./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R --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 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 --- 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-38b53e6 [2022-11-25 17:03:56,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:03:56,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:03:56,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:03:56,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:03:56,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:03:56,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:03:56,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:03:56,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:03:56,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:03:56,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:03:56,274 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:03:56,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:03:56,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:03:56,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:03:56,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:03:56,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:03:56,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:03:56,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:03:56,285 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:03:56,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:03:56,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:03:56,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:03:56,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:03:56,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:03:56,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:03:56,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:03:56,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:03:56,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:03:56,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:03:56,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:03:56,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:03:56,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:03:56,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:03:56,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:03:56,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:03:56,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:03:56,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:03:56,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:03:56,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:03:56,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:03:56,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-25 17:03:56,348 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:03:56,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:03:56,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:03:56,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:03:56,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:03:56,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:03:56,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:03:56,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:03:56,361 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:03:56,361 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:03:56,362 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:03:56,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:03:56,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:03:56,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:03:56,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:03:56,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:03:56,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:03:56,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:03:56,364 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-25 17:03:56,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:03:56,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:03:56,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:03:56,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:03:56,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:03:56,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:03:56,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:03:56,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:03:56,367 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:03:56,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:03:56,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:03:56,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:03:56,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:03:56,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:03:56,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:03:56,369 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:03:56,369 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:03:56,370 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68241c415e195cda32e2ec49a31f5c0e3a220e5729b169fd07b350b195e62294 [2022-11-25 17:03:56,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:03:56,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:03:56,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:03:56,783 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:03:56,784 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:03:56,785 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2022-11-25 17:04:00,044 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:04:00,395 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:04:00,396 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/sv-benchmarks/c/goblint-regression/03-practical_08-nonterm1.i [2022-11-25 17:04:00,411 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/data/7df3568d8/65473051057e4a9b86ba8c4efb50bb67/FLAG445e7ab94 [2022-11-25 17:04:00,427 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/data/7df3568d8/65473051057e4a9b86ba8c4efb50bb67 [2022-11-25 17:04:00,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:04:00,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:04:00,433 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:04:00,433 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:04:00,437 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:04:00,438 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:04:00" (1/1) ... [2022-11-25 17:04:00,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c1c7b5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:00, skipping insertion in model container [2022-11-25 17:04:00,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:04:00" (1/1) ... [2022-11-25 17:04:00,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:04:00,489 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:04:01,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:04:01,120 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:04:01,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:04:01,286 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:04:01,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01 WrapperNode [2022-11-25 17:04:01,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:04:01,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:04:01,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:04:01,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:04:01,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,384 INFO L138 Inliner]: procedures = 264, calls = 24, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 88 [2022-11-25 17:04:01,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:04:01,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:04:01,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:04:01,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:04:01,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,426 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,432 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,451 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:04:01,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:04:01,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:04:01,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:04:01,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (1/1) ... [2022-11-25 17:04:01,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:04:01,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:04:01,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:04:01,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:04:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:04:01,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:04:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:04:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:04:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-25 17:04:01,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:04:01,564 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-25 17:04:01,564 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-25 17:04:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:04:01,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:04:01,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:04:01,567 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:04:01,740 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:04:01,743 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:04:02,022 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:04:02,031 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:04:02,032 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:04:02,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:02 BoogieIcfgContainer [2022-11-25 17:04:02,035 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:04:02,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:04:02,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:04:02,042 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:04:02,042 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:04:00" (1/3) ... [2022-11-25 17:04:02,043 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54b4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:04:02, skipping insertion in model container [2022-11-25 17:04:02,043 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:04:01" (2/3) ... [2022-11-25 17:04:02,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a54b4a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:04:02, skipping insertion in model container [2022-11-25 17:04:02,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:02" (3/3) ... [2022-11-25 17:04:02,046 INFO L112 eAbstractionObserver]: Analyzing ICFG 03-practical_08-nonterm1.i [2022-11-25 17:04:02,057 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:04:02,071 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:04:02,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:04:02,072 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:04:02,161 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-25 17:04:02,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 101 transitions, 210 flow [2022-11-25 17:04:02,294 INFO L130 PetriNetUnfolder]: 2/100 cut-off events. [2022-11-25 17:04:02,294 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:04:02,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 100 events. 2/100 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-25 17:04:02,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 101 transitions, 210 flow [2022-11-25 17:04:02,306 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 95 places, 93 transitions, 192 flow [2022-11-25 17:04:02,310 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:04:02,337 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 93 transitions, 192 flow [2022-11-25 17:04:02,340 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 95 places, 93 transitions, 192 flow [2022-11-25 17:04:02,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 95 places, 93 transitions, 192 flow [2022-11-25 17:04:02,392 INFO L130 PetriNetUnfolder]: 2/93 cut-off events. [2022-11-25 17:04:02,392 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-25 17:04:02,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 93 events. 2/93 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 61 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2022-11-25 17:04:02,395 INFO L119 LiptonReduction]: Number of co-enabled transitions 1638 [2022-11-25 17:04:05,628 INFO L134 LiptonReduction]: Checked pairs total: 5849 [2022-11-25 17:04:05,628 INFO L136 LiptonReduction]: Total number of compositions: 71 [2022-11-25 17:04:05,662 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:04:05,671 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;@48e0f70e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:04:05,671 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-25 17:04:05,675 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-11-25 17:04:05,676 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:04:05,676 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:05,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:04:05,679 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:05,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash 346376, now seen corresponding path program 1 times [2022-11-25 17:04:05,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:05,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455058312] [2022-11-25 17:04:05,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:05,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:05,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:05,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:05,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455058312] [2022-11-25 17:04:05,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455058312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:05,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:05,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:04:05,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203331446] [2022-11-25 17:04:05,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:05,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:04:05,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:04:06,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:04:06,017 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 172 [2022-11-25 17:04:06,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 31 transitions, 68 flow. Second operand has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 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) [2022-11-25 17:04:06,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:04:06,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 172 [2022-11-25 17:04:06,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:04:06,136 INFO L130 PetriNetUnfolder]: 46/152 cut-off events. [2022-11-25 17:04:06,136 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:04:06,138 INFO L83 FinitePrefix]: Finished finitePrefix Result has 258 conditions, 152 events. 46/152 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 551 event pairs, 40 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 249. Up to 102 conditions per place. [2022-11-25 17:04:06,142 INFO L137 encePairwiseOnDemand]: 170/172 looper letters, 16 selfloop transitions, 0 changer transitions 0/27 dead transitions. [2022-11-25 17:04:06,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 27 transitions, 89 flow [2022-11-25 17:04:06,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:04:06,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-25 17:04:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 212 transitions. [2022-11-25 17:04:06,160 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6162790697674418 [2022-11-25 17:04:06,161 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 212 transitions. [2022-11-25 17:04:06,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 212 transitions. [2022-11-25 17:04:06,164 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:04:06,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 212 transitions. [2022-11-25 17:04:06,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 106.0) internal successors, (212), 2 states have internal predecessors, (212), 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) [2022-11-25 17:04:06,187 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2022-11-25 17:04:06,188 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2022-11-25 17:04:06,191 INFO L175 Difference]: Start difference. First operand has 34 places, 31 transitions, 68 flow. Second operand 2 states and 212 transitions. [2022-11-25 17:04:06,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 27 transitions, 89 flow [2022-11-25 17:04:06,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 27 transitions, 88 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:04:06,197 INFO L231 Difference]: Finished difference. Result has 30 places, 27 transitions, 56 flow [2022-11-25 17:04:06,199 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=56, PETRI_PLACES=30, PETRI_TRANSITIONS=27} [2022-11-25 17:04:06,204 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2022-11-25 17:04:06,204 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 27 transitions, 56 flow [2022-11-25 17:04:06,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 98.5) internal successors, (197), 2 states have internal predecessors, (197), 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) [2022-11-25 17:04:06,205 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:06,205 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:04:06,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:04:06,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:06,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:06,216 INFO L85 PathProgramCache]: Analyzing trace with hash 332841356, now seen corresponding path program 1 times [2022-11-25 17:04:06,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:06,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531951717] [2022-11-25 17:04:06,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:06,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:06,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:06,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531951717] [2022-11-25 17:04:06,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531951717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:06,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:06,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:04:06,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264608703] [2022-11-25 17:04:06,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:06,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:04:06,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:06,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:04:06,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:06,364 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 172 [2022-11-25 17:04:06,365 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 27 transitions, 56 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2022-11-25 17:04:06,365 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:04:06,365 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 172 [2022-11-25 17:04:06,365 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:04:06,470 INFO L130 PetriNetUnfolder]: 87/225 cut-off events. [2022-11-25 17:04:06,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:04:06,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 424 conditions, 225 events. 87/225 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 917 event pairs, 32 based on Foata normal form. 0/207 useless extension candidates. Maximal degree in co-relation 421. Up to 110 conditions per place. [2022-11-25 17:04:06,472 INFO L137 encePairwiseOnDemand]: 160/172 looper letters, 30 selfloop transitions, 9 changer transitions 0/44 dead transitions. [2022-11-25 17:04:06,473 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 44 transitions, 168 flow [2022-11-25 17:04:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:04:06,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:04:06,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 288 transitions. [2022-11-25 17:04:06,476 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5581395348837209 [2022-11-25 17:04:06,476 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 288 transitions. [2022-11-25 17:04:06,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 288 transitions. [2022-11-25 17:04:06,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:04:06,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 288 transitions. [2022-11-25 17:04:06,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 96.0) internal successors, (288), 3 states have internal predecessors, (288), 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) [2022-11-25 17:04:06,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:06,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:06,480 INFO L175 Difference]: Start difference. First operand has 30 places, 27 transitions, 56 flow. Second operand 3 states and 288 transitions. [2022-11-25 17:04:06,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 44 transitions, 168 flow [2022-11-25 17:04:06,481 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 44 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:04:06,482 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 134 flow [2022-11-25 17:04:06,483 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2022-11-25 17:04:06,483 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2022-11-25 17:04:06,484 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 36 transitions, 134 flow [2022-11-25 17:04:06,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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) [2022-11-25 17:04:06,484 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:06,484 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:06,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:04:06,485 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:06,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:06,486 INFO L85 PathProgramCache]: Analyzing trace with hash 2033042296, now seen corresponding path program 1 times [2022-11-25 17:04:06,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:06,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654206494] [2022-11-25 17:04:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:06,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:06,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:06,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654206494] [2022-11-25 17:04:06,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654206494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:06,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:06,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:04:06,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795780451] [2022-11-25 17:04:06,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:06,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:04:06,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:06,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:04:06,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:06,608 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 172 [2022-11-25 17:04:06,608 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 134 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2022-11-25 17:04:06,608 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:04:06,608 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 172 [2022-11-25 17:04:06,609 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:04:06,689 INFO L130 PetriNetUnfolder]: 83/219 cut-off events. [2022-11-25 17:04:06,689 INFO L131 PetriNetUnfolder]: For 74/79 co-relation queries the response was YES. [2022-11-25 17:04:06,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 571 conditions, 219 events. 83/219 cut-off events. For 74/79 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 884 event pairs, 40 based on Foata normal form. 0/205 useless extension candidates. Maximal degree in co-relation 566. Up to 175 conditions per place. [2022-11-25 17:04:06,698 INFO L137 encePairwiseOnDemand]: 167/172 looper letters, 30 selfloop transitions, 6 changer transitions 0/43 dead transitions. [2022-11-25 17:04:06,699 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 43 transitions, 234 flow [2022-11-25 17:04:06,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:04:06,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:04:06,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 285 transitions. [2022-11-25 17:04:06,703 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5523255813953488 [2022-11-25 17:04:06,703 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 285 transitions. [2022-11-25 17:04:06,703 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 285 transitions. [2022-11-25 17:04:06,703 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:04:06,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 285 transitions. [2022-11-25 17:04:06,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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) [2022-11-25 17:04:06,708 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:06,709 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:06,709 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 134 flow. Second operand 3 states and 285 transitions. [2022-11-25 17:04:06,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 43 transitions, 234 flow [2022-11-25 17:04:06,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 43 transitions, 210 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:04:06,718 INFO L231 Difference]: Finished difference. Result has 35 places, 40 transitions, 158 flow [2022-11-25 17:04:06,718 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=35, PETRI_TRANSITIONS=40} [2022-11-25 17:04:06,720 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2022-11-25 17:04:06,720 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 40 transitions, 158 flow [2022-11-25 17:04:06,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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) [2022-11-25 17:04:06,720 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:06,721 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:06,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:04:06,721 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:06,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:06,722 INFO L85 PathProgramCache]: Analyzing trace with hash 2042370190, now seen corresponding path program 1 times [2022-11-25 17:04:06,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:06,723 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96381013] [2022-11-25 17:04:06,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:06,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:06,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:06,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96381013] [2022-11-25 17:04:06,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96381013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:06,814 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:06,814 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:04:06,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460946375] [2022-11-25 17:04:06,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:06,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:04:06,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:06,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:04:06,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:06,863 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 172 [2022-11-25 17:04:06,863 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 40 transitions, 158 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2022-11-25 17:04:06,864 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:04:06,864 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 172 [2022-11-25 17:04:06,864 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:04:06,983 INFO L130 PetriNetUnfolder]: 127/294 cut-off events. [2022-11-25 17:04:06,983 INFO L131 PetriNetUnfolder]: For 97/105 co-relation queries the response was YES. [2022-11-25 17:04:06,984 INFO L83 FinitePrefix]: Finished finitePrefix Result has 770 conditions, 294 events. 127/294 cut-off events. For 97/105 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1174 event pairs, 38 based on Foata normal form. 0/283 useless extension candidates. Maximal degree in co-relation 764. Up to 206 conditions per place. [2022-11-25 17:04:06,986 INFO L137 encePairwiseOnDemand]: 164/172 looper letters, 39 selfloop transitions, 12 changer transitions 2/59 dead transitions. [2022-11-25 17:04:06,986 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 59 transitions, 333 flow [2022-11-25 17:04:06,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:04:06,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:04:06,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 291 transitions. [2022-11-25 17:04:06,992 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.563953488372093 [2022-11-25 17:04:06,993 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 291 transitions. [2022-11-25 17:04:06,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 291 transitions. [2022-11-25 17:04:06,993 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:04:06,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 291 transitions. [2022-11-25 17:04:06,996 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 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) [2022-11-25 17:04:06,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:07,004 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:07,004 INFO L175 Difference]: Start difference. First operand has 35 places, 40 transitions, 158 flow. Second operand 3 states and 291 transitions. [2022-11-25 17:04:07,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 59 transitions, 333 flow [2022-11-25 17:04:07,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 59 transitions, 324 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-25 17:04:07,013 INFO L231 Difference]: Finished difference. Result has 38 places, 48 transitions, 250 flow [2022-11-25 17:04:07,013 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=152, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=250, PETRI_PLACES=38, PETRI_TRANSITIONS=48} [2022-11-25 17:04:07,015 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2022-11-25 17:04:07,015 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 48 transitions, 250 flow [2022-11-25 17:04:07,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 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) [2022-11-25 17:04:07,016 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:07,016 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:07,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:04:07,017 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:07,018 INFO L85 PathProgramCache]: Analyzing trace with hash 272512729, now seen corresponding path program 1 times [2022-11-25 17:04:07,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:07,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564506286] [2022-11-25 17:04:07,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:07,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:07,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:07,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:07,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:07,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564506286] [2022-11-25 17:04:07,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564506286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:07,136 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:07,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:04:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710170568] [2022-11-25 17:04:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:07,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:04:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:04:07,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:07,158 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 91 out of 172 [2022-11-25 17:04:07,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 48 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2022-11-25 17:04:07,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:04:07,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 91 of 172 [2022-11-25 17:04:07,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:04:07,219 INFO L130 PetriNetUnfolder]: 59/158 cut-off events. [2022-11-25 17:04:07,219 INFO L131 PetriNetUnfolder]: For 139/147 co-relation queries the response was YES. [2022-11-25 17:04:07,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 158 events. 59/158 cut-off events. For 139/147 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 560 event pairs, 7 based on Foata normal form. 9/165 useless extension candidates. Maximal degree in co-relation 465. Up to 64 conditions per place. [2022-11-25 17:04:07,221 INFO L137 encePairwiseOnDemand]: 167/172 looper letters, 19 selfloop transitions, 6 changer transitions 10/49 dead transitions. [2022-11-25 17:04:07,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 49 transitions, 298 flow [2022-11-25 17:04:07,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:04:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:04:07,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2022-11-25 17:04:07,223 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2022-11-25 17:04:07,223 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 301 transitions. [2022-11-25 17:04:07,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 301 transitions. [2022-11-25 17:04:07,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:04:07,223 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 301 transitions. [2022-11-25 17:04:07,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 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) [2022-11-25 17:04:07,226 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:07,227 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:07,227 INFO L175 Difference]: Start difference. First operand has 38 places, 48 transitions, 250 flow. Second operand 3 states and 301 transitions. [2022-11-25 17:04:07,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 49 transitions, 298 flow [2022-11-25 17:04:07,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 49 transitions, 256 flow, removed 9 selfloop flow, removed 4 redundant places. [2022-11-25 17:04:07,231 INFO L231 Difference]: Finished difference. Result has 34 places, 36 transitions, 150 flow [2022-11-25 17:04:07,231 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=34, PETRI_TRANSITIONS=36} [2022-11-25 17:04:07,235 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2022-11-25 17:04:07,236 INFO L495 AbstractCegarLoop]: Abstraction has has 34 places, 36 transitions, 150 flow [2022-11-25 17:04:07,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 3 states have internal predecessors, (280), 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) [2022-11-25 17:04:07,236 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:07,236 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:07,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:04:07,237 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:07,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1004648763, now seen corresponding path program 1 times [2022-11-25 17:04:07,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:07,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738283373] [2022-11-25 17:04:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:07,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:04:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:04:07,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:04:07,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738283373] [2022-11-25 17:04:07,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738283373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:04:07,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:04:07,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:04:07,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106861472] [2022-11-25 17:04:07,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:04:07,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:04:07,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:04:07,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:04:07,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:04:07,360 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 172 [2022-11-25 17:04:07,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-11-25 17:04:07,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:04:07,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 172 [2022-11-25 17:04:07,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:04:07,423 INFO L130 PetriNetUnfolder]: 54/148 cut-off events. [2022-11-25 17:04:07,423 INFO L131 PetriNetUnfolder]: For 71/79 co-relation queries the response was YES. [2022-11-25 17:04:07,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 444 conditions, 148 events. 54/148 cut-off events. For 71/79 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 521 event pairs, 16 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 438. Up to 114 conditions per place. [2022-11-25 17:04:07,425 INFO L137 encePairwiseOnDemand]: 167/172 looper letters, 24 selfloop transitions, 7 changer transitions 7/44 dead transitions. [2022-11-25 17:04:07,426 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 44 transitions, 264 flow [2022-11-25 17:04:07,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:04:07,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:04:07,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2022-11-25 17:04:07,427 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5465116279069767 [2022-11-25 17:04:07,428 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2022-11-25 17:04:07,428 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2022-11-25 17:04:07,428 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:04:07,428 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2022-11-25 17:04:07,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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) [2022-11-25 17:04:07,431 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:07,432 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 172.0) internal successors, (688), 4 states have internal predecessors, (688), 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) [2022-11-25 17:04:07,432 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 150 flow. Second operand 3 states and 282 transitions. [2022-11-25 17:04:07,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 44 transitions, 264 flow [2022-11-25 17:04:07,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 44 transitions, 264 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-25 17:04:07,434 INFO L231 Difference]: Finished difference. Result has 37 places, 36 transitions, 175 flow [2022-11-25 17:04:07,435 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=172, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=37, PETRI_TRANSITIONS=36} [2022-11-25 17:04:07,435 INFO L288 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2022-11-25 17:04:07,436 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 36 transitions, 175 flow [2022-11-25 17:04:07,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2022-11-25 17:04:07,436 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:04:07,436 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:07,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:04:07,437 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 10 more)] === [2022-11-25 17:04:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:04:07,437 INFO L85 PathProgramCache]: Analyzing trace with hash 727762085, now seen corresponding path program 1 times [2022-11-25 17:04:07,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:04:07,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819665339] [2022-11-25 17:04:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:04:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:04:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:04:07,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:04:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:04:07,537 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:04:07,539 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:04:07,541 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 13 remaining) [2022-11-25 17:04:07,543 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (11 of 13 remaining) [2022-11-25 17:04:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (10 of 13 remaining) [2022-11-25 17:04:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (9 of 13 remaining) [2022-11-25 17:04:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (8 of 13 remaining) [2022-11-25 17:04:07,544 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 13 remaining) [2022-11-25 17:04:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (6 of 13 remaining) [2022-11-25 17:04:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 13 remaining) [2022-11-25 17:04:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (4 of 13 remaining) [2022-11-25 17:04:07,545 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (3 of 13 remaining) [2022-11-25 17:04:07,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (2 of 13 remaining) [2022-11-25 17:04:07,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 13 remaining) [2022-11-25 17:04:07,546 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 13 remaining) [2022-11-25 17:04:07,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:04:07,547 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:04:07,553 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-25 17:04:07,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:04:07,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:04:07 BasicIcfg [2022-11-25 17:04:07,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:04:07,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:04:07,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:04:07,595 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:04:07,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:04:02" (3/4) ... [2022-11-25 17:04:07,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:04:07,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:04:07,599 INFO L158 Benchmark]: Toolchain (without parser) took 7167.81ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 110.2MB in the beginning and 75.2MB in the end (delta: 35.0MB). Peak memory consumption was 67.5MB. Max. memory is 16.1GB. [2022-11-25 17:04:07,600 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:04:07,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 855.02ms. Allocated memory is still 144.7MB. Free memory was 109.9MB in the beginning and 82.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-25 17:04:07,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.63ms. Allocated memory is still 144.7MB. Free memory was 82.0MB in the beginning and 79.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:04:07,601 INFO L158 Benchmark]: Boogie Preprocessor took 69.90ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:04:07,602 INFO L158 Benchmark]: RCFGBuilder took 579.01ms. Allocated memory is still 144.7MB. Free memory was 78.0MB in the beginning and 64.1MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:04:07,602 INFO L158 Benchmark]: TraceAbstraction took 5556.42ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 63.4MB in the beginning and 76.3MB in the end (delta: -12.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2022-11-25 17:04:07,603 INFO L158 Benchmark]: Witness Printer took 4.26ms. Allocated memory is still 174.1MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:04:07,606 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 144.7MB. Free memory is still 87.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 855.02ms. Allocated memory is still 144.7MB. Free memory was 109.9MB in the beginning and 82.0MB in the end (delta: 27.8MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.63ms. Allocated memory is still 144.7MB. Free memory was 82.0MB in the beginning and 79.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.90ms. Allocated memory is still 144.7MB. Free memory was 79.8MB in the beginning and 78.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.01ms. Allocated memory is still 144.7MB. Free memory was 78.0MB in the beginning and 64.1MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5556.42ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 63.4MB in the beginning and 76.3MB in the end (delta: -12.9MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. * Witness Printer took 4.26ms. Allocated memory is still 174.1MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.3s, 95 PlacesBefore, 34 PlacesAfterwards, 93 TransitionsBefore, 31 TransitionsAfterwards, 1638 CoEnabledTransitionPairs, 8 FixpointIterations, 29 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 71 TotalNumberOfCompositions, 5849 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2540, independent: 2176, independent conditional: 0, independent unconditional: 2176, dependent: 364, dependent conditional: 0, dependent unconditional: 364, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1138, independent: 1080, independent conditional: 0, independent unconditional: 1080, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1138, independent: 987, independent conditional: 0, independent unconditional: 987, dependent: 151, dependent conditional: 0, dependent unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 151, independent: 93, independent conditional: 0, independent unconditional: 93, dependent: 58, dependent conditional: 0, dependent unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 293, independent: 155, independent conditional: 0, independent unconditional: 155, dependent: 138, dependent conditional: 0, dependent unconditional: 138, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2540, independent: 1096, independent conditional: 0, independent unconditional: 1096, dependent: 306, dependent conditional: 0, dependent unconditional: 306, unknown: 1138, unknown conditional: 0, unknown unconditional: 1138] , Statistics on independence cache: Total cache size (in pairs): 175, Positive cache size: 142, Positive conditional cache size: 0, Positive unconditional cache size: 142, Negative cache size: 33, Negative conditional cache size: 0, Negative unconditional cache size: 33, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 924]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int myglobal; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L936] 0 pthread_t id; [L937] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L930] EXPR 1 myglobal+1 [L930] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1] [L932] CALL 1 fun() [L922] 1 int i = __VERIFIER_nondet_int(); [L939] EXPR 0 myglobal+1 [L939] 0 myglobal=myglobal+1 VAL [id={3:0}, mutex1={1:0}, mutex2={2:0}, myglobal=2] [L924] 1 myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2] [L924] 1 myglobal+1 VAL [i=0, mutex1={1:0}, mutex2={2:0}, myglobal=2] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [939] and C: myglobal+1 [924] - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 939]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 941]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 942]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 937]: 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: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 930]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 924]: 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, 139 locations, 13 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: 5.3s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 248 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 368 IncrementalHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 31 mSDtfsCounter, 368 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=4, InterpolantAutomatonStates: 17, 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, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 52 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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! [2022-11-25 17:04:07,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49548351-9c76-4773-91a7-5bef0652bc07/bin/uautomizer-ZsLfNo2U6R/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