./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU --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 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:03:20,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:20,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:03:20,181 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:20,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:20,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:20,222 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:20,223 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:20,224 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:20,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:20,225 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:20,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:20,226 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:20,228 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:20,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:20,233 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:03:20,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:20,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:03:20,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:20,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:20,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:20,237 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:20,238 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:03:20,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:20,238 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:03:20,239 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:03:20,239 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:20,239 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:20,239 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:20,240 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:20,240 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:20,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:20,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:20,243 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:20,244 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:20,244 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:20,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:20,245 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:20,245 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:20,245 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:20,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:20,246 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_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 449d00de99d52e6ea9aa539e57f46adfc8dfbb78972c0dc655f91843e743f43f [2024-10-31 22:03:20,536 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:20,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:20,569 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:20,570 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:20,571 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:20,572 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i Unable to find full path for "g++" [2024-10-31 22:03:22,660 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:22,952 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:22,952 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/sv-benchmarks/c/pthread-wmm/safe018_power.oepc.i [2024-10-31 22:03:22,975 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/data/69aafadd1/e2ac0e4ec11b470f8aa272e7f70e33b5/FLAG485f3a4fd [2024-10-31 22:03:22,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/data/69aafadd1/e2ac0e4ec11b470f8aa272e7f70e33b5 [2024-10-31 22:03:22,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:22,992 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:22,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:22,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:23,000 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:23,000 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:22" (1/1) ... [2024-10-31 22:03:23,001 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d82966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23, skipping insertion in model container [2024-10-31 22:03:23,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:22" (1/1) ... [2024-10-31 22:03:23,062 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:23,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:23,649 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:23,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:23,828 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:23,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23 WrapperNode [2024-10-31 22:03:23,829 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:23,830 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:23,830 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:23,830 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:23,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,917 INFO L138 Inliner]: procedures = 175, calls = 56, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 306 [2024-10-31 22:03:23,917 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:23,918 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:23,918 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:23,918 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:23,928 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,928 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,962 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,973 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,978 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:23,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:23,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:23,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:23,994 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:23,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (1/1) ... [2024-10-31 22:03:24,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:24,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:24,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:24,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae2c8cbc-f991-482d-9127-aed546e7beed/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:03:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:03:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:03:24,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:03:24,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:03:24,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:03:24,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:03:24,090 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:03:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:03:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:03:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:03:24,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:24,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:24,094 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:03:24,433 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:24,436 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:26,385 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:03:26,386 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:38,453 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:38,454 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:03:38,454 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:38 BoogieIcfgContainer [2024-10-31 22:03:38,454 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:38,458 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:38,458 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:38,462 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:38,462 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:22" (1/3) ... [2024-10-31 22:03:38,463 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3653e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:38, skipping insertion in model container [2024-10-31 22:03:38,463 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:23" (2/3) ... [2024-10-31 22:03:38,464 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f3653e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:38, skipping insertion in model container [2024-10-31 22:03:38,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:38" (3/3) ... [2024-10-31 22:03:38,466 INFO L112 eAbstractionObserver]: Analyzing ICFG safe018_power.oepc.i [2024-10-31 22:03:38,487 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:38,488 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 231 error locations. [2024-10-31 22:03:38,488 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:03:39,228 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:03:39,281 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 367 places, 360 transitions, 732 flow [2024-10-31 22:03:39,739 INFO L124 PetriNetUnfolderBase]: 3/357 cut-off events. [2024-10-31 22:03:39,739 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:39,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 367 conditions, 357 events. 3/357 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 2189 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 303. Up to 2 conditions per place. [2024-10-31 22:03:39,754 INFO L82 GeneralOperation]: Start removeDead. Operand has 367 places, 360 transitions, 732 flow [2024-10-31 22:03:39,773 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 364 places, 357 transitions, 723 flow [2024-10-31 22:03:39,782 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:39,789 INFO L333 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, 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;@40afe70d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:39,793 INFO L334 AbstractCegarLoop]: Starting to check reachability of 421 error locations. [2024-10-31 22:03:39,817 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:03:39,817 INFO L124 PetriNetUnfolderBase]: 0/60 cut-off events. [2024-10-31 22:03:39,818 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:39,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:39,819 INFO L204 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] [2024-10-31 22:03:39,819 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 417 more)] === [2024-10-31 22:03:39,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:39,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1608037866, now seen corresponding path program 1 times [2024-10-31 22:03:39,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:39,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455250998] [2024-10-31 22:03:39,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:39,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:40,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:40,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:40,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:40,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455250998] [2024-10-31 22:03:40,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455250998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:40,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:40,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:03:40,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724136156] [2024-10-31 22:03:40,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:40,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:03:40,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:40,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:03:40,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:03:40,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 360 [2024-10-31 22:03:40,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 357 transitions, 723 flow. Second operand has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 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) [2024-10-31 22:03:40,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:40,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 360 [2024-10-31 22:03:40,331 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:43,714 INFO L124 PetriNetUnfolderBase]: 493/1940 cut-off events. [2024-10-31 22:03:43,715 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-10-31 22:03:43,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2728 conditions, 1940 events. 493/1940 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 16466 event pairs, 493 based on Foata normal form. 158/1926 useless extension candidates. Maximal degree in co-relation 2662. Up to 750 conditions per place. [2024-10-31 22:03:43,732 INFO L140 encePairwiseOnDemand]: 128/360 looper letters, 15 selfloop transitions, 0 changer transitions 0/123 dead transitions. [2024-10-31 22:03:43,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 123 transitions, 285 flow [2024-10-31 22:03:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:03:43,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:03:43,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 471 transitions. [2024-10-31 22:03:43,749 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6541666666666667 [2024-10-31 22:03:43,753 INFO L175 Difference]: Start difference. First operand has 364 places, 357 transitions, 723 flow. Second operand 2 states and 471 transitions. [2024-10-31 22:03:43,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 123 transitions, 285 flow [2024-10-31 22:03:43,757 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 123 transitions, 282 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-31 22:03:43,761 INFO L231 Difference]: Finished difference. Result has 131 places, 123 transitions, 252 flow [2024-10-31 22:03:43,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=252, PETRI_PLACES=131, PETRI_TRANSITIONS=123} [2024-10-31 22:03:43,767 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, -233 predicate places. [2024-10-31 22:03:43,770 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 123 transitions, 252 flow [2024-10-31 22:03:43,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 113.0) internal successors, (226), 2 states have internal predecessors, (226), 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) [2024-10-31 22:03:43,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:43,771 INFO L204 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] [2024-10-31 22:03:43,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:03:43,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 417 more)] === [2024-10-31 22:03:43,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:43,773 INFO L85 PathProgramCache]: Analyzing trace with hash 97886561, now seen corresponding path program 1 times [2024-10-31 22:03:43,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:43,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667754738] [2024-10-31 22:03:43,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:43,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:43,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:03:43,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:43,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667754738] [2024-10-31 22:03:43,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667754738] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:43,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:43,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:03:43,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011865994] [2024-10-31 22:03:43,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:43,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:03:43,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:43,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:03:43,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:03:43,997 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 360 [2024-10-31 22:03:43,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 123 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2024-10-31 22:03:43,998 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:03:43,998 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 360 [2024-10-31 22:03:43,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:03:49,252 INFO L124 PetriNetUnfolderBase]: 759/2697 cut-off events. [2024-10-31 22:03:49,253 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:03:49,262 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3869 conditions, 2697 events. 759/2697 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 22894 event pairs, 227 based on Foata normal form. 0/2504 useless extension candidates. Maximal degree in co-relation 3866. Up to 772 conditions per place. [2024-10-31 22:03:49,274 INFO L140 encePairwiseOnDemand]: 358/360 looper letters, 25 selfloop transitions, 1 changer transitions 0/131 dead transitions. [2024-10-31 22:03:49,274 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 131 transitions, 320 flow [2024-10-31 22:03:49,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:03:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:03:49,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 354 transitions. [2024-10-31 22:03:49,277 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3277777777777778 [2024-10-31 22:03:49,278 INFO L175 Difference]: Start difference. First operand has 131 places, 123 transitions, 252 flow. Second operand 3 states and 354 transitions. [2024-10-31 22:03:49,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 131 transitions, 320 flow [2024-10-31 22:03:49,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 131 transitions, 320 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:03:49,282 INFO L231 Difference]: Finished difference. Result has 132 places, 122 transitions, 252 flow [2024-10-31 22:03:49,282 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=360, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=132, PETRI_TRANSITIONS=122} [2024-10-31 22:03:49,283 INFO L277 CegarLoopForPetriNet]: 364 programPoint places, -232 predicate places. [2024-10-31 22:03:49,283 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 122 transitions, 252 flow [2024-10-31 22:03:49,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 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) [2024-10-31 22:03:49,284 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:03:49,284 INFO L204 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:03:49,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:03:49,284 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr43ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 417 more)] === [2024-10-31 22:03:49,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 28611492, now seen corresponding path program 1 times [2024-10-31 22:03:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:49,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280286019] [2024-10-31 22:03:49,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:49,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms