./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/ldv-races/race-2_5b-container_of.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-2_5b-container_of.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --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 5faf00393d89d658f15bef38d92c45fbf71c11871cf63eee09c2e096e6751445 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:03:00,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:03:00,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:03:00,900 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:03:00,901 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:03:00,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:03:00,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:03:00,944 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:03:00,946 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:03:00,952 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:03:00,953 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:03:00,954 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:03:00,954 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:03:00,956 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:03:00,957 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:03:00,957 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:03:00,958 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:03:00,958 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:03:00,959 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:03:00,959 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:03:00,960 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:03:00,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:03:00,961 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:03:00,961 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:03:00,962 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:03:00,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:03:00,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:03:00,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:03:00,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:03:00,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:03:00,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:00,968 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:03:00,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:03:00,969 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:03:00,969 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:03:00,969 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:03:00,970 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:03:00,970 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:03:00,970 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:03:00,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:03:00,971 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:03:00,988 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5faf00393d89d658f15bef38d92c45fbf71c11871cf63eee09c2e096e6751445 [2023-11-19 08:03:01,292 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:03:01,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:03:01,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:03:01,322 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:03:01,327 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:03:01,328 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-races/race-2_5b-container_of.i [2023-11-19 08:03:04,579 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:03:05,025 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:03:05,025 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/sv-benchmarks/c/ldv-races/race-2_5b-container_of.i [2023-11-19 08:03:05,064 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/data/010d8bef5/a69196228be547fbb504ee64f07f56ae/FLAG8d3463b7b [2023-11-19 08:03:05,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/data/010d8bef5/a69196228be547fbb504ee64f07f56ae [2023-11-19 08:03:05,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:03:05,092 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:03:05,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:05,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:03:05,103 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:03:05,104 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:05" (1/1) ... [2023-11-19 08:03:05,105 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac6ddcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:05, skipping insertion in model container [2023-11-19 08:03:05,105 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:03:05" (1/1) ... [2023-11-19 08:03:05,202 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:03:06,083 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:06,095 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:03:06,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:03:06,389 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:03:06,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06 WrapperNode [2023-11-19 08:03:06,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:03:06,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:06,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:03:06,392 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:03:06,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,439 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,480 INFO L138 Inliner]: procedures = 482, calls = 49, calls flagged for inlining = 13, calls inlined = 18, statements flattened = 236 [2023-11-19 08:03:06,481 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:03:06,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:03:06,482 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:03:06,482 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:03:06,492 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,492 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,501 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,502 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,540 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,544 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:03:06,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:03:06,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:03:06,553 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:03:06,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (1/1) ... [2023-11-19 08:03:06,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:03:06,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:03:06,602 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:03:06,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24102635-0a9c-4b03-8d7b-fabd108dfa19/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:03:06,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:03:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:03:06,647 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 08:03:06,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:03:06,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:03:06,649 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-11-19 08:03:06,650 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-11-19 08:03:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:03:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:03:06,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:03:06,652 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:03:07,031 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:03:07,033 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:03:07,725 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:03:07,748 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:03:07,749 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:03:07,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:07 BoogieIcfgContainer [2023-11-19 08:03:07,762 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:03:07,766 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:03:07,766 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:03:07,770 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:03:07,772 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:03:05" (1/3) ... [2023-11-19 08:03:07,773 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb2ce0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:07, skipping insertion in model container [2023-11-19 08:03:07,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:03:06" (2/3) ... [2023-11-19 08:03:07,776 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cb2ce0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:03:07, skipping insertion in model container [2023-11-19 08:03:07,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:03:07" (3/3) ... [2023-11-19 08:03:07,778 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_5b-container_of.i [2023-11-19 08:03:07,789 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:03:07,803 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:03:07,804 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 17 error locations. [2023-11-19 08:03:07,804 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:03:07,957 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 08:03:08,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 363 transitions, 740 flow [2023-11-19 08:03:08,306 INFO L124 PetriNetUnfolderBase]: 18/451 cut-off events. [2023-11-19 08:03:08,306 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:03:08,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 460 conditions, 451 events. 18/451 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 985 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 245. Up to 4 conditions per place. [2023-11-19 08:03:08,317 INFO L82 GeneralOperation]: Start removeDead. Operand has 355 places, 363 transitions, 740 flow [2023-11-19 08:03:08,331 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 353 places, 360 transitions, 732 flow [2023-11-19 08:03:08,336 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:03:08,354 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 353 places, 360 transitions, 732 flow [2023-11-19 08:03:08,357 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 353 places, 360 transitions, 732 flow [2023-11-19 08:03:08,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 353 places, 360 transitions, 732 flow [2023-11-19 08:03:08,469 INFO L124 PetriNetUnfolderBase]: 17/450 cut-off events. [2023-11-19 08:03:08,469 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:03:08,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 459 conditions, 450 events. 17/450 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 993 event pairs, 0 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 245. Up to 4 conditions per place. [2023-11-19 08:03:08,491 INFO L119 LiptonReduction]: Number of co-enabled transitions 23712 [2023-11-19 08:04:02,273 INFO L134 LiptonReduction]: Checked pairs total: 138288 [2023-11-19 08:04:02,274 INFO L136 LiptonReduction]: Total number of compositions: 316 [2023-11-19 08:04:02,289 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:04:02,296 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=LoopHeads, 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;@229151c6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:04:02,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-19 08:04:02,299 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:04:02,299 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:04:02,299 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:04:02,300 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:02,300 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:04:02,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-19 08:04:02,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:02,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1145, now seen corresponding path program 1 times [2023-11-19 08:04:02,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:02,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657018525] [2023-11-19 08:04:02,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:02,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:02,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:02,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657018525] [2023-11-19 08:04:02,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657018525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:02,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:02,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:04:02,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99955918] [2023-11-19 08:04:02,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:02,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:04:02,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:02,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:04:02,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:04:02,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 341 out of 679 [2023-11-19 08:04:02,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 137 transitions, 286 flow. Second operand has 2 states, 2 states have (on average 341.5) internal successors, (683), 2 states have internal predecessors, (683), 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) [2023-11-19 08:04:02,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:02,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 341 of 679 [2023-11-19 08:04:02,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:03,491 INFO L124 PetriNetUnfolderBase]: 949/2871 cut-off events. [2023-11-19 08:04:03,492 INFO L125 PetriNetUnfolderBase]: For 36/43 co-relation queries the response was YES. [2023-11-19 08:04:03,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4483 conditions, 2871 events. 949/2871 cut-off events. For 36/43 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 23357 event pairs, 948 based on Foata normal form. 88/2626 useless extension candidates. Maximal degree in co-relation 3966. Up to 1585 conditions per place. [2023-11-19 08:04:03,525 INFO L140 encePairwiseOnDemand]: 671/679 looper letters, 39 selfloop transitions, 0 changer transitions 0/126 dead transitions. [2023-11-19 08:04:03,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 126 transitions, 342 flow [2023-11-19 08:04:03,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:04:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:04:03,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 729 transitions. [2023-11-19 08:04:03,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5368188512518409 [2023-11-19 08:04:03,551 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 729 transitions. [2023-11-19 08:04:03,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 729 transitions. [2023-11-19 08:04:03,556 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:03,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 729 transitions. [2023-11-19 08:04:03,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 364.5) internal successors, (729), 2 states have internal predecessors, (729), 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) [2023-11-19 08:04:03,575 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 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) [2023-11-19 08:04:03,577 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 679.0) internal successors, (2037), 3 states have internal predecessors, (2037), 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) [2023-11-19 08:04:03,579 INFO L175 Difference]: Start difference. First operand has 138 places, 137 transitions, 286 flow. Second operand 2 states and 729 transitions. [2023-11-19 08:04:03,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 126 transitions, 342 flow [2023-11-19 08:04:03,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 126 transitions, 334 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 08:04:03,592 INFO L231 Difference]: Finished difference. Result has 128 places, 126 transitions, 256 flow [2023-11-19 08:04:03,594 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=679, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=256, PETRI_PLACES=128, PETRI_TRANSITIONS=126} [2023-11-19 08:04:03,601 INFO L281 CegarLoopForPetriNet]: 138 programPoint places, -10 predicate places. [2023-11-19 08:04:03,601 INFO L495 AbstractCegarLoop]: Abstraction has has 128 places, 126 transitions, 256 flow [2023-11-19 08:04:03,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 341.5) internal successors, (683), 2 states have internal predecessors, (683), 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) [2023-11-19 08:04:03,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:03,602 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:03,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:04:03,603 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-19 08:04:03,613 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:03,614 INFO L85 PathProgramCache]: Analyzing trace with hash -783806522, now seen corresponding path program 1 times [2023-11-19 08:04:03,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:03,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88850329] [2023-11-19 08:04:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:03,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:03,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:04,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:04,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:04,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88850329] [2023-11-19 08:04:04,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88850329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:04,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:04,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:04:04,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641735901] [2023-11-19 08:04:04,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:04,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:04:04,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:04,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:04:04,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:04:04,033 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 679 [2023-11-19 08:04:04,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 126 transitions, 256 flow. Second operand has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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) [2023-11-19 08:04:04,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:04,035 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 679 [2023-11-19 08:04:04,035 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:04:04,857 INFO L124 PetriNetUnfolderBase]: 949/3147 cut-off events. [2023-11-19 08:04:04,857 INFO L125 PetriNetUnfolderBase]: For 8/15 co-relation queries the response was YES. [2023-11-19 08:04:04,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4747 conditions, 3147 events. 949/3147 cut-off events. For 8/15 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 26335 event pairs, 360 based on Foata normal form. 0/2875 useless extension candidates. Maximal degree in co-relation 4744. Up to 939 conditions per place. [2023-11-19 08:04:04,883 INFO L140 encePairwiseOnDemand]: 675/679 looper letters, 54 selfloop transitions, 3 changer transitions 1/145 dead transitions. [2023-11-19 08:04:04,883 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 145 transitions, 410 flow [2023-11-19 08:04:04,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:04:04,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:04:04,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1061 transitions. [2023-11-19 08:04:04,888 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5208640157093766 [2023-11-19 08:04:04,889 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1061 transitions. [2023-11-19 08:04:04,890 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1061 transitions. [2023-11-19 08:04:04,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:04:04,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1061 transitions. [2023-11-19 08:04:04,894 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 353.6666666666667) internal successors, (1061), 3 states have internal predecessors, (1061), 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) [2023-11-19 08:04:04,900 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 679.0) internal successors, (2716), 4 states have internal predecessors, (2716), 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) [2023-11-19 08:04:04,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 679.0) internal successors, (2716), 4 states have internal predecessors, (2716), 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) [2023-11-19 08:04:04,904 INFO L175 Difference]: Start difference. First operand has 128 places, 126 transitions, 256 flow. Second operand 3 states and 1061 transitions. [2023-11-19 08:04:04,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 145 transitions, 410 flow [2023-11-19 08:04:04,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 145 transitions, 410 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:04:04,914 INFO L231 Difference]: Finished difference. Result has 132 places, 127 transitions, 274 flow [2023-11-19 08:04:04,915 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=679, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=274, PETRI_PLACES=132, PETRI_TRANSITIONS=127} [2023-11-19 08:04:04,916 INFO L281 CegarLoopForPetriNet]: 138 programPoint places, -6 predicate places. [2023-11-19 08:04:04,917 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 127 transitions, 274 flow [2023-11-19 08:04:04,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 334.6666666666667) internal successors, (1004), 3 states have internal predecessors, (1004), 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) [2023-11-19 08:04:04,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:04:04,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:04:04,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:04:04,925 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2023-11-19 08:04:04,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:04:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash -545237437, now seen corresponding path program 1 times [2023-11-19 08:04:04,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:04:04,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243331784] [2023-11-19 08:04:04,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:04:04,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:04:04,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:04:05,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:04:05,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:04:05,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243331784] [2023-11-19 08:04:05,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243331784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:04:05,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:04:05,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 08:04:05,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41596137] [2023-11-19 08:04:05,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:04:05,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 08:04:05,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:04:05,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 08:04:05,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-19 08:04:06,102 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 262 out of 679 [2023-11-19 08:04:06,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 127 transitions, 274 flow. Second operand has 6 states, 6 states have (on average 263.1666666666667) internal successors, (1579), 6 states have internal predecessors, (1579), 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) [2023-11-19 08:04:06,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:04:06,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 262 of 679 [2023-11-19 08:04:06,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand