./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/fkp2013-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/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_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/fkp2013-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/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_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/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 e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:59,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:59,194 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 23:07:59,200 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:59,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:59,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:59,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:59,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:59,246 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:59,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:59,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:59,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:59,249 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:59,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:59,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:07:59,255 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:07:59,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:59,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:07:59,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:59,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:07:59,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:59,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:07:59,258 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 23:07:59,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:07:59,259 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:07:59,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:07:59,260 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:59,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:59,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:59,262 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:59,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:59,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:59,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:59,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:07:59,264 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:07:59,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:07:59,265 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:59,265 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:07:59,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:59,266 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:59,267 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:59,267 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_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e812004a84a4494a04d3a026bee09dbf1dbf7d202520f02258b12ac817a7a74e [2023-11-06 23:07:59,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:59,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:59,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:59,670 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:59,671 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:59,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-lit/fkp2013-2.i [2023-11-06 23:08:02,812 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:08:03,166 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:08:03,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/sv-benchmarks/c/pthread-lit/fkp2013-2.i [2023-11-06 23:08:03,192 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/data/f0fa7102f/426a7dc85f0f4aa98ed8e46181ffaf38/FLAG1602e49b7 [2023-11-06 23:08:03,214 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/data/f0fa7102f/426a7dc85f0f4aa98ed8e46181ffaf38 [2023-11-06 23:08:03,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:08:03,221 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:08:03,224 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:03,224 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:08:03,230 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:08:03,231 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72337cae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03, skipping insertion in model container [2023-11-06 23:08:03,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,296 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:08:03,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:03,735 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:08:03,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:08:03,831 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:08:03,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03 WrapperNode [2023-11-06 23:08:03,832 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:08:03,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:03,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:08:03,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:08:03,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,918 INFO L138 Inliner]: procedures = 172, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2023-11-06 23:08:03,919 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:08:03,920 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:08:03,920 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:08:03,920 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:08:03,929 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,942 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:08:03,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:08:03,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:08:03,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:08:03,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (1/1) ... [2023-11-06 23:08:03,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:08:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:08:03,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:08:03,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:08:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-06 23:08:04,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-06 23:08:04,022 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-06 23:08:04,023 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-06 23:08:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:08:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:08:04,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:08:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:08:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:08:04,024 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:08:04,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:08:04,026 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 23:08:04,167 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:08:04,170 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:04,372 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:04,392 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:04,392 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:08:04,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:04 BoogieIcfgContainer [2023-11-06 23:08:04,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:04,416 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:04,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:04,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:04,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:08:03" (1/3) ... [2023-11-06 23:08:04,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650a36fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:04, skipping insertion in model container [2023-11-06 23:08:04,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:08:03" (2/3) ... [2023-11-06 23:08:04,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650a36fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:04, skipping insertion in model container [2023-11-06 23:08:04,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:04" (3/3) ... [2023-11-06 23:08:04,424 INFO L112 eAbstractionObserver]: Analyzing ICFG fkp2013-2.i [2023-11-06 23:08:04,431 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 23:08:04,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:04,440 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-06 23:08:04,440 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:08:04,518 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:08:04,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 178 flow [2023-11-06 23:08:04,636 INFO L124 PetriNetUnfolderBase]: 4/99 cut-off events. [2023-11-06 23:08:04,637 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:04,646 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 99 events. 4/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 178 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2023-11-06 23:08:04,646 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 85 transitions, 178 flow [2023-11-06 23:08:04,654 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 84 transitions, 175 flow [2023-11-06 23:08:04,657 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:08:04,668 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 87 places, 84 transitions, 175 flow [2023-11-06 23:08:04,671 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 87 places, 84 transitions, 175 flow [2023-11-06 23:08:04,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 84 transitions, 175 flow [2023-11-06 23:08:04,725 INFO L124 PetriNetUnfolderBase]: 4/99 cut-off events. [2023-11-06 23:08:04,729 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:04,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 99 events. 4/99 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 177 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2023-11-06 23:08:04,736 INFO L119 LiptonReduction]: Number of co-enabled transitions 2148 [2023-11-06 23:08:07,178 INFO L134 LiptonReduction]: Checked pairs total: 4097 [2023-11-06 23:08:07,179 INFO L136 LiptonReduction]: Total number of compositions: 79 [2023-11-06 23:08:07,208 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:07,218 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;@424928cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:07,218 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-11-06 23:08:07,219 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:08:07,220 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:08:07,220 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:07,220 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:07,221 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:08:07,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-06 23:08:07,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:07,227 INFO L85 PathProgramCache]: Analyzing trace with hash 329, now seen corresponding path program 1 times [2023-11-06 23:08:07,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:07,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809709851] [2023-11-06 23:08:07,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:07,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:07,356 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 23:08:07,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:07,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809709851] [2023-11-06 23:08:07,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809709851] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:07,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:07,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:08:07,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478715076] [2023-11-06 23:08:07,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:07,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:08:07,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:07,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:08:07,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:08:07,407 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 164 [2023-11-06 23:08:07,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 49 flow. Second operand has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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 23:08:07,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:07,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 164 [2023-11-06 23:08:07,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:07,478 INFO L124 PetriNetUnfolderBase]: 82/198 cut-off events. [2023-11-06 23:08:07,478 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:07,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 365 conditions, 198 events. 82/198 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 854 event pairs, 82 based on Foata normal form. 0/176 useless extension candidates. Maximal degree in co-relation 355. Up to 156 conditions per place. [2023-11-06 23:08:07,482 INFO L140 encePairwiseOnDemand]: 162/164 looper letters, 13 selfloop transitions, 0 changer transitions 0/19 dead transitions. [2023-11-06 23:08:07,483 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 19 transitions, 71 flow [2023-11-06 23:08:07,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:08:07,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:08:07,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 173 transitions. [2023-11-06 23:08:07,497 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5274390243902439 [2023-11-06 23:08:07,498 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 173 transitions. [2023-11-06 23:08:07,499 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 173 transitions. [2023-11-06 23:08:07,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:07,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 173 transitions. [2023-11-06 23:08:07,506 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 86.5) internal successors, (173), 2 states have internal predecessors, (173), 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 23:08:07,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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 23:08:07,512 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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 23:08:07,514 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 49 flow. Second operand 2 states and 173 transitions. [2023-11-06 23:08:07,515 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 19 transitions, 71 flow [2023-11-06 23:08:07,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 19 transitions, 70 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:08:07,519 INFO L231 Difference]: Finished difference. Result has 25 places, 19 transitions, 44 flow [2023-11-06 23:08:07,521 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=44, PETRI_PLACES=25, PETRI_TRANSITIONS=19} [2023-11-06 23:08:07,524 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, -1 predicate places. [2023-11-06 23:08:07,525 INFO L495 AbstractCegarLoop]: Abstraction has has 25 places, 19 transitions, 44 flow [2023-11-06 23:08:07,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 79.5) internal successors, (159), 2 states have internal predecessors, (159), 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 23:08:07,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:07,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 23:08:07,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:08:07,526 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-06 23:08:07,527 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash 10053906, now seen corresponding path program 1 times [2023-11-06 23:08:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316755492] [2023-11-06 23:08:07,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:07,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:07,672 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 23:08:07,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:07,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316755492] [2023-11-06 23:08:07,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316755492] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:07,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:07,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:08:07,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538630020] [2023-11-06 23:08:07,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:07,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:07,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:07,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:07,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:07,695 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 164 [2023-11-06 23:08:07,696 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 19 transitions, 44 flow. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 23:08:07,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:07,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 164 [2023-11-06 23:08:07,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:07,775 INFO L124 PetriNetUnfolderBase]: 173/329 cut-off events. [2023-11-06 23:08:07,775 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-06 23:08:07,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 661 conditions, 329 events. 173/329 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1310 event pairs, 58 based on Foata normal form. 0/285 useless extension candidates. Maximal degree in co-relation 657. Up to 227 conditions per place. [2023-11-06 23:08:07,779 INFO L140 encePairwiseOnDemand]: 158/164 looper letters, 22 selfloop transitions, 4 changer transitions 0/28 dead transitions. [2023-11-06 23:08:07,779 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 28 transitions, 117 flow [2023-11-06 23:08:07,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:07,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:08:07,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 241 transitions. [2023-11-06 23:08:07,783 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4898373983739837 [2023-11-06 23:08:07,783 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 241 transitions. [2023-11-06 23:08:07,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 241 transitions. [2023-11-06 23:08:07,784 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:07,784 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 241 transitions. [2023-11-06 23:08:07,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 23:08:07,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 23:08:07,789 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 164.0) internal successors, (656), 4 states have internal predecessors, (656), 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 23:08:07,789 INFO L175 Difference]: Start difference. First operand has 25 places, 19 transitions, 44 flow. Second operand 3 states and 241 transitions. [2023-11-06 23:08:07,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 28 transitions, 117 flow [2023-11-06 23:08:07,790 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 28 transitions, 117 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:08:07,791 INFO L231 Difference]: Finished difference. Result has 28 places, 21 transitions, 72 flow [2023-11-06 23:08:07,791 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=164, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=28, PETRI_TRANSITIONS=21} [2023-11-06 23:08:07,792 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 2 predicate places. [2023-11-06 23:08:07,792 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 21 transitions, 72 flow [2023-11-06 23:08:07,793 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 23:08:07,793 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:07,793 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:07,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:08:07,794 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-11-06 23:08:07,794 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:07,795 INFO L85 PathProgramCache]: Analyzing trace with hash 330969025, now seen corresponding path program 1 times [2023-11-06 23:08:07,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:07,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662767759] [2023-11-06 23:08:07,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:07,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:07,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:07,828 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:08:07,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:07,887 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:08:07,887 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:08:07,888 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 9 remaining) [2023-11-06 23:08:07,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2023-11-06 23:08:07,890 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2023-11-06 23:08:07,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2023-11-06 23:08:07,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (4 of 9 remaining) [2023-11-06 23:08:07,891 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 9 remaining) [2023-11-06 23:08:07,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2023-11-06 23:08:07,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2023-11-06 23:08:07,892 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2023-11-06 23:08:07,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 23:08:07,893 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-06 23:08:07,896 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-06 23:08:07,896 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-06 23:08:07,936 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:08:07,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 126 places, 121 transitions, 262 flow [2023-11-06 23:08:07,963 INFO L124 PetriNetUnfolderBase]: 5/134 cut-off events. [2023-11-06 23:08:07,963 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:08:07,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 134 events. 5/134 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 141. Up to 6 conditions per place. [2023-11-06 23:08:07,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 121 transitions, 262 flow [2023-11-06 23:08:07,967 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 99 transitions, 211 flow [2023-11-06 23:08:07,967 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:08:07,968 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 104 places, 99 transitions, 211 flow [2023-11-06 23:08:07,968 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 104 places, 99 transitions, 211 flow [2023-11-06 23:08:07,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 99 transitions, 211 flow [2023-11-06 23:08:07,987 INFO L124 PetriNetUnfolderBase]: 5/134 cut-off events. [2023-11-06 23:08:07,988 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 23:08:07,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 134 events. 5/134 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 257 event pairs, 0 based on Foata normal form. 0/120 useless extension candidates. Maximal degree in co-relation 114. Up to 6 conditions per place. [2023-11-06 23:08:07,994 INFO L119 LiptonReduction]: Number of co-enabled transitions 3756 [2023-11-06 23:08:10,282 INFO L134 LiptonReduction]: Checked pairs total: 10020 [2023-11-06 23:08:10,282 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-11-06 23:08:10,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:10,288 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;@424928cf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:10,289 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-11-06 23:08:10,290 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 23:08:10,290 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 23:08:10,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:08:10,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:10,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 23:08:10,291 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-06 23:08:10,291 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:10,291 INFO L85 PathProgramCache]: Analyzing trace with hash 568, now seen corresponding path program 1 times [2023-11-06 23:08:10,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:10,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429374764] [2023-11-06 23:08:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:10,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:10,304 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 23:08:10,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:10,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429374764] [2023-11-06 23:08:10,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429374764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:10,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:10,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 23:08:10,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474381968] [2023-11-06 23:08:10,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:10,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 23:08:10,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:10,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 23:08:10,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 23:08:10,308 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 201 [2023-11-06 23:08:10,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 77 flow. Second operand has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 23:08:10,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:10,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 201 [2023-11-06 23:08:10,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:10,423 INFO L124 PetriNetUnfolderBase]: 445/963 cut-off events. [2023-11-06 23:08:10,423 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-06 23:08:10,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1710 conditions, 963 events. 445/963 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 5865 event pairs, 445 based on Foata normal form. 0/827 useless extension candidates. Maximal degree in co-relation 1699. Up to 699 conditions per place. [2023-11-06 23:08:10,432 INFO L140 encePairwiseOnDemand]: 199/201 looper letters, 16 selfloop transitions, 0 changer transitions 0/30 dead transitions. [2023-11-06 23:08:10,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 30 transitions, 105 flow [2023-11-06 23:08:10,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 23:08:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 23:08:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 238 transitions. [2023-11-06 23:08:10,435 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5920398009950248 [2023-11-06 23:08:10,435 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 238 transitions. [2023-11-06 23:08:10,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 238 transitions. [2023-11-06 23:08:10,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:10,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 238 transitions. [2023-11-06 23:08:10,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 119.0) internal successors, (238), 2 states have internal predecessors, (238), 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 23:08:10,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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 23:08:10,440 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 201.0) internal successors, (603), 3 states have internal predecessors, (603), 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 23:08:10,440 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 77 flow. Second operand 2 states and 238 transitions. [2023-11-06 23:08:10,440 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 30 transitions, 105 flow [2023-11-06 23:08:10,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 104 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 23:08:10,442 INFO L231 Difference]: Finished difference. Result has 38 places, 30 transitions, 72 flow [2023-11-06 23:08:10,442 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=72, PETRI_PLACES=38, PETRI_TRANSITIONS=30} [2023-11-06 23:08:10,443 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-11-06 23:08:10,443 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 30 transitions, 72 flow [2023-11-06 23:08:10,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 110.5) internal successors, (221), 2 states have internal predecessors, (221), 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 23:08:10,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:10,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 23:08:10,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 23:08:10,445 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-06 23:08:10,445 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:10,445 INFO L85 PathProgramCache]: Analyzing trace with hash 17436801, now seen corresponding path program 1 times [2023-11-06 23:08:10,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:10,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37228638] [2023-11-06 23:08:10,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:10,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:10,487 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 23:08:10,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:10,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37228638] [2023-11-06 23:08:10,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37228638] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:10,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:10,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:08:10,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300850073] [2023-11-06 23:08:10,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:10,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:10,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:10,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:10,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:10,519 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 201 [2023-11-06 23:08:10,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 30 transitions, 72 flow. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 23:08:10,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:10,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 201 [2023-11-06 23:08:10,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:10,907 INFO L124 PetriNetUnfolderBase]: 1817/3213 cut-off events. [2023-11-06 23:08:10,908 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2023-11-06 23:08:10,923 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6106 conditions, 3213 events. 1817/3213 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 236. Compared 21030 event pairs, 744 based on Foata normal form. 0/2785 useless extension candidates. Maximal degree in co-relation 6101. Up to 1653 conditions per place. [2023-11-06 23:08:10,946 INFO L140 encePairwiseOnDemand]: 190/201 looper letters, 31 selfloop transitions, 8 changer transitions 0/47 dead transitions. [2023-11-06 23:08:10,946 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 47 transitions, 192 flow [2023-11-06 23:08:10,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:10,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:08:10,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 327 transitions. [2023-11-06 23:08:10,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5422885572139303 [2023-11-06 23:08:10,949 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 327 transitions. [2023-11-06 23:08:10,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 327 transitions. [2023-11-06 23:08:10,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:10,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 327 transitions. [2023-11-06 23:08:10,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 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 23:08:10,954 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 23:08:10,955 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 23:08:10,955 INFO L175 Difference]: Start difference. First operand has 38 places, 30 transitions, 72 flow. Second operand 3 states and 327 transitions. [2023-11-06 23:08:10,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 47 transitions, 192 flow [2023-11-06 23:08:10,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 47 transitions, 192 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 23:08:10,960 INFO L231 Difference]: Finished difference. Result has 42 places, 38 transitions, 142 flow [2023-11-06 23:08:10,961 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=142, PETRI_PLACES=42, PETRI_TRANSITIONS=38} [2023-11-06 23:08:10,963 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 3 predicate places. [2023-11-06 23:08:10,963 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 38 transitions, 142 flow [2023-11-06 23:08:10,964 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 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 23:08:10,964 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:10,964 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:10,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 23:08:10,965 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-06 23:08:10,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash 122569354, now seen corresponding path program 1 times [2023-11-06 23:08:10,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:10,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364773488] [2023-11-06 23:08:10,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:10,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:08:11,029 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 23:08:11,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:08:11,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364773488] [2023-11-06 23:08:11,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364773488] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:08:11,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:08:11,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 23:08:11,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225201501] [2023-11-06 23:08:11,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:08:11,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 23:08:11,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:08:11,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 23:08:11,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 23:08:11,066 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 201 [2023-11-06 23:08:11,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 38 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 23:08:11,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 23:08:11,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 201 [2023-11-06 23:08:11,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 23:08:11,443 INFO L124 PetriNetUnfolderBase]: 1592/3049 cut-off events. [2023-11-06 23:08:11,444 INFO L125 PetriNetUnfolderBase]: For 1588/1620 co-relation queries the response was YES. [2023-11-06 23:08:11,457 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7217 conditions, 3049 events. 1592/3049 cut-off events. For 1588/1620 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 21753 event pairs, 908 based on Foata normal form. 0/2590 useless extension candidates. Maximal degree in co-relation 7210. Up to 1908 conditions per place. [2023-11-06 23:08:11,482 INFO L140 encePairwiseOnDemand]: 195/201 looper letters, 26 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2023-11-06 23:08:11,482 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 51 transitions, 261 flow [2023-11-06 23:08:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 23:08:11,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 23:08:11,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 325 transitions. [2023-11-06 23:08:11,485 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.538971807628524 [2023-11-06 23:08:11,485 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 325 transitions. [2023-11-06 23:08:11,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 325 transitions. [2023-11-06 23:08:11,485 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 23:08:11,485 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 325 transitions. [2023-11-06 23:08:11,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 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 23:08:11,490 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 23:08:11,490 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 201.0) internal successors, (804), 4 states have internal predecessors, (804), 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 23:08:11,491 INFO L175 Difference]: Start difference. First operand has 42 places, 38 transitions, 142 flow. Second operand 3 states and 325 transitions. [2023-11-06 23:08:11,491 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 51 transitions, 261 flow [2023-11-06 23:08:11,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 51 transitions, 239 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-06 23:08:11,506 INFO L231 Difference]: Finished difference. Result has 43 places, 45 transitions, 195 flow [2023-11-06 23:08:11,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=201, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=195, PETRI_PLACES=43, PETRI_TRANSITIONS=45} [2023-11-06 23:08:11,510 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-11-06 23:08:11,511 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 45 transitions, 195 flow [2023-11-06 23:08:11,511 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 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 23:08:11,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 23:08:11,512 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:11,512 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 23:08:11,512 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2023-11-06 23:08:11,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:11,512 INFO L85 PathProgramCache]: Analyzing trace with hash -195886940, now seen corresponding path program 1 times [2023-11-06 23:08:11,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:11,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438734803] [2023-11-06 23:08:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:11,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:08:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:11,563 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 23:08:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 23:08:11,581 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 23:08:11,582 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 23:08:11,582 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-11-06 23:08:11,582 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-11-06 23:08:11,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-11-06 23:08:11,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-11-06 23:08:11,583 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-11-06 23:08:11,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 12 remaining) [2023-11-06 23:08:11,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2023-11-06 