./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/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_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/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_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/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 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:06:46,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:06:46,152 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:06:46,158 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:06:46,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:06:46,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:06:46,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:06:46,199 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:06:46,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:06:46,205 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:06:46,207 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:06:46,207 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:06:46,208 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:06:46,210 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:06:46,210 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:06:46,210 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:06:46,211 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:06:46,211 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:06:46,212 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:06:46,212 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:06:46,213 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:06:46,213 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:06:46,214 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:06:46,214 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:06:46,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:06:46,215 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:06:46,215 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:06:46,216 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:06:46,217 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:06:46,217 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:06:46,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:06:46,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:06:46,219 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:06:46,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:06:46,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:06:46,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:06:46,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:06:46,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:06:46,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:06:46,221 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:06:46,222 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:06:46,222 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_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35f6655b445fc5bf4a2ebfcafed490ee38fb52115875b19e3a717aa5f56b5e77 [2023-11-21 22:06:46,570 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:06:46,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:06:46,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:06:46,615 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:06:46,616 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:06:46,618 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i [2023-11-21 22:06:49,769 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:06:50,112 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:06:50,113 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/sv-benchmarks/c/pthread-wmm/rfi006_power.oepc.i [2023-11-21 22:06:50,144 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/data/08ddbb7ed/3d5804d76b6d4cf4960b772dad72e86f/FLAGa3c03961c [2023-11-21 22:06:50,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/data/08ddbb7ed/3d5804d76b6d4cf4960b772dad72e86f [2023-11-21 22:06:50,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:06:50,172 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:06:50,175 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:06:50,175 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:06:50,180 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:06:50,181 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:50" (1/1) ... [2023-11-21 22:06:50,182 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68cde520 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:50, skipping insertion in model container [2023-11-21 22:06:50,182 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:06:50" (1/1) ... [2023-11-21 22:06:50,234 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:06:50,813 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:06:50,830 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:06:50,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:06:51,002 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:06:51,002 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:06:51,010 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:06:51,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51 WrapperNode [2023-11-21 22:06:51,010 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:06:51,012 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:06:51,012 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:06:51,012 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:06:51,019 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,110 INFO L138 Inliner]: procedures = 176, calls = 76, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 324 [2023-11-21 22:06:51,111 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:06:51,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:06:51,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:06:51,113 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:06:51,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,133 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,179 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:06:51,254 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:06:51,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:06:51,255 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:06:51,256 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (1/1) ... [2023-11-21 22:06:51,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:06:51,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:06:51,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:06:51,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09e0bb93-5c76-4b95-b1f7-51c3b02aa42b/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:06:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:06:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:06:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:06:51,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:06:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:06:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:06:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-21 22:06:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-21 22:06:51,340 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-21 22:06:51,340 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-21 22:06:51,341 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-21 22:06:51,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-21 22:06:51,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:06:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:06:51,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:06:51,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:06:51,346 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 22:06:51,709 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:06:51,712 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:06:53,989 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:07:25,804 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:07:25,804 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:07:25,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:25 BoogieIcfgContainer [2023-11-21 22:07:25,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:07:25,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:07:25,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:07:25,812 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:07:25,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:06:50" (1/3) ... [2023-11-21 22:07:25,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7425674f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:25, skipping insertion in model container [2023-11-21 22:07:25,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:06:51" (2/3) ... [2023-11-21 22:07:25,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7425674f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:07:25, skipping insertion in model container [2023-11-21 22:07:25,815 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:07:25" (3/3) ... [2023-11-21 22:07:25,816 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi006_power.oepc.i [2023-11-21 22:07:25,828 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:07:25,840 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:07:25,841 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 327 error locations. [2023-11-21 22:07:25,841 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:07:26,707 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-21 22:07:26,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 471 places, 464 transitions, 940 flow [2023-11-21 22:07:27,621 INFO L124 PetriNetUnfolderBase]: 3/461 cut-off events. [2023-11-21 22:07:27,621 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:07:27,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 471 conditions, 461 events. 3/461 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 3136 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 407. Up to 2 conditions per place. [2023-11-21 22:07:27,648 INFO L82 GeneralOperation]: Start removeDead. Operand has 471 places, 464 transitions, 940 flow [2023-11-21 22:07:27,707 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 468 places, 461 transitions, 931 flow [2023-11-21 22:07:27,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:07:27,738 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;@126ff7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:07:27,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 612 error locations. [2023-11-21 22:07:27,766 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:07:27,766 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2023-11-21 22:07:27,767 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:07:27,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:27,768 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] [2023-11-21 22:07:27,768 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 608 more)] === [2023-11-21 22:07:27,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:27,776 INFO L85 PathProgramCache]: Analyzing trace with hash -1877140039, now seen corresponding path program 1 times [2023-11-21 22:07:27,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:27,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458432758] [2023-11-21 22:07:27,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:27,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:28,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:28,281 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 22:07:28,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:28,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458432758] [2023-11-21 22:07:28,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458432758] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:28,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:28,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 22:07:28,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662257172] [2023-11-21 22:07:28,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:28,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:07:28,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:28,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:07:28,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:07:28,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 119 out of 464 [2023-11-21 22:07:28,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 468 places, 461 transitions, 931 flow. Second operand has 2 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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 22:07:28,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:28,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 119 of 464 [2023-11-21 22:07:28,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:07:34,384 INFO L124 PetriNetUnfolderBase]: 691/3080 cut-off events. [2023-11-21 22:07:34,384 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-21 22:07:34,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4170 conditions, 3080 events. 691/3080 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 121. Compared 29042 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 22:07:34,420 INFO L140 encePairwiseOnDemand]: 136/464 looper letters, 16 selfloop transitions, 0 changer transitions 0/130 dead transitions. [2023-11-21 22:07:34,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 130 transitions, 301 flow [2023-11-21 22:07:34,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:07:34,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-21 22:07:34,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 582 transitions. [2023-11-21 22:07:34,442 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6271551724137931 [2023-11-21 22:07:34,443 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 582 transitions. [2023-11-21 22:07:34,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 582 transitions. [2023-11-21 22:07:34,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:07:34,450 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 582 transitions. [2023-11-21 22:07:34,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 291.0) internal successors, (582), 2 states have internal predecessors, (582), 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 22:07:34,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 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 22:07:34,463 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 464.0) internal successors, (1392), 3 states have internal predecessors, (1392), 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 22:07:34,465 INFO L175 Difference]: Start difference. First operand has 468 places, 461 transitions, 931 flow. Second operand 2 states and 582 transitions. [2023-11-21 22:07:34,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 130 transitions, 301 flow [2023-11-21 22:07:34,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 130 transitions, 298 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-21 22:07:34,476 INFO L231 Difference]: Finished difference. Result has 138 places, 130 transitions, 266 flow [2023-11-21 22:07:34,478 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=464, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=130, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=266, PETRI_PLACES=138, PETRI_TRANSITIONS=130} [2023-11-21 22:07:34,483 INFO L281 CegarLoopForPetriNet]: 468 programPoint places, -330 predicate places. [2023-11-21 22:07:34,483 INFO L495 AbstractCegarLoop]: Abstraction has has 138 places, 130 transitions, 266 flow [2023-11-21 22:07:34,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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 22:07:34,484 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:07:34,484 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] [2023-11-21 22:07:34,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:07:34,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 608 more)] === [2023-11-21 22:07:34,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:07:34,486 INFO L85 PathProgramCache]: Analyzing trace with hash -365473138, now seen corresponding path program 1 times [2023-11-21 22:07:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:07:34,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798222755] [2023-11-21 22:07:34,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:07:34,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:07:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:07:34,755 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 22:07:34,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:07:34,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798222755] [2023-11-21 22:07:34,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798222755] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:07:34,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:07:34,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:07:34,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34843341] [2023-11-21 22:07:34,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:07:34,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:07:34,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:07:34,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:07:34,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:07:34,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 464 [2023-11-21 22:07:34,766 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 130 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 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 22:07:34,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:07:34,767 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 464 [2023-11-21 22:07:34,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand