./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e9b64cc0 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --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 GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e9b64cc-m [2023-11-18 15:55:33,136 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-18 15:55:33,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-18 15:55:33,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-18 15:55:33,238 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-18 15:55:33,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-18 15:55:33,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-18 15:55:33,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-18 15:55:33,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-18 15:55:33,274 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-18 15:55:33,275 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-18 15:55:33,275 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-18 15:55:33,276 INFO L153 SettingsManager]: * Use SBE=true [2023-11-18 15:55:33,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-18 15:55:33,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-18 15:55:33,278 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-18 15:55:33,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-18 15:55:33,278 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-18 15:55:33,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-18 15:55:33,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-18 15:55:33,279 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-18 15:55:33,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-18 15:55:33,280 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-18 15:55:33,280 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-18 15:55:33,280 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-18 15:55:33,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-18 15:55:33,281 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-18 15:55:33,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-18 15:55:33,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-18 15:55:33,282 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-18 15:55:33,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-18 15:55:33,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-18 15:55:33,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-18 15:55:33,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-18 15:55:33,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-18 15:55:33,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-18 15:55:33,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-18 15:55:33,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-18 15:55:33,284 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-18 15:55:33,285 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-18 15:55:33,285 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-18 15:55:33,285 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-18 15:55:33,285 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-18 15:55:33,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1568f4b0615eb98ed6bee584aeda19485d9df0ed08c84a8233a5817e939c5388 [2023-11-18 15:55:33,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-18 15:55:33,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-18 15:55:33,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-18 15:55:33,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-18 15:55:33,560 INFO L274 PluginConnector]: CDTParser initialized [2023-11-18 15:55:33,562 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i [2023-11-18 15:55:34,779 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-18 15:55:35,055 INFO L384 CDTParser]: Found 1 translation units. [2023-11-18 15:55:35,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_power.oepc.i [2023-11-18 15:55:35,081 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0b0e8d444/06eb6cacd5e9445d990796e975e003d8/FLAG1e55f7e7b [2023-11-18 15:55:35,094 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/0b0e8d444/06eb6cacd5e9445d990796e975e003d8 [2023-11-18 15:55:35,098 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-18 15:55:35,099 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-18 15:55:35,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-18 15:55:35,100 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-18 15:55:35,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-18 15:55:35,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:35,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bedc5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35, skipping insertion in model container [2023-11-18 15:55:35,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:35,182 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-18 15:55:35,631 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-18 15:55:35,649 INFO L202 MainTranslator]: Completed pre-run [2023-11-18 15:55:35,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-18 15:55:35,832 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-18 15:55:35,832 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-18 15:55:35,840 INFO L206 MainTranslator]: Completed translation [2023-11-18 15:55:35,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35 WrapperNode [2023-11-18 15:55:35,841 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-18 15:55:35,842 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-18 15:55:35,843 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-18 15:55:35,843 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-18 15:55:35,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:35,912 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:35,998 INFO L138 Inliner]: procedures = 176, calls = 87, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 1107 [2023-11-18 15:55:35,999 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-18 15:55:36,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-18 15:55:36,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-18 15:55:36,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-18 15:55:36,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,054 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,055 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,106 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,116 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-18 15:55:36,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-18 15:55:36,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-18 15:55:36,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-18 15:55:36,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (1/1) ... [2023-11-18 15:55:36,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-18 15:55:36,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-18 15:55:36,180 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-18 15:55:36,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-18 15:55:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-18 15:55:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-18 15:55:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-18 15:55:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-18 15:55:36,227 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-18 15:55:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-18 15:55:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-18 15:55:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-18 15:55:36,228 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-18 15:55:36,228 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-18 15:55:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-18 15:55:36,229 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-18 15:55:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-18 15:55:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-18 15:55:36,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-18 15:55:36,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-18 15:55:36,232 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-18 15:55:36,443 INFO L237 CfgBuilder]: Building ICFG [2023-11-18 15:55:36,446 INFO L263 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-18 15:55:38,490 INFO L278 CfgBuilder]: Performing block encoding [2023-11-18 15:56:04,222 WARN L1811 r$LargeBlockEncoding]: Complex 2:92 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-18 15:56:05,405 INFO L298 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-18 15:56:05,406 INFO L303 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-18 15:56:05,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:56:05 BoogieIcfgContainer [2023-11-18 15:56:05,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-18 15:56:05,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-18 15:56:05,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-18 15:56:05,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-18 15:56:05,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:55:35" (1/3) ... [2023-11-18 15:56:05,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bb9d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:56:05, skipping insertion in model container [2023-11-18 15:56:05,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:55:35" (2/3) ... [2023-11-18 15:56:05,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bb9d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:56:05, skipping insertion in model container [2023-11-18 15:56:05,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:56:05" (3/3) ... [2023-11-18 15:56:05,421 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_power.oepc.i [2023-11-18 15:56:05,431 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-18 15:56:05,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-18 15:56:05,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 480 error locations. [2023-11-18 15:56:05,442 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-18 15:56:06,466 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-18 15:56:06,533 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-18 15:56:06,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-18 15:56:06,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-18 15:56:06,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-18 15:56:06,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-18 15:56:06,660 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-18 15:56:06,673 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork0 ======== [2023-11-18 15:56:06,679 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=PARTIAL_ORDER_FA, 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;@7e80aad8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-18 15:56:06,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 178 error locations. [2023-11-18 15:56:27,088 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P2Err0ASSERT_VIOLATIONDATA_RACE === [P2Err0ASSERT_VIOLATIONDATA_RACE, P2Err1ASSERT_VIOLATIONDATA_RACE, P2Err2ASSERT_VIOLATIONDATA_RACE, P2Err3ASSERT_VIOLATIONDATA_RACE (and 174 more)] === [2023-11-18 15:56:27,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-18 15:56:27,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1748131696, now seen corresponding path program 1 times [2023-11-18 15:56:27,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-18 15:56:27,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043106549] [2023-11-18 15:56:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-18 15:56:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-18 15:56:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-18 15:56:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-18 15:56:27,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-18 15:56:27,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043106549] [2023-11-18 15:56:27,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043106549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-18 15:56:27,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-18 15:56:27,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-18 15:56:27,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484006177] [2023-11-18 15:56:27,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-18 15:56:27,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-18 15:56:27,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-18 15:56:27,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-18 15:56:27,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-18 15:56:27,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-18 15:56:27,557 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-18 15:56:27,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 38.5) internal successors, (77), 2 states have internal predecessors, (77), 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) [2023-11-18 15:56:27,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.