23:08:11,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-11-06 23:08:11,584 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-11-06 23:08:11,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-11-06 23:08:11,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2023-11-06 23:08:11,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-11-06 23:08:11,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 23:08:11,586 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-06 23:08:11,591 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-11-06 23:08:11,592 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 23:08:11,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 11:08:11 BasicIcfg [2023-11-06 23:08:11,639 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 23:08:11,640 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 23:08:11,640 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 23:08:11,640 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 23:08:11,641 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:04" (3/4) ... [2023-11-06 23:08:11,643 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 23:08:11,644 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 23:08:11,644 INFO L158 Benchmark]: Toolchain (without parser) took 8423.22ms. Allocated memory was 153.1MB in the beginning and 234.9MB in the end (delta: 81.8MB). Free memory was 105.1MB in the beginning and 193.9MB in the end (delta: -88.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:11,645 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 153.1MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:11,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.55ms. Allocated memory is still 153.1MB. Free memory was 104.6MB in the beginning and 85.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-06 23:08:11,646 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.25ms. Allocated memory is still 153.1MB. Free memory was 85.2MB in the beginning and 83.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 23:08:11,646 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 153.1MB. Free memory was 83.6MB in the beginning and 82.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:11,647 INFO L158 Benchmark]: RCFGBuilder took 458.28ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 82.2MB in the beginning and 165.0MB in the end (delta: -82.9MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-06 23:08:11,648 INFO L158 Benchmark]: TraceAbstraction took 7223.37ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 165.0MB in the beginning and 193.9MB in the end (delta: -28.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-06 23:08:11,648 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 234.9MB. Free memory is still 193.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 23:08:11,651 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 153.1MB. Free memory is still 125.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.55ms. Allocated memory is still 153.1MB. Free memory was 104.6MB in the beginning and 85.2MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.25ms. Allocated memory is still 153.1MB. Free memory was 85.2MB in the beginning and 83.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 153.1MB. Free memory was 83.6MB in the beginning and 82.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.28ms. Allocated memory was 153.1MB in the beginning and 195.0MB in the end (delta: 41.9MB). Free memory was 82.2MB in the beginning and 165.0MB in the end (delta: -82.9MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7223.37ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 165.0MB in the beginning and 193.9MB in the end (delta: -28.9MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 234.9MB. Free memory is still 193.9MB. 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: 2.5s, 87 PlacesBefore, 26 PlacesAfterwards, 84 TransitionsBefore, 21 TransitionsAfterwards, 2148 CoEnabledTransitionPairs, 7 FixpointIterations, 24 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 79 TotalNumberOfCompositions, 4097 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2762, independent: 2618, independent conditional: 0, independent unconditional: 2618, dependent: 144, dependent conditional: 0, dependent unconditional: 144, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1212, independent: 1180, independent conditional: 0, independent unconditional: 1180, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2762, independent: 1438, independent conditional: 0, independent unconditional: 1438, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 1212, unknown conditional: 0, unknown unconditional: 1212] , Statistics on independence cache: Total cache size (in pairs): 63, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.3s, 104 PlacesBefore, 39 PlacesAfterwards, 99 TransitionsBefore, 32 TransitionsAfterwards, 3756 CoEnabledTransitionPairs, 7 FixpointIterations, 26 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 10020 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5019, independent: 4755, independent conditional: 0, independent unconditional: 4755, dependent: 264, dependent conditional: 0, dependent unconditional: 264, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 2026, independent: 1973, independent conditional: 0, independent unconditional: 1973, dependent: 53, dependent conditional: 0, dependent unconditional: 53, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 5019, independent: 2782, independent conditional: 0, independent unconditional: 2782, dependent: 211, dependent conditional: 0, dependent unconditional: 211, unknown: 2026, unknown conditional: 0, unknown unconditional: 2026] , Statistics on independence cache: Total cache size (in pairs): 167, Positive cache size: 140, Positive conditional cache size: 0, Positive unconditional cache size: 140, Negative cache size: 27, Negative conditional cache size: 0, Negative unconditional cache size: 27, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 699]: Data race detected Data race detected The following path leads to a data race: [L697] 0 volatile int x; [L709] 0 pthread_t t1, t2; [L710] 0 int i; [L711] 0 x = 0 [L712] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, argc=52, argv={49:50}, argv={49:50}, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, x=0] [L713] 0 i = 0 VAL [\old(argc)=52, argc=52, argv={49:50}, argv={49:50}, i=0, t1={5:0}, t2={3:0}, x=0] [L699] 1 x <= 50 VAL [arg={0:0}, arg={0:0}, x=0] [L713] COND TRUE 0 i < 50 [L714] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=52, arg={0:0}, argc=52, argv={49:50}, argv={49:50}, i=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, x=0] [L703] 2 int t; [L704] 2 t = x VAL [arg={0:0}, arg={0:0}, t=0, x=0] [L705] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, t=0, x = t + 1=51, x=1] [L699] 1 x <= 50 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, t=0, x = t + 1=51, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [705] and C: x <= 50 [699] - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: 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: 714]: 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: 712]: 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, 118 locations, 9 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: 3.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 3 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=2, InterpolantAutomatonStates: 5, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 7 procedures, 152 locations, 12 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: 3.6s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 99 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 1 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 23:08:11,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_897c6d3f-4ec2-41c4-b390-6ce6d7fc11e1/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE