./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c --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_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/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_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/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_27e5d530-7943-4e37-8d10-6207779d7395/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 c902137dd689344b33e1214981c74c26e47854ade5db7e5e71980f90fd07d90c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:04:22,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:04:22,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:04:22,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:04:22,377 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:04:22,404 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:04:22,405 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:04:22,406 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:04:22,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:04:22,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:04:22,408 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:04:22,409 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:04:22,409 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:04:22,410 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:04:22,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:04:22,411 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:04:22,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:04:22,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:04:22,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:04:22,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:04:22,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:04:22,415 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:04:22,416 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:04:22,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:04:22,417 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:04:22,418 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:04:22,418 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:04:22,419 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:04:22,419 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:04:22,420 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:04:22,421 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:04:22,421 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:04:22,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:04:22,422 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:04:22,423 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:04:22,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:04:22,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:04:22,424 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:04:22,425 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:04:22,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:04:22,425 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:04:22,426 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_27e5d530-7943-4e37-8d10-6207779d7395/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c902137dd689344b33e1214981c74c26e47854ade5db7e5e71980f90fd07d90c [2023-11-06 22:04:22,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:04:22,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:04:22,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:04:22,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:04:22,800 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:04:22,802 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c [2023-11-06 22:04:25,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:04:26,094 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:04:26,095 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/sv-benchmarks/c/weaver/popl20-channel-sum.wvr.c [2023-11-06 22:04:26,104 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/data/649904e90/bb03f347050740b19d45473a697920aa/FLAG1d8c42563 [2023-11-06 22:04:26,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/data/649904e90/bb03f347050740b19d45473a697920aa [2023-11-06 22:04:26,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:04:26,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:04:26,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:04:26,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:04:26,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:04:26,150 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,151 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109bcf88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26, skipping insertion in model container [2023-11-06 22:04:26,151 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,178 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:04:26,355 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:04:26,365 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:04:26,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:04:26,413 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:04:26,413 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:04:26,421 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:04:26,422 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26 WrapperNode [2023-11-06 22:04:26,422 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:04:26,423 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:04:26,423 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:04:26,423 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:04:26,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,443 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,484 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 287 [2023-11-06 22:04:26,485 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:04:26,486 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:04:26,486 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:04:26,486 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:04:26,497 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,497 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,503 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,504 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,525 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,535 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:04:26,536 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:04:26,536 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:04:26,536 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:04:26,537 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (1/1) ... [2023-11-06 22:04:26,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:04:26,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:04:26,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:04:26,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:04:26,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:04:26,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:04:26,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:04:26,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:04:26,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:04:26,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:04:26,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:04:26,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:04:26,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:04:26,652 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:04:26,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:04:26,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:04:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:04:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:04:26,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:04:26,657 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:04:26,812 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:04:26,814 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:04:27,344 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:04:27,546 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:04:27,546 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-06 22:04:27,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:27 BoogieIcfgContainer [2023-11-06 22:04:27,552 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:04:27,554 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:04:27,555 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:04:27,558 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:04:27,559 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:04:26" (1/3) ... [2023-11-06 22:04:27,560 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b98c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:04:27, skipping insertion in model container [2023-11-06 22:04:27,561 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:04:26" (2/3) ... [2023-11-06 22:04:27,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b98c17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:04:27, skipping insertion in model container [2023-11-06 22:04:27,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:27" (3/3) ... [2023-11-06 22:04:27,565 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-channel-sum.wvr.c [2023-11-06 22:04:27,575 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:04:27,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:04:27,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2023-11-06 22:04:27,588 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:04:27,776 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:04:27,842 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 263 places, 269 transitions, 552 flow [2023-11-06 22:04:28,041 INFO L124 PetriNetUnfolderBase]: 13/267 cut-off events. [2023-11-06 22:04:28,041 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:04:28,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 276 conditions, 267 events. 13/267 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 437 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 187. Up to 2 conditions per place. [2023-11-06 22:04:28,051 INFO L82 GeneralOperation]: Start removeDead. Operand has 263 places, 269 transitions, 552 flow [2023-11-06 22:04:28,064 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 239 places, 243 transitions, 498 flow [2023-11-06 22:04:28,069 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:04:28,080 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 239 places, 243 transitions, 498 flow [2023-11-06 22:04:28,084 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 239 places, 243 transitions, 498 flow [2023-11-06 22:04:28,086 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 239 places, 243 transitions, 498 flow [2023-11-06 22:04:28,190 INFO L124 PetriNetUnfolderBase]: 11/243 cut-off events. [2023-11-06 22:04:28,190 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:04:28,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 252 conditions, 243 events. 11/243 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 385 event pairs, 0 based on Foata normal form. 0/193 useless extension candidates. Maximal degree in co-relation 187. Up to 2 conditions per place. [2023-11-06 22:04:28,204 INFO L119 LiptonReduction]: Number of co-enabled transitions 7920 [2023-11-06 22:04:35,926 INFO L134 LiptonReduction]: Checked pairs total: 33608 [2023-11-06 22:04:35,926 INFO L136 LiptonReduction]: Total number of compositions: 259 [2023-11-06 22:04:35,944 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:04:35,951 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;@330b1079, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:04:35,952 INFO L358 AbstractCegarLoop]: Starting to check reachability of 71 error locations. [2023-11-06 22:04:35,954 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:04:35,954 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:04:35,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:04:35,954 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:35,955 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:04:35,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-06 22:04:35,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:35,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1173, now seen corresponding path program 1 times [2023-11-06 22:04:35,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:35,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207493952] [2023-11-06 22:04:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:36,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:36,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:36,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207493952] [2023-11-06 22:04:36,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207493952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:36,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:36,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:04:36,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469054028] [2023-11-06 22:04:36,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:36,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:04:36,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:36,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:04:36,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:04:36,107 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 528 [2023-11-06 22:04:36,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 79 transitions, 170 flow. Second operand has 2 states, 2 states have (on average 233.5) internal successors, (467), 2 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,111 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:36,111 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 528 [2023-11-06 22:04:36,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:36,259 INFO L124 PetriNetUnfolderBase]: 227/541 cut-off events. [2023-11-06 22:04:36,260 INFO L125 PetriNetUnfolderBase]: For 29/29 co-relation queries the response was YES. [2023-11-06 22:04:36,261 INFO L83 FinitePrefix]: Finished finitePrefix Result has 938 conditions, 541 events. 227/541 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2810 event pairs, 154 based on Foata normal form. 15/459 useless extension candidates. Maximal degree in co-relation 829. Up to 367 conditions per place. [2023-11-06 22:04:36,266 INFO L140 encePairwiseOnDemand]: 492/528 looper letters, 24 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-11-06 22:04:36,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 148 flow [2023-11-06 22:04:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:04:36,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:04:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 527 transitions. [2023-11-06 22:04:36,284 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4990530303030303 [2023-11-06 22:04:36,285 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 527 transitions. [2023-11-06 22:04:36,285 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 527 transitions. [2023-11-06 22:04:36,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:36,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 527 transitions. [2023-11-06 22:04:36,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 263.5) internal successors, (527), 2 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 528.0) internal successors, (1584), 3 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,302 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 528.0) internal successors, (1584), 3 states have internal predecessors, (1584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,304 INFO L175 Difference]: Start difference. First operand has 81 places, 79 transitions, 170 flow. Second operand 2 states and 527 transitions. [2023-11-06 22:04:36,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 148 flow [2023-11-06 22:04:36,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:04:36,311 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 87 flow [2023-11-06 22:04:36,313 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-11-06 22:04:36,317 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -38 predicate places. [2023-11-06 22:04:36,317 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 87 flow [2023-11-06 22:04:36,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 233.5) internal successors, (467), 2 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:36,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:04:36,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:04:36,319 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-06 22:04:36,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:36,320 INFO L85 PathProgramCache]: Analyzing trace with hash 816066324, now seen corresponding path program 1 times [2023-11-06 22:04:36,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:36,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896491733] [2023-11-06 22:04:36,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:36,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:36,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:36,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:36,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896491733] [2023-11-06 22:04:36,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896491733] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:36,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:36,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:04:36,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740817671] [2023-11-06 22:04:36,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:36,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:04:36,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:36,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:04:36,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:04:36,458 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 528 [2023-11-06 22:04:36,460 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,460 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:36,460 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 528 [2023-11-06 22:04:36,460 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:36,594 INFO L124 PetriNetUnfolderBase]: 227/535 cut-off events. [2023-11-06 22:04:36,595 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:04:36,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 913 conditions, 535 events. 227/535 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 2748 event pairs, 154 based on Foata normal form. 0/438 useless extension candidates. Maximal degree in co-relation 910. Up to 365 conditions per place. [2023-11-06 22:04:36,600 INFO L140 encePairwiseOnDemand]: 526/528 looper letters, 23 selfloop transitions, 1 changer transitions 0/41 dead transitions. [2023-11-06 22:04:36,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 41 transitions, 133 flow [2023-11-06 22:04:36,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:04:36,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:04:36,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2023-11-06 22:04:36,604 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4438131313131313 [2023-11-06 22:04:36,604 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 703 transitions. [2023-11-06 22:04:36,604 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 703 transitions. [2023-11-06 22:04:36,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:36,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 703 transitions. [2023-11-06 22:04:36,608 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 234.33333333333334) internal successors, (703), 3 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,615 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,615 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 87 flow. Second operand 3 states and 703 transitions. [2023-11-06 22:04:36,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 41 transitions, 133 flow [2023-11-06 22:04:36,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 41 transitions, 133 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:04:36,617 INFO L231 Difference]: Finished difference. Result has 43 places, 41 transitions, 87 flow [2023-11-06 22:04:36,617 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=41} [2023-11-06 22:04:36,618 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -38 predicate places. [2023-11-06 22:04:36,619 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 41 transitions, 87 flow [2023-11-06 22:04:36,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:36,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:36,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:04:36,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-06 22:04:36,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:36,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1738982452, now seen corresponding path program 1 times [2023-11-06 22:04:36,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:36,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119559671] [2023-11-06 22:04:36,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:36,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:36,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:36,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:36,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119559671] [2023-11-06 22:04:36,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119559671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:36,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:36,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:04:36,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671528322] [2023-11-06 22:04:36,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:36,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:04:36,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:36,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:04:36,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:04:36,709 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 229 out of 528 [2023-11-06 22:04:36,710 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 41 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:36,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 229 of 528 [2023-11-06 22:04:36,711 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:36,861 INFO L124 PetriNetUnfolderBase]: 300/604 cut-off events. [2023-11-06 22:04:36,861 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-06 22:04:36,863 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1105 conditions, 604 events. 300/604 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2852 event pairs, 60 based on Foata normal form. 0/469 useless extension candidates. Maximal degree in co-relation 1101. Up to 391 conditions per place. [2023-11-06 22:04:36,867 INFO L140 encePairwiseOnDemand]: 524/528 looper letters, 35 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2023-11-06 22:04:36,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 44 places, 54 transitions, 191 flow [2023-11-06 22:04:36,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:04:36,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:04:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 726 transitions. [2023-11-06 22:04:36,872 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2023-11-06 22:04:36,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 726 transitions. [2023-11-06 22:04:36,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 726 transitions. [2023-11-06 22:04:36,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:36,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 726 transitions. [2023-11-06 22:04:36,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 242.0) internal successors, (726), 3 states have internal predecessors, (726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,884 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 528.0) internal successors, (2112), 4 states have internal predecessors, (2112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,884 INFO L175 Difference]: Start difference. First operand has 43 places, 41 transitions, 87 flow. Second operand 3 states and 726 transitions. [2023-11-06 22:04:36,884 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 44 places, 54 transitions, 191 flow [2023-11-06 22:04:36,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 54 transitions, 190 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-06 22:04:36,887 INFO L231 Difference]: Finished difference. Result has 44 places, 43 transitions, 105 flow [2023-11-06 22:04:36,887 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=105, PETRI_PLACES=44, PETRI_TRANSITIONS=43} [2023-11-06 22:04:36,889 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -37 predicate places. [2023-11-06 22:04:36,889 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 43 transitions, 105 flow [2023-11-06 22:04:36,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 231.66666666666666) internal successors, (695), 3 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:36,890 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:36,891 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:36,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:04:36,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-06 22:04:36,892 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:36,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1430239960, now seen corresponding path program 1 times [2023-11-06 22:04:36,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:36,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737073751] [2023-11-06 22:04:36,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:36,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:37,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:37,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737073751] [2023-11-06 22:04:37,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737073751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:37,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:37,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:37,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373905126] [2023-11-06 22:04:37,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:37,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:37,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:37,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:37,733 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 528 [2023-11-06 22:04:37,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 43 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:37,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:37,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 528 [2023-11-06 22:04:37,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:38,146 INFO L124 PetriNetUnfolderBase]: 932/1458 cut-off events. [2023-11-06 22:04:38,147 INFO L125 PetriNetUnfolderBase]: For 128/128 co-relation queries the response was YES. [2023-11-06 22:04:38,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3181 conditions, 1458 events. 932/1458 cut-off events. For 128/128 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6713 event pairs, 69 based on Foata normal form. 0/1151 useless extension candidates. Maximal degree in co-relation 3177. Up to 494 conditions per place. [2023-11-06 22:04:38,160 INFO L140 encePairwiseOnDemand]: 523/528 looper letters, 99 selfloop transitions, 4 changer transitions 0/114 dead transitions. [2023-11-06 22:04:38,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 114 transitions, 513 flow [2023-11-06 22:04:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:38,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1403 transitions. [2023-11-06 22:04:38,166 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4428661616161616 [2023-11-06 22:04:38,166 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1403 transitions. [2023-11-06 22:04:38,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1403 transitions. [2023-11-06 22:04:38,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:38,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1403 transitions. [2023-11-06 22:04:38,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:38,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:38,183 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:38,183 INFO L175 Difference]: Start difference. First operand has 44 places, 43 transitions, 105 flow. Second operand 6 states and 1403 transitions. [2023-11-06 22:04:38,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 114 transitions, 513 flow [2023-11-06 22:04:38,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 114 transitions, 513 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:04:38,187 INFO L231 Difference]: Finished difference. Result has 48 places, 42 transitions, 111 flow [2023-11-06 22:04:38,188 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=111, PETRI_PLACES=48, PETRI_TRANSITIONS=42} [2023-11-06 22:04:38,189 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -33 predicate places. [2023-11-06 22:04:38,189 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 42 transitions, 111 flow [2023-11-06 22:04:38,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.66666666666666) internal successors, (1324), 6 states have internal predecessors, (1324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:38,190 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:38,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:38,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:04:38,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-06 22:04:38,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:38,192 INFO L85 PathProgramCache]: Analyzing trace with hash -245749660, now seen corresponding path program 1 times [2023-11-06 22:04:38,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:38,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951903525] [2023-11-06 22:04:38,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:38,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:38,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:38,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:38,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951903525] [2023-11-06 22:04:38,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951903525] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:38,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:38,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:38,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445347347] [2023-11-06 22:04:38,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:38,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:38,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:38,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:38,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:38,750 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 528 [2023-11-06 22:04:38,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 42 transitions, 111 flow. Second operand has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:38,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:38,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 528 [2023-11-06 22:04:38,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:39,109 INFO L124 PetriNetUnfolderBase]: 396/729 cut-off events. [2023-11-06 22:04:39,109 INFO L125 PetriNetUnfolderBase]: For 129/129 co-relation queries the response was YES. [2023-11-06 22:04:39,111 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1649 conditions, 729 events. 396/729 cut-off events. For 129/129 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3209 event pairs, 195 based on Foata normal form. 0/582 useless extension candidates. Maximal degree in co-relation 1644. Up to 483 conditions per place. [2023-11-06 22:04:39,115 INFO L140 encePairwiseOnDemand]: 522/528 looper letters, 62 selfloop transitions, 5 changer transitions 0/77 dead transitions. [2023-11-06 22:04:39,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 77 transitions, 343 flow [2023-11-06 22:04:39,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:39,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:39,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1373 transitions. [2023-11-06 22:04:39,121 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43339646464646464 [2023-11-06 22:04:39,122 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1373 transitions. [2023-11-06 22:04:39,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1373 transitions. [2023-11-06 22:04:39,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:39,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1373 transitions. [2023-11-06 22:04:39,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 228.83333333333334) internal successors, (1373), 6 states have internal predecessors, (1373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,135 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,138 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,138 INFO L175 Difference]: Start difference. First operand has 48 places, 42 transitions, 111 flow. Second operand 6 states and 1373 transitions. [2023-11-06 22:04:39,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 77 transitions, 343 flow [2023-11-06 22:04:39,140 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 77 transitions, 328 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:04:39,142 INFO L231 Difference]: Finished difference. Result has 48 places, 41 transitions, 112 flow [2023-11-06 22:04:39,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=41} [2023-11-06 22:04:39,143 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -33 predicate places. [2023-11-06 22:04:39,143 INFO L495 AbstractCegarLoop]: Abstraction has has 48 places, 41 transitions, 112 flow [2023-11-06 22:04:39,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 220.33333333333334) internal successors, (1322), 6 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:04:39,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:39,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:04:39,145 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 67 more)] === [2023-11-06 22:04:39,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:39,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1495357864, now seen corresponding path program 1 times [2023-11-06 22:04:39,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:04:39,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191943327] [2023-11-06 22:04:39,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:39,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:04:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:04:39,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:04:39,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191943327] [2023-11-06 22:04:39,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191943327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:39,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:39,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:39,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013175612] [2023-11-06 22:04:39,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:39,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:39,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:04:39,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:39,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:39,666 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 528 [2023-11-06 22:04:39,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 41 transitions, 112 flow. Second operand has 6 states, 6 states have (on average 221.33333333333334) internal successors, (1328), 6 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:04:39,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 528 [2023-11-06 22:04:39,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:04:39,946 INFO L124 PetriNetUnfolderBase]: 348/648 cut-off events. [2023-11-06 22:04:39,946 INFO L125 PetriNetUnfolderBase]: For 39/39 co-relation queries the response was YES. [2023-11-06 22:04:39,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 648 events. 348/648 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2836 event pairs, 188 based on Foata normal form. 0/508 useless extension candidates. Maximal degree in co-relation 1429. Up to 462 conditions per place. [2023-11-06 22:04:39,948 INFO L140 encePairwiseOnDemand]: 523/528 looper letters, 0 selfloop transitions, 0 changer transitions 72/72 dead transitions. [2023-11-06 22:04:39,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 72 transitions, 340 flow [2023-11-06 22:04:39,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:39,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-06 22:04:39,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1367 transitions. [2023-11-06 22:04:39,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43150252525252525 [2023-11-06 22:04:39,954 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1367 transitions. [2023-11-06 22:04:39,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1367 transitions. [2023-11-06 22:04:39,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:04:39,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1367 transitions. [2023-11-06 22:04:39,960 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 227.83333333333334) internal successors, (1367), 6 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,966 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,968 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 528.0) internal successors, (3696), 7 states have internal predecessors, (3696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,968 INFO L175 Difference]: Start difference. First operand has 48 places, 41 transitions, 112 flow. Second operand 6 states and 1367 transitions. [2023-11-06 22:04:39,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 72 transitions, 340 flow [2023-11-06 22:04:39,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 72 transitions, 330 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-06 22:04:39,970 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-11-06 22:04:39,971 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=528, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-11-06 22:04:39,972 INFO L281 CegarLoopForPetriNet]: 81 programPoint places, -34 predicate places. [2023-11-06 22:04:39,972 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-11-06 22:04:39,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 221.33333333333334) internal successors, (1328), 6 states have internal predecessors, (1328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:04:39,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (70 of 71 remaining) [2023-11-06 22:04:39,976 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (69 of 71 remaining) [2023-11-06 22:04:39,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (68 of 71 remaining) [2023-11-06 22:04:39,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (67 of 71 remaining) [2023-11-06 22:04:39,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (66 of 71 remaining) [2023-11-06 22:04:39,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (65 of 71 remaining) [2023-11-06 22:04:39,977 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (64 of 71 remaining) [2023-11-06 22:04:39,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (63 of 71 remaining) [2023-11-06 22:04:39,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (62 of 71 remaining) [2023-11-06 22:04:39,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (61 of 71 remaining) [2023-11-06 22:04:39,978 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (60 of 71 remaining) [2023-11-06 22:04:39,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (59 of 71 remaining) [2023-11-06 22:04:39,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (58 of 71 remaining) [2023-11-06 22:04:39,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (57 of 71 remaining) [2023-11-06 22:04:39,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (56 of 71 remaining) [2023-11-06 22:04:39,979 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (55 of 71 remaining) [2023-11-06 22:04:39,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (54 of 71 remaining) [2023-11-06 22:04:39,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (53 of 71 remaining) [2023-11-06 22:04:39,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (52 of 71 remaining) [2023-11-06 22:04:39,980 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (51 of 71 remaining) [2023-11-06 22:04:39,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (50 of 71 remaining) [2023-11-06 22:04:39,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (49 of 71 remaining) [2023-11-06 22:04:39,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (48 of 71 remaining) [2023-11-06 22:04:39,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (47 of 71 remaining) [2023-11-06 22:04:39,981 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (46 of 71 remaining) [2023-11-06 22:04:39,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (45 of 71 remaining) [2023-11-06 22:04:39,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (44 of 71 remaining) [2023-11-06 22:04:39,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (43 of 71 remaining) [2023-11-06 22:04:39,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (42 of 71 remaining) [2023-11-06 22:04:39,982 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (41 of 71 remaining) [2023-11-06 22:04:39,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (40 of 71 remaining) [2023-11-06 22:04:39,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (39 of 71 remaining) [2023-11-06 22:04:39,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 71 remaining) [2023-11-06 22:04:39,983 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (37 of 71 remaining) [2023-11-06 22:04:39,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (36 of 71 remaining) [2023-11-06 22:04:39,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 71 remaining) [2023-11-06 22:04:39,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (34 of 71 remaining) [2023-11-06 22:04:39,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (33 of 71 remaining) [2023-11-06 22:04:39,984 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (32 of 71 remaining) [2023-11-06 22:04:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (31 of 71 remaining) [2023-11-06 22:04:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 71 remaining) [2023-11-06 22:04:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (29 of 71 remaining) [2023-11-06 22:04:39,985 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (28 of 71 remaining) [2023-11-06 22:04:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (27 of 71 remaining) [2023-11-06 22:04:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (26 of 71 remaining) [2023-11-06 22:04:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (25 of 71 remaining) [2023-11-06 22:04:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (24 of 71 remaining) [2023-11-06 22:04:39,986 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (23 of 71 remaining) [2023-11-06 22:04:39,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (22 of 71 remaining) [2023-11-06 22:04:39,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (21 of 71 remaining) [2023-11-06 22:04:39,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (20 of 71 remaining) [2023-11-06 22:04:39,987 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (19 of 71 remaining) [2023-11-06 22:04:39,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (18 of 71 remaining) [2023-11-06 22:04:39,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (17 of 71 remaining) [2023-11-06 22:04:39,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (16 of 71 remaining) [2023-11-06 22:04:39,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (15 of 71 remaining) [2023-11-06 22:04:39,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (14 of 71 remaining) [2023-11-06 22:04:39,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (13 of 71 remaining) [2023-11-06 22:04:39,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (12 of 71 remaining) [2023-11-06 22:04:39,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (11 of 71 remaining) [2023-11-06 22:04:39,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (10 of 71 remaining) [2023-11-06 22:04:39,989 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (9 of 71 remaining) [2023-11-06 22:04:39,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (8 of 71 remaining) [2023-11-06 22:04:39,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (7 of 71 remaining) [2023-11-06 22:04:39,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (6 of 71 remaining) [2023-11-06 22:04:39,990 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (5 of 71 remaining) [2023-11-06 22:04:39,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (4 of 71 remaining) [2023-11-06 22:04:39,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (3 of 71 remaining) [2023-11-06 22:04:39,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (2 of 71 remaining) [2023-11-06 22:04:39,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (1 of 71 remaining) [2023-11-06 22:04:39,991 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (0 of 71 remaining) [2023-11-06 22:04:39,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:04:39,992 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-11-06 22:04:39,998 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:04:39,998 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:04:40,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:04:40 BasicIcfg [2023-11-06 22:04:40,002 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:04:40,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:04:40,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:04:40,003 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:04:40,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:04:27" (3/4) ... [2023-11-06 22:04:40,005 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:04:40,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:04:40,008 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:04:40,014 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-11-06 22:04:40,015 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:04:40,015 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:04:40,016 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:04:40,074 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:04:40,075 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:04:40,075 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:04:40,076 INFO L158 Benchmark]: Toolchain (without parser) took 13940.85ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 118.6MB in the beginning and 79.3MB in the end (delta: 39.3MB). Peak memory consumption was 120.4MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,076 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:04:40,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.60ms. Allocated memory is still 151.0MB. Free memory was 118.2MB in the beginning and 105.4MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,077 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.42ms. Allocated memory is still 151.0MB. Free memory was 105.4MB in the beginning and 102.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,077 INFO L158 Benchmark]: Boogie Preprocessor took 48.96ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 100.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,078 INFO L158 Benchmark]: RCFGBuilder took 1016.50ms. Allocated memory is still 151.0MB. Free memory was 100.3MB in the beginning and 57.6MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,078 INFO L158 Benchmark]: TraceAbstraction took 12448.08ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 56.7MB in the beginning and 83.5MB in the end (delta: -26.8MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,078 INFO L158 Benchmark]: Witness Printer took 72.17ms. Allocated memory is still 230.7MB. Free memory was 83.5MB in the beginning and 79.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:04:40,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 151.0MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.60ms. Allocated memory is still 151.0MB. Free memory was 118.2MB in the beginning and 105.4MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.42ms. Allocated memory is still 151.0MB. Free memory was 105.4MB in the beginning and 102.8MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.96ms. Allocated memory is still 151.0MB. Free memory was 102.8MB in the beginning and 100.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1016.50ms. Allocated memory is still 151.0MB. Free memory was 100.3MB in the beginning and 57.6MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 12448.08ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 56.7MB in the beginning and 83.5MB in the end (delta: -26.8MB). Peak memory consumption was 53.3MB. Max. memory is 16.1GB. * Witness Printer took 72.17ms. Allocated memory is still 230.7MB. Free memory was 83.5MB in the beginning and 79.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.8s, 239 PlacesBefore, 81 PlacesAfterwards, 243 TransitionsBefore, 79 TransitionsAfterwards, 7920 CoEnabledTransitionPairs, 8 FixpointIterations, 127 TrivialSequentialCompositions, 100 ConcurrentSequentialCompositions, 10 TrivialYvCompositions, 16 ConcurrentYvCompositions, 6 ChoiceCompositions, 259 TotalNumberOfCompositions, 33608 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12268, independent: 11619, independent conditional: 0, independent unconditional: 11619, dependent: 649, dependent conditional: 0, dependent unconditional: 649, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4087, independent: 4012, independent conditional: 0, independent unconditional: 4012, dependent: 75, dependent conditional: 0, dependent unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12268, independent: 7607, independent conditional: 0, independent unconditional: 7607, dependent: 574, dependent conditional: 0, dependent unconditional: 574, unknown: 4087, unknown conditional: 0, unknown unconditional: 4087] , Statistics on independence cache: Total cache size (in pairs): 500, Positive cache size: 449, Positive conditional cache size: 0, Positive unconditional cache size: 449, Negative cache size: 51, Negative conditional cache size: 0, Negative unconditional cache size: 51, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 48]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 53]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 78]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 81]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 94]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 95]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 116]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 96]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 102]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 104]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 360 locations, 71 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: 12.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 407 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 266 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1056 IncrementalHoareTripleChecker+Invalid, 1215 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 3 mSDtfsCounter, 1056 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=170occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 332 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 40 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:04:40,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27e5d530-7943-4e37-8d10-6207779d7395/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE