./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14d20b200dda38e95ec4ea5c7128c00d20347c5bcda51cecce271855ce0b9ab5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:02:06,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:02:06,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 21:02:06,228 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:02:06,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:02:06,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:02:06,255 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:02:06,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:02:06,257 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:02:06,258 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:02:06,259 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:02:06,259 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:02:06,260 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:02:06,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:02:06,261 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:02:06,262 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:02:06,262 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:02:06,263 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:02:06,263 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:02:06,264 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:02:06,264 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:02:06,265 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:02:06,266 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 21:02:06,266 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:02:06,267 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:02:06,267 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:02:06,268 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:02:06,268 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:02:06,269 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:02:06,269 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:02:06,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:06,271 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:02:06,271 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:02:06,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:02:06,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:02:06,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:02:06,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:02:06,274 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:02:06,274 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:02:06,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:02:06,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:02:06,276 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_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14d20b200dda38e95ec4ea5c7128c00d20347c5bcda51cecce271855ce0b9ab5 [2023-11-21 21:02:06,550 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:02:06,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:02:06,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:02:06,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:02:06,582 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:02:06,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i [2023-11-21 21:02:09,586 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:02:09,951 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:02:09,955 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/sv-benchmarks/c/pthread-wmm/rfi009_power.oepc.i [2023-11-21 21:02:09,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/data/c9279cfea/49ce9f5dee2547239f6d6ea0aa78e551/FLAG2a53e1c67 [2023-11-21 21:02:09,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/data/c9279cfea/49ce9f5dee2547239f6d6ea0aa78e551 [2023-11-21 21:02:10,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:02:10,008 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:02:10,010 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:10,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:02:10,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:02:10,018 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e880d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10, skipping insertion in model container [2023-11-21 21:02:10,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:02:10,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:10,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:02:10,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:02:10,800 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:02:10,804 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:02:10,814 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:02:10,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10 WrapperNode [2023-11-21 21:02:10,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:02:10,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:10,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:02:10,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:02:10,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,870 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,908 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 325 [2023-11-21 21:02:10,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:02:10,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:02:10,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:02:10,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:02:10,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,933 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:10,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:11,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:11,047 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:11,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:11,088 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:11,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:02:11,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:02:11,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:02:11,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:02:11,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (1/1) ... [2023-11-21 21:02:11,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:02:11,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:02:11,139 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:02:11,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbba6de8-b82c-4fd6-83d3-6ba8f2a072ed/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:02:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 21:02:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 21:02:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 21:02:11,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:02:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:02:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:02:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 21:02:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 21:02:11,189 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 21:02:11,189 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 21:02:11,190 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 21:02:11,190 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 21:02:11,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 21:02:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 21:02:11,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:02:11,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:02:11,195 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 21:02:11,498 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:02:11,501 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:02:13,718 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:02:45,420 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:02:45,420 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:02:45,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:45 BoogieIcfgContainer [2023-11-21 21:02:45,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:02:45,426 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:02:45,426 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:02:45,429 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:02:45,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:02:10" (1/3) ... [2023-11-21 21:02:45,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7b0ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:45, skipping insertion in model container [2023-11-21 21:02:45,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:02:10" (2/3) ... [2023-11-21 21:02:45,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7b0ca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:02:45, skipping insertion in model container [2023-11-21 21:02:45,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:02:45" (3/3) ... [2023-11-21 21:02:45,433 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi009_power.oepc.i [2023-11-21 21:02:45,443 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 21:02:45,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:02:45,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 328 error locations. [2023-11-21 21:02:45,456 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 21:02:46,583 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 21:02:46,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 473 places, 466 transitions, 944 flow [2023-11-21 21:02:47,254 INFO L124 PetriNetUnfolderBase]: 3/463 cut-off events. [2023-11-21 21:02:47,254 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:02:47,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 463 events. 3/463 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 3214 event pairs, 0 based on Foata normal form. 0/132 useless extension candidates. Maximal degree in co-relation 408. Up to 2 conditions per place. [2023-11-21 21:02:47,273 INFO L82 GeneralOperation]: Start removeDead. Operand has 473 places, 466 transitions, 944 flow [2023-11-21 21:02:47,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 463 transitions, 935 flow [2023-11-21 21:02:47,342 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:02:47,357 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@9b8edcc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:02:47,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 614 error locations. [2023-11-21 21:02:47,387 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 21:02:47,387 INFO L124 PetriNetUnfolderBase]: 0/61 cut-off events. [2023-11-21 21:02:47,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 21:02:47,387 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:47,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:47,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 610 more)] === [2023-11-21 21:02:47,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:47,396 INFO L85 PathProgramCache]: Analyzing trace with hash -456780035, now seen corresponding path program 1 times [2023-11-21 21:02:47,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:47,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383091736] [2023-11-21 21:02:47,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:47,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:47,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:47,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:47,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383091736] [2023-11-21 21:02:47,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383091736] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:47,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:47,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 21:02:47,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902469101] [2023-11-21 21:02:47,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:47,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 21:02:47,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 21:02:47,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 21:02:47,872 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 120 out of 466 [2023-11-21 21:02:47,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 463 transitions, 935 flow. Second operand has 2 states, 2 states have (on average 121.0) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:47,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:47,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 120 of 466 [2023-11-21 21:02:47,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 21:02:53,778 INFO L124 PetriNetUnfolderBase]: 691/3081 cut-off events. [2023-11-21 21:02:53,778 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-21 21:02:53,790 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4171 conditions, 3081 events. 691/3081 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 29153 event pairs, 691 based on Foata normal form. 213/3068 useless extension candidates. Maximal degree in co-relation 4104. Up to 1036 conditions per place. [2023-11-21 21:02:53,809 INFO L140 encePairwiseOnDemand]: 137/466 looper letters, 16 selfloop transitions, 0 changer transitions 0/131 dead transitions. [2023-11-21 21:02:53,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 131 transitions, 303 flow [2023-11-21 21:02:53,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 21:02:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 21:02:53,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 585 transitions. [2023-11-21 21:02:53,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6276824034334764 [2023-11-21 21:02:53,837 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 585 transitions. [2023-11-21 21:02:53,837 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 585 transitions. [2023-11-21 21:02:53,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 21:02:53,847 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 585 transitions. [2023-11-21 21:02:53,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 292.5) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:53,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:53,858 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:53,861 INFO L175 Difference]: Start difference. First operand has 470 places, 463 transitions, 935 flow. Second operand 2 states and 585 transitions. [2023-11-21 21:02:53,862 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 131 transitions, 303 flow [2023-11-21 21:02:53,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 131 transitions, 300 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 21:02:53,871 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 268 flow [2023-11-21 21:02:53,874 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=466, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=268, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2023-11-21 21:02:53,880 INFO L281 CegarLoopForPetriNet]: 470 programPoint places, -331 predicate places. [2023-11-21 21:02:53,881 INFO L495 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 268 flow [2023-11-21 21:02:53,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 121.0) internal successors, (242), 2 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:53,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 21:02:53,883 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:02:53,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:02:53,883 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 610 more)] === [2023-11-21 21:02:53,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:02:53,884 INFO L85 PathProgramCache]: Analyzing trace with hash 848443470, now seen corresponding path program 1 times [2023-11-21 21:02:53,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:02:53,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579876110] [2023-11-21 21:02:53,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:02:53,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:02:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:02:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 21:02:54,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:02:54,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579876110] [2023-11-21 21:02:54,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579876110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:02:54,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:02:54,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 21:02:54,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946762854] [2023-11-21 21:02:54,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:02:54,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:02:54,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:02:54,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:02:54,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:02:54,189 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 466 [2023-11-21 21:02:54,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 268 flow. Second operand has 3 states, 3 states have (on average 119.0) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 21:02:54,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 21:02:54,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 466 [2023-11-21 21:02:54,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand