./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 06:48:35,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 06:48:36,021 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-29 06:48:36,026 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 06:48:36,027 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 06:48:36,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 06:48:36,053 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 06:48:36,053 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 06:48:36,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 06:48:36,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 06:48:36,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 06:48:36,056 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 06:48:36,056 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 06:48:36,057 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 06:48:36,057 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 06:48:36,058 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 06:48:36,058 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 06:48:36,059 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 06:48:36,059 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 06:48:36,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 06:48:36,061 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 06:48:36,061 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 06:48:36,062 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-29 06:48:36,062 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 06:48:36,063 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 06:48:36,063 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 06:48:36,063 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 06:48:36,064 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 06:48:36,064 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 06:48:36,065 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 06:48:36,065 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:48:36,066 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 06:48:36,066 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 06:48:36,066 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 06:48:36,067 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 06:48:36,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 06:48:36,067 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 06:48:36,067 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 06:48:36,067 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 06:48:36,068 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 06:48:36,068 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 06:48:36,068 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_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ead2366baa94ec77674f75cd829f45857f5651e204e91d33a749a2af2868461 [2023-11-29 06:48:36,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 06:48:36,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 06:48:36,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 06:48:36,337 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 06:48:36,337 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 06:48:36,339 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-11-29 06:48:39,151 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 06:48:39,328 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 06:48:39,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/sv-benchmarks/c/weaver/popl20-nonblocking-cntr-alt.wvr.c [2023-11-29 06:48:39,337 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/data/8cd10f303/674e1dd307ee402e854d8f673f2ac4d8/FLAG27ddb41d7 [2023-11-29 06:48:39,350 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/data/8cd10f303/674e1dd307ee402e854d8f673f2ac4d8 [2023-11-29 06:48:39,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 06:48:39,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 06:48:39,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 06:48:39,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 06:48:39,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 06:48:39,363 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,364 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c79a3d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39, skipping insertion in model container [2023-11-29 06:48:39,364 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 06:48:39,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:48:39,551 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 06:48:39,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 06:48:39,584 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:48:39,584 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 06:48:39,591 INFO L206 MainTranslator]: Completed translation [2023-11-29 06:48:39,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39 WrapperNode [2023-11-29 06:48:39,592 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 06:48:39,593 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 06:48:39,593 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 06:48:39,593 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 06:48:39,600 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,632 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 92 [2023-11-29 06:48:39,632 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 06:48:39,633 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 06:48:39,633 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 06:48:39,633 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 06:48:39,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,645 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,645 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,660 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,663 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 06:48:39,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 06:48:39,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 06:48:39,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 06:48:39,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (1/1) ... [2023-11-29 06:48:39,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 06:48:39,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 06:48:39,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 06:48:39,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 06:48:39,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 06:48:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-29 06:48:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-29 06:48:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-29 06:48:39,742 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-29 06:48:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-29 06:48:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 06:48:39,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-29 06:48:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-29 06:48:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-29 06:48:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 06:48:39,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 06:48:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-29 06:48:39,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 06:48:39,745 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-29 06:48:39,855 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 06:48:39,857 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 06:48:40,138 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 06:48:40,204 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 06:48:40,205 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-29 06:48:40,207 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:40 BoogieIcfgContainer [2023-11-29 06:48:40,207 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 06:48:40,210 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 06:48:40,210 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 06:48:40,213 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 06:48:40,213 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 06:48:39" (1/3) ... [2023-11-29 06:48:40,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d29e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:40, skipping insertion in model container [2023-11-29 06:48:40,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 06:48:39" (2/3) ... [2023-11-29 06:48:40,214 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d29e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 06:48:40, skipping insertion in model container [2023-11-29 06:48:40,214 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:40" (3/3) ... [2023-11-29 06:48:40,215 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-nonblocking-cntr-alt.wvr.c [2023-11-29 06:48:40,222 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-29 06:48:40,230 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 06:48:40,231 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-29 06:48:40,231 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-29 06:48:40,283 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-29 06:48:40,315 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 142 transitions, 298 flow [2023-11-29 06:48:40,367 INFO L124 PetriNetUnfolderBase]: 7/140 cut-off events. [2023-11-29 06:48:40,367 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 06:48:40,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 140 events. 7/140 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 78. Up to 2 conditions per place. [2023-11-29 06:48:40,373 INFO L82 GeneralOperation]: Start removeDead. Operand has 142 places, 142 transitions, 298 flow [2023-11-29 06:48:40,379 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 120 places, 119 transitions, 250 flow [2023-11-29 06:48:40,388 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 06:48:40,396 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f3f584e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 06:48:40,396 INFO L358 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2023-11-29 06:48:40,402 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-29 06:48:40,402 INFO L124 PetriNetUnfolderBase]: 0/18 cut-off events. [2023-11-29 06:48:40,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-29 06:48:40,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:40,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:40,404 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:40,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:40,409 INFO L85 PathProgramCache]: Analyzing trace with hash -815708459, now seen corresponding path program 1 times [2023-11-29 06:48:40,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:40,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389793624] [2023-11-29 06:48:40,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:40,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:40,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:40,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:40,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389793624] [2023-11-29 06:48:40,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389793624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:40,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:40,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:48:40,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266480494] [2023-11-29 06:48:40,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:40,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:48:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:40,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:48:40,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:48:40,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-29 06:48:40,695 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 119 transitions, 250 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-29 06:48:40,696 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:40,696 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-29 06:48:40,697 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:40,759 INFO L124 PetriNetUnfolderBase]: 13/152 cut-off events. [2023-11-29 06:48:40,759 INFO L125 PetriNetUnfolderBase]: For 18/21 co-relation queries the response was YES. [2023-11-29 06:48:40,761 INFO L83 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 152 events. 13/152 cut-off events. For 18/21 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 266 event pairs, 4 based on Foata normal form. 8/138 useless extension candidates. Maximal degree in co-relation 91. Up to 28 conditions per place. [2023-11-29 06:48:40,763 INFO L140 encePairwiseOnDemand]: 131/142 looper letters, 12 selfloop transitions, 2 changer transitions 1/110 dead transitions. [2023-11-29 06:48:40,764 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 110 transitions, 260 flow [2023-11-29 06:48:40,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:48:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:48:40,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 371 transitions. [2023-11-29 06:48:40,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8708920187793427 [2023-11-29 06:48:40,782 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 371 transitions. [2023-11-29 06:48:40,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 371 transitions. [2023-11-29 06:48:40,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:40,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 371 transitions. [2023-11-29 06:48:40,792 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 123.66666666666667) internal successors, (371), 3 states have internal predecessors, (371), 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) [2023-11-29 06:48:40,799 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:40,800 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:40,802 INFO L175 Difference]: Start difference. First operand has 120 places, 119 transitions, 250 flow. Second operand 3 states and 371 transitions. [2023-11-29 06:48:40,803 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 110 transitions, 260 flow [2023-11-29 06:48:40,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 110 transitions, 252 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:48:40,812 INFO L231 Difference]: Finished difference. Result has 112 places, 109 transitions, 226 flow [2023-11-29 06:48:40,814 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=112, PETRI_TRANSITIONS=109} [2023-11-29 06:48:40,819 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -8 predicate places. [2023-11-29 06:48:40,819 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 109 transitions, 226 flow [2023-11-29 06:48:40,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-29 06:48:40,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:40,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:40,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 06:48:40,821 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:40,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1871804956, now seen corresponding path program 1 times [2023-11-29 06:48:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:40,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655608649] [2023-11-29 06:48:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:40,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:40,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:40,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:40,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655608649] [2023-11-29 06:48:40,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655608649] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:40,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:40,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:48:40,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992419417] [2023-11-29 06:48:40,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:40,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:48:40,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:40,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:48:40,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:48:40,939 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-29 06:48:40,940 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 109 transitions, 226 flow. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-29 06:48:40,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:40,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-29 06:48:40,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:40,984 INFO L124 PetriNetUnfolderBase]: 8/140 cut-off events. [2023-11-29 06:48:40,984 INFO L125 PetriNetUnfolderBase]: For 3/5 co-relation queries the response was YES. [2023-11-29 06:48:40,985 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 140 events. 8/140 cut-off events. For 3/5 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 215 event pairs, 3 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 144. Up to 22 conditions per place. [2023-11-29 06:48:40,986 INFO L140 encePairwiseOnDemand]: 139/142 looper letters, 12 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2023-11-29 06:48:40,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 108 transitions, 252 flow [2023-11-29 06:48:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:48:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:48:40,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 363 transitions. [2023-11-29 06:48:40,990 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.852112676056338 [2023-11-29 06:48:40,990 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 363 transitions. [2023-11-29 06:48:40,990 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 363 transitions. [2023-11-29 06:48:40,991 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:40,991 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 363 transitions. [2023-11-29 06:48:40,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 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) [2023-11-29 06:48:40,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:40,996 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:40,996 INFO L175 Difference]: Start difference. First operand has 112 places, 109 transitions, 226 flow. Second operand 3 states and 363 transitions. [2023-11-29 06:48:40,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 108 transitions, 252 flow [2023-11-29 06:48:40,998 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 108 transitions, 248 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:48:41,001 INFO L231 Difference]: Finished difference. Result has 110 places, 108 transitions, 224 flow [2023-11-29 06:48:41,001 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=224, PETRI_PLACES=110, PETRI_TRANSITIONS=108} [2023-11-29 06:48:41,002 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -10 predicate places. [2023-11-29 06:48:41,002 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 108 transitions, 224 flow [2023-11-29 06:48:41,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2023-11-29 06:48:41,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:41,003 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:41,003 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 06:48:41,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:41,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:41,004 INFO L85 PathProgramCache]: Analyzing trace with hash 147402584, now seen corresponding path program 1 times [2023-11-29 06:48:41,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:41,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249091704] [2023-11-29 06:48:41,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:41,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:41,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:41,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249091704] [2023-11-29 06:48:41,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249091704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:41,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:41,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:48:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697439103] [2023-11-29 06:48:41,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:41,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:48:41,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:41,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:48:41,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:48:41,079 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-29 06:48:41,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 108 transitions, 224 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-11-29 06:48:41,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:41,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-29 06:48:41,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:41,126 INFO L124 PetriNetUnfolderBase]: 16/156 cut-off events. [2023-11-29 06:48:41,127 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2023-11-29 06:48:41,128 INFO L83 FinitePrefix]: Finished finitePrefix Result has 199 conditions, 156 events. 