49,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 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 10:36:49,804 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:49,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:49,805 INFO L175 Difference]: Start difference. First operand has 86 places, 88 transitions, 218 flow. Second operand 3 states and 228 transitions. [2022-10-17 10:36:49,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 98 transitions, 318 flow [2022-10-17 10:36:49,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 98 transitions, 300 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:36:49,814 INFO L231 Difference]: Finished difference. Result has 88 places, 92 transitions, 260 flow [2022-10-17 10:36:49,814 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=88, PETRI_TRANSITIONS=92} [2022-10-17 10:36:49,815 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 5 predicate places. [2022-10-17 10:36:49,816 INFO L495 AbstractCegarLoop]: Abstraction has has 88 places, 92 transitions, 260 flow [2022-10-17 10:36:49,816 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 10:36:49,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:49,817 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 10:36:49,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:36:49,822 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 10:36:49,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:49,823 INFO L85 PathProgramCache]: Analyzing trace with hash 2144798248, now seen corresponding path program 1 times [2022-10-17 10:36:49,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:49,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253141375] [2022-10-17 10:36:49,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:49,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:49,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:49,950 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 10:36:49,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:49,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253141375] [2022-10-17 10:36:49,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253141375] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:49,951 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:49,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:36:49,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649507408] [2022-10-17 10:36:49,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:49,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:49,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:49,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:49,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:49,955 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 83 [2022-10-17 10:36:49,955 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 92 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 10:36:49,955 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:49,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 83 [2022-10-17 10:36:49,956 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:50,012 INFO L130 PetriNetUnfolder]: 19/269 cut-off events. [2022-10-17 10:36:50,013 INFO L131 PetriNetUnfolder]: For 43/43 co-relation queries the response was YES. [2022-10-17 10:36:50,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 394 conditions, 269 events. 19/269 cut-off events. For 43/43 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1174 event pairs, 2 based on Foata normal form. 1/251 useless extension candidates. Maximal degree in co-relation 350. Up to 28 conditions per place. [2022-10-17 10:36:50,015 INFO L137 encePairwiseOnDemand]: 80/83 looper letters, 6 selfloop transitions, 1 changer transitions 1/92 dead transitions. [2022-10-17 10:36:50,016 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 92 transitions, 276 flow [2022-10-17 10:36:50,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:50,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:50,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 231 transitions. [2022-10-17 10:36:50,018 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.927710843373494 [2022-10-17 10:36:50,018 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 231 transitions. [2022-10-17 10:36:50,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 231 transitions. [2022-10-17 10:36:50,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:50,019 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 231 transitions. [2022-10-17 10:36:50,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.0) internal successors, (231), 3 states have internal predecessors, (231), 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 10:36:50,022 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:50,022 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:50,022 INFO L175 Difference]: Start difference. First operand has 88 places, 92 transitions, 260 flow. Second operand 3 states and 231 transitions. [2022-10-17 10:36:50,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 92 transitions, 276 flow [2022-10-17 10:36:50,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 92 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-10-17 10:36:50,028 INFO L231 Difference]: Finished difference. Result has 89 places, 91 transitions, 249 flow [2022-10-17 10:36:50,029 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=249, PETRI_PLACES=89, PETRI_TRANSITIONS=91} [2022-10-17 10:36:50,030 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 6 predicate places. [2022-10-17 10:36:50,030 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 91 transitions, 249 flow [2022-10-17 10:36:50,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 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 10:36:50,031 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:50,031 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, 1, 1] [2022-10-17 10:36:50,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:36:50,032 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:36:50,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:50,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1743137408, now seen corresponding path program 1 times [2022-10-17 10:36:50,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:50,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991528608] [2022-10-17 10:36:50,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:50,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:36:50,107 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 10:36:50,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:36:50,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991528608] [2022-10-17 10:36:50,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991528608] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:36:50,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:36:50,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:36:50,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549728740] [2022-10-17 10:36:50,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:36:50,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:36:50,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:36:50,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:36:50,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:36:50,114 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 83 [2022-10-17 10:36:50,117 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 91 transitions, 249 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 10:36:50,117 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-10-17 10:36:50,117 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 83 [2022-10-17 10:36:50,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-10-17 10:36:50,243 INFO L130 PetriNetUnfolder]: 57/372 cut-off events. [2022-10-17 10:36:50,244 INFO L131 PetriNetUnfolder]: For 87/95 co-relation queries the response was YES. [2022-10-17 10:36:50,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 656 conditions, 372 events. 57/372 cut-off events. For 87/95 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1931 event pairs, 16 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 612. Up to 101 conditions per place. [2022-10-17 10:36:50,247 INFO L137 encePairwiseOnDemand]: 77/83 looper letters, 21 selfloop transitions, 7 changer transitions 10/102 dead transitions. [2022-10-17 10:36:50,247 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 102 transitions, 367 flow [2022-10-17 10:36:50,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:36:50,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-10-17 10:36:50,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 226 transitions. [2022-10-17 10:36:50,250 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9076305220883534 [2022-10-17 10:36:50,250 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 226 transitions. [2022-10-17 10:36:50,250 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 226 transitions. [2022-10-17 10:36:50,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-10-17 10:36:50,251 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 226 transitions. [2022-10-17 10:36:50,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.33333333333333) internal successors, (226), 3 states have internal predecessors, (226), 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 10:36:50,254 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:50,254 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 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 10:36:50,255 INFO L175 Difference]: Start difference. First operand has 89 places, 91 transitions, 249 flow. Second operand 3 states and 226 transitions. [2022-10-17 10:36:50,256 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 102 transitions, 367 flow [2022-10-17 10:36:50,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 102 transitions, 363 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-10-17 10:36:50,269 INFO L231 Difference]: Finished difference. Result has 91 places, 90 transitions, 277 flow [2022-10-17 10:36:50,270 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=245, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=91, PETRI_TRANSITIONS=90} [2022-10-17 10:36:50,272 INFO L287 CegarLoopForPetriNet]: 83 programPoint places, 8 predicate places. [2022-10-17 10:36:50,272 INFO L495 AbstractCegarLoop]: Abstraction has has 91 places, 90 transitions, 277 flow [2022-10-17 10:36:50,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 10:36:50,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-10-17 10:36:50,274 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, 1, 1, 1, 1, 1, 1] [2022-10-17 10:36:50,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:36:50,276 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-10-17 10:36:50,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:36:50,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1565000660, now seen corresponding path program 1 times [2022-10-17 10:36:50,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:36:50,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947180883] [2022-10-17 10:36:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:36:50,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:36:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:36:50,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:36:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:36:50,420 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:36:50,420 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:36:50,421 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2022-10-17 10:36:50,423 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2022-10-17 10:36:50,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-10-17 10:36:50,424 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2022-10-17 10:36:50,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2022-10-17 10:36:50,425 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2022-10-17 10:36:50,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2022-10-17 10:36:50,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:36:50,426 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-10-17 10:36:50,434 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-17 10:36:50,434 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:36:50,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:36:50 BasicIcfg [2022-10-17 10:36:50,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:36:50,511 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:36:50,511 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:36:50,511 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:36:50,512 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:36:48" (3/4) ... [2022-10-17 10:36:50,515 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-10-17 10:36:50,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:36:50,517 INFO L158 Benchmark]: Toolchain (without parser) took 4016.97ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 73.2MB in the beginning and 64.3MB in the end (delta: 8.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2022-10-17 10:36:50,517 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 70.6MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:36:50,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 982.46ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 54.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-10-17 10:36:50,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.33ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 51.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:36:50,519 INFO L158 Benchmark]: Boogie Preprocessor took 64.33ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 50.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:36:50,520 INFO L158 Benchmark]: RCFGBuilder took 652.40ms. Allocated memory is still 98.6MB. Free memory was 50.2MB in the beginning and 37.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:36:50,521 INFO L158 Benchmark]: TraceAbstraction took 2210.71ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 36.6MB in the beginning and 64.3MB in the end (delta: -27.7MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-10-17 10:36:50,521 INFO L158 Benchmark]: Witness Printer took 4.03ms. Allocated memory is still 146.8MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:36:50,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory was 70.6MB in the beginning and 70.6MB in the end (delta: 41.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 982.46ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 54.0MB in the end (delta: 19.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.33ms. Allocated memory is still 98.6MB. Free memory was 54.0MB in the beginning and 51.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.33ms. Allocated memory is still 98.6MB. Free memory was 51.8MB in the beginning and 50.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.40ms. Allocated memory is still 98.6MB. Free memory was 50.2MB in the beginning and 37.1MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2210.71ms. Allocated memory was 98.6MB in the beginning and 146.8MB in the end (delta: 48.2MB). Free memory was 36.6MB in the beginning and 64.3MB in the end (delta: -27.7MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Witness Printer took 4.03ms. Allocated memory is still 146.8MB. Free memory is still 64.3MB. 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}] [L930] 0 pthread_mutex_t n = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [glob=0, m={4:0}, n={5:0}] [L938] 0 int i = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=1, glob=0, i=1, m={4:0}, n={5:0}] [L939] 0 pthread_t id; VAL [glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L940] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L942] COND TRUE 0 \read(i) VAL [arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L945] COND TRUE 0 \read(i) VAL [arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, m={4:0}, n={5:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=0, i=1, id={6:0}, m={4:0}, n={5:0}] [L933] 1 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, m={4:0}, n={5:0}] [L946] 0 glob++ VAL [arg={0:0}, arg={0:0}, glob=1, glob++=0, glob++=25, i=1, id={6:0}, m={4:0}, n={5:0}] Now there is a data race on ~glob~0 between C: glob++ [933] 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: 940]: 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: 933]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 933]: 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, 100 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: 2.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 48 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=277occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 0.4s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 185 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 10:36:50,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6788c05b-26ef-4cd7-8a38-85ce016378d6/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