./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b 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_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:34:58,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:34:58,222 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:34:58,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:34:58,228 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:34:58,253 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:34:58,254 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:34:58,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:34:58,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:34:58,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:34:58,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:34:58,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:34:58,258 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:34:58,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:34:58,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:34:58,260 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:34:58,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:34:58,261 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:34:58,261 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:34:58,262 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:34:58,262 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:34:58,263 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:34:58,263 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:34:58,264 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:34:58,264 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:34:58,264 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:34:58,265 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:34:58,265 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:34:58,266 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:34:58,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:34:58,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:34:58,267 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:34:58,267 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:34:58,268 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:34:58,268 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:34:58,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:34:58,269 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:34:58,269 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:34:58,269 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:34:58,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:34:58,270 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:34:58,270 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_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8495a4f5aea7cc78cc34cbe091df9506d17978f2685019ca49cb76f0e1f4a919 [2023-11-06 22:34:58,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:34:58,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:34:58,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:34:58,610 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:34:58,610 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:34:58,612 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-atomic/dekker-b.i [2023-11-06 22:35:01,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:35:02,080 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:35:02,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/sv-benchmarks/c/pthread-atomic/dekker-b.i [2023-11-06 22:35:02,103 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/data/34a1300c6/c4281c406ebe4bfeb0bf30051160233a/FLAGf5c2a10f6 [2023-11-06 22:35:02,124 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/data/34a1300c6/c4281c406ebe4bfeb0bf30051160233a [2023-11-06 22:35:02,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:35:02,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:35:02,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:35:02,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:35:02,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:35:02,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c580e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02, skipping insertion in model container [2023-11-06 22:35:02,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,227 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:35:02,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:35:02,717 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:35:02,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:35:02,863 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:35:02,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02 WrapperNode [2023-11-06 22:35:02,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:35:02,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:35:02,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:35:02,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:35:02,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,950 INFO L138 Inliner]: procedures = 168, calls = 21, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 178 [2023-11-06 22:35:02,952 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:35:02,953 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:35:02,954 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:35:02,954 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:35:02,964 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,969 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:02,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:03,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:03,005 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:03,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:03,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:35:03,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:35:03,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:35:03,019 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:35:03,020 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (1/1) ... [2023-11-06 22:35:03,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:35:03,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:35:03,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:35:03,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:35:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:35:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-06 22:35:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-06 22:35:03,111 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 22:35:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 22:35:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:35:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:35:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:35:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:35:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:35:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:35:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:35:03,115 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:35:03,340 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:35:03,347 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:35:03,731 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:35:03,744 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:35:03,745 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 22:35:03,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:03 BoogieIcfgContainer [2023-11-06 22:35:03,753 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:35:03,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:35:03,756 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:35:03,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:35:03,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:35:02" (1/3) ... [2023-11-06 22:35:03,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:03, skipping insertion in model container [2023-11-06 22:35:03,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:35:02" (2/3) ... [2023-11-06 22:35:03,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f1995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:35:03, skipping insertion in model container [2023-11-06 22:35:03,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:03" (3/3) ... [2023-11-06 22:35:03,768 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker-b.i [2023-11-06 22:35:03,779 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:35:03,791 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:35:03,792 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-06 22:35:03,792 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:35:03,910 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:35:04,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 200 places, 209 transitions, 432 flow [2023-11-06 22:35:04,109 INFO L124 PetriNetUnfolderBase]: 16/207 cut-off events. [2023-11-06 22:35:04,110 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:35:04,120 INFO L83 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 207 events. 16/207 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 516 event pairs, 0 based on Foata normal form. 0/167 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2023-11-06 22:35:04,120 INFO L82 GeneralOperation]: Start removeDead. Operand has 200 places, 209 transitions, 432 flow [2023-11-06 22:35:04,129 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 197 transitions, 403 flow [2023-11-06 22:35:04,133 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:35:04,144 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 197 transitions, 403 flow [2023-11-06 22:35:04,148 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 197 transitions, 403 flow [2023-11-06 22:35:04,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 197 transitions, 403 flow [2023-11-06 22:35:04,204 INFO L124 PetriNetUnfolderBase]: 16/197 cut-off events. [2023-11-06 22:35:04,205 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:35:04,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 197 events. 16/197 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 515 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 155. Up to 3 conditions per place. [2023-11-06 22:35:04,218 INFO L119 LiptonReduction]: Number of co-enabled transitions 13736 [2023-11-06 22:35:08,643 INFO L134 LiptonReduction]: Checked pairs total: 90077 [2023-11-06 22:35:08,644 INFO L136 LiptonReduction]: Total number of compositions: 133 [2023-11-06 22:35:08,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:35:08,692 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=LoopsAndPotentialCycles, 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;@761e4f55, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:35:08,692 INFO L358 AbstractCegarLoop]: Starting to check reachability of 46 error locations. [2023-11-06 22:35:08,694 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:35:08,695 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:35:08,695 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:35:08,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:08,696 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:35:08,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:08,701 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:08,702 INFO L85 PathProgramCache]: Analyzing trace with hash 783, now seen corresponding path program 1 times [2023-11-06 22:35:08,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:08,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619716110] [2023-11-06 22:35:08,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:08,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:08,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:08,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:08,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:08,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619716110] [2023-11-06 22:35:08,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619716110] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:08,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:08,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:35:08,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809447667] [2023-11-06 22:35:08,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:08,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:35:08,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:08,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:35:08,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:35:08,884 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 194 out of 342 [2023-11-06 22:35:08,891 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 109 transitions, 227 flow. Second operand has 2 states, 2 states have (on average 194.5) internal successors, (389), 2 states have internal predecessors, (389), 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) [2023-11-06 22:35:08,891 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:35:08,891 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 194 of 342 [2023-11-06 22:35:08,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:35:09,224 INFO L124 PetriNetUnfolderBase]: 645/1837 cut-off events. [2023-11-06 22:35:09,225 INFO L125 PetriNetUnfolderBase]: For 28/28 co-relation queries the response was YES. [2023-11-06 22:35:09,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2903 conditions, 1837 events. 645/1837 cut-off events. For 28/28 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 13706 event pairs, 543 based on Foata normal form. 174/1765 useless extension candidates. Maximal degree in co-relation 2767. Up to 1021 conditions per place. [2023-11-06 22:35:09,247 INFO L140 encePairwiseOnDemand]: 330/342 looper letters, 34 selfloop transitions, 0 changer transitions 0/94 dead transitions. [2023-11-06 22:35:09,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 94 transitions, 265 flow [2023-11-06 22:35:09,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:35:09,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:35:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 434 transitions. [2023-11-06 22:35:09,263 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6345029239766082 [2023-11-06 22:35:09,263 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 434 transitions. [2023-11-06 22:35:09,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 434 transitions. [2023-11-06 22:35:09,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:35:09,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 434 transitions. [2023-11-06 22:35:09,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 217.0) internal successors, (434), 2 states have internal predecessors, (434), 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) [2023-11-06 22:35:09,279 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 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) [2023-11-06 22:35:09,280 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 342.0) internal successors, (1026), 3 states have internal predecessors, (1026), 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) [2023-11-06 22:35:09,282 INFO L175 Difference]: Start difference. First operand has 102 places, 109 transitions, 227 flow. Second operand 2 states and 434 transitions. [2023-11-06 22:35:09,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 94 transitions, 265 flow [2023-11-06 22:35:09,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 94 transitions, 260 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-11-06 22:35:09,289 INFO L231 Difference]: Finished difference. Result has 93 places, 94 transitions, 192 flow [2023-11-06 22:35:09,291 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=192, PETRI_PLACES=93, PETRI_TRANSITIONS=94} [2023-11-06 22:35:09,296 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -9 predicate places. [2023-11-06 22:35:09,296 INFO L495 AbstractCegarLoop]: Abstraction has has 93 places, 94 transitions, 192 flow [2023-11-06 22:35:09,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 194.5) internal successors, (389), 2 states have internal predecessors, (389), 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) [2023-11-06 22:35:09,297 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:09,297 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:35:09,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:35:09,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:09,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:09,298 INFO L85 PathProgramCache]: Analyzing trace with hash 749696002, now seen corresponding path program 1 times [2023-11-06 22:35:09,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:09,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288913905] [2023-11-06 22:35:09,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:09,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:09,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:09,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:09,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288913905] [2023-11-06 22:35:09,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288913905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:09,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:09,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:35:09,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79713341] [2023-11-06 22:35:09,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:09,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:09,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:09,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:09,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:09,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 342 [2023-11-06 22:35:09,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 94 transitions, 192 flow. Second operand has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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) [2023-11-06 22:35:09,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:35:09,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 342 [2023-11-06 22:35:09,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:35:09,792 INFO L124 PetriNetUnfolderBase]: 811/2115 cut-off events. [2023-11-06 22:35:09,792 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:35:09,797 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3432 conditions, 2115 events. 811/2115 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 15594 event pairs, 625 based on Foata normal form. 0/1804 useless extension candidates. Maximal degree in co-relation 3429. Up to 1209 conditions per place. [2023-11-06 22:35:09,809 INFO L140 encePairwiseOnDemand]: 338/342 looper letters, 53 selfloop transitions, 3 changer transitions 0/113 dead transitions. [2023-11-06 22:35:09,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 113 transitions, 344 flow [2023-11-06 22:35:09,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:35:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 612 transitions. [2023-11-06 22:35:09,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5964912280701754 [2023-11-06 22:35:09,814 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 612 transitions. [2023-11-06 22:35:09,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 612 transitions. [2023-11-06 22:35:09,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:35:09,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 612 transitions. [2023-11-06 22:35:09,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 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) [2023-11-06 22:35:09,821 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:09,822 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:09,823 INFO L175 Difference]: Start difference. First operand has 93 places, 94 transitions, 192 flow. Second operand 3 states and 612 transitions. [2023-11-06 22:35:09,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 113 transitions, 344 flow [2023-11-06 22:35:09,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 113 transitions, 344 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:35:09,827 INFO L231 Difference]: Finished difference. Result has 96 places, 96 transitions, 211 flow [2023-11-06 22:35:09,827 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=96, PETRI_TRANSITIONS=96} [2023-11-06 22:35:09,828 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -6 predicate places. [2023-11-06 22:35:09,828 INFO L495 AbstractCegarLoop]: Abstraction has has 96 places, 96 transitions, 211 flow [2023-11-06 22:35:09,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.66666666666666) internal successors, (560), 3 states have internal predecessors, (560), 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) [2023-11-06 22:35:09,829 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:09,830 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:09,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:35:09,830 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:09,831 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:09,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1014311006, now seen corresponding path program 1 times [2023-11-06 22:35:09,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:09,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820278014] [2023-11-06 22:35:09,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:09,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:09,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:09,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820278014] [2023-11-06 22:35:09,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820278014] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:09,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:09,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:35:09,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519134051] [2023-11-06 22:35:09,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:09,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:09,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:09,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:09,967 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 185 out of 342 [2023-11-06 22:35:09,968 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 96 transitions, 211 flow. Second operand has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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) [2023-11-06 22:35:09,968 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:35:09,968 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 185 of 342 [2023-11-06 22:35:09,969 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:35:10,285 INFO L124 PetriNetUnfolderBase]: 872/2343 cut-off events. [2023-11-06 22:35:10,285 INFO L125 PetriNetUnfolderBase]: For 143/165 co-relation queries the response was YES. [2023-11-06 22:35:10,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3866 conditions, 2343 events. 872/2343 cut-off events. For 143/165 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 17621 event pairs, 640 based on Foata normal form. 0/1980 useless extension candidates. Maximal degree in co-relation 3861. Up to 1276 conditions per place. [2023-11-06 22:35:10,304 INFO L140 encePairwiseOnDemand]: 338/342 looper letters, 53 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2023-11-06 22:35:10,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 114 transitions, 366 flow [2023-11-06 22:35:10,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:10,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:35:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 611 transitions. [2023-11-06 22:35:10,307 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5955165692007798 [2023-11-06 22:35:10,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 611 transitions. [2023-11-06 22:35:10,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 611 transitions. [2023-11-06 22:35:10,308 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:35:10,308 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 611 transitions. [2023-11-06 22:35:10,311 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 203.66666666666666) internal successors, (611), 3 states have internal predecessors, (611), 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) [2023-11-06 22:35:10,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:10,315 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:10,315 INFO L175 Difference]: Start difference. First operand has 96 places, 96 transitions, 211 flow. Second operand 3 states and 611 transitions. [2023-11-06 22:35:10,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 114 transitions, 366 flow [2023-11-06 22:35:10,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 114 transitions, 361 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:35:10,321 INFO L231 Difference]: Finished difference. Result has 98 places, 98 transitions, 227 flow [2023-11-06 22:35:10,321 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=227, PETRI_PLACES=98, PETRI_TRANSITIONS=98} [2023-11-06 22:35:10,322 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -4 predicate places. [2023-11-06 22:35:10,322 INFO L495 AbstractCegarLoop]: Abstraction has has 98 places, 98 transitions, 227 flow [2023-11-06 22:35:10,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 187.33333333333334) internal successors, (562), 3 states have internal predecessors, (562), 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) [2023-11-06 22:35:10,323 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:10,323 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:10,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:35:10,324 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:10,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:10,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1096526064, now seen corresponding path program 1 times [2023-11-06 22:35:10,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:10,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758779128] [2023-11-06 22:35:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:10,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:10,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:10,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758779128] [2023-11-06 22:35:10,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758779128] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:10,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:10,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:35:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212477568] [2023-11-06 22:35:10,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:10,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:10,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:10,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:10,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:10,383 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 342 [2023-11-06 22:35:10,384 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 98 transitions, 227 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2023-11-06 22:35:10,384 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:35:10,384 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 342 [2023-11-06 22:35:10,384 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:35:10,861 INFO L124 PetriNetUnfolderBase]: 1468/4081 cut-off events. [2023-11-06 22:35:10,861 INFO L125 PetriNetUnfolderBase]: For 298/352 co-relation queries the response was YES. [2023-11-06 22:35:10,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6777 conditions, 4081 events. 1468/4081 cut-off events. For 298/352 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 35219 event pairs, 337 based on Foata normal form. 2/3495 useless extension candidates. Maximal degree in co-relation 6771. Up to 1253 conditions per place. [2023-11-06 22:35:10,895 INFO L140 encePairwiseOnDemand]: 335/342 looper letters, 67 selfloop transitions, 7 changer transitions 0/131 dead transitions. [2023-11-06 22:35:10,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 131 transitions, 455 flow [2023-11-06 22:35:10,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:10,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:35:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 632 transitions. [2023-11-06 22:35:10,898 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6159844054580896 [2023-11-06 22:35:10,898 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 632 transitions. [2023-11-06 22:35:10,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 632 transitions. [2023-11-06 22:35:10,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:35:10,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 632 transitions. [2023-11-06 22:35:10,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.66666666666666) internal successors, (632), 3 states have internal predecessors, (632), 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) [2023-11-06 22:35:10,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:10,906 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:10,906 INFO L175 Difference]: Start difference. First operand has 98 places, 98 transitions, 227 flow. Second operand 3 states and 632 transitions. [2023-11-06 22:35:10,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 131 transitions, 455 flow [2023-11-06 22:35:10,909 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 131 transitions, 449 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:35:10,911 INFO L231 Difference]: Finished difference. Result has 101 places, 105 transitions, 288 flow [2023-11-06 22:35:10,912 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=101, PETRI_TRANSITIONS=105} [2023-11-06 22:35:10,913 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, -1 predicate places. [2023-11-06 22:35:10,913 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 105 transitions, 288 flow [2023-11-06 22:35:10,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 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) [2023-11-06 22:35:10,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:10,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:10,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:35:10,915 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:10,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:10,915 INFO L85 PathProgramCache]: Analyzing trace with hash 204895872, now seen corresponding path program 1 times [2023-11-06 22:35:10,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:10,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855229145] [2023-11-06 22:35:10,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:10,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:10,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:10,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:10,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855229145] [2023-11-06 22:35:10,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855229145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:10,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:10,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:35:10,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471144084] [2023-11-06 22:35:10,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:10,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:10,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:10,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:10,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:10,973 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 342 [2023-11-06 22:35:10,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 105 transitions, 288 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-06 22:35:10,975 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:35:10,975 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 342 [2023-11-06 22:35:10,975 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:35:11,799 INFO L124 PetriNetUnfolderBase]: 2507/6928 cut-off events. [2023-11-06 22:35:11,800 INFO L125 PetriNetUnfolderBase]: For 1145/1213 co-relation queries the response was YES. [2023-11-06 22:35:11,819 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11984 conditions, 6928 events. 2507/6928 cut-off events. For 1145/1213 co-relation queries the response was YES. Maximal size of possible extension queue 311. Compared 66407 event pairs, 557 based on Foata normal form. 6/5935 useless extension candidates. Maximal degree in co-relation 11977. Up to 1987 conditions per place. [2023-11-06 22:35:11,859 INFO L140 encePairwiseOnDemand]: 335/342 looper letters, 70 selfloop transitions, 7 changer transitions 0/138 dead transitions. [2023-11-06 22:35:11,860 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 138 transitions, 529 flow [2023-11-06 22:35:11,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:11,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:35:11,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 630 transitions. [2023-11-06 22:35:11,863 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6140350877192983 [2023-11-06 22:35:11,863 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 630 transitions. [2023-11-06 22:35:11,863 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 630 transitions. [2023-11-06 22:35:11,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:35:11,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 630 transitions. [2023-11-06 22:35:11,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 210.0) internal successors, (630), 3 states have internal predecessors, (630), 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) [2023-11-06 22:35:11,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:11,870 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:11,871 INFO L175 Difference]: Start difference. First operand has 101 places, 105 transitions, 288 flow. Second operand 3 states and 630 transitions. [2023-11-06 22:35:11,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 138 transitions, 529 flow [2023-11-06 22:35:11,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 138 transitions, 511 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:35:11,879 INFO L231 Difference]: Finished difference. Result has 103 places, 112 transitions, 338 flow [2023-11-06 22:35:11,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=338, PETRI_PLACES=103, PETRI_TRANSITIONS=112} [2023-11-06 22:35:11,880 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 1 predicate places. [2023-11-06 22:35:11,881 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 112 transitions, 338 flow [2023-11-06 22:35:11,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-06 22:35:11,882 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:11,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:11,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:35:11,882 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:11,883 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:11,883 INFO L85 PathProgramCache]: Analyzing trace with hash 913873640, now seen corresponding path program 1 times [2023-11-06 22:35:11,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:11,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467463283] [2023-11-06 22:35:11,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:11,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:35:11,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:35:11,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:35:11,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467463283] [2023-11-06 22:35:11,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467463283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:35:11,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:35:11,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:35:11,932 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662564363] [2023-11-06 22:35:11,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:35:11,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:35:11,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:35:11,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:35:11,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:35:11,942 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 188 out of 342 [2023-11-06 22:35:11,943 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 112 transitions, 338 flow. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-06 22:35:11,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:35:11,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 188 of 342 [2023-11-06 22:35:11,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:35:12,726 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([567] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][24], [75#L694true, Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 77#L725-4true, thr2Thread1of1ForFork1InUse, 228#true, Black: 216#true, 203#true, 167#L718true]) [2023-11-06 22:35:12,726 INFO L294 olderBase$Statistics]: this new event has 40 ancestors and is cut-off event [2023-11-06 22:35:12,727 INFO L297 olderBase$Statistics]: existing Event has 31 ancestors and is cut-off event [2023-11-06 22:35:12,727 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-06 22:35:12,727 INFO L297 olderBase$Statistics]: existing Event has 25 ancestors and is cut-off event [2023-11-06 22:35:12,727 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14#1_15| |v_#race~flag2~0_24|) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_24|, thr2Thread1of1ForFork1_#t~nondet14#1=|v_thr2Thread1of1ForFork1_#t~nondet14#1_15|} AuxVars[] AssignedVars[#race~flag2~0, thr2Thread1of1ForFork1_#t~nondet14#1][122], [60#L693-2true, Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 77#L725-4true, 79#L718-3true, thr2Thread1of1ForFork1InUse, Black: 218#(= |#race~flag2~0| 0), 230#(= ~flag2~0 0), 203#true]) [2023-11-06 22:35:12,728 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-06 22:35:12,728 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-06 22:35:12,728 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-06 22:35:12,728 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-06 22:35:12,733 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([567] L693-2-->L694: Formula: (<= 1 v_~flag2~0_6) InVars {~flag2~0=v_~flag2~0_6} OutVars{~flag2~0=v_~flag2~0_6} AuxVars[] AssignedVars[][24], [75#L694true, 38#L726-6true, Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), thr2Thread1of1ForFork1InUse, Black: 216#true, 228#true, 203#true, 167#L718true]) [2023-11-06 22:35:12,734 INFO L294 olderBase$Statistics]: this new event has 41 ancestors and is cut-off event [2023-11-06 22:35:12,734 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-06 22:35:12,734 INFO L297 olderBase$Statistics]: existing Event has 32 ancestors and is cut-off event [2023-11-06 22:35:12,734 INFO L297 olderBase$Statistics]: existing Event has 26 ancestors and is cut-off event [2023-11-06 22:35:12,734 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([668] L718-1-->L718-3: Formula: (= |v_thr2Thread1of1ForFork1_#t~nondet14#1_15| |v_#race~flag2~0_24|) InVars {} OutVars{#race~flag2~0=|v_#race~flag2~0_24|, thr2Thread1of1ForFork1_#t~nondet14#1=|v_thr2Thread1of1ForFork1_#t~nondet14#1_15|} AuxVars[] AssignedVars[#race~flag2~0, thr2Thread1of1ForFork1_#t~nondet14#1][122], [60#L693-2true, 38#L726-6true, Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 79#L718-3true, thr2Thread1of1ForFork1InUse, Black: 218#(= |#race~flag2~0| 0), 230#(= ~flag2~0 0), 203#true]) [2023-11-06 22:35:12,735 INFO L294 olderBase$Statistics]: this new event has 42 ancestors and is cut-off event [2023-11-06 22:35:12,735 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-06 22:35:12,735 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-06 22:35:12,735 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-06 22:35:12,746 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([653] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6#1_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6#1][28], [Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 77#L725-4true, 7#L700-2true, thr2Thread1of1ForFork1InUse, 105#L718-1true, 230#(= ~flag2~0 0), Black: 216#true, 203#true]) [2023-11-06 22:35:12,747 INFO L294 olderBase$Statistics]: this new event has 43 ancestors and is cut-off event [2023-11-06 22:35:12,747 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-06 22:35:12,747 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-06 22:35:12,747 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-06 22:35:12,747 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([653] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6#1_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6#1][42], [Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 77#L725-4true, 7#L700-2true, thr2Thread1of1ForFork1InUse, Black: 216#true, 228#true, 203#true, 167#L718true]) [2023-11-06 22:35:12,747 INFO L294 olderBase$Statistics]: this new event has 42 ancestors and is cut-off event [2023-11-06 22:35:12,748 INFO L297 olderBase$Statistics]: existing Event has 33 ancestors and is cut-off event [2023-11-06 22:35:12,748 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-06 22:35:12,748 INFO L297 olderBase$Statistics]: existing Event has 27 ancestors and is cut-off event [2023-11-06 22:35:12,749 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([653] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6#1_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6#1][28], [38#L726-6true, Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 7#L700-2true, thr2Thread1of1ForFork1InUse, 105#L718-1true, 230#(= ~flag2~0 0), Black: 216#true, 203#true]) [2023-11-06 22:35:12,749 INFO L294 olderBase$Statistics]: this new event has 44 ancestors and is cut-off event [2023-11-06 22:35:12,749 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-06 22:35:12,750 INFO L297 olderBase$Statistics]: existing Event has 29 ancestors and is cut-off event [2023-11-06 22:35:12,750 INFO L297 olderBase$Statistics]: existing Event has 35 ancestors and is cut-off event [2023-11-06 22:35:12,750 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([653] L700-->L700-2: Formula: (= |v_#race~x~0_17| |v_thr1Thread1of1ForFork0_#t~nondet6#1_17|) InVars {} OutVars{#race~x~0=|v_#race~x~0_17|, thr1Thread1of1ForFork0_#t~nondet6#1=|v_thr1Thread1of1ForFork0_#t~nondet6#1_17|} AuxVars[] AssignedVars[#race~x~0, thr1Thread1of1ForFork0_#t~nondet6#1][42], [38#L726-6true, Black: 208#(= |#race~flag1~0| |thr1Thread1of1ForFork0_#t~nondet3#1|), Black: 222#true, 224#(= |#race~flag1~0| 0), Black: 213#(= |thr2Thread1of1ForFork1_#t~nondet9#1| |#race~flag2~0|), 7#L700-2true, thr2Thread1of1ForFork1InUse, Black: 216#true, 228#true, 203#true, 167#L718true]) [2023-11-06 22:35:12,750 INFO L294 olderBase$Statistics]: this new event has 43 ancestors and is cut-off event [2023-11-06 22:35:12,750 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-06 22:35:12,750 INFO L297 olderBase$Statistics]: existing Event has 28 ancestors and is cut-off event [2023-11-06 22:35:12,751 INFO L297 olderBase$Statistics]: existing Event has 34 ancestors and is cut-off event [2023-11-06 22:35:12,755 INFO L124 PetriNetUnfolderBase]: 2565/6771 cut-off events. [2023-11-06 22:35:12,755 INFO L125 PetriNetUnfolderBase]: For 1198/1274 co-relation queries the response was YES. [2023-11-06 22:35:12,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12334 conditions, 6771 events. 2565/6771 cut-off events. For 1198/1274 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 63239 event pairs, 775 based on Foata normal form. 64/5896 useless extension candidates. Maximal degree in co-relation 12326. Up to 2423 conditions per place. [2023-11-06 22:35:12,801 INFO L140 encePairwiseOnDemand]: 336/342 looper letters, 60 selfloop transitions, 5 changer transitions 0/132 dead transitions. [2023-11-06 22:35:12,801 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 132 transitions, 535 flow [2023-11-06 22:35:12,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:35:12,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:35:12,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 618 transitions. [2023-11-06 22:35:12,804 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6023391812865497 [2023-11-06 22:35:12,805 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 618 transitions. [2023-11-06 22:35:12,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 618 transitions. [2023-11-06 22:35:12,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:35:12,806 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 618 transitions. [2023-11-06 22:35:12,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 206.0) internal successors, (618), 3 states have internal predecessors, (618), 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) [2023-11-06 22:35:12,811 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:12,812 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 342.0) internal successors, (1368), 4 states have internal predecessors, (1368), 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) [2023-11-06 22:35:12,812 INFO L175 Difference]: Start difference. First operand has 103 places, 112 transitions, 338 flow. Second operand 3 states and 618 transitions. [2023-11-06 22:35:12,812 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 132 transitions, 535 flow [2023-11-06 22:35:12,817 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 132 transitions, 515 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 22:35:12,820 INFO L231 Difference]: Finished difference. Result has 104 places, 112 transitions, 341 flow [2023-11-06 22:35:12,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=342, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=341, PETRI_PLACES=104, PETRI_TRANSITIONS=112} [2023-11-06 22:35:12,821 INFO L281 CegarLoopForPetriNet]: 102 programPoint places, 2 predicate places. [2023-11-06 22:35:12,822 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 112 transitions, 341 flow [2023-11-06 22:35:12,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 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) [2023-11-06 22:35:12,822 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:35:12,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:12,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:35:12,823 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err6ASSERT_VIOLATIONDATA_RACE (and 42 more)] === [2023-11-06 22:35:12,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:35:12,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1788487955, now seen corresponding path program 1 times [2023-11-06 22:35:12,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:35:12,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572460834] [2023-11-06 22:35:12,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:35:12,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:35:12,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:35:12,844 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:35:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:35:12,892 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:35:12,892 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:35:12,893 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (45 of 46 remaining) [2023-11-06 22:35:12,895 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (44 of 46 remaining) [2023-11-06 22:35:12,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (43 of 46 remaining) [2023-11-06 22:35:12,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (42 of 46 remaining) [2023-11-06 22:35:12,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (41 of 46 remaining) [2023-11-06 22:35:12,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (40 of 46 remaining) [2023-11-06 22:35:12,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (39 of 46 remaining) [2023-11-06 22:35:12,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (38 of 46 remaining) [2023-11-06 22:35:12,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (37 of 46 remaining) [2023-11-06 22:35:12,897 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (36 of 46 remaining) [2023-11-06 22:35:12,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (35 of 46 remaining) [2023-11-06 22:35:12,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (34 of 46 remaining) [2023-11-06 22:35:12,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (33 of 46 remaining) [2023-11-06 22:35:12,898 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (32 of 46 remaining) [2023-11-06 22:35:12,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (31 of 46 remaining) [2023-11-06 22:35:12,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (30 of 46 remaining) [2023-11-06 22:35:12,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (29 of 46 remaining) [2023-11-06 22:35:12,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (28 of 46 remaining) [2023-11-06 22:35:12,899 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (27 of 46 remaining) [2023-11-06 22:35:12,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (26 of 46 remaining) [2023-11-06 22:35:12,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (25 of 46 remaining) [2023-11-06 22:35:12,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (24 of 46 remaining) [2023-11-06 22:35:12,900 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 46 remaining) [2023-11-06 22:35:12,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 46 remaining) [2023-11-06 22:35:12,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (21 of 46 remaining) [2023-11-06 22:35:12,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 46 remaining) [2023-11-06 22:35:12,901 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 46 remaining) [2023-11-06 22:35:12,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (18 of 46 remaining) [2023-11-06 22:35:12,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (17 of 46 remaining) [2023-11-06 22:35:12,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (16 of 46 remaining) [2023-11-06 22:35:12,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err7ASSERT_VIOLATIONDATA_RACE (15 of 46 remaining) [2023-11-06 22:35:12,902 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (14 of 46 remaining) [2023-11-06 22:35:12,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (13 of 46 remaining) [2023-11-06 22:35:12,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err8ASSERT_VIOLATIONDATA_RACE (12 of 46 remaining) [2023-11-06 22:35:12,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (11 of 46 remaining) [2023-11-06 22:35:12,903 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err9ASSERT_VIOLATIONDATA_RACE (10 of 46 remaining) [2023-11-06 22:35:12,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (9 of 46 remaining) [2023-11-06 22:35:12,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (8 of 46 remaining) [2023-11-06 22:35:12,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (7 of 46 remaining) [2023-11-06 22:35:12,904 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (6 of 46 remaining) [2023-11-06 22:35:12,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (5 of 46 remaining) [2023-11-06 22:35:12,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (4 of 46 remaining) [2023-11-06 22:35:12,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 46 remaining) [2023-11-06 22:35:12,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (2 of 46 remaining) [2023-11-06 22:35:12,905 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 46 remaining) [2023-11-06 22:35:12,906 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (0 of 46 remaining) [2023-11-06 22:35:12,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:35:12,906 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:35:12,914 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:35:12,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:35:12,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:35:12 BasicIcfg [2023-11-06 22:35:12,970 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:35:12,970 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:35:12,971 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:35:12,971 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:35:12,971 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:35:03" (3/4) ... [2023-11-06 22:35:12,973 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:35:12,974 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:35:12,975 INFO L158 Benchmark]: Toolchain (without parser) took 10838.85ms. Allocated memory was 163.6MB in the beginning and 247.5MB in the end (delta: 83.9MB). Free memory was 130.0MB in the beginning and 104.1MB in the end (delta: 25.9MB). Peak memory consumption was 110.4MB. Max. memory is 16.1GB. [2023-11-06 22:35:12,975 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:35:12,976 INFO L158 Benchmark]: CACSL2BoogieTranslator took 723.46ms. Allocated memory is still 163.6MB. Free memory was 130.0MB in the beginning and 109.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:35:12,976 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.02ms. Allocated memory is still 163.6MB. Free memory was 109.9MB in the beginning and 107.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:35:12,976 INFO L158 Benchmark]: Boogie Preprocessor took 56.87ms. Allocated memory is still 163.6MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:35:12,977 INFO L158 Benchmark]: RCFGBuilder took 741.88ms. Allocated memory is still 163.6MB. Free memory was 105.7MB in the beginning and 86.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 22:35:12,977 INFO L158 Benchmark]: TraceAbstraction took 9214.26ms. Allocated memory was 163.6MB in the beginning and 247.5MB in the end (delta: 83.9MB). Free memory was 86.0MB in the beginning and 105.2MB in the end (delta: -19.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2023-11-06 22:35:12,977 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 247.5MB. Free memory was 105.2MB in the beginning and 104.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:35:12,979 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 115.3MB. Free memory is still 66.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 723.46ms. Allocated memory is still 163.6MB. Free memory was 130.0MB in the beginning and 109.9MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.02ms. Allocated memory is still 163.6MB. Free memory was 109.9MB in the beginning and 107.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.87ms. Allocated memory is still 163.6MB. Free memory was 107.7MB in the beginning and 105.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 741.88ms. Allocated memory is still 163.6MB. Free memory was 105.7MB in the beginning and 86.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9214.26ms. Allocated memory was 163.6MB in the beginning and 247.5MB in the end (delta: 83.9MB). Free memory was 86.0MB in the beginning and 105.2MB in the end (delta: -19.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 247.5MB. Free memory was 105.2MB in the beginning and 104.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5s, 188 PlacesBefore, 102 PlacesAfterwards, 197 TransitionsBefore, 109 TransitionsAfterwards, 13736 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 70 ConcurrentSequentialCompositions, 7 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 133 TotalNumberOfCompositions, 90077 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 30833, independent: 29412, independent conditional: 0, independent unconditional: 29412, dependent: 1421, dependent conditional: 0, dependent unconditional: 1421, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6832, independent: 6711, independent conditional: 0, independent unconditional: 6711, dependent: 121, dependent conditional: 0, dependent unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 30833, independent: 22701, independent conditional: 0, independent unconditional: 22701, dependent: 1300, dependent conditional: 0, dependent unconditional: 1300, unknown: 6832, unknown conditional: 0, unknown unconditional: 6832] , Statistics on independence cache: Total cache size (in pairs): 1564, Positive cache size: 1478, Positive conditional cache size: 0, Positive unconditional cache size: 1478, Negative cache size: 86, Negative conditional cache size: 0, Negative unconditional cache size: 86, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 707]: Data race detected Data race detected The following path leads to a data race: [L688] 0 int flag1 = 0, flag2 = 0; [L689] 0 int turn; [L690] 0 int x; [L722] 0 pthread_t t1, t2; [L723] EXPR 0 0<=turn [L723] EXPR 0 0<=turn && turn<=1 [L723] EXPR 0 turn<=1 [L723] EXPR 0 0<=turn && turn<=1 [L723] CALL 0 assume_abort_if_not(0<=turn && turn<=1) [L3] COND FALSE 0 !(!cond) [L723] RET 0 assume_abort_if_not(0<=turn && turn<=1) [L724] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-2, t1={3:0}, t2={5:0}, turn=0, x=0] [L692] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=-1, t1={3:0}, t2={5:0}, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2 = 1=50, flag2=1, turn=0, x=0] [L693] 1 flag2 >= 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] [L707] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2 = 1=50, flag2=1, turn=0, x=0] Now there is a data race on ~flag2~0 between C: flag2 >= 1 [693] and C: flag2 = 1 [707] - UnprovableResult [Line: 708]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 726]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 727]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 320 locations, 46 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: 8.9s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 543 IncrementalHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 9 mSDtfsCounter, 543 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=6, InterpolantAutomatonStates: 17, 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, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:35:13,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41b85e42-499c-4d5a-8e1f-967d01538924/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE