./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cfa53b3a6eade068c4346d28766037c8d26fae61c62dd4c8f6fc2f9d68567d2c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:58:18,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:58:18,991 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:58:19,004 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:58:19,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:58:19,041 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:58:19,043 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:58:19,044 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:58:19,045 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:58:19,050 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:58:19,051 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:58:19,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:58:19,052 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:58:19,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:58:19,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:58:19,055 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:58:19,056 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:58:19,056 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:58:19,057 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:58:19,057 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:58:19,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:58:19,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:58:19,059 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:58:19,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:58:19,060 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:58:19,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:58:19,061 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:58:19,062 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:58:19,062 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:58:19,063 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:58:19,064 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:19,064 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:58:19,065 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:58:19,065 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:58:19,065 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:58:19,066 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:58:19,066 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:58:19,066 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:58:19,067 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:58:19,067 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:58:19,067 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:58:19,068 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_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cfa53b3a6eade068c4346d28766037c8d26fae61c62dd4c8f6fc2f9d68567d2c [2023-11-06 22:58:19,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:19,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:19,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:19,417 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:19,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:19,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2023-11-06 22:58:22,485 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:22,721 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:22,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/sv-benchmarks/c/weaver/chl-simpl-str-symm.wvr.c [2023-11-06 22:58:22,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/data/d8afd0ca3/3b7d55d77af849df8cef39e75ebcccd8/FLAG4354a25c0 [2023-11-06 22:58:22,746 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/data/d8afd0ca3/3b7d55d77af849df8cef39e75ebcccd8 [2023-11-06 22:58:22,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:22,750 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:22,752 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:22,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:22,757 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:22,758 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:22" (1/1) ... [2023-11-06 22:58:22,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab78dfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:22, skipping insertion in model container [2023-11-06 22:58:22,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:22" (1/1) ... [2023-11-06 22:58:22,785 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:23,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:23,025 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:23,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:23,070 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:23,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23 WrapperNode [2023-11-06 22:58:23,071 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:23,072 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:23,072 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:23,072 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:23,081 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,092 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,125 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 205 [2023-11-06 22:58:23,125 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:23,126 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:23,126 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:23,126 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:23,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,151 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,155 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,157 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,161 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:23,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:23,162 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:23,162 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:23,163 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (1/1) ... [2023-11-06 22:58:23,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:23,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:23,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:23,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:23,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-06 22:58:23,234 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-06 22:58:23,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-06 22:58:23,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-06 22:58:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:58:23,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:58:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:58:23,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:23,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:58:23,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:58:23,239 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:58:23,408 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:23,414 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:23,887 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:58:23,897 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:58:23,898 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:58:23,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:23 BoogieIcfgContainer [2023-11-06 22:58:23,900 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:58:23,936 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:58:23,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:58:23,940 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:58:23,941 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:22" (1/3) ... [2023-11-06 22:58:23,942 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3371c5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:23, skipping insertion in model container [2023-11-06 22:58:23,942 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:23" (2/3) ... [2023-11-06 22:58:23,943 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3371c5a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:58:23, skipping insertion in model container [2023-11-06 22:58:23,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:23" (3/3) ... [2023-11-06 22:58:23,944 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-simpl-str-symm.wvr.c [2023-11-06 22:58:23,954 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:58:23,987 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:58:23,988 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2023-11-06 22:58:23,988 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:58:24,084 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-06 22:58:24,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 273 transitions, 560 flow [2023-11-06 22:58:24,275 INFO L124 PetriNetUnfolderBase]: 14/271 cut-off events. [2023-11-06 22:58:24,283 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:58:24,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 280 conditions, 271 events. 14/271 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 480 event pairs, 0 based on Foata normal form. 0/233 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2023-11-06 22:58:24,300 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 273 transitions, 560 flow [2023-11-06 22:58:24,311 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 242 places, 247 transitions, 506 flow [2023-11-06 22:58:24,315 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:58:24,326 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 242 places, 247 transitions, 506 flow [2023-11-06 22:58:24,329 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 242 places, 247 transitions, 506 flow [2023-11-06 22:58:24,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 242 places, 247 transitions, 506 flow [2023-11-06 22:58:24,394 INFO L124 PetriNetUnfolderBase]: 12/247 cut-off events. [2023-11-06 22:58:24,394 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-06 22:58:24,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 247 events. 12/247 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 467 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2023-11-06 22:58:24,421 INFO L119 LiptonReduction]: Number of co-enabled transitions 11160 [2023-11-06 22:58:31,561 INFO L134 LiptonReduction]: Checked pairs total: 27399 [2023-11-06 22:58:31,562 INFO L136 LiptonReduction]: Total number of compositions: 263 [2023-11-06 22:58:31,577 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:58:31,584 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1eab7b9c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:58:31,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2023-11-06 22:58:31,586 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-06 22:58:31,587 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-06 22:58:31,587 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:58:31,587 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:58:31,588 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-06 22:58:31,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-06 22:58:31,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:31,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1009, now seen corresponding path program 1 times [2023-11-06 22:58:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774027641] [2023-11-06 22:58:31,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:31,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:31,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:31,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:31,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:31,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774027641] [2023-11-06 22:58:31,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774027641] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:31,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:31,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-06 22:58:31,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124538636] [2023-11-06 22:58:31,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:31,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:58:31,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:31,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:58:31,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:58:31,754 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 536 [2023-11-06 22:58:31,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 57 transitions, 126 flow. Second operand has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:31,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:58:31,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 536 [2023-11-06 22:58:31,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:58:31,917 INFO L124 PetriNetUnfolderBase]: 161/357 cut-off events. [2023-11-06 22:58:31,917 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2023-11-06 22:58:31,920 INFO L83 FinitePrefix]: Finished finitePrefix Result has 641 conditions, 357 events. 161/357 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1891 event pairs, 105 based on Foata normal form. 1/264 useless extension candidates. Maximal degree in co-relation 570. Up to 260 conditions per place. [2023-11-06 22:58:31,925 INFO L140 encePairwiseOnDemand]: 522/536 looper letters, 21 selfloop transitions, 0 changer transitions 1/43 dead transitions. [2023-11-06 22:58:31,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 43 transitions, 142 flow [2023-11-06 22:58:31,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:58:31,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-06 22:58:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 558 transitions. [2023-11-06 22:58:31,953 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5205223880597015 [2023-11-06 22:58:31,954 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 558 transitions. [2023-11-06 22:58:31,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 558 transitions. [2023-11-06 22:58:31,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:58:31,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 558 transitions. [2023-11-06 22:58:31,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 279.0) internal successors, (558), 2 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:31,974 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 536.0) internal successors, (1608), 3 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:31,976 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 536.0) internal successors, (1608), 3 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:31,978 INFO L175 Difference]: Start difference. First operand has 60 places, 57 transitions, 126 flow. Second operand 2 states and 558 transitions. [2023-11-06 22:58:31,979 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 43 transitions, 142 flow [2023-11-06 22:58:31,986 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 43 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-06 22:58:31,989 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 87 flow [2023-11-06 22:58:31,991 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=536, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=87, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-11-06 22:58:31,996 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-11-06 22:58:31,997 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 87 flow [2023-11-06 22:58:31,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 261.5) internal successors, (523), 2 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:31,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:58:31,998 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-06 22:58:31,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:58:31,999 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-06 22:58:32,000 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:32,000 INFO L85 PathProgramCache]: Analyzing trace with hash 31161463, now seen corresponding path program 1 times [2023-11-06 22:58:32,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:32,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908429384] [2023-11-06 22:58:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:32,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:32,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:32,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908429384] [2023-11-06 22:58:32,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908429384] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:32,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567373807] [2023-11-06 22:58:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:32,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:32,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:32,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:32,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:32,177 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 536 [2023-11-06 22:58:32,179 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,179 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:58:32,180 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 536 [2023-11-06 22:58:32,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:58:32,342 INFO L124 PetriNetUnfolderBase]: 289/582 cut-off events. [2023-11-06 22:58:32,343 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-06 22:58:32,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 582 events. 289/582 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 2864 event pairs, 114 based on Foata normal form. 0/472 useless extension candidates. Maximal degree in co-relation 1059. Up to 457 conditions per place. [2023-11-06 22:58:32,348 INFO L140 encePairwiseOnDemand]: 530/536 looper letters, 31 selfloop transitions, 3 changer transitions 0/47 dead transitions. [2023-11-06 22:58:32,349 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 47 transitions, 166 flow [2023-11-06 22:58:32,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:32,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:58:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 790 transitions. [2023-11-06 22:58:32,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49129353233830847 [2023-11-06 22:58:32,354 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 790 transitions. [2023-11-06 22:58:32,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 790 transitions. [2023-11-06 22:58:32,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:58:32,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 790 transitions. [2023-11-06 22:58:32,359 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 263.3333333333333) internal successors, (790), 3 states have internal predecessors, (790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,365 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,368 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,368 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 87 flow. Second operand 3 states and 790 transitions. [2023-11-06 22:58:32,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 47 transitions, 166 flow [2023-11-06 22:58:32,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 47 transitions, 166 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:58:32,371 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 102 flow [2023-11-06 22:58:32,371 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=536, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=102, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2023-11-06 22:58:32,372 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-11-06 22:58:32,373 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 102 flow [2023-11-06 22:58:32,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 252.33333333333334) internal successors, (757), 3 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,374 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:58:32,374 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-06 22:58:32,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:58:32,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-06 22:58:32,375 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:32,376 INFO L85 PathProgramCache]: Analyzing trace with hash -109737907, now seen corresponding path program 1 times [2023-11-06 22:58:32,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:32,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801118478] [2023-11-06 22:58:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:32,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:32,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:32,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801118478] [2023-11-06 22:58:32,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801118478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:32,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:32,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:32,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520844456] [2023-11-06 22:58:32,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:32,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:32,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:32,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:32,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:32,503 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 251 out of 536 [2023-11-06 22:58:32,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 102 flow. Second operand has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:58:32,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 251 of 536 [2023-11-06 22:58:32,506 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:58:32,618 INFO L124 PetriNetUnfolderBase]: 194/439 cut-off events. [2023-11-06 22:58:32,618 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-06 22:58:32,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 439 events. 194/439 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2337 event pairs, 60 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 779. Up to 302 conditions per place. [2023-11-06 22:58:32,622 INFO L140 encePairwiseOnDemand]: 530/536 looper letters, 25 selfloop transitions, 3 changer transitions 0/45 dead transitions. [2023-11-06 22:58:32,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 45 transitions, 165 flow [2023-11-06 22:58:32,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:32,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:58:32,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 784 transitions. [2023-11-06 22:58:32,626 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48756218905472637 [2023-11-06 22:58:32,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 784 transitions. [2023-11-06 22:58:32,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 784 transitions. [2023-11-06 22:58:32,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:58:32,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 784 transitions. [2023-11-06 22:58:32,631 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,636 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,638 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,638 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 102 flow. Second operand 3 states and 784 transitions. [2023-11-06 22:58:32,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 45 transitions, 165 flow [2023-11-06 22:58:32,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 45 transitions, 165 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:58:32,641 INFO L231 Difference]: Finished difference. Result has 42 places, 42 transitions, 117 flow [2023-11-06 22:58:32,642 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=536, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=117, PETRI_PLACES=42, PETRI_TRANSITIONS=42} [2023-11-06 22:58:32,643 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -18 predicate places. [2023-11-06 22:58:32,643 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 42 transitions, 117 flow [2023-11-06 22:58:32,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 253.0) internal successors, (759), 3 states have internal predecessors, (759), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:58:32,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:32,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:58:32,650 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-06 22:58:32,650 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:32,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2009502539, now seen corresponding path program 1 times [2023-11-06 22:58:32,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:32,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341659402] [2023-11-06 22:58:32,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:32,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:32,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:32,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:32,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341659402] [2023-11-06 22:58:32,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341659402] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:32,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:32,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:32,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432174260] [2023-11-06 22:58:32,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:32,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:32,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:32,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:32,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:32,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 536 [2023-11-06 22:58:32,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 42 transitions, 117 flow. Second operand has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:58:32,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 536 [2023-11-06 22:58:32,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:58:32,867 INFO L124 PetriNetUnfolderBase]: 324/622 cut-off events. [2023-11-06 22:58:32,867 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2023-11-06 22:58:32,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1265 conditions, 622 events. 