16/156 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 282 event pairs, 6 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 164. Up to 32 conditions per place. [2023-11-29 06:48:41,129 INFO L140 encePairwiseOnDemand]: 138/142 looper letters, 12 selfloop transitions, 1 changer transitions 0/105 dead transitions. [2023-11-29 06:48:41,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 105 transitions, 244 flow [2023-11-29 06:48:41,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:48:41,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:48:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 364 transitions. [2023-11-29 06:48:41,132 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8544600938967136 [2023-11-29 06:48:41,132 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 364 transitions. [2023-11-29 06:48:41,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 364 transitions. [2023-11-29 06:48:41,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:41,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 364 transitions. [2023-11-29 06:48:41,135 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 121.33333333333333) internal successors, (364), 3 states have internal predecessors, (364), 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) [2023-11-29 06:48:41,137 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:41,137 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:41,138 INFO L175 Difference]: Start difference. First operand has 110 places, 108 transitions, 224 flow. Second operand 3 states and 364 transitions. [2023-11-29 06:48:41,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 105 transitions, 244 flow [2023-11-29 06:48:41,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 105 transitions, 240 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-29 06:48:41,142 INFO L231 Difference]: Finished difference. Result has 107 places, 105 transitions, 216 flow [2023-11-29 06:48:41,142 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=216, PETRI_PLACES=107, PETRI_TRANSITIONS=105} [2023-11-29 06:48:41,143 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -13 predicate places. [2023-11-29 06:48:41,143 INFO L495 AbstractCegarLoop]: Abstraction has has 107 places, 105 transitions, 216 flow [2023-11-29 06:48:41,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-11-29 06:48:41,144 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:41,144 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:41,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 06:48:41,145 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:41,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:41,145 INFO L85 PathProgramCache]: Analyzing trace with hash 404657866, now seen corresponding path program 1 times [2023-11-29 06:48:41,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:41,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701710089] [2023-11-29 06:48:41,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:41,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:41,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:41,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701710089] [2023-11-29 06:48:41,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701710089] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:41,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:41,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:48:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649590455] [2023-11-29 06:48:41,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:41,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:48:41,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:41,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:48:41,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:48:41,215 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-29 06:48:41,216 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 105 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-11-29 06:48:41,216 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:41,216 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-29 06:48:41,217 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:41,264 INFO L124 PetriNetUnfolderBase]: 14/200 cut-off events. [2023-11-29 06:48:41,265 INFO L125 PetriNetUnfolderBase]: For 5/8 co-relation queries the response was YES. [2023-11-29 06:48:41,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244 conditions, 200 events. 14/200 cut-off events. For 5/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 548 event pairs, 2 based on Foata normal form. 2/188 useless extension candidates. Maximal degree in co-relation 209. Up to 27 conditions per place. [2023-11-29 06:48:41,267 INFO L140 encePairwiseOnDemand]: 137/142 looper letters, 14 selfloop transitions, 2 changer transitions 4/107 dead transitions. [2023-11-29 06:48:41,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 107 transitions, 257 flow [2023-11-29 06:48:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:48:41,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:48:41,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2023-11-29 06:48:41,269 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.863849765258216 [2023-11-29 06:48:41,269 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 368 transitions. [2023-11-29 06:48:41,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 368 transitions. [2023-11-29 06:48:41,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:41,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 368 transitions. [2023-11-29 06:48:41,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.66666666666667) internal successors, (368), 3 states have internal predecessors, (368), 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) [2023-11-29 06:48:41,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:41,273 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:41,273 INFO L175 Difference]: Start difference. First operand has 107 places, 105 transitions, 216 flow. Second operand 3 states and 368 transitions. [2023-11-29 06:48:41,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 107 transitions, 257 flow [2023-11-29 06:48:41,275 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 107 transitions, 256 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-29 06:48:41,277 INFO L231 Difference]: Finished difference. Result has 106 places, 99 transitions, 211 flow [2023-11-29 06:48:41,277 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=211, PETRI_PLACES=106, PETRI_TRANSITIONS=99} [2023-11-29 06:48:41,278 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -14 predicate places. [2023-11-29 06:48:41,278 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 99 transitions, 211 flow [2023-11-29 06:48:41,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.0) internal successors, (351), 3 states have internal predecessors, (351), 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) [2023-11-29 06:48:41,279 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:41,279 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:41,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 06:48:41,279 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:41,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:41,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1213300575, now seen corresponding path program 1 times [2023-11-29 06:48:41,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370351385] [2023-11-29 06:48:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:41,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:41,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:41,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370351385] [2023-11-29 06:48:41,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370351385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:41,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:41,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:48:41,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776541335] [2023-11-29 06:48:41,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:41,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:48:41,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:41,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:48:41,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:48:41,977 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-29 06:48:41,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 99 transitions, 211 flow. Second operand has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 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) [2023-11-29 06:48:41,979 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:41,979 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-29 06:48:41,979 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:42,078 INFO L124 PetriNetUnfolderBase]: 44/246 cut-off events. [2023-11-29 06:48:42,079 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 06:48:42,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 350 conditions, 246 events. 44/246 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 851 event pairs, 2 based on Foata normal form. 0/236 useless extension candidates. Maximal degree in co-relation 314. Up to 33 conditions per place. [2023-11-29 06:48:42,081 INFO L140 encePairwiseOnDemand]: 137/142 looper letters, 17 selfloop transitions, 4 changer transitions 0/106 dead transitions. [2023-11-29 06:48:42,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 106 transitions, 267 flow [2023-11-29 06:48:42,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:48:42,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:48:42,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 718 transitions. [2023-11-29 06:48:42,085 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8427230046948356 [2023-11-29 06:48:42,085 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 718 transitions. [2023-11-29 06:48:42,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 718 transitions. [2023-11-29 06:48:42,086 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:42,086 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 718 transitions. [2023-11-29 06:48:42,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.66666666666667) internal successors, (718), 6 states have internal predecessors, (718), 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) [2023-11-29 06:48:42,091 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-11-29 06:48:42,092 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-11-29 06:48:42,092 INFO L175 Difference]: Start difference. First operand has 106 places, 99 transitions, 211 flow. Second operand 6 states and 718 transitions. [2023-11-29 06:48:42,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 106 transitions, 267 flow [2023-11-29 06:48:42,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 106 transitions, 267 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-29 06:48:42,095 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 217 flow [2023-11-29 06:48:42,095 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=217, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2023-11-29 06:48:42,096 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -14 predicate places. [2023-11-29 06:48:42,096 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 217 flow [2023-11-29 06:48:42,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.5) internal successors, (705), 6 states have internal predecessors, (705), 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) [2023-11-29 06:48:42,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:42,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:42,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 06:48:42,098 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:42,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:42,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1851448434, now seen corresponding path program 1 times [2023-11-29 06:48:42,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:42,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96294602] [2023-11-29 06:48:42,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:42,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:42,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:42,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:42,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96294602] [2023-11-29 06:48:42,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96294602] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:42,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:42,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 06:48:42,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878944200] [2023-11-29 06:48:42,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:42,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 06:48:42,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:42,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 06:48:42,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 06:48:42,689 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 142 [2023-11-29 06:48:42,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 217 flow. Second operand has 6 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 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) [2023-11-29 06:48:42,691 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:42,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 142 [2023-11-29 06:48:42,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:42,752 INFO L124 PetriNetUnfolderBase]: 20/201 cut-off events. [2023-11-29 06:48:42,752 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-29 06:48:42,753 INFO L83 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 201 events. 20/201 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 540 event pairs, 2 based on Foata normal form. 0/195 useless extension candidates. Maximal degree in co-relation 245. Up to 19 conditions per place. [2023-11-29 06:48:42,753 INFO L140 encePairwiseOnDemand]: 137/142 looper letters, 13 selfloop transitions, 4 changer transitions 0/101 dead transitions. [2023-11-29 06:48:42,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 101 transitions, 257 flow [2023-11-29 06:48:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 06:48:42,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-29 06:48:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 714 transitions. [2023-11-29 06:48:42,756 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8380281690140845 [2023-11-29 06:48:42,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 714 transitions. [2023-11-29 06:48:42,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 714 transitions. [2023-11-29 06:48:42,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:42,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 714 transitions. [2023-11-29 06:48:42,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 119.0) internal successors, (714), 6 states have internal predecessors, (714), 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) [2023-11-29 06:48:42,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-11-29 06:48:42,762 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 142.0) internal successors, (994), 7 states have internal predecessors, (994), 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) [2023-11-29 06:48:42,762 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 217 flow. Second operand 6 states and 714 transitions. [2023-11-29 06:48:42,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 101 transitions, 257 flow [2023-11-29 06:48:42,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 101 transitions, 250 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:48:42,765 INFO L231 Difference]: Finished difference. Result has 106 places, 97 transitions, 216 flow [2023-11-29 06:48:42,765 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=216, PETRI_PLACES=106, PETRI_TRANSITIONS=97} [2023-11-29 06:48:42,766 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -14 predicate places. [2023-11-29 06:48:42,766 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 97 transitions, 216 flow [2023-11-29 06:48:42,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 117.66666666666667) internal successors, (706), 6 states have internal predecessors, (706), 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) [2023-11-29 06:48:42,767 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-29 06:48:42,767 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:42,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 06:48:42,768 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-29 06:48:42,768 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 06:48:42,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1301632273, now seen corresponding path program 1 times [2023-11-29 06:48:42,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 06:48:42,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880590044] [2023-11-29 06:48:42,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 06:48:42,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 06:48:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 06:48:42,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 06:48:42,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 06:48:42,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880590044] [2023-11-29 06:48:42,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880590044] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 06:48:42,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 06:48:42,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 06:48:42,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929647466] [2023-11-29 06:48:42,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 06:48:42,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 06:48:42,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 06:48:42,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 06:48:42,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 06:48:42,838 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 142 [2023-11-29 06:48:42,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 97 transitions, 216 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2023-11-29 06:48:42,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-29 06:48:42,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 142 [2023-11-29 06:48:42,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-29 06:48:42,870 INFO L124 PetriNetUnfolderBase]: 10/185 cut-off events. [2023-11-29 06:48:42,870 INFO L125 PetriNetUnfolderBase]: For 4/5 co-relation queries the response was YES. [2023-11-29 06:48:42,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 185 events. 10/185 cut-off events. For 4/5 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 449 event pairs, 2 based on Foata normal form. 1/180 useless extension candidates. Maximal degree in co-relation 207. Up to 19 conditions per place. [2023-11-29 06:48:42,871 INFO L140 encePairwiseOnDemand]: 140/142 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2023-11-29 06:48:42,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 96 transitions, 228 flow [2023-11-29 06:48:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 06:48:42,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-29 06:48:42,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 377 transitions. [2023-11-29 06:48:42,873 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8849765258215962 [2023-11-29 06:48:42,873 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 377 transitions. [2023-11-29 06:48:42,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 377 transitions. [2023-11-29 06:48:42,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 06:48:42,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 377 transitions. [2023-11-29 06:48:42,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 125.66666666666667) internal successors, (377), 3 states have internal predecessors, (377), 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) [2023-11-29 06:48:42,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:42,877 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 06:48:42,877 INFO L175 Difference]: Start difference. First operand has 106 places, 97 transitions, 216 flow. Second operand 3 states and 377 transitions. [2023-11-29 06:48:42,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 96 transitions, 228 flow [2023-11-29 06:48:42,878 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 96 transitions, 221 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-29 06:48:42,879 INFO L231 Difference]: Finished difference. Result has 103 places, 0 transitions, 0 flow [2023-11-29 06:48:42,879 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=103, PETRI_TRANSITIONS=0} [2023-11-29 06:48:42,880 INFO L281 CegarLoopForPetriNet]: 120 programPoint places, -17 predicate places. [2023-11-29 06:48:42,880 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 0 transitions, 0 flow [2023-11-29 06:48:42,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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) [2023-11-29 06:48:42,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (24 of 25 remaining) [2023-11-29 06:48:42,883 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (23 of 25 remaining) [2023-11-29 06:48:42,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (22 of 25 remaining) [2023-11-29 06:48:42,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (21 of 25 remaining) [2023-11-29 06:48:42,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (20 of 25 remaining) [2023-11-29 06:48:42,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (19 of 25 remaining) [2023-11-29 06:48:42,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (18 of 25 remaining) [2023-11-29 06:48:42,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (17 of 25 remaining) [2023-11-29 06:48:42,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 25 remaining) [2023-11-29 06:48:42,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 25 remaining) [2023-11-29 06:48:42,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 25 remaining) [2023-11-29 06:48:42,885 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (13 of 25 remaining) [2023-11-29 06:48:42,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (12 of 25 remaining) [2023-11-29 06:48:42,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (11 of 25 remaining) [2023-11-29 06:48:42,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (10 of 25 remaining) [2023-11-29 06:48:42,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (9 of 25 remaining) [2023-11-29 06:48:42,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 25 remaining) [2023-11-29 06:48:42,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 25 remaining) [2023-11-29 06:48:42,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (6 of 25 remaining) [2023-11-29 06:48:42,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (5 of 25 remaining) [2023-11-29 06:48:42,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (4 of 25 remaining) [2023-11-29 06:48:42,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 25 remaining) [2023-11-29 06:48:42,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 25 remaining) [2023-11-29 06:48:42,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 25 remaining) [2023-11-29 06:48:42,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 25 remaining) [2023-11-29 06:48:42,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 06:48:42,889 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 06:48:42,894 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-29 06:48:42,894 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 06:48:42,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 06:48:42 BasicIcfg [2023-11-29 06:48:42,900 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 06:48:42,901 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 06:48:42,901 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 06:48:42,901 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 06:48:42,902 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 06:48:40" (3/4) ... [2023-11-29 06:48:42,903 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 06:48:42,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-29 06:48:42,906 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-29 06:48:42,911 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 06:48:42,911 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 06:48:42,911 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 06:48:42,911 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 06:48:42,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 06:48:42,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 06:48:42,997 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 06:48:42,997 INFO L158 Benchmark]: Toolchain (without parser) took 3643.57ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 81.2MB in the beginning and 56.9MB in the end (delta: 24.3MB). Peak memory consumption was 88.0MB. Max. memory is 16.1GB. [2023-11-29 06:48:42,998 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 82.8MB in the beginning and 82.8MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 06:48:42,998 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.01ms. Allocated memory is still 119.5MB. Free memory was 80.8MB in the beginning and 69.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 06:48:42,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.06ms. Allocated memory is still 119.5MB. Free memory was 69.6MB in the beginning and 67.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:48:42,999 INFO L158 Benchmark]: Boogie Preprocessor took 30.80ms. Allocated memory is still 119.5MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 06:48:43,000 INFO L158 Benchmark]: RCFGBuilder took 542.73ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 66.2MB in the beginning and 110.2MB in the end (delta: -44.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-29 06:48:43,000 INFO L158 Benchmark]: TraceAbstraction took 2690.66ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 109.0MB in the beginning and 62.1MB in the end (delta: 46.9MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. [2023-11-29 06:48:43,001 INFO L158 Benchmark]: Witness Printer took 95.72ms. Allocated memory is still 182.5MB. Free memory was 62.1MB in the beginning and 56.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 06:48:43,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 119.5MB. Free memory was 82.8MB in the beginning and 82.8MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.01ms. Allocated memory is still 119.5MB. Free memory was 80.8MB in the beginning and 69.6MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.06ms. Allocated memory is still 119.5MB. Free memory was 69.6MB in the beginning and 67.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.80ms. Allocated memory is still 119.5MB. Free memory was 67.9MB in the beginning and 66.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 542.73ms. Allocated memory was 119.5MB in the beginning and 151.0MB in the end (delta: 31.5MB). Free memory was 66.2MB in the beginning and 110.2MB in the end (delta: -44.0MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 2690.66ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 109.0MB in the beginning and 62.1MB in the end (delta: 46.9MB). Peak memory consumption was 78.2MB. Max. memory is 16.1GB. * Witness Printer took 95.72ms. Allocated memory is still 182.5MB. Free memory was 62.1MB in the beginning and 56.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: 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: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: 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: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: 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: 75]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 77]: 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, 167 locations, 25 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 224 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 109 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 342 IncrementalHoareTripleChecker+Invalid, 400 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 23 mSDtfsCounter, 342 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=250occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 1.2s InterpolantComputationTime, 329 NumberOfCodeBlocks, 329 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 494 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 16 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-29 06:48:43,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2701f01-a8cd-491d-95df-9073a9b8435b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE