./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 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_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx --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 e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:13:37,920 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:13:38,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:13:38,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:13:38,044 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:13:38,084 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:13:38,085 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:13:38,086 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:13:38,087 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:13:38,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:13:38,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:13:38,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:13:38,094 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:13:38,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:13:38,096 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:13:38,096 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:13:38,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:13:38,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:13:38,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:13:38,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:13:38,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:13:38,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:13:38,100 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:13:38,102 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:13:38,102 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:13:38,102 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:13:38,103 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:13:38,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:13:38,104 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:13:38,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:13:38,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:38,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:13:38,107 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:13:38,107 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:13:38,107 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:13:38,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:13:38,108 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:13:38,108 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:13:38,108 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:13:38,108 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:13:38,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:13:38,109 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_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2023-11-21 22:13:38,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:13:38,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:13:38,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:13:38,506 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:13:38,507 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:13:38,508 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2023-11-21 22:13:41,819 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:13:42,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:13:42,120 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2023-11-21 22:13:42,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/data/fbaff0c74/7122d76b40d74d3ebd3757500de9f1c4/FLAGa160f7d0c [2023-11-21 22:13:42,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/data/fbaff0c74/7122d76b40d74d3ebd3757500de9f1c4 [2023-11-21 22:13:42,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:13:42,169 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:13:42,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:42,176 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:13:42,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:13:42,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,184 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3261d5ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42, skipping insertion in model container [2023-11-21 22:13:42,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:42,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:13:42,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:42,756 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:13:42,918 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:13:42,971 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:13:42,972 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:13:42,981 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:13:42,981 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42 WrapperNode [2023-11-21 22:13:42,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:13:42,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:42,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:13:42,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:13:42,993 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,117 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 526 [2023-11-21 22:13:43,131 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:13:43,132 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:13:43,132 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:13:43,133 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:13:43,143 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,144 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,187 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,267 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,281 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:13:43,315 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:13:43,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:13:43,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:13:43,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (1/1) ... [2023-11-21 22:13:43,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:13:43,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:13:43,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:13:43,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97140503-5ec5-413a-8478-e5ca83ace837/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:13:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:13:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:13:43,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:13:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:13:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:13:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 22:13:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 22:13:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 22:13:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 22:13:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 22:13:43,434 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 22:13:43,434 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-21 22:13:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-21 22:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:13:43,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:13:43,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:13:43,439 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:13:43,692 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:13:43,694 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:13:45,379 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:13:52,946 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:13:52,946 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:13:52,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:52 BoogieIcfgContainer [2023-11-21 22:13:52,949 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:13:52,951 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:13:52,952 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:13:52,955 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:13:52,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:13:42" (1/3) ... [2023-11-21 22:13:52,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abb1a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:52, skipping insertion in model container [2023-11-21 22:13:52,957 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:13:42" (2/3) ... [2023-11-21 22:13:52,957 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abb1a8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:13:52, skipping insertion in model container [2023-11-21 22:13:52,958 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:13:52" (3/3) ... [2023-11-21 22:13:52,959 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2023-11-21 22:13:52,970 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:13:52,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:13:52,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 285 error locations. [2023-11-21 22:13:52,996 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:13:53,305 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:13:53,355 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 429 transitions, 874 flow [2023-11-21 22:13:53,653 INFO L124 PetriNetUnfolderBase]: 3/425 cut-off events. [2023-11-21 22:13:53,653 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:53,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 3/425 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2230 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 385. Up to 2 conditions per place. [2023-11-21 22:13:53,671 INFO L82 GeneralOperation]: Start removeDead. Operand has 439 places, 429 transitions, 874 flow [2023-11-21 22:13:53,709 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 435 places, 425 transitions, 862 flow [2023-11-21 22:13:53,720 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:13:53,727 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;@5ef67ed0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:13:53,728 INFO L358 AbstractCegarLoop]: Starting to check reachability of 536 error locations. [2023-11-21 22:13:53,739 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:13:53,739 INFO L124 PetriNetUnfolderBase]: 0/49 cut-off events. [2023-11-21 22:13:53,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:13:53,740 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:13:53,740 INFO L208 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] [2023-11-21 22:13:53,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 532 more)] === [2023-11-21 22:13:53,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:13:53,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1635890639, now seen corresponding path program 1 times [2023-11-21 22:13:53,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:13:53,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404850711] [2023-11-21 22:13:53,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:13:53,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:13:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:13:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:13:54,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:13:54,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404850711] [2023-11-21 22:13:54,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404850711] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:13:54,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:13:54,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:13:54,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874674578] [2023-11-21 22:13:54,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:13:54,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:13:54,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:13:54,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:13:54,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:13:54,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 429 [2023-11-21 22:13:54,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 435 places, 425 transitions, 862 flow. Second operand has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2023-11-21 22:13:54,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:13:54,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 429 [2023-11-21 22:13:54,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:14:10,628 INFO L124 PetriNetUnfolderBase]: 10870/36692 cut-off events. [2023-11-21 22:14:10,628 INFO L125 PetriNetUnfolderBase]: For 156/156 co-relation queries the response was YES. [2023-11-21 22:14:10,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51535 conditions, 36692 events. 10870/36692 cut-off events. For 156/156 co-relation queries the response was YES. Maximal size of possible extension queue 1226. Compared 501924 event pairs, 10870 based on Foata normal form. 2568/37316 useless extension candidates. Maximal degree in co-relation 51480. Up to 14526 conditions per place. [2023-11-21 22:14:10,975 INFO L140 encePairwiseOnDemand]: 143/429 looper letters, 25 selfloop transitions, 0 changer transitions 0/136 dead transitions. [2023-11-21 22:14:10,975 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 136 transitions, 334 flow [2023-11-21 22:14:10,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:14:10,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:14:10,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 545 transitions. [2023-11-21 22:14:11,003 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6351981351981352 [2023-11-21 22:14:11,005 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 545 transitions. [2023-11-21 22:14:11,005 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 545 transitions. [2023-11-21 22:14:11,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:14:11,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 545 transitions. [2023-11-21 22:14:11,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 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) [2023-11-21 22:14:11,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 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) [2023-11-21 22:14:11,032 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 429.0) internal successors, (1287), 3 states have internal predecessors, (1287), 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) [2023-11-21 22:14:11,034 INFO L175 Difference]: Start difference. First operand has 435 places, 425 transitions, 862 flow. Second operand 2 states and 545 transitions. [2023-11-21 22:14:11,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 136 transitions, 334 flow [2023-11-21 22:14:11,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 136 transitions, 330 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:14:11,046 INFO L231 Difference]: Finished difference. Result has 146 places, 136 transitions, 280 flow [2023-11-21 22:14:11,048 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=429, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=280, PETRI_PLACES=146, PETRI_TRANSITIONS=136} [2023-11-21 22:14:11,052 INFO L281 CegarLoopForPetriNet]: 435 programPoint places, -289 predicate places. [2023-11-21 22:14:11,053 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 136 transitions, 280 flow [2023-11-21 22:14:11,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 118.0) internal successors, (236), 2 states have internal predecessors, (236), 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) [2023-11-21 22:14:11,053 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:14:11,054 INFO L208 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] [2023-11-21 22:14:11,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:14:11,054 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 532 more)] === [2023-11-21 22:14:11,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:14:11,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1446428446, now seen corresponding path program 1 times [2023-11-21 22:14:11,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:14:11,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392369066] [2023-11-21 22:14:11,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:14:11,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:14:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:14:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:14:11,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:14:11,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392369066] [2023-11-21 22:14:11,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392369066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:14:11,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:14:11,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:14:11,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031200997] [2023-11-21 22:14:11,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:14:11,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:14:11,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:14:11,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:14:11,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:14:11,625 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 114 out of 429 [2023-11-21 22:14:11,626 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 136 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 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) [2023-11-21 22:14:11,626 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:14:11,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 114 of 429 [2023-11-21 22:14:11,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand