./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN --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 257fb96430b0f36c2bbaa69cb6381ae36a61b3597c5e89eeb3224bf08a96c8c2 --- 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-6b4ec56 [2022-11-20 11:14:25,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:14:25,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:14:25,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:14:25,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:14:25,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:14:25,273 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:14:25,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:14:25,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:14:25,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:14:25,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:14:25,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:14:25,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:14:25,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:14:25,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:14:25,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:14:25,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:14:25,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:14:25,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:14:25,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:14:25,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:14:25,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:14:25,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:14:25,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:14:25,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:14:25,295 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:14:25,295 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:14:25,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:14:25,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:14:25,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:14:25,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:14:25,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:14:25,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:14:25,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:14:25,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:14:25,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:14:25,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:14:25,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:14:25,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:14:25,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:14:25,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:14:25,306 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-20 11:14:25,336 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:14:25,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:14:25,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:14:25,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:14:25,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:14:25,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:14:25,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:14:25,338 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:14:25,339 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:14:25,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:14:25,339 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:14:25,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:14:25,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:14:25,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:14:25,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:14:25,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:14:25,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:14:25,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:14:25,341 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-20 11:14:25,341 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:14:25,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:14:25,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:14:25,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:14:25,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:14:25,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:14:25,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:14:25,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:14:25,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:14:25,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:14:25,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:14:25,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:14:25,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:14:25,349 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:14:25,349 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:14:25,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:14:25,349 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_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 257fb96430b0f36c2bbaa69cb6381ae36a61b3597c5e89eeb3224bf08a96c8c2 [2022-11-20 11:14:25,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:14:25,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:14:25,668 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:14:25,669 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:14:25,669 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:14:25,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i [2022-11-20 11:14:28,797 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:14:29,070 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:14:29,071 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/sv-benchmarks/c/goblint-regression/04-mutex_11-ptr_rc.i [2022-11-20 11:14:29,086 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/data/85ea58a47/c787450e071648e3bb0b08bb262382b1/FLAG277304101 [2022-11-20 11:14:29,109 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/data/85ea58a47/c787450e071648e3bb0b08bb262382b1 [2022-11-20 11:14:29,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:14:29,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:14:29,121 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:14:29,121 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:14:29,125 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:14:29,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78638b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29, skipping insertion in model container [2022-11-20 11:14:29,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:14:29,175 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:14:29,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:14:29,686 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:14:29,727 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:14:29,796 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:14:29,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29 WrapperNode [2022-11-20 11:14:29,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:14:29,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:14:29,798 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:14:29,798 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:14:29,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,862 INFO L138 Inliner]: procedures = 262, calls = 28, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2022-11-20 11:14:29,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:14:29,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:14:29,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:14:29,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:14:29,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,906 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,909 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:14:29,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:14:29,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:14:29,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:14:29,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (1/1) ... [2022-11-20 11:14:29,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:14:29,948 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:14:29,962 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:14:29,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:14:29,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:14:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:14:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:14:29,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:14:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:14:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:14:29,999 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-20 11:14:29,999 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-20 11:14:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:14:30,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:14:30,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:14:30,002 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:14:30,179 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:14:30,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:14:30,453 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:14:30,460 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:14:30,461 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:14:30,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:30 BoogieIcfgContainer [2022-11-20 11:14:30,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:14:30,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:14:30,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:14:30,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:14:30,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:14:29" (1/3) ... [2022-11-20 11:14:30,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201f7729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:14:30, skipping insertion in model container [2022-11-20 11:14:30,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:14:29" (2/3) ... [2022-11-20 11:14:30,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201f7729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:14:30, skipping insertion in model container [2022-11-20 11:14:30,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:30" (3/3) ... [2022-11-20 11:14:30,473 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_11-ptr_rc.i [2022-11-20 11:14:30,482 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 11:14:30,493 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:14:30,493 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-11-20 11:14:30,493 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:14:30,627 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-20 11:14:30,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 96 places, 92 transitions, 192 flow [2022-11-20 11:14:30,714 INFO L130 PetriNetUnfolder]: 0/91 cut-off events. [2022-11-20 11:14:30,714 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:14:30,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 0/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-11-20 11:14:30,717 INFO L82 GeneralOperation]: Start removeDead. Operand has 96 places, 92 transitions, 192 flow [2022-11-20 11:14:30,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 83 transitions, 169 flow [2022-11-20 11:14:30,731 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:14:30,738 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;@37858f18, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:14:30,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-20 11:14:30,772 INFO L130 PetriNetUnfolder]: 0/48 cut-off events. [2022-11-20 11:14:30,772 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 11:14:30,773 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:14:30,773 INFO L209 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] [2022-11-20 11:14:30,774 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:14:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash -901473782, now seen corresponding path program 1 times [2022-11-20 11:14:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:30,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292731305] [2022-11-20 11:14:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:14:31,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:14:31,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292731305] [2022-11-20 11:14:31,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292731305] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:31,842 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:31,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:14:31,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036912870] [2022-11-20 11:14:31,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:31,855 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:14:31,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:14:31,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:14:31,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:14:31,920 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 92 [2022-11-20 11:14:31,924 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 83 transitions, 169 flow. Second operand has 6 states, 6 states have (on average 58.333333333333336) internal successors, (350), 6 states have internal predecessors, (350), 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) [2022-11-20 11:14:31,925 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:14:31,925 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 92 [2022-11-20 11:14:31,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:14:32,547 INFO L130 PetriNetUnfolder]: 329/879 cut-off events. [2022-11-20 11:14:32,547 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-20 11:14:32,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1582 conditions, 879 events. 329/879 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4699 event pairs, 152 based on Foata normal form. 0/784 useless extension candidates. Maximal degree in co-relation 1546. Up to 489 conditions per place. [2022-11-20 11:14:32,579 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 90 selfloop transitions, 22 changer transitions 0/161 dead transitions. [2022-11-20 11:14:32,579 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 161 transitions, 549 flow [2022-11-20 11:14:32,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:14:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:14:32,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 455 transitions. [2022-11-20 11:14:32,597 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8242753623188406 [2022-11-20 11:14:32,598 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 455 transitions. [2022-11-20 11:14:32,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 455 transitions. [2022-11-20 11:14:32,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:14:32,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 455 transitions. [2022-11-20 11:14:32,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 75.83333333333333) internal successors, (455), 6 states have internal predecessors, (455), 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) [2022-11-20 11:14:32,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:32,614 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:32,616 INFO L175 Difference]: Start difference. First operand has 87 places, 83 transitions, 169 flow. Second operand 6 states and 455 transitions. [2022-11-20 11:14:32,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 161 transitions, 549 flow [2022-11-20 11:14:32,621 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 161 transitions, 548 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 11:14:32,624 INFO L231 Difference]: Finished difference. Result has 96 places, 104 transitions, 318 flow [2022-11-20 11:14:32,627 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=318, PETRI_PLACES=96, PETRI_TRANSITIONS=104} [2022-11-20 11:14:32,631 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 9 predicate places. [2022-11-20 11:14:32,632 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 104 transitions, 318 flow [2022-11-20 11:14:32,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.333333333333336) internal successors, (350), 6 states have internal predecessors, (350), 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) [2022-11-20 11:14:32,632 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:14:32,633 INFO L209 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] [2022-11-20 11:14:32,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:14:32,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:14:32,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash -285264551, now seen corresponding path program 1 times [2022-11-20 11:14:32,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:32,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206578861] [2022-11-20 11:14:32,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:32,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:32,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:14:32,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:14:32,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206578861] [2022-11-20 11:14:32,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206578861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:32,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:32,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:14:32,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292712332] [2022-11-20 11:14:32,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:32,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:14:32,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:14:32,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:14:32,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:14:32,944 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 92 [2022-11-20 11:14:32,944 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 104 transitions, 318 flow. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2022-11-20 11:14:32,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:14:32,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 92 [2022-11-20 11:14:32,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:14:33,277 INFO L130 PetriNetUnfolder]: 329/900 cut-off events. [2022-11-20 11:14:33,277 INFO L131 PetriNetUnfolder]: For 374/380 co-relation queries the response was YES. [2022-11-20 11:14:33,279 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2014 conditions, 900 events. 329/900 cut-off events. For 374/380 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 4888 event pairs, 146 based on Foata normal form. 0/825 useless extension candidates. Maximal degree in co-relation 1972. Up to 574 conditions per place. [2022-11-20 11:14:33,284 INFO L137 encePairwiseOnDemand]: 81/92 looper letters, 85 selfloop transitions, 26 changer transitions 0/158 dead transitions. [2022-11-20 11:14:33,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 158 transitions, 738 flow [2022-11-20 11:14:33,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:14:33,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:14:33,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 421 transitions. [2022-11-20 11:14:33,287 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7626811594202898 [2022-11-20 11:14:33,288 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 421 transitions. [2022-11-20 11:14:33,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 421 transitions. [2022-11-20 11:14:33,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:14:33,288 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 421 transitions. [2022-11-20 11:14:33,290 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 70.16666666666667) internal successors, (421), 6 states have internal predecessors, (421), 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) [2022-11-20 11:14:33,292 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:33,292 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:33,292 INFO L175 Difference]: Start difference. First operand has 96 places, 104 transitions, 318 flow. Second operand 6 states and 421 transitions. [2022-11-20 11:14:33,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 158 transitions, 738 flow [2022-11-20 11:14:33,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 158 transitions, 738 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:14:33,299 INFO L231 Difference]: Finished difference. Result has 106 places, 125 transitions, 502 flow [2022-11-20 11:14:33,299 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=502, PETRI_PLACES=106, PETRI_TRANSITIONS=125} [2022-11-20 11:14:33,300 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 19 predicate places. [2022-11-20 11:14:33,300 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 125 transitions, 502 flow [2022-11-20 11:14:33,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 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) [2022-11-20 11:14:33,301 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:14:33,301 INFO L209 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] [2022-11-20 11:14:33,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:14:33,302 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:14:33,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:33,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1911630747, now seen corresponding path program 1 times [2022-11-20 11:14:33,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:33,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287807540] [2022-11-20 11:14:33,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:33,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:14:33,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:14:33,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287807540] [2022-11-20 11:14:33,627 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287807540] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:33,628 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:33,628 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:14:33,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331409760] [2022-11-20 11:14:33,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:33,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:14:33,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:14:33,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:14:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:14:33,633 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 92 [2022-11-20 11:14:33,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 125 transitions, 502 flow. Second operand has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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) [2022-11-20 11:14:33,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:14:33,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 92 [2022-11-20 11:14:33,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:14:34,297 INFO L130 PetriNetUnfolder]: 485/1239 cut-off events. [2022-11-20 11:14:34,298 INFO L131 PetriNetUnfolder]: For 768/774 co-relation queries the response was YES. [2022-11-20 11:14:34,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3158 conditions, 1239 events. 485/1239 cut-off events. For 768/774 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 7079 event pairs, 179 based on Foata normal form. 0/1148 useless extension candidates. Maximal degree in co-relation 3113. Up to 860 conditions per place. [2022-11-20 11:14:34,310 INFO L137 encePairwiseOnDemand]: 73/92 looper letters, 93 selfloop transitions, 69 changer transitions 4/213 dead transitions. [2022-11-20 11:14:34,311 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 213 transitions, 1170 flow [2022-11-20 11:14:34,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:14:34,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:14:34,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 444 transitions. [2022-11-20 11:14:34,313 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8043478260869565 [2022-11-20 11:14:34,314 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 444 transitions. [2022-11-20 11:14:34,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 444 transitions. [2022-11-20 11:14:34,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:14:34,315 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 444 transitions. [2022-11-20 11:14:34,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 74.0) internal successors, (444), 6 states have internal predecessors, (444), 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) [2022-11-20 11:14:34,318 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:34,318 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:34,319 INFO L175 Difference]: Start difference. First operand has 106 places, 125 transitions, 502 flow. Second operand 6 states and 444 transitions. [2022-11-20 11:14:34,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 213 transitions, 1170 flow [2022-11-20 11:14:34,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 213 transitions, 1170 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 11:14:34,335 INFO L231 Difference]: Finished difference. Result has 116 places, 188 transitions, 1088 flow [2022-11-20 11:14:34,336 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1088, PETRI_PLACES=116, PETRI_TRANSITIONS=188} [2022-11-20 11:14:34,339 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 29 predicate places. [2022-11-20 11:14:34,339 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 188 transitions, 1088 flow [2022-11-20 11:14:34,339 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 57.5) internal successors, (345), 6 states have internal predecessors, (345), 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) [2022-11-20 11:14:34,339 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:14:34,340 INFO L209 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] [2022-11-20 11:14:34,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:14:34,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:14:34,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:34,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1795893048, now seen corresponding path program 1 times [2022-11-20 11:14:34,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:34,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713436433] [2022-11-20 11:14:34,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:34,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:14:34,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:14:34,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:14:34,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713436433] [2022-11-20 11:14:34,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713436433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:14:34,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:14:34,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 11:14:34,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716281441] [2022-11-20 11:14:34,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:14:34,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 11:14:34,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:14:34,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 11:14:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-20 11:14:34,692 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 92 [2022-11-20 11:14:34,693 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 188 transitions, 1088 flow. Second operand has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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) [2022-11-20 11:14:34,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 11:14:34,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 92 [2022-11-20 11:14:34,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 11:14:35,236 INFO L130 PetriNetUnfolder]: 545/1369 cut-off events. [2022-11-20 11:14:35,237 INFO L131 PetriNetUnfolder]: For 1793/1804 co-relation queries the response was YES. [2022-11-20 11:14:35,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4468 conditions, 1369 events. 545/1369 cut-off events. For 1793/1804 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 8099 event pairs, 150 based on Foata normal form. 0/1314 useless extension candidates. Maximal degree in co-relation 4415. Up to 987 conditions per place. [2022-11-20 11:14:35,251 INFO L137 encePairwiseOnDemand]: 77/92 looper letters, 151 selfloop transitions, 67 changer transitions 0/263 dead transitions. [2022-11-20 11:14:35,251 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 263 transitions, 1950 flow [2022-11-20 11:14:35,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 11:14:35,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-20 11:14:35,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 409 transitions. [2022-11-20 11:14:35,253 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7409420289855072 [2022-11-20 11:14:35,254 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 409 transitions. [2022-11-20 11:14:35,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 409 transitions. [2022-11-20 11:14:35,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 11:14:35,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 409 transitions. [2022-11-20 11:14:35,256 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.16666666666667) internal successors, (409), 6 states have internal predecessors, (409), 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) [2022-11-20 11:14:35,258 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:35,259 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 92.0) internal successors, (644), 7 states have internal predecessors, (644), 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) [2022-11-20 11:14:35,259 INFO L175 Difference]: Start difference. First operand has 116 places, 188 transitions, 1088 flow. Second operand 6 states and 409 transitions. [2022-11-20 11:14:35,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 263 transitions, 1950 flow [2022-11-20 11:14:35,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 263 transitions, 1886 flow, removed 32 selfloop flow, removed 0 redundant places. [2022-11-20 11:14:35,294 INFO L231 Difference]: Finished difference. Result has 126 places, 241 transitions, 1676 flow [2022-11-20 11:14:35,295 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=1030, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1676, PETRI_PLACES=126, PETRI_TRANSITIONS=241} [2022-11-20 11:14:35,296 INFO L288 CegarLoopForPetriNet]: 87 programPoint places, 39 predicate places. [2022-11-20 11:14:35,297 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 241 transitions, 1676 flow [2022-11-20 11:14:35,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 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) [2022-11-20 11:14:35,297 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 11:14:35,298 INFO L209 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] [2022-11-20 11:14:35,304 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:14:35,304 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2022-11-20 11:14:35,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:14:35,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1158236383, now seen corresponding path program 1 times [2022-11-20 11:14:35,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:14:35,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498643774] [2022-11-20 11:14:35,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:14:35,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:14:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:14:35,349 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:14:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:14:35,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:14:35,415 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:14:35,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2022-11-20 11:14:35,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2022-11-20 11:14:35,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2022-11-20 11:14:35,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2022-11-20 11:14:35,419 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2022-11-20 11:14:35,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2022-11-20 11:14:35,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2022-11-20 11:14:35,420 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2022-11-20 11:14:35,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:14:35,421 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 11:14:35,429 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:14:35,429 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:14:35,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:14:35 BasicIcfg [2022-11-20 11:14:35,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:14:35,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:14:35,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:14:35,519 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:14:35,520 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:14:30" (3/4) ... [2022-11-20 11:14:35,523 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:14:35,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:14:35,524 INFO L158 Benchmark]: Toolchain (without parser) took 6407.30ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 106.9MB in the beginning and 176.0MB in the end (delta: -69.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:14:35,524 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:14:35,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 676.07ms. Allocated memory is still 144.7MB. Free memory was 106.3MB in the beginning and 79.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-20 11:14:35,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.39ms. Allocated memory is still 144.7MB. Free memory was 79.0MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:14:35,526 INFO L158 Benchmark]: Boogie Preprocessor took 62.93ms. Allocated memory is still 144.7MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:14:35,527 INFO L158 Benchmark]: RCFGBuilder took 536.17ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 59.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:14:35,527 INFO L158 Benchmark]: TraceAbstraction took 5052.28ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 58.9MB in the beginning and 176.0MB in the end (delta: -117.0MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2022-11-20 11:14:35,528 INFO L158 Benchmark]: Witness Printer took 4.89ms. Allocated memory is still 209.7MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:14:35,530 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory is still 53.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 676.07ms. Allocated memory is still 144.7MB. Free memory was 106.3MB in the beginning and 79.0MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.39ms. Allocated memory is still 144.7MB. Free memory was 79.0MB in the beginning and 77.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.93ms. Allocated memory is still 144.7MB. Free memory was 77.0MB in the beginning and 74.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.17ms. Allocated memory is still 144.7MB. Free memory was 74.9MB in the beginning and 59.6MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5052.28ms. Allocated memory was 144.7MB in the beginning and 209.7MB in the end (delta: 65.0MB). Free memory was 58.9MB in the beginning and 176.0MB in the end (delta: -117.0MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * Witness Printer took 4.89ms. Allocated memory is still 209.7MB. Free memory is still 176.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 931]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal={1:0}] [L918] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, myglobal={1:0}] [L919] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; VAL [mutex1={2:0}, mutex2={3:0}, myglobal={1:0}] [L928] 0 pthread_t id; VAL [id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}] [L929] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L931] EXPR 0 \read(myglobal) VAL [\read(myglobal)=0, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}] [L921] 1 int *p = &myglobal; VAL [arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] EXPR 1 \read(*p) VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] EXPR 1 *p + 1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L931] 0 myglobal+1 VAL [\read(*p)=0, \read(myglobal)=0, arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] EXPR 1 *p + 1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L931] 0 myglobal+1 VAL [\read(*p)=0, \read(myglobal)=0, arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] EXPR 1 *p + 1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L931] 0 myglobal+1 VAL [\read(*p)=0, \read(myglobal)=0, arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] EXPR 1 *p + 1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L931] 0 myglobal+1 VAL [\read(*p)=0, \read(myglobal)=0, arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] EXPR 1 *p + 1 VAL [\read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L923] 1 *p = *p + 1 VAL [*p = *p + 1=25, \read(*p)=0, arg={0:0}, arg={0:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] [L931] 0 myglobal+1 VAL [*p = *p + 1=25, \read(*p)=0, \read(myglobal)=0, arg={0:0}, arg={0:0}, id={5:0}, mutex1={2:0}, mutex2={3:0}, myglobal={1:0}, p={1:0}] Now there is a data race (on the heap) between C: *p = *p + 1 [923] and C: myglobal+1 [931] - UnprovableResult [Line: 931]: 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. - UnprovableResult [Line: 929]: 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: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: 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, 119 locations, 8 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: 4.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 97 mSDsluCounter, 119 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 984 IncrementalHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 119 mSDtfsCounter, 984 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1676occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 1.7s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 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 proved your program to be incorrect! [2022-11-20 11:14:35,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff59a8d1-a5b6-4799-9ab9-66bbffaf327f/bin/uautomizer-ug76WZFUDN/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