./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-figure1.wvr.c --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_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/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_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-figure1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/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_d719c7dd-434f-435b-8726-9918313e4291/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 611602be63cf2d0baa947efd80226c155579158ab3e72558e2c6507fec5bab01 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:12:19,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:12:19,346 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:12:19,359 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:12:19,360 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:12:19,397 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:12:19,397 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:12:19,398 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:12:19,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:12:19,404 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:12:19,405 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:12:19,405 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:12:19,406 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:12:19,408 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:12:19,408 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:12:19,408 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:12:19,409 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:12:19,409 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:12:19,410 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:12:19,410 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:12:19,410 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:12:19,411 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:12:19,411 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:12:19,412 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:12:19,412 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:12:19,412 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:12:19,413 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:12:19,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:12:19,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:12:19,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:12:19,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:19,416 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:12:19,416 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:12:19,416 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:12:19,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:12:19,417 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:12:19,417 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:12:19,417 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:12:19,418 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:12:19,418 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:12:19,418 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:12:19,419 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_d719c7dd-434f-435b-8726-9918313e4291/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 611602be63cf2d0baa947efd80226c155579158ab3e72558e2c6507fec5bab01 [2023-11-21 22:12:19,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:12:19,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:12:19,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:12:19,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:12:19,791 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:12:19,792 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/weaver/popl20-figure1.wvr.c [2023-11-21 22:12:22,940 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:12:23,201 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:12:23,202 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/sv-benchmarks/c/weaver/popl20-figure1.wvr.c [2023-11-21 22:12:23,214 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/data/ca9d57d18/b113edd28d56462b85d952579f94b223/FLAGa4e7c4342 [2023-11-21 22:12:23,237 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/data/ca9d57d18/b113edd28d56462b85d952579f94b223 [2023-11-21 22:12:23,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:12:23,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:12:23,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:23,248 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:12:23,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:12:23,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@273c0bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23, skipping insertion in model container [2023-11-21 22:12:23,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,289 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:12:23,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:23,522 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:12:23,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:12:23,555 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:23,556 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:12:23,563 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:12:23,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23 WrapperNode [2023-11-21 22:12:23,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:12:23,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:23,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:12:23,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:12:23,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,605 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 98 [2023-11-21 22:12:23,606 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:12:23,607 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:12:23,607 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:12:23,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:12:23,617 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,617 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,621 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,622 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:12:23,655 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:12:23,655 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:12:23,655 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:12:23,656 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (1/1) ... [2023-11-21 22:12:23,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:12:23,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:12:23,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:12:23,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:12:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:12:23,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-21 22:12:23,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-21 22:12:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-21 22:12:23,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-21 22:12:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:12:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:12:23,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:12:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-21 22:12:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-21 22:12:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:12:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:12:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:12:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:12:23,752 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 22:12:23,856 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:12:23,858 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:12:24,132 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:12:24,222 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:12:24,222 INFO L308 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-21 22:12:24,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:24 BoogieIcfgContainer [2023-11-21 22:12:24,225 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:12:24,227 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:12:24,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:12:24,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:12:24,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:12:23" (1/3) ... [2023-11-21 22:12:24,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3282748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:24, skipping insertion in model container [2023-11-21 22:12:24,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:12:23" (2/3) ... [2023-11-21 22:12:24,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3282748a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:12:24, skipping insertion in model container [2023-11-21 22:12:24,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:24" (3/3) ... [2023-11-21 22:12:24,234 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-figure1.wvr.c [2023-11-21 22:12:24,243 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:12:24,252 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:12:24,252 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-21 22:12:24,252 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:12:24,332 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-21 22:12:24,387 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 111 transitions, 236 flow [2023-11-21 22:12:24,483 INFO L124 PetriNetUnfolderBase]: 5/109 cut-off events. [2023-11-21 22:12:24,488 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:12:24,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 118 conditions, 109 events. 5/109 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 112 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2023-11-21 22:12:24,499 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 111 transitions, 236 flow [2023-11-21 22:12:24,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 88 transitions, 188 flow [2023-11-21 22:12:24,526 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:12:24,536 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;@17c507f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:12:24,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2023-11-21 22:12:24,559 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:12:24,559 INFO L124 PetriNetUnfolderBase]: 0/17 cut-off events. [2023-11-21 22:12:24,560 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:12:24,560 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:24,561 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:12:24,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-21 22:12:24,568 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:24,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1726767325, now seen corresponding path program 1 times [2023-11-21 22:12:24,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:24,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832427414] [2023-11-21 22:12:24,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:24,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:24,775 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 22:12:24,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:24,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832427414] [2023-11-21 22:12:24,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832427414] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:24,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:24,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:24,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029878640] [2023-11-21 22:12:24,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:24,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:24,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:24,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:24,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:24,860 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 111 [2023-11-21 22:12:24,864 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 88 transitions, 188 flow. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 22:12:24,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:24,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 111 [2023-11-21 22:12:24,866 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:24,936 INFO L124 PetriNetUnfolderBase]: 13/145 cut-off events. [2023-11-21 22:12:24,937 INFO L125 PetriNetUnfolderBase]: For 21/26 co-relation queries the response was YES. [2023-11-21 22:12:24,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 145 events. 13/145 cut-off events. For 21/26 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 383 event pairs, 8 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 120. Up to 31 conditions per place. [2023-11-21 22:12:24,941 INFO L140 encePairwiseOnDemand]: 101/111 looper letters, 11 selfloop transitions, 2 changer transitions 0/80 dead transitions. [2023-11-21 22:12:24,941 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 80 transitions, 198 flow [2023-11-21 22:12:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:24,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 282 transitions. [2023-11-21 22:12:24,957 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8468468468468469 [2023-11-21 22:12:24,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 282 transitions. [2023-11-21 22:12:24,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 282 transitions. [2023-11-21 22:12:24,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:24,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 282 transitions. [2023-11-21 22:12:24,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.0) internal successors, (282), 3 states have internal predecessors, (282), 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 22:12:24,972 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 22:12:24,972 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 22:12:24,974 INFO L175 Difference]: Start difference. First operand has 91 places, 88 transitions, 188 flow. Second operand 3 states and 282 transitions. [2023-11-21 22:12:24,976 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 80 transitions, 198 flow [2023-11-21 22:12:24,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 80 transitions, 190 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:12:24,987 INFO L231 Difference]: Finished difference. Result has 83 places, 80 transitions, 168 flow [2023-11-21 22:12:24,989 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=83, PETRI_TRANSITIONS=80} [2023-11-21 22:12:24,995 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -8 predicate places. [2023-11-21 22:12:24,996 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 80 transitions, 168 flow [2023-11-21 22:12:24,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 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 22:12:24,997 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:24,997 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] [2023-11-21 22:12:24,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:12:24,998 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-21 22:12:24,998 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:24,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1596264478, now seen corresponding path program 1 times [2023-11-21 22:12:24,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:25,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230787656] [2023-11-21 22:12:25,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:25,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:25,133 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 22:12:25,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:25,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230787656] [2023-11-21 22:12:25,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230787656] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:25,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:25,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:25,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745501863] [2023-11-21 22:12:25,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:25,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:25,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:25,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:25,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:25,153 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 111 [2023-11-21 22:12:25,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 80 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 22:12:25,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:25,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 111 [2023-11-21 22:12:25,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:25,213 INFO L124 PetriNetUnfolderBase]: 25/174 cut-off events. [2023-11-21 22:12:25,213 INFO L125 PetriNetUnfolderBase]: For 6/18 co-relation queries the response was YES. [2023-11-21 22:12:25,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 235 conditions, 174 events. 25/174 cut-off events. For 6/18 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 571 event pairs, 9 based on Foata normal form. 1/160 useless extension candidates. Maximal degree in co-relation 209. Up to 48 conditions per place. [2023-11-21 22:12:25,216 INFO L140 encePairwiseOnDemand]: 107/111 looper letters, 12 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-11-21 22:12:25,217 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 81 transitions, 199 flow [2023-11-21 22:12:25,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:25,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 283 transitions. [2023-11-21 22:12:25,220 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8498498498498499 [2023-11-21 22:12:25,221 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 283 transitions. [2023-11-21 22:12:25,221 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 283 transitions. [2023-11-21 22:12:25,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:25,222 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 283 transitions. [2023-11-21 22:12:25,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 94.33333333333333) internal successors, (283), 3 states have internal predecessors, (283), 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 22:12:25,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 22:12:25,226 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 22:12:25,226 INFO L175 Difference]: Start difference. First operand has 83 places, 80 transitions, 168 flow. Second operand 3 states and 283 transitions. [2023-11-21 22:12:25,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 81 transitions, 199 flow [2023-11-21 22:12:25,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 81 transitions, 195 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-21 22:12:25,230 INFO L231 Difference]: Finished difference. Result has 82 places, 80 transitions, 174 flow [2023-11-21 22:12:25,231 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=82, PETRI_TRANSITIONS=80} [2023-11-21 22:12:25,232 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -9 predicate places. [2023-11-21 22:12:25,232 INFO L495 AbstractCegarLoop]: Abstraction has has 82 places, 80 transitions, 174 flow [2023-11-21 22:12:25,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 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 22:12:25,233 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:25,234 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] [2023-11-21 22:12:25,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:12:25,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-21 22:12:25,235 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:25,235 INFO L85 PathProgramCache]: Analyzing trace with hash -437792986, now seen corresponding path program 1 times [2023-11-21 22:12:25,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:25,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107510456] [2023-11-21 22:12:25,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:25,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:25,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:25,968 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 22:12:25,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:25,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107510456] [2023-11-21 22:12:25,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107510456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:25,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:25,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:25,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572096684] [2023-11-21 22:12:25,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:25,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:12:25,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:25,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:12:25,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:12:26,139 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2023-11-21 22:12:26,141 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 80 transitions, 174 flow. Second operand has 6 states, 6 states have (on average 87.5) internal successors, (525), 6 states have internal predecessors, (525), 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 22:12:26,141 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:26,141 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2023-11-21 22:12:26,141 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:26,253 INFO L124 PetriNetUnfolderBase]: 55/248 cut-off events. [2023-11-21 22:12:26,254 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-21 22:12:26,257 INFO L83 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 248 events. 55/248 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1020 event pairs, 2 based on Foata normal form. 0/232 useless extension candidates. Maximal degree in co-relation 247. Up to 35 conditions per place. [2023-11-21 22:12:26,260 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 17 selfloop transitions, 4 changer transitions 0/87 dead transitions. [2023-11-21 22:12:26,260 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 87 transitions, 230 flow [2023-11-21 22:12:26,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:26,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:12:26,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 538 transitions. [2023-11-21 22:12:26,265 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8078078078078078 [2023-11-21 22:12:26,265 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 538 transitions. [2023-11-21 22:12:26,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 538 transitions. [2023-11-21 22:12:26,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:26,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 538 transitions. [2023-11-21 22:12:26,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 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 22:12:26,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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 22:12:26,274 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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 22:12:26,274 INFO L175 Difference]: Start difference. First operand has 82 places, 80 transitions, 174 flow. Second operand 6 states and 538 transitions. [2023-11-21 22:12:26,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 87 transitions, 230 flow [2023-11-21 22:12:26,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 87 transitions, 230 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:12:26,278 INFO L231 Difference]: Finished difference. Result has 86 places, 79 transitions, 180 flow [2023-11-21 22:12:26,279 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=86, PETRI_TRANSITIONS=79} [2023-11-21 22:12:26,280 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2023-11-21 22:12:26,280 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 79 transitions, 180 flow [2023-11-21 22:12:26,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.5) internal successors, (525), 6 states have internal predecessors, (525), 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 22:12:26,281 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:26,282 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] [2023-11-21 22:12:26,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:12:26,283 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-21 22:12:26,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:26,283 INFO L85 PathProgramCache]: Analyzing trace with hash -1370121057, now seen corresponding path program 1 times [2023-11-21 22:12:26,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:26,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367741281] [2023-11-21 22:12:26,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:26,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:26,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:26,812 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 22:12:26,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:26,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367741281] [2023-11-21 22:12:26,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367741281] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:26,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:26,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:12:26,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774046366] [2023-11-21 22:12:26,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:26,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:12:26,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:26,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:12:26,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:12:26,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 111 [2023-11-21 22:12:26,962 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 180 flow. Second operand has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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 22:12:26,962 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:26,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 111 [2023-11-21 22:12:26,963 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:27,040 INFO L124 PetriNetUnfolderBase]: 21/145 cut-off events. [2023-11-21 22:12:27,040 INFO L125 PetriNetUnfolderBase]: For 3/9 co-relation queries the response was YES. [2023-11-21 22:12:27,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 209 conditions, 145 events. 21/145 cut-off events. For 3/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 379 event pairs, 3 based on Foata normal form. 4/144 useless extension candidates. Maximal degree in co-relation 154. Up to 16 conditions per place. [2023-11-21 22:12:27,045 INFO L140 encePairwiseOnDemand]: 106/111 looper letters, 13 selfloop transitions, 4 changer transitions 0/82 dead transitions. [2023-11-21 22:12:27,045 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 82 transitions, 220 flow [2023-11-21 22:12:27,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:12:27,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:12:27,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 534 transitions. [2023-11-21 22:12:27,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8018018018018018 [2023-11-21 22:12:27,049 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 534 transitions. [2023-11-21 22:12:27,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 534 transitions. [2023-11-21 22:12:27,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:27,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 534 transitions. [2023-11-21 22:12:27,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 89.0) internal successors, (534), 6 states have internal predecessors, (534), 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 22:12:27,055 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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 22:12:27,057 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 111.0) internal successors, (777), 7 states have internal predecessors, (777), 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 22:12:27,058 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 180 flow. Second operand 6 states and 534 transitions. [2023-11-21 22:12:27,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 82 transitions, 220 flow [2023-11-21 22:12:27,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 82 transitions, 213 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:12:27,063 INFO L231 Difference]: Finished difference. Result has 86 places, 78 transitions, 179 flow [2023-11-21 22:12:27,063 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=179, PETRI_PLACES=86, PETRI_TRANSITIONS=78} [2023-11-21 22:12:27,066 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -5 predicate places. [2023-11-21 22:12:27,066 INFO L495 AbstractCegarLoop]: Abstraction has has 86 places, 78 transitions, 179 flow [2023-11-21 22:12:27,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 87.66666666666667) internal successors, (526), 6 states have internal predecessors, (526), 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 22:12:27,067 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:12:27,067 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] [2023-11-21 22:12:27,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 22:12:27,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 16 more)] === [2023-11-21 22:12:27,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:12:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1324503494, now seen corresponding path program 1 times [2023-11-21 22:12:27,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:12:27,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765140019] [2023-11-21 22:12:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:12:27,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:12:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:12:27,169 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 22:12:27,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:12:27,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765140019] [2023-11-21 22:12:27,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765140019] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:12:27,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:12:27,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:12:27,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135619080] [2023-11-21 22:12:27,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:12:27,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:12:27,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:12:27,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:12:27,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:12:27,178 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 93 out of 111 [2023-11-21 22:12:27,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 78 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 22:12:27,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:12:27,184 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 93 of 111 [2023-11-21 22:12:27,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:12:27,220 INFO L124 PetriNetUnfolderBase]: 11/129 cut-off events. [2023-11-21 22:12:27,221 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2023-11-21 22:12:27,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 170 conditions, 129 events. 11/129 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 302 event pairs, 3 based on Foata normal form. 1/125 useless extension candidates. Maximal degree in co-relation 150. Up to 16 conditions per place. [2023-11-21 22:12:27,222 INFO L140 encePairwiseOnDemand]: 109/111 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2023-11-21 22:12:27,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 77 transitions, 191 flow [2023-11-21 22:12:27,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:12:27,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:12:27,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 287 transitions. [2023-11-21 22:12:27,232 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8618618618618619 [2023-11-21 22:12:27,232 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 287 transitions. [2023-11-21 22:12:27,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 287 transitions. [2023-11-21 22:12:27,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:12:27,233 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 287 transitions. [2023-11-21 22:12:27,235 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.66666666666667) internal successors, (287), 3 states have internal predecessors, (287), 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 22:12:27,237 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 22:12:27,237 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 111.0) internal successors, (444), 4 states have internal predecessors, (444), 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 22:12:27,237 INFO L175 Difference]: Start difference. First operand has 86 places, 78 transitions, 179 flow. Second operand 3 states and 287 transitions. [2023-11-21 22:12:27,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 77 transitions, 191 flow [2023-11-21 22:12:27,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 77 transitions, 184 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-21 22:12:27,241 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2023-11-21 22:12:27,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=111, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2023-11-21 22:12:27,245 INFO L281 CegarLoopForPetriNet]: 91 programPoint places, -8 predicate places. [2023-11-21 22:12:27,245 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2023-11-21 22:12:27,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 22:12:27,249 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (19 of 20 remaining) [2023-11-21 22:12:27,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2023-11-21 22:12:27,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2023-11-21 22:12:27,250 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2023-11-21 22:12:27,251 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2023-11-21 22:12:27,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2023-11-21 22:12:27,252 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2023-11-21 22:12:27,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2023-11-21 22:12:27,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2023-11-21 22:12:27,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2023-11-21 22:12:27,253 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2023-11-21 22:12:27,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2023-11-21 22:12:27,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 20 remaining) [2023-11-21 22:12:27,254 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2023-11-21 22:12:27,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2023-11-21 22:12:27,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2023-11-21 22:12:27,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2023-11-21 22:12:27,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2023-11-21 22:12:27,256 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2023-11-21 22:12:27,261 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2023-11-21 22:12:27,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-21 22:12:27,262 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-21 22:12:27,271 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-21 22:12:27,271 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:12:27,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:12:27 BasicIcfg [2023-11-21 22:12:27,280 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:12:27,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:12:27,281 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:12:27,282 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:12:27,282 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:12:24" (3/4) ... [2023-11-21 22:12:27,284 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:12:27,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-21 22:12:27,288 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-21 22:12:27,296 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-21 22:12:27,296 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-21 22:12:27,297 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:12:27,297 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:12:27,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:12:27,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:12:27,430 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:12:27,431 INFO L158 Benchmark]: Toolchain (without parser) took 4187.20ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 111.7MB in the beginning and 156.5MB in the end (delta: -44.8MB). Peak memory consumption was 95.2MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,432 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:12:27,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.66ms. Allocated memory is still 155.2MB. Free memory was 111.3MB in the beginning and 99.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.31ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 98.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,433 INFO L158 Benchmark]: Boogie Preprocessor took 47.82ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 96.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,433 INFO L158 Benchmark]: RCFGBuilder took 569.73ms. Allocated memory is still 155.2MB. Free memory was 96.6MB in the beginning and 77.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,434 INFO L158 Benchmark]: TraceAbstraction took 3053.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 76.8MB in the beginning and 56.0MB in the end (delta: 20.8MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,434 INFO L158 Benchmark]: Witness Printer took 149.45ms. Allocated memory is still 186.6MB. Free memory was 56.0MB in the beginning and 156.5MB in the end (delta: -100.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-21 22:12:27,436 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.66ms. Allocated memory is still 155.2MB. Free memory was 111.3MB in the beginning and 99.8MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.31ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 98.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.82ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 96.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 569.73ms. Allocated memory is still 155.2MB. Free memory was 96.6MB in the beginning and 77.7MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3053.13ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 76.8MB in the beginning and 56.0MB in the end (delta: 20.8MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Witness Printer took 149.45ms. Allocated memory is still 186.6MB. Free memory was 56.0MB in the beginning and 156.5MB in the end (delta: -100.5MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 64]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 142 locations, 20 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 133 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 20 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=188occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 204 NumberOfCodeBlocks, 204 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 199 ConstructedInterpolants, 0 QuantifiedInterpolants, 367 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 11 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-21 22:12:27,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d719c7dd-434f-435b-8726-9918313e4291/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE