./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix013.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU --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 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:13:20,473 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:13:20,567 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:13:20,574 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:13:20,577 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:13:20,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:13:20,618 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:13:20,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:13:20,620 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:13:20,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:13:20,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:13:20,623 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:13:20,623 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:13:20,624 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:13:20,624 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:13:20,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:13:20,625 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:13:20,625 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:13:20,625 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:13:20,626 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:13:20,631 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:13:20,632 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:13:20,633 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:13:20,633 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:13:20,633 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:13:20,633 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:13:20,634 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:13:20,634 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:13:20,634 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:13:20,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:13:20,636 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:13:20,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:20,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:13:20,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:13:20,639 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:13:20,639 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:13:20,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:13:20,640 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:13:20,640 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:13:20,641 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:13:20,641 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:13:20,641 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_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d5aa429e9fa5fafdbda3a249edb2f84a5af4e6e0b36ce720714921f621bb137 [2024-10-31 22:13:20,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:13:20,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:13:20,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:13:20,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:13:20,995 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:13:20,997 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix013.opt.i Unable to find full path for "g++" [2024-10-31 22:13:23,050 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:13:23,336 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:13:23,337 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/sv-benchmarks/c/pthread-wmm/mix013.opt.i [2024-10-31 22:13:23,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/data/741b979a0/9f43e2c03e85436382259dd7da3ab5ed/FLAG7395b9064 [2024-10-31 22:13:23,639 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/data/741b979a0/9f43e2c03e85436382259dd7da3ab5ed [2024-10-31 22:13:23,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:13:23,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:13:23,644 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:23,644 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:13:23,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:13:23,653 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:23" (1/1) ... [2024-10-31 22:13:23,654 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a6f022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:23, skipping insertion in model container [2024-10-31 22:13:23,654 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:13:23" (1/1) ... [2024-10-31 22:13:23,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:13:24,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:24,362 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:13:24,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:13:24,514 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:13:24,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24 WrapperNode [2024-10-31 22:13:24,515 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:13:24,516 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:24,517 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:13:24,517 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:13:24,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,564 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,650 INFO L138 Inliner]: procedures = 176, calls = 56, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 972 [2024-10-31 22:13:24,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:13:24,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:13:24,652 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:13:24,652 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:13:24,676 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,676 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,705 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,722 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,729 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:13:24,730 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:13:24,731 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:13:24,731 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:13:24,732 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (1/1) ... [2024-10-31 22:13:24,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:13:24,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:13:24,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:13:24,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41031976-4e27-43ed-83ef-d61b9615286f/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:13:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:13:24,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:13:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:13:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:13:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:13:24,830 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:13:24,830 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:13:24,831 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:13:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:13:24,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:13:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:13:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:13:24,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:13:24,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:13:24,836 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:13:25,103 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:13:25,106 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:13:27,176 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:13:27,176 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:13:35,035 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:13:35,036 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:13:35,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:35 BoogieIcfgContainer [2024-10-31 22:13:35,036 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:13:35,039 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:13:35,039 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:13:35,042 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:13:35,043 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:13:23" (1/3) ... [2024-10-31 22:13:35,043 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9151ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:35, skipping insertion in model container [2024-10-31 22:13:35,044 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:13:24" (2/3) ... [2024-10-31 22:13:35,044 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f9151ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:13:35, skipping insertion in model container [2024-10-31 22:13:35,045 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:13:35" (3/3) ... [2024-10-31 22:13:35,046 INFO L112 eAbstractionObserver]: Analyzing ICFG mix013.opt.i [2024-10-31 22:13:35,066 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:13:35,067 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 297 error locations. [2024-10-31 22:13:35,067 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:13:35,472 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:13:35,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 432 transitions, 880 flow [2024-10-31 22:13:35,981 INFO L124 PetriNetUnfolderBase]: 3/428 cut-off events. [2024-10-31 22:13:35,982 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:36,003 INFO L83 FinitePrefix]: Finished finitePrefix Result has 441 conditions, 428 events. 3/428 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 2585 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 388. Up to 2 conditions per place. [2024-10-31 22:13:36,003 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 432 transitions, 880 flow [2024-10-31 22:13:36,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 438 places, 428 transitions, 868 flow [2024-10-31 22:13:36,057 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:13:36,065 INFO L333 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, 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;@382cccf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:13:36,067 INFO L334 AbstractCegarLoop]: Starting to check reachability of 559 error locations. [2024-10-31 22:13:36,077 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:13:36,078 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2024-10-31 22:13:36,078 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:13:36,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:36,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:36,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 555 more)] === [2024-10-31 22:13:36,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:36,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1083159635, now seen corresponding path program 1 times [2024-10-31 22:13:36,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:36,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256587594] [2024-10-31 22:13:36,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:36,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:36,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:36,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:36,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256587594] [2024-10-31 22:13:36,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256587594] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:36,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:36,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:13:36,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842172561] [2024-10-31 22:13:36,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:36,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:13:36,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:36,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:13:36,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:13:36,583 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 432 [2024-10-31 22:13:36,586 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 428 transitions, 868 flow. Second operand has 2 states, 2 states have (on average 112.0) internal successors, (224), 2 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) [2024-10-31 22:13:36,587 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:36,587 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 432 [2024-10-31 22:13:36,588 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:13:50,264 INFO L124 PetriNetUnfolderBase]: 5755/16429 cut-off events. [2024-10-31 22:13:50,264 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-10-31 22:13:50,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24424 conditions, 16429 events. 5755/16429 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 191581 event pairs, 5755 based on Foata normal form. 1391/16703 useless extension candidates. Maximal degree in co-relation 24369. Up to 7780 conditions per place. [2024-10-31 22:13:50,433 INFO L140 encePairwiseOnDemand]: 134/432 looper letters, 22 selfloop transitions, 0 changer transitions 0/128 dead transitions. [2024-10-31 22:13:50,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 128 transitions, 312 flow [2024-10-31 22:13:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:13:50,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:13:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 542 transitions. [2024-10-31 22:13:50,456 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6273148148148148 [2024-10-31 22:13:50,460 INFO L175 Difference]: Start difference. First operand has 438 places, 428 transitions, 868 flow. Second operand 2 states and 542 transitions. [2024-10-31 22:13:50,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 128 transitions, 312 flow [2024-10-31 22:13:50,466 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 128 transitions, 308 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:13:50,470 INFO L231 Difference]: Finished difference. Result has 138 places, 128 transitions, 264 flow [2024-10-31 22:13:50,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=432, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=264, PETRI_PLACES=138, PETRI_TRANSITIONS=128} [2024-10-31 22:13:50,480 INFO L277 CegarLoopForPetriNet]: 438 programPoint places, -300 predicate places. [2024-10-31 22:13:50,481 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 128 transitions, 264 flow [2024-10-31 22:13:50,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 112.0) internal successors, (224), 2 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) [2024-10-31 22:13:50,482 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:13:50,482 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:13:50,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:13:50,483 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 555 more)] === [2024-10-31 22:13:50,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:13:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash -599248185, now seen corresponding path program 1 times [2024-10-31 22:13:50,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:13:50,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195208243] [2024-10-31 22:13:50,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:13:50,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:13:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:13:50,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:13:50,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:13:50,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195208243] [2024-10-31 22:13:50,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195208243] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:13:50,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:13:50,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:13:50,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011091963] [2024-10-31 22:13:50,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:13:50,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:13:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:13:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:13:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:13:50,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 432 [2024-10-31 22:13:50,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 128 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 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) [2024-10-31 22:13:50,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:13:50,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 432 [2024-10-31 22:13:50,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand