./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-wmm/safe018_power.opt.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/safe018_power.opt.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 81ed16bb51b8da596bb3c9a2024b72d3baf359b31125524126025207d822fe2c --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e93f2d6-m [2023-11-21 16:33:52,636 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 16:33:52,686 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-21 16:33:52,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 16:33:52,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 16:33:52,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 16:33:52,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 16:33:52,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 16:33:52,725 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 16:33:52,732 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 16:33:52,732 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 16:33:52,733 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 16:33:52,733 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 16:33:52,734 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 16:33:52,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 16:33:52,734 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 16:33:52,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 16:33:52,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 16:33:52,735 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 16:33:52,735 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 16:33:52,735 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 16:33:52,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 16:33:52,736 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 16:33:52,737 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 16:33:52,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 16:33:52,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 16:33:52,737 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 16:33:52,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 16:33:52,737 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 16:33:52,738 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-21 16:33:52,738 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 16:33:52,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 16:33:52,739 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 16:33:52,739 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 16:33:52,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 16:33:52,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 16:33:52,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 16:33:52,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 16:33:52,740 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 16:33:52,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 16:33:52,741 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 16:33:52,741 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 16:33:52,741 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 16:33:52,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81ed16bb51b8da596bb3c9a2024b72d3baf359b31125524126025207d822fe2c Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 16:33:53,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 16:33:53,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 16:33:53,024 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 16:33:53,025 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 16:33:53,026 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 16:33:53,027 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_power.opt.i [2023-11-21 16:33:54,146 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 16:33:54,372 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 16:33:54,373 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_power.opt.i [2023-11-21 16:33:54,403 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2c81775ab/a44959dbe38e4ba18dbd80f1c2e7af78/FLAGfab7ad6dc [2023-11-21 16:33:54,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/2c81775ab/a44959dbe38e4ba18dbd80f1c2e7af78 [2023-11-21 16:33:54,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 16:33:54,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 16:33:54,424 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 16:33:54,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 16:33:54,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 16:33:54,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:54,429 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12d1a41b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54, skipping insertion in model container [2023-11-21 16:33:54,430 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:54,472 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 16:33:54,889 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:33:54,899 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 16:33:54,947 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:33:54,991 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:33:54,992 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:33:54,997 INFO L206 MainTranslator]: Completed translation [2023-11-21 16:33:54,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54 WrapperNode [2023-11-21 16:33:54,998 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 16:33:54,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 16:33:54,999 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 16:33:54,999 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 16:33:55,005 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,058 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,097 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 552 [2023-11-21 16:33:55,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 16:33:55,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 16:33:55,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 16:33:55,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 16:33:55,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,108 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,116 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,140 INFO L193 HeapSplitter]: Split 27 memory accesses to 5 slices as follows [2, 22, 1, 1, 1] [2023-11-21 16:33:55,144 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,145 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,163 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,172 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,176 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,182 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 16:33:55,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 16:33:55,183 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 16:33:55,183 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 16:33:55,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (1/1) ... [2023-11-21 16:33:55,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 16:33:55,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 16:33:55,209 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 16:33:55,243 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 16:33:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 16:33:55,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 16:33:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 16:33:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 16:33:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 16:33:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 16:33:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 16:33:55,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 16:33:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 16:33:55,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 16:33:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 16:33:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 16:33:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 16:33:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 16:33:55,268 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 16:33:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 16:33:55,269 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 16:33:55,269 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 16:33:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 16:33:55,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 16:33:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 16:33:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 16:33:55,270 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 16:33:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 16:33:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 16:33:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 16:33:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 16:33:55,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 16:33:55,274 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 16:33:55,499 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 16:33:55,501 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 16:33:56,920 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 16:34:16,299 WARN L1820 r$LargeBlockEncoding]: Complex 5:11 sequential composition. Such compositions can cause exponential blowup and should not occur in structured programs. [2023-11-21 16:34:19,556 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 16:34:19,557 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 16:34:19,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:34:19 BoogieIcfgContainer [2023-11-21 16:34:19,559 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 16:34:19,561 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 16:34:19,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 16:34:19,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 16:34:19,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:33:54" (1/3) ... [2023-11-21 16:34:19,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e50f8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:34:19, skipping insertion in model container [2023-11-21 16:34:19,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:33:54" (2/3) ... [2023-11-21 16:34:19,570 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e50f8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:34:19, skipping insertion in model container [2023-11-21 16:34:19,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:34:19" (3/3) ... [2023-11-21 16:34:19,573 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.opt.i [2023-11-21 16:34:19,588 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 16:34:19,595 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 16:34:19,595 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 369 error locations. [2023-11-21 16:34:19,595 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 16:34:21,404 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 16:34:21,438 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 16:34:21,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-21 16:34:21,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-21 16:34:21,440 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 16:34:21,440 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 16:34:21,482 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-21 16:34:21,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == P2Thread1of1ForFork0 ======== [2023-11-21 16:34:21,501 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;@6459dc00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 16:34:21,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 178 error locations.