./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix042.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix042.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:54:32,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:54:32,481 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 21:54:32,491 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:54:32,492 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:54:32,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:54:32,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:54:32,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:54:32,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:54:32,543 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:54:32,544 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:54:32,544 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:54:32,545 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:54:32,547 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:54:32,547 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:54:32,548 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:54:32,548 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:54:32,549 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:54:32,549 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:54:32,550 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:54:32,550 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:54:32,552 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:54:32,553 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 21:54:32,553 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:54:32,554 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:54:32,554 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:54:32,555 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:54:32,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:54:32,556 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:54:32,556 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:54:32,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:54:32,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:54:32,559 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:54:32,559 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:54:32,559 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:54:32,559 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:54:32,560 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:54:32,560 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:54:32,560 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:54:32,561 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:54:32,561 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:54:32,561 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_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65b1f643bcee3322b8ab5a998e6338f6065aa9114a28902f0ff5431bd8cb45ea [2023-11-06 21:54:32,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:54:32,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:54:32,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:54:32,919 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:54:32,919 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:54:32,921 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2023-11-06 21:54:36,150 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:54:36,453 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:54:36,454 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/sv-benchmarks/c/pthread-wmm/mix042.oepc.i [2023-11-06 21:54:36,474 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/data/60e262516/08c81382f89047beb16955c73fd33b5f/FLAG6d4229f74 [2023-11-06 21:54:36,491 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/data/60e262516/08c81382f89047beb16955c73fd33b5f [2023-11-06 21:54:36,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:54:36,495 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:54:36,497 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:54:36,497 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:54:36,503 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:54:36,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:54:36" (1/1) ... [2023-11-06 21:54:36,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f71545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:36, skipping insertion in model container [2023-11-06 21:54:36,506 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:54:36" (1/1) ... [2023-11-06 21:54:36,566 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:54:37,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:54:37,094 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:54:37,169 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:54:37,207 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:37,207 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:54:37,215 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:54:37,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37 WrapperNode [2023-11-06 21:54:37,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:54:37,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:54:37,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:54:37,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:54:37,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,249 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,290 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 497 [2023-11-06 21:54:37,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:54:37,291 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:54:37,291 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:54:37,291 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:54:37,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,309 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,323 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,379 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:54:37,425 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:54:37,425 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:54:37,425 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:54:37,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (1/1) ... [2023-11-06 21:54:37,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:54:37,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:54:37,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:54:37,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_951a4bab-d5c5-4309-886b-02759e054f0b/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:54:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:54:37,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 21:54:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:54:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:54:37,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:54:37,529 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 21:54:37,529 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 21:54:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 21:54:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 21:54:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 21:54:37,530 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 21:54:37,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:54:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 21:54:37,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:54:37,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:54:37,535 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 21:54:37,788 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:54:37,790 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:54:39,420 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:55:07,625 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:55:07,625 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 21:55:07,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:07 BoogieIcfgContainer [2023-11-06 21:55:07,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:55:07,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:55:07,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:55:07,636 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:55:07,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:54:36" (1/3) ... [2023-11-06 21:55:07,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e56fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:07, skipping insertion in model container [2023-11-06 21:55:07,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:54:37" (2/3) ... [2023-11-06 21:55:07,638 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e56fd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:55:07, skipping insertion in model container [2023-11-06 21:55:07,638 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:07" (3/3) ... [2023-11-06 21:55:07,639 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.oepc.i [2023-11-06 21:55:07,650 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 21:55:07,660 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:55:07,660 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 248 error locations. [2023-11-06 21:55:07,660 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 21:55:13,241 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 21:55:13,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 377 places, 370 transitions, 752 flow [2023-11-06 21:55:15,001 INFO L124 PetriNetUnfolderBase]: 3/367 cut-off events. [2023-11-06 21:55:15,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:55:15,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 367 events. 3/367 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2002 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 330. Up to 2 conditions per place. [2023-11-06 21:55:15,014 INFO L82 GeneralOperation]: Start removeDead. Operand has 377 places, 370 transitions, 752 flow [2023-11-06 21:55:15,038 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 374 places, 367 transitions, 743 flow [2023-11-06 21:55:15,042 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 21:55:15,053 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 374 places, 367 transitions, 743 flow [2023-11-06 21:55:15,056 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 374 places, 367 transitions, 743 flow [2023-11-06 21:55:15,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 374 places, 367 transitions, 743 flow [2023-11-06 21:55:16,454 INFO L124 PetriNetUnfolderBase]: 3/367 cut-off events. [2023-11-06 21:55:16,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:55:16,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 367 events. 3/367 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2002 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 330. Up to 2 conditions per place. [2023-11-06 21:55:16,495 INFO L119 LiptonReduction]: Number of co-enabled transitions 69396 [2023-11-06 21:55:33,011 WARN L293 SmtUtils]: Spent 5.90s on a formula simplification. DAG size of input: 1060 DAG size of output: 293 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:55:43,321 WARN L293 SmtUtils]: Spent 9.39s on a formula simplification. DAG size of input: 1242 DAG size of output: 409 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 21:56:02,233 INFO L134 LiptonReduction]: Checked pairs total: 622794 [2023-11-06 21:56:02,234 INFO L136 LiptonReduction]: Total number of compositions: 209 [2023-11-06 21:56:02,250 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:56:02,255 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2cdf5312, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:56:02,255 INFO L358 AbstractCegarLoop]: Starting to check reachability of 462 error locations. [2023-11-06 21:56:02,259 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 21:56:02,259 INFO L124 PetriNetUnfolderBase]: 0/2 cut-off events. [2023-11-06 21:56:02,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 21:56:02,260 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 21:56:02,260 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2023-11-06 21:56:02,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err10ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 458 more)] === [2023-11-06 21:56:02,266 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:56:02,266 INFO L85 PathProgramCache]: Analyzing trace with hash 6530234, now seen corresponding path program 1 times [2023-11-06 21:56:02,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:56:02,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609928824] [2023-11-06 21:56:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:56:02,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:56:02,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:56:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:56:02,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:56:02,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609928824] [2023-11-06 21:56:02,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609928824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:56:02,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:56:02,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 21:56:02,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73492872] [2023-11-06 21:56:02,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:56:02,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 21:56:02,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:56:02,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:56:02,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:56:02,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 100 out of 579 [2023-11-06 21:56:02,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 270 transitions, 549 flow. Second operand has 2 states, 2 states have (on average 101.5) internal successors, (203), 2 states have internal predecessors, (203), 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) [2023-11-06 21:56:02,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 21:56:02,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 100 of 579 [2023-11-06 21:56:02,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand