./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8 --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 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba --- 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-e04fb08 [2022-11-16 12:32:41,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:32:41,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:32:41,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:32:41,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:32:41,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:32:41,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:32:41,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:32:41,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:32:41,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:32:41,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:32:41,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:32:41,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:32:41,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:32:41,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:32:41,325 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:32:41,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:32:41,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:32:41,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:32:41,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:32:41,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:32:41,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:32:41,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:32:41,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:32:41,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:32:41,355 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:32:41,355 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:32:41,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:32:41,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:32:41,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:32:41,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:32:41,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:32:41,363 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:32:41,365 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:32:41,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:32:41,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:32:41,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:32:41,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:32:41,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:32:41,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:32:41,369 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:32:41,370 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-16 12:32:41,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:32:41,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:32:41,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:32:41,415 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:32:41,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:32:41,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:32:41,417 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:32:41,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:32:41,417 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:32:41,418 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:32:41,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:32:41,419 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 12:32:41,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:32:41,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:32:41,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:32:41,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:32:41,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:32:41,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:32:41,421 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-16 12:32:41,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:32:41,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:32:41,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:32:41,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:32:41,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:32:41,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:32:41,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:32:41,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:41,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:32:41,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:32:41,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:32:41,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:32:41,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:32:41,426 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:32:41,426 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:32:41,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:32:41,427 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b48d13cab05bc3b998f8de65b383ec2ee92eaa2c6f230f8a23e235950b9a5ba [2022-11-16 12:32:41,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:32:41,786 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:32:41,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:32:41,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:32:41,791 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:32:41,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i [2022-11-16 12:32:41,871 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/data/cc8a7a839/99253eaccdd146788740de7800082390/FLAG6c1d01151 [2022-11-16 12:32:42,391 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:32:42,392 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/sv-benchmarks/c/goblint-regression/10-synch_02-thread_nonunique.i [2022-11-16 12:32:42,421 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/data/cc8a7a839/99253eaccdd146788740de7800082390/FLAG6c1d01151 [2022-11-16 12:32:42,671 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/data/cc8a7a839/99253eaccdd146788740de7800082390 [2022-11-16 12:32:42,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:32:42,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:32:42,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:32:42,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:32:42,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:32:42,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:42" (1/1) ... [2022-11-16 12:32:42,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@149a5f97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:42, skipping insertion in model container [2022-11-16 12:32:42,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:32:42" (1/1) ... [2022-11-16 12:32:42,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:32:42,727 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:32:43,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:32:43,320 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:32:43,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:32:43,452 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:32:43,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43 WrapperNode [2022-11-16 12:32:43,453 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:32:43,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:32:43,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:32:43,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:32:43,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,523 INFO L138 Inliner]: procedures = 259, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-11-16 12:32:43,523 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:32:43,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:32:43,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:32:43,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:32:43,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,558 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,568 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:32:43,578 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:32:43,578 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:32:43,578 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:32:43,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (1/1) ... [2022-11-16 12:32:43,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:32:43,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:43,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:32:43,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:32:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 12:32:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 12:32:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:32:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:32:43,661 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 12:32:43,831 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:32:43,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:32:43,964 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:32:43,971 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:32:43,971 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:32:43,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:43 BoogieIcfgContainer [2022-11-16 12:32:43,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:32:43,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:32:43,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:32:43,984 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:32:43,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:32:42" (1/3) ... [2022-11-16 12:32:43,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f845e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:32:43, skipping insertion in model container [2022-11-16 12:32:43,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:32:43" (2/3) ... [2022-11-16 12:32:43,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f845e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:32:43, skipping insertion in model container [2022-11-16 12:32:43,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:43" (3/3) ... [2022-11-16 12:32:43,987 INFO L112 eAbstractionObserver]: Analyzing ICFG 10-synch_02-thread_nonunique.i [2022-11-16 12:32:44,023 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 12:32:44,048 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:32:44,048 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-16 12:32:44,048 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 12:32:44,123 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-11-16 12:32:44,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 56 places, 56 transitions, 120 flow [2022-11-16 12:32:44,215 INFO L130 PetriNetUnfolder]: 5/79 cut-off events. [2022-11-16 12:32:44,215 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:32:44,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 79 events. 5/79 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 37. Up to 4 conditions per place. [2022-11-16 12:32:44,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 56 places, 56 transitions, 120 flow [2022-11-16 12:32:44,224 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 56 places, 56 transitions, 120 flow [2022-11-16 12:32:44,234 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:32:44,241 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;@3cf50078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:32:44,241 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-16 12:32:44,255 INFO L130 PetriNetUnfolder]: 2/41 cut-off events. [2022-11-16 12:32:44,255 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:32:44,255 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:44,256 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:44,257 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:32:44,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:44,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1508681915, now seen corresponding path program 1 times [2022-11-16 12:32:44,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:44,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622447739] [2022-11-16 12:32:44,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:44,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:44,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:44,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:44,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:44,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622447739] [2022-11-16 12:32:44,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622447739] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:44,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:44,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:44,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960950153] [2022-11-16 12:32:44,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:44,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:32:44,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:44,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:32:44,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:32:44,543 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 56 [2022-11-16 12:32:44,546 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 56 transitions, 120 flow. Second operand has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 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) [2022-11-16 12:32:44,547 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:44,547 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 56 [2022-11-16 12:32:44,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:44,582 INFO L130 PetriNetUnfolder]: 1/75 cut-off events. [2022-11-16 12:32:44,582 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-11-16 12:32:44,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 75 events. 1/75 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 127 event pairs, 0 based on Foata normal form. 4/72 useless extension candidates. Maximal degree in co-relation 4. Up to 3 conditions per place. [2022-11-16 12:32:44,584 INFO L137 encePairwiseOnDemand]: 54/56 looper letters, 2 selfloop transitions, 0 changer transitions 0/54 dead transitions. [2022-11-16 12:32:44,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 54 transitions, 120 flow [2022-11-16 12:32:44,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:32:44,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:32:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 108 transitions. [2022-11-16 12:32:44,599 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9642857142857143 [2022-11-16 12:32:44,599 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 108 transitions. [2022-11-16 12:32:44,600 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 108 transitions. [2022-11-16 12:32:44,601 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:44,604 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 108 transitions. [2022-11-16 12:32:44,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 54.0) internal successors, (108), 2 states have internal predecessors, (108), 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) [2022-11-16 12:32:44,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-11-16 12:32:44,614 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 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) [2022-11-16 12:32:44,620 INFO L175 Difference]: Start difference. First operand has 56 places, 56 transitions, 120 flow. Second operand 2 states and 108 transitions. [2022-11-16 12:32:44,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 54 transitions, 120 flow [2022-11-16 12:32:44,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 120 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:32:44,638 INFO L231 Difference]: Finished difference. Result has 57 places, 54 transitions, 116 flow [2022-11-16 12:32:44,640 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=116, PETRI_PLACES=57, PETRI_TRANSITIONS=54} [2022-11-16 12:32:44,646 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, 1 predicate places. [2022-11-16 12:32:44,646 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 54 transitions, 116 flow [2022-11-16 12:32:44,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 52.5) internal successors, (105), 2 states have internal predecessors, (105), 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) [2022-11-16 12:32:44,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:44,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:44,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:32:44,649 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:32:44,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:44,652 INFO L85 PathProgramCache]: Analyzing trace with hash -298772548, now seen corresponding path program 1 times [2022-11-16 12:32:44,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:44,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340688074] [2022-11-16 12:32:44,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:44,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:44,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:44,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340688074] [2022-11-16 12:32:44,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340688074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:44,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:44,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:44,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124202819] [2022-11-16 12:32:44,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:44,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:44,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:44,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:44,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:44,798 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 56 [2022-11-16 12:32:44,798 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-11-16 12:32:44,798 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:44,799 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 56 [2022-11-16 12:32:44,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:44,883 INFO L130 PetriNetUnfolder]: 0/66 cut-off events. [2022-11-16 12:32:44,883 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-11-16 12:32:44,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 66 events. 0/66 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 53 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 0. Up to 17 conditions per place. [2022-11-16 12:32:44,884 INFO L137 encePairwiseOnDemand]: 50/56 looper letters, 26 selfloop transitions, 4 changer transitions 8/64 dead transitions. [2022-11-16 12:32:44,884 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 64 transitions, 200 flow [2022-11-16 12:32:44,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:44,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:32:44,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 130 transitions. [2022-11-16 12:32:44,887 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7738095238095238 [2022-11-16 12:32:44,887 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 130 transitions. [2022-11-16 12:32:44,887 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 130 transitions. [2022-11-16 12:32:44,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:44,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 130 transitions. [2022-11-16 12:32:44,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2022-11-16 12:32:44,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2022-11-16 12:32:44,891 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2022-11-16 12:32:44,891 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 116 flow. Second operand 3 states and 130 transitions. [2022-11-16 12:32:44,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 64 transitions, 200 flow [2022-11-16 12:32:44,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 64 transitions, 200 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:32:44,894 INFO L231 Difference]: Finished difference. Result has 60 places, 47 transitions, 116 flow [2022-11-16 12:32:44,895 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=116, PETRI_PLACES=60, PETRI_TRANSITIONS=47} [2022-11-16 12:32:44,896 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, 4 predicate places. [2022-11-16 12:32:44,896 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 47 transitions, 116 flow [2022-11-16 12:32:44,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 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) [2022-11-16 12:32:44,896 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:44,897 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:44,897 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:32:44,897 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:32:44,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:44,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1391277118, now seen corresponding path program 1 times [2022-11-16 12:32:44,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:44,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795635714] [2022-11-16 12:32:44,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:44,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:44,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:44,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:44,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795635714] [2022-11-16 12:32:44,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795635714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:44,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:44,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:44,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480730651] [2022-11-16 12:32:44,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:44,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:44,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:44,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:44,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:44,957 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 56 [2022-11-16 12:32:44,958 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 47 transitions, 116 flow. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2022-11-16 12:32:44,958 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:44,958 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 56 [2022-11-16 12:32:44,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:44,983 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-11-16 12:32:44,983 INFO L131 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2022-11-16 12:32:44,983 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 0/58 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 34 event pairs, 0 based on Foata normal form. 1/57 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-11-16 12:32:44,984 INFO L137 encePairwiseOnDemand]: 53/56 looper letters, 4 selfloop transitions, 2 changer transitions 0/46 dead transitions. [2022-11-16 12:32:44,984 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 126 flow [2022-11-16 12:32:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:32:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 148 transitions. [2022-11-16 12:32:44,986 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8809523809523809 [2022-11-16 12:32:44,986 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 148 transitions. [2022-11-16 12:32:44,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 148 transitions. [2022-11-16 12:32:44,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:44,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 148 transitions. [2022-11-16 12:32:44,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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) [2022-11-16 12:32:44,989 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2022-11-16 12:32:44,989 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 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) [2022-11-16 12:32:44,990 INFO L175 Difference]: Start difference. First operand has 60 places, 47 transitions, 116 flow. Second operand 3 states and 148 transitions. [2022-11-16 12:32:44,990 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 126 flow [2022-11-16 12:32:44,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 118 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-16 12:32:44,992 INFO L231 Difference]: Finished difference. Result has 52 places, 46 transitions, 110 flow [2022-11-16 12:32:44,992 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=56, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2022-11-16 12:32:44,993 INFO L288 CegarLoopForPetriNet]: 56 programPoint places, -4 predicate places. [2022-11-16 12:32:44,993 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 110 flow [2022-11-16 12:32:44,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 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) [2022-11-16 12:32:44,994 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:44,994 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:44,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:32:44,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2022-11-16 12:32:44,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:44,996 INFO L85 PathProgramCache]: Analyzing trace with hash 499314067, now seen corresponding path program 1 times [2022-11-16 12:32:44,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:44,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685332835] [2022-11-16 12:32:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:44,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:32:45,038 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:32:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:32:45,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:32:45,113 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:32:45,114 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2022-11-16 12:32:45,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2022-11-16 12:32:45,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2022-11-16 12:32:45,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 4 remaining) [2022-11-16 12:32:45,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:32:45,118 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-16 12:32:45,121 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-16 12:32:45,121 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-16 12:32:45,143 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 12:32:45,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 67 transitions, 152 flow [2022-11-16 12:32:45,208 INFO L130 PetriNetUnfolder]: 10/144 cut-off events. [2022-11-16 12:32:45,208 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:32:45,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 144 events. 10/144 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 300 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2022-11-16 12:32:45,210 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 67 transitions, 152 flow [2022-11-16 12:32:45,212 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 68 places, 67 transitions, 152 flow [2022-11-16 12:32:45,213 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:32:45,215 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;@3cf50078, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:32:45,215 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-16 12:32:45,222 INFO L130 PetriNetUnfolder]: 2/42 cut-off events. [2022-11-16 12:32:45,229 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 12:32:45,230 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:45,230 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:45,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-11-16 12:32:45,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:45,231 INFO L85 PathProgramCache]: Analyzing trace with hash -179665602, now seen corresponding path program 1 times [2022-11-16 12:32:45,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:45,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229729191] [2022-11-16 12:32:45,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:45,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:45,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:45,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:45,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229729191] [2022-11-16 12:32:45,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229729191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:45,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:45,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:45,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874843527] [2022-11-16 12:32:45,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:45,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:32:45,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:45,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:32:45,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:32:45,290 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 67 [2022-11-16 12:32:45,290 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 152 flow. Second operand has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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) [2022-11-16 12:32:45,290 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:45,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 67 [2022-11-16 12:32:45,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:45,344 INFO L130 PetriNetUnfolder]: 3/137 cut-off events. [2022-11-16 12:32:45,345 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-11-16 12:32:45,345 INFO L83 FinitePrefix]: Finished finitePrefix Result has 158 conditions, 137 events. 3/137 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 292 event pairs, 0 based on Foata normal form. 7/131 useless extension candidates. Maximal degree in co-relation 79. Up to 7 conditions per place. [2022-11-16 12:32:45,347 INFO L137 encePairwiseOnDemand]: 65/67 looper letters, 4 selfloop transitions, 0 changer transitions 0/65 dead transitions. [2022-11-16 12:32:45,347 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 156 flow [2022-11-16 12:32:45,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:32:45,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-11-16 12:32:45,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 128 transitions. [2022-11-16 12:32:45,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9552238805970149 [2022-11-16 12:32:45,353 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 128 transitions. [2022-11-16 12:32:45,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 128 transitions. [2022-11-16 12:32:45,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:45,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 128 transitions. [2022-11-16 12:32:45,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 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) [2022-11-16 12:32:45,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2022-11-16 12:32:45,359 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 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) [2022-11-16 12:32:45,359 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 152 flow. Second operand 2 states and 128 transitions. [2022-11-16 12:32:45,359 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 156 flow [2022-11-16 12:32:45,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 65 transitions, 156 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:32:45,366 INFO L231 Difference]: Finished difference. Result has 69 places, 65 transitions, 148 flow [2022-11-16 12:32:45,366 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=148, PETRI_PLACES=69, PETRI_TRANSITIONS=65} [2022-11-16 12:32:45,369 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, 1 predicate places. [2022-11-16 12:32:45,369 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 65 transitions, 148 flow [2022-11-16 12:32:45,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 61.5) internal successors, (123), 2 states have internal predecessors, (123), 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) [2022-11-16 12:32:45,369 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:45,370 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:45,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:32:45,370 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-11-16 12:32:45,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:45,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1987120065, now seen corresponding path program 1 times [2022-11-16 12:32:45,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:45,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947056654] [2022-11-16 12:32:45,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:45,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:45,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:45,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:45,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:45,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947056654] [2022-11-16 12:32:45,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947056654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:45,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:45,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:32:45,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538742494] [2022-11-16 12:32:45,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:45,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:45,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:45,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:45,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:45,440 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 67 [2022-11-16 12:32:45,441 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 65 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2022-11-16 12:32:45,441 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:45,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 67 [2022-11-16 12:32:45,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:45,542 INFO L130 PetriNetUnfolder]: 2/140 cut-off events. [2022-11-16 12:32:45,542 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-16 12:32:45,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 140 events. 2/140 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 294 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 227. Up to 47 conditions per place. [2022-11-16 12:32:45,546 INFO L137 encePairwiseOnDemand]: 61/67 looper letters, 36 selfloop transitions, 4 changer transitions 0/81 dead transitions. [2022-11-16 12:32:45,546 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 81 transitions, 266 flow [2022-11-16 12:32:45,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:45,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:32:45,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 165 transitions. [2022-11-16 12:32:45,550 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8208955223880597 [2022-11-16 12:32:45,551 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 165 transitions. [2022-11-16 12:32:45,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 165 transitions. [2022-11-16 12:32:45,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:45,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 165 transitions. [2022-11-16 12:32:45,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2022-11-16 12:32:45,553 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 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) [2022-11-16 12:32:45,554 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 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) [2022-11-16 12:32:45,554 INFO L175 Difference]: Start difference. First operand has 69 places, 65 transitions, 148 flow. Second operand 3 states and 165 transitions. [2022-11-16 12:32:45,554 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 81 transitions, 266 flow [2022-11-16 12:32:45,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 81 transitions, 266 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-16 12:32:45,557 INFO L231 Difference]: Finished difference. Result has 72 places, 67 transitions, 172 flow [2022-11-16 12:32:45,557 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=172, PETRI_PLACES=72, PETRI_TRANSITIONS=67} [2022-11-16 12:32:45,558 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, 4 predicate places. [2022-11-16 12:32:45,558 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 67 transitions, 172 flow [2022-11-16 12:32:45,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 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) [2022-11-16 12:32:45,559 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:45,559 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:45,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:32:45,560 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-11-16 12:32:45,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:45,560 INFO L85 PathProgramCache]: Analyzing trace with hash 849774069, now seen corresponding path program 1 times [2022-11-16 12:32:45,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:45,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301812171] [2022-11-16 12:32:45,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:45,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:45,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:45,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:45,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301812171] [2022-11-16 12:32:45,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301812171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:45,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:45,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:45,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879922002] [2022-11-16 12:32:45,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:45,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:45,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:45,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:45,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:45,596 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 67 [2022-11-16 12:32:45,596 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 67 transitions, 172 flow. Second operand has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2022-11-16 12:32:45,596 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:45,596 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 67 [2022-11-16 12:32:45,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:45,693 INFO L130 PetriNetUnfolder]: 34/320 cut-off events. [2022-11-16 12:32:45,693 INFO L131 PetriNetUnfolder]: For 115/312 co-relation queries the response was YES. [2022-11-16 12:32:45,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 475 conditions, 320 events. 34/320 cut-off events. For 115/312 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1539 event pairs, 17 based on Foata normal form. 2/286 useless extension candidates. Maximal degree in co-relation 468. Up to 58 conditions per place. [2022-11-16 12:32:45,699 INFO L137 encePairwiseOnDemand]: 62/67 looper letters, 15 selfloop transitions, 4 changer transitions 0/74 dead transitions. [2022-11-16 12:32:45,700 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 74 transitions, 232 flow [2022-11-16 12:32:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:45,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:32:45,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 179 transitions. [2022-11-16 12:32:45,701 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8905472636815921 [2022-11-16 12:32:45,702 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 179 transitions. [2022-11-16 12:32:45,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 179 transitions. [2022-11-16 12:32:45,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:45,704 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 179 transitions. [2022-11-16 12:32:45,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-11-16 12:32:45,706 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 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) [2022-11-16 12:32:45,707 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 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) [2022-11-16 12:32:45,708 INFO L175 Difference]: Start difference. First operand has 72 places, 67 transitions, 172 flow. Second operand 3 states and 179 transitions. [2022-11-16 12:32:45,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 74 transitions, 232 flow [2022-11-16 12:32:45,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 74 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-16 12:32:45,717 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 198 flow [2022-11-16 12:32:45,717 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=198, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2022-11-16 12:32:45,720 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, 7 predicate places. [2022-11-16 12:32:45,720 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 198 flow [2022-11-16 12:32:45,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.333333333333336) internal successors, (163), 3 states have internal predecessors, (163), 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) [2022-11-16 12:32:45,721 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:45,722 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:45,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:32:45,722 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-11-16 12:32:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash 63309174, now seen corresponding path program 1 times [2022-11-16 12:32:45,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:45,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656971558] [2022-11-16 12:32:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:45,869 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:45,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:45,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656971558] [2022-11-16 12:32:45,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656971558] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:32:45,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91532417] [2022-11-16 12:32:45,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:45,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:45,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:32:45,873 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:32:45,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:32:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:45,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 12:32:45,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:46,045 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:46,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:32:46,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:32:46,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91532417] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:32:46,096 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:32:46,096 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-11-16 12:32:46,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094153214] [2022-11-16 12:32:46,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:32:46,097 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-16 12:32:46,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:46,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-16 12:32:46,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:32:46,099 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 67 [2022-11-16 12:32:46,100 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 198 flow. Second operand has 10 states, 10 states have (on average 43.2) internal successors, (432), 10 states have internal predecessors, (432), 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) [2022-11-16 12:32:46,100 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:46,100 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 67 [2022-11-16 12:32:46,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:46,220 INFO L130 PetriNetUnfolder]: 3/75 cut-off events. [2022-11-16 12:32:46,220 INFO L131 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-11-16 12:32:46,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 75 events. 3/75 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 144 event pairs, 1 based on Foata normal form. 2/72 useless extension candidates. Maximal degree in co-relation 122. Up to 9 conditions per place. [2022-11-16 12:32:46,221 INFO L137 encePairwiseOnDemand]: 62/67 looper letters, 10 selfloop transitions, 7 changer transitions 0/52 dead transitions. [2022-11-16 12:32:46,221 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 52 transitions, 180 flow [2022-11-16 12:32:46,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:32:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-11-16 12:32:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 379 transitions. [2022-11-16 12:32:46,224 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6285240464344942 [2022-11-16 12:32:46,224 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 379 transitions. [2022-11-16 12:32:46,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 379 transitions. [2022-11-16 12:32:46,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:46,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 379 transitions. [2022-11-16 12:32:46,226 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 42.111111111111114) internal successors, (379), 9 states have internal predecessors, (379), 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) [2022-11-16 12:32:46,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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) [2022-11-16 12:32:46,228 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 67.0) internal successors, (670), 10 states have internal predecessors, (670), 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) [2022-11-16 12:32:46,228 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 198 flow. Second operand 9 states and 379 transitions. [2022-11-16 12:32:46,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 52 transitions, 180 flow [2022-11-16 12:32:46,229 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 52 transitions, 170 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-11-16 12:32:46,230 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 142 flow [2022-11-16 12:32:46,230 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=142, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2022-11-16 12:32:46,231 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -8 predicate places. [2022-11-16 12:32:46,231 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 142 flow [2022-11-16 12:32:46,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 43.2) internal successors, (432), 10 states have internal predecessors, (432), 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) [2022-11-16 12:32:46,232 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:46,232 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:46,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:46,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:32:46,438 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-11-16 12:32:46,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:46,439 INFO L85 PathProgramCache]: Analyzing trace with hash 25788934, now seen corresponding path program 1 times [2022-11-16 12:32:46,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:46,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696521429] [2022-11-16 12:32:46,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:46,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 12:32:46,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:32:46,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696521429] [2022-11-16 12:32:46,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696521429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:46,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:46,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:32:46,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404752197] [2022-11-16 12:32:46,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:46,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:32:46,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:32:46,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:32:46,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:32:46,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 67 [2022-11-16 12:32:46,515 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2022-11-16 12:32:46,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-16 12:32:46,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 67 [2022-11-16 12:32:46,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-16 12:32:46,564 INFO L130 PetriNetUnfolder]: 19/119 cut-off events. [2022-11-16 12:32:46,565 INFO L131 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2022-11-16 12:32:46,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 232 conditions, 119 events. 19/119 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 358 event pairs, 8 based on Foata normal form. 0/112 useless extension candidates. Maximal degree in co-relation 224. Up to 34 conditions per place. [2022-11-16 12:32:46,566 INFO L137 encePairwiseOnDemand]: 62/67 looper letters, 13 selfloop transitions, 5 changer transitions 0/54 dead transitions. [2022-11-16 12:32:46,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 54 transitions, 198 flow [2022-11-16 12:32:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:32:46,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-16 12:32:46,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 175 transitions. [2022-11-16 12:32:46,568 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8706467661691543 [2022-11-16 12:32:46,568 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 175 transitions. [2022-11-16 12:32:46,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 175 transitions. [2022-11-16 12:32:46,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-16 12:32:46,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 175 transitions. [2022-11-16 12:32:46,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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) [2022-11-16 12:32:46,570 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 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) [2022-11-16 12:32:46,570 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 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) [2022-11-16 12:32:46,570 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 142 flow. Second operand 3 states and 175 transitions. [2022-11-16 12:32:46,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 54 transitions, 198 flow [2022-11-16 12:32:46,575 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 54 transitions, 183 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-11-16 12:32:46,576 INFO L231 Difference]: Finished difference. Result has 59 places, 51 transitions, 163 flow [2022-11-16 12:32:46,576 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=67, PETRI_DIFFERENCE_MINUEND_FLOW=127, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=163, PETRI_PLACES=59, PETRI_TRANSITIONS=51} [2022-11-16 12:32:46,579 INFO L288 CegarLoopForPetriNet]: 68 programPoint places, -9 predicate places. [2022-11-16 12:32:46,579 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 51 transitions, 163 flow [2022-11-16 12:32:46,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2022-11-16 12:32:46,580 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-16 12:32:46,580 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:46,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:32:46,580 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONDATA_RACE (and 2 more)] === [2022-11-16 12:32:46,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:46,582 INFO L85 PathProgramCache]: Analyzing trace with hash 679955519, now seen corresponding path program 1 times [2022-11-16 12:32:46,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:32:46,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253980619] [2022-11-16 12:32:46,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:46,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:32:46,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:32:46,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:32:46,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:32:46,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:32:46,625 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:32:46,638 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2022-11-16 12:32:46,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2022-11-16 12:32:46,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2022-11-16 12:32:46,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2022-11-16 12:32:46,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2022-11-16 12:32:46,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:32:46,639 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-16 12:32:46,644 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-11-16 12:32:46,645 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:32:46,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:32:46 BasicIcfg [2022-11-16 12:32:46,688 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:32:46,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:32:46,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:32:46,688 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:32:46,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:32:43" (3/4) ... [2022-11-16 12:32:46,692 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:32:46,692 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:32:46,693 INFO L158 Benchmark]: Toolchain (without parser) took 4018.60ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 55.9MB in the beginning and 57.6MB in the end (delta: -1.7MB). Peak memory consumption was 41.8MB. Max. memory is 16.1GB. [2022-11-16 12:32:46,701 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:46,702 INFO L158 Benchmark]: CACSL2BoogieTranslator took 778.24ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 53.5MB in the end (delta: 2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-16 12:32:46,702 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.88ms. Allocated memory is still 94.4MB. Free memory was 53.5MB in the beginning and 51.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:32:46,702 INFO L158 Benchmark]: Boogie Preprocessor took 53.42ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 49.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:32:46,703 INFO L158 Benchmark]: RCFGBuilder took 395.75ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 37.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:32:46,703 INFO L158 Benchmark]: TraceAbstraction took 2712.07ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 37.2MB in the beginning and 57.6MB in the end (delta: -20.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-11-16 12:32:46,703 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 138.4MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:32:46,705 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 778.24ms. Allocated memory is still 94.4MB. Free memory was 55.8MB in the beginning and 53.5MB in the end (delta: 2.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.88ms. Allocated memory is still 94.4MB. Free memory was 53.5MB in the beginning and 51.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.42ms. Allocated memory is still 94.4MB. Free memory was 51.3MB in the beginning and 49.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 395.75ms. Allocated memory is still 94.4MB. Free memory was 49.8MB in the beginning and 37.8MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2712.07ms. Allocated memory was 94.4MB in the beginning and 138.4MB in the end (delta: 44.0MB). Free memory was 37.2MB in the beginning and 57.6MB in the end (delta: -20.4MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 138.4MB. Free memory is still 57.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 919]: Data race detected Data race detected The following path leads to a data race: [L917] 0 int myglobal; VAL [myglobal=0] [L923] 0 pthread_t id[10]; VAL [id={2:0}, myglobal=0] [L924] 0 int i; VAL [id={2:0}, myglobal=0] [L925] 0 i=0 VAL [i=0, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 VAL [i=0, id={2:0}, myglobal=0] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=0, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=-1] [L925] 0 i++ VAL [arg={0:0}, i=1, id={2:0}, myglobal=0] [L925] COND TRUE 0 i<10 VAL [arg={0:0}, i=1, id={2:0}, myglobal=0] [L926] FCALL, FORK 0 pthread_create(&id[i], ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=1, id={2:0}, myglobal=0, pthread_create(&id[i], ((void *)0), t_fun, ((void *)0))=0] [L919] 2 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42] [L919] 1 myglobal=42 VAL [arg={0:0}, arg={0:0}, myglobal=42, myglobal=42=44] Now there is a data race, but we were unable to determine exactly which statements and variables are involved. - UnprovableResult [Line: 928]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 926]: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 64 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.0s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 11 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=120occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.2s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 74 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 120 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 27 mSDtfsCounter, 120 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=198occurred in iteration=3, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 254 SizeOfPredicates, 2 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 5/8 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! [2022-11-16 12:32:46,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f62d60e-a700-402f-a3ef-196d4e2b7177/bin/uautomizer-tPACEb0tL8/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