324/622 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3171 event pairs, 115 based on Foata normal form. 0/520 useless extension candidates. Maximal degree in co-relation 1260. Up to 293 conditions per place. [2023-11-06 22:58:32,873 INFO L140 encePairwiseOnDemand]: 532/536 looper letters, 40 selfloop transitions, 2 changer transitions 3/59 dead transitions. [2023-11-06 22:58:32,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 59 transitions, 247 flow [2023-11-06 22:58:32,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:32,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:58:32,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 807 transitions. [2023-11-06 22:58:32,877 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5018656716417911 [2023-11-06 22:58:32,877 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 807 transitions. [2023-11-06 22:58:32,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 807 transitions. [2023-11-06 22:58:32,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:58:32,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 807 transitions. [2023-11-06 22:58:32,882 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 269.0) internal successors, (807), 3 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,889 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,890 INFO L175 Difference]: Start difference. First operand has 42 places, 42 transitions, 117 flow. Second operand 3 states and 807 transitions. [2023-11-06 22:58:32,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 59 transitions, 247 flow [2023-11-06 22:58:32,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 59 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:58:32,893 INFO L231 Difference]: Finished difference. Result has 43 places, 42 transitions, 127 flow [2023-11-06 22:58:32,893 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=536, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=43, PETRI_TRANSITIONS=42} [2023-11-06 22:58:32,894 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-11-06 22:58:32,895 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 42 transitions, 127 flow [2023-11-06 22:58:32,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,896 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-06 22:58:32,896 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:58:32,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:58:32,897 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2023-11-06 22:58:32,897 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:58:32,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1076327916, now seen corresponding path program 1 times [2023-11-06 22:58:32,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:58:32,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964480021] [2023-11-06 22:58:32,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:58:32,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:58:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:58:32,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:58:32,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:58:32,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964480021] [2023-11-06 22:58:32,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964480021] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:58:32,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:58:32,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:58:32,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181180949] [2023-11-06 22:58:32,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:58:32,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:58:32,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:58:32,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:58:32,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:58:32,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 536 [2023-11-06 22:58:32,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 127 flow. Second operand has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:32,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-06 22:58:32,972 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 536 [2023-11-06 22:58:32,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-06 22:58:33,139 INFO L124 PetriNetUnfolderBase]: 308/596 cut-off events. [2023-11-06 22:58:33,140 INFO L125 PetriNetUnfolderBase]: For 27/27 co-relation queries the response was YES. [2023-11-06 22:58:33,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 596 events. 308/596 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2911 event pairs, 102 based on Foata normal form. 0/506 useless extension candidates. Maximal degree in co-relation 1267. Up to 304 conditions per place. [2023-11-06 22:58:33,143 INFO L140 encePairwiseOnDemand]: 532/536 looper letters, 0 selfloop transitions, 0 changer transitions 58/58 dead transitions. [2023-11-06 22:58:33,143 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 58 transitions, 251 flow [2023-11-06 22:58:33,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:58:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-06 22:58:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 805 transitions. [2023-11-06 22:58:33,147 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5006218905472637 [2023-11-06 22:58:33,147 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 805 transitions. [2023-11-06 22:58:33,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 805 transitions. [2023-11-06 22:58:33,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:58:33,148 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 805 transitions. [2023-11-06 22:58:33,151 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:33,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:33,158 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 536.0) internal successors, (2144), 4 states have internal predecessors, (2144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:33,158 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 127 flow. Second operand 3 states and 805 transitions. [2023-11-06 22:58:33,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 58 transitions, 251 flow [2023-11-06 22:58:33,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 58 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-06 22:58:33,163 INFO L231 Difference]: Finished difference. Result has 43 places, 0 transitions, 0 flow [2023-11-06 22:58:33,163 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=536, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=43, PETRI_TRANSITIONS=0} [2023-11-06 22:58:33,166 INFO L281 CegarLoopForPetriNet]: 60 programPoint places, -17 predicate places. [2023-11-06 22:58:33,166 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 0 transitions, 0 flow [2023-11-06 22:58:33,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.3333333333333) internal successors, (769), 3 states have internal predecessors, (769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:58:33,170 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (37 of 38 remaining) [2023-11-06 22:58:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2023-11-06 22:58:33,171 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2023-11-06 22:58:33,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2023-11-06 22:58:33,173 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2023-11-06 22:58:33,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2023-11-06 22:58:33,174 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2023-11-06 22:58:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2023-11-06 22:58:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2023-11-06 22:58:33,175 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2023-11-06 22:58:33,180 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2023-11-06 22:58:33,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2023-11-06 22:58:33,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2023-11-06 22:58:33,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2023-11-06 22:58:33,181 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2023-11-06 22:58:33,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2023-11-06 22:58:33,182 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2023-11-06 22:58:33,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (20 of 38 remaining) [2023-11-06 22:58:33,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2023-11-06 22:58:33,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2023-11-06 22:58:33,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2023-11-06 22:58:33,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2023-11-06 22:58:33,183 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2023-11-06 22:58:33,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2023-11-06 22:58:33,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 38 remaining) [2023-11-06 22:58:33,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 38 remaining) [2023-11-06 22:58:33,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2023-11-06 22:58:33,184 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2023-11-06 22:58:33,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2023-11-06 22:58:33,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2023-11-06 22:58:33,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2023-11-06 22:58:33,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2023-11-06 22:58:33,185 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2023-11-06 22:58:33,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2023-11-06 22:58:33,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2023-11-06 22:58:33,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2023-11-06 22:58:33,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2023-11-06 22:58:33,186 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2023-11-06 22:58:33,186 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-06 22:58:33,187 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-06 22:58:33,194 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-06 22:58:33,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:58:33,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:58:33 BasicIcfg [2023-11-06 22:58:33,201 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:58:33,201 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:58:33,201 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:58:33,202 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:58:33,202 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:58:23" (3/4) ... [2023-11-06 22:58:33,204 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:58:33,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-06 22:58:33,208 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-06 22:58:33,216 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-11-06 22:58:33,216 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:58:33,217 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-06 22:58:33,217 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:58:33,294 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:58:33,294 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:58:33,294 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:58:33,295 INFO L158 Benchmark]: Toolchain (without parser) took 10545.05ms. Allocated memory was 121.6MB in the beginning and 205.5MB in the end (delta: 83.9MB). Free memory was 84.8MB in the beginning and 142.8MB in the end (delta: -58.1MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2023-11-06 22:58:33,296 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:33,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.53ms. Allocated memory is still 121.6MB. Free memory was 84.4MB in the beginning and 72.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:58:33,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.56ms. Allocated memory is still 121.6MB. Free memory was 72.9MB in the beginning and 70.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:58:33,297 INFO L158 Benchmark]: Boogie Preprocessor took 35.03ms. Allocated memory is still 121.6MB. Free memory was 70.5MB in the beginning and 69.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:58:33,297 INFO L158 Benchmark]: RCFGBuilder took 738.92ms. Allocated memory is still 121.6MB. Free memory was 69.0MB in the beginning and 47.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 22:58:33,297 INFO L158 Benchmark]: TraceAbstraction took 9264.25ms. Allocated memory was 121.6MB in the beginning and 205.5MB in the end (delta: 83.9MB). Free memory was 92.6MB in the beginning and 147.0MB in the end (delta: -54.5MB). Peak memory consumption was 110.5MB. Max. memory is 16.1GB. [2023-11-06 22:58:33,298 INFO L158 Benchmark]: Witness Printer took 93.23ms. Allocated memory is still 205.5MB. Free memory was 147.0MB in the beginning and 142.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:58:33,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 93.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.53ms. Allocated memory is still 121.6MB. Free memory was 84.4MB in the beginning and 72.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.56ms. Allocated memory is still 121.6MB. Free memory was 72.9MB in the beginning and 70.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.03ms. Allocated memory is still 121.6MB. Free memory was 70.5MB in the beginning and 69.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 738.92ms. Allocated memory is still 121.6MB. Free memory was 69.0MB in the beginning and 47.9MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 9264.25ms. Allocated memory was 121.6MB in the beginning and 205.5MB in the end (delta: 83.9MB). Free memory was 92.6MB in the beginning and 147.0MB in the end (delta: -54.5MB). Peak memory consumption was 110.5MB. Max. memory is 16.1GB. * Witness Printer took 93.23ms. Allocated memory is still 205.5MB. Free memory was 147.0MB in the beginning and 142.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.2s, 242 PlacesBefore, 60 PlacesAfterwards, 247 TransitionsBefore, 57 TransitionsAfterwards, 11160 CoEnabledTransitionPairs, 8 FixpointIterations, 115 TrivialSequentialCompositions, 99 ConcurrentSequentialCompositions, 14 TrivialYvCompositions, 27 ConcurrentYvCompositions, 8 ChoiceCompositions, 263 TotalNumberOfCompositions, 27399 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 15102, independent: 14558, independent conditional: 0, independent unconditional: 14558, dependent: 544, dependent conditional: 0, dependent unconditional: 544, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 6254, independent: 6203, independent conditional: 0, independent unconditional: 6203, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15102, independent: 8355, independent conditional: 0, independent unconditional: 8355, dependent: 493, dependent conditional: 0, dependent unconditional: 493, unknown: 6254, unknown conditional: 0, unknown unconditional: 6254] , Statistics on independence cache: Total cache size (in pairs): 390, Positive cache size: 361, Positive conditional cache size: 0, Positive unconditional cache size: 361, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 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: 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: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: 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: 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: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 70]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 71]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 376 locations, 38 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: 9.1s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 29 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 230 IncrementalHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 29 mSDtfsCounter, 230 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 24 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-06 22:58:33,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3fee6d7e-43bd-4ba1-a287-caccc8d4296e/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE