./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e93f2d6f 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/safe016_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 a45428c1422efa85fd947d764edf0847add56b17c38e18f54072b18b642fedaf --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e93f2d6-m [2023-11-21 16:33:20,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 16:33:20,778 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-21 16:33:20,783 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 16:33:20,784 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 16:33:20,809 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 16:33:20,810 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 16:33:20,810 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 16:33:20,811 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 16:33:20,814 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 16:33:20,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 16:33:20,815 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 16:33:20,815 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 16:33:20,817 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 16:33:20,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 16:33:20,817 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 16:33:20,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 16:33:20,817 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 16:33:20,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 16:33:20,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 16:33:20,818 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 16:33:20,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 16:33:20,819 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 16:33:20,819 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 16:33:20,819 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 16:33:20,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 16:33:20,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 16:33:20,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 16:33:20,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 16:33:20,821 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-21 16:33:20,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 16:33:20,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 16:33:20,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 16:33:20,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 16:33:20,822 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 16:33:20,823 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 16:33:20,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 16:33:20,823 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 16:33:20,831 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 16:33:20,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 16:33:20,833 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 16:33:20,833 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 16:33:20,833 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 16:33:20,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a45428c1422efa85fd947d764edf0847add56b17c38e18f54072b18b642fedaf Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 16:33:21,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 16:33:21,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 16:33:21,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 16:33:21,166 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 16:33:21,166 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 16:33:21,167 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.i [2023-11-21 16:33:22,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 16:33:22,618 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 16:33:22,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_power.oepc.i [2023-11-21 16:33:22,642 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/386e643fe/e74661726e304085abca2980f15b060d/FLAG0eebfe0fa [2023-11-21 16:33:22,659 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/386e643fe/e74661726e304085abca2980f15b060d [2023-11-21 16:33:22,661 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 16:33:22,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 16:33:22,663 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 16:33:22,663 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 16:33:22,666 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 16:33:22,667 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:22" (1/1) ... [2023-11-21 16:33:22,667 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@183db8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:22, skipping insertion in model container [2023-11-21 16:33:22,668 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:22" (1/1) ... [2023-11-21 16:33:22,710 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 16:33:23,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:33:23,137 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 16:33:23,229 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:33:23,261 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:33:23,261 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:33:23,267 INFO L206 MainTranslator]: Completed translation [2023-11-21 16:33:23,267 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23 WrapperNode [2023-11-21 16:33:23,267 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 16:33:23,268 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 16:33:23,268 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 16:33:23,269 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 16:33:23,274 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,378 INFO L138 Inliner]: procedures = 177, calls = 88, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 811 [2023-11-21 16:33:23,388 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 16:33:23,389 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 16:33:23,389 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 16:33:23,389 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 16:33:23,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,398 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,406 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,434 INFO L193 HeapSplitter]: Split 30 memory accesses to 6 slices as follows [2, 1, 1, 1, 1, 24] [2023-11-21 16:33:23,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,511 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,520 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 16:33:23,521 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 16:33:23,521 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 16:33:23,521 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 16:33:23,522 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (1/1) ... [2023-11-21 16:33:23,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 16:33:23,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 16:33:23,562 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) [2023-11-21 16:33:23,582 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 [2023-11-21 16:33:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 16:33:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 16:33:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 16:33:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 16:33:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 16:33:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 16:33:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 16:33:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 16:33:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 16:33:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 16:33:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 16:33:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 16:33:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 16:33:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 16:33:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 16:33:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 16:33:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 16:33:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 16:33:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 16:33:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 16:33:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 16:33:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 16:33:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-21 16:33:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-21 16:33:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 16:33:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 16:33:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 16:33:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 16:33:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 16:33:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 16:33:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 16:33:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 16:33:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 16:33:23,620 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 16:33:23,821 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 16:33:23,823 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 16:33:25,102 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 16:33:47,717 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 16:33:47,718 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 16:33:47,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:47 BoogieIcfgContainer [2023-11-21 16:33:47,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 16:33:47,738 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 16:33:47,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 16:33:47,741 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 16:33:47,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:33:22" (1/3) ... [2023-11-21 16:33:47,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd3b204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:33:47, skipping insertion in model container [2023-11-21 16:33:47,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:23" (2/3) ... [2023-11-21 16:33:47,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd3b204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:33:47, skipping insertion in model container [2023-11-21 16:33:47,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:33:47" (3/3) ... [2023-11-21 16:33:47,758 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.oepc.i [2023-11-21 16:33:47,765 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 16:33:47,774 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 16:33:47,777 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 356 error locations. [2023-11-21 16:33:47,778 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 16:33:48,393 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 16:33:48,433 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 16:33:48,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 16:33:48,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 16:33:48,435 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) [2023-11-21 16:33:48,436 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 [2023-11-21 16:33:48,484 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 16:33:48,493 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork0 ======== [2023-11-21 16:33:48,498 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;@7de96c85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 16:33:48,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations.