./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme --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 e74a9d887f2b5ed1ee32deb282db19752d3db312511ed38f97d9f22bdf2fecb9 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:43:44,129 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:43:44,259 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 11:43:44,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:43:44,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:43:44,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:43:44,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:43:44,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:43:44,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:43:44,317 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:43:44,318 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:43:44,318 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:43:44,319 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:43:44,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:43:44,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:43:44,322 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 11:43:44,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:43:44,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 11:43:44,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:43:44,324 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:43:44,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:43:44,325 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:43:44,326 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 11:43:44,326 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 11:43:44,327 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 11:43:44,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:43:44,328 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:43:44,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:43:44,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:43:44,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:43:44,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:44,332 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:43:44,332 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:43:44,332 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:43:44,333 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:43:44,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:43:44,333 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:43:44,334 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:43:44,334 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:43:44,334 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:43:44,335 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:43:44,335 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_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e74a9d887f2b5ed1ee32deb282db19752d3db312511ed38f97d9f22bdf2fecb9 [2023-11-26 11:43:44,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:43:44,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:43:44,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:43:44,731 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:43:44,732 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:43:44,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i [2023-11-26 11:43:47,908 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:43:48,199 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:43:48,200 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/sv-benchmarks/c/pthread-atomic/read_write_lock-1b.i [2023-11-26 11:43:48,230 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/data/53650f263/2e025eafba8142d9a5cd5f39d14d22b1/FLAG36eb5ada0 [2023-11-26 11:43:48,246 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/data/53650f263/2e025eafba8142d9a5cd5f39d14d22b1 [2023-11-26 11:43:48,249 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:43:48,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:43:48,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:48,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:43:48,261 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:43:48,262 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c2c40c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48, skipping insertion in model container [2023-11-26 11:43:48,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,314 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:43:48,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,709 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:43:48,760 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:43:48,812 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:43:48,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48 WrapperNode [2023-11-26 11:43:48,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:43:48,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:43:48,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:43:48,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,908 INFO L138 Inliner]: procedures = 171, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-26 11:43:48,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:43:48,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:43:48,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:43:48,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:43:48,922 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,928 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,966 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,969 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:43:48,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:43:48,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:43:48,976 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:43:48,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (1/1) ... [2023-11-26 11:43:48,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:43:49,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:43:49,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:43:49,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:43:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 11:43:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 11:43:49,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:43:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2023-11-26 11:43:49,081 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2023-11-26 11:43:49,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:43:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:43:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 11:43:49,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:43:49,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:43:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2023-11-26 11:43:49,083 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2023-11-26 11:43:49,085 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 11:43:49,328 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:43:49,331 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:43:49,889 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:43:49,963 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:43:49,964 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:43:49,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:49 BoogieIcfgContainer [2023-11-26 11:43:49,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:43:49,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:43:49,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:43:49,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:43:49,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:43:48" (1/3) ... [2023-11-26 11:43:49,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c55da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:49, skipping insertion in model container [2023-11-26 11:43:49,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:43:48" (2/3) ... [2023-11-26 11:43:49,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11c55da5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:43:49, skipping insertion in model container [2023-11-26 11:43:49,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:49" (3/3) ... [2023-11-26 11:43:49,975 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-1b.i [2023-11-26 11:43:49,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 11:43:49,995 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:43:49,996 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-26 11:43:49,996 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 11:43:50,079 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-26 11:43:50,122 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 211 places, 202 transitions, 432 flow [2023-11-26 11:43:50,264 INFO L124 PetriNetUnfolderBase]: 4/198 cut-off events. [2023-11-26 11:43:50,264 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-26 11:43:50,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 215 conditions, 198 events. 4/198 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 417 event pairs, 0 based on Foata normal form. 0/162 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2023-11-26 11:43:50,274 INFO L82 GeneralOperation]: Start removeDead. Operand has 211 places, 202 transitions, 432 flow [2023-11-26 11:43:50,284 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 193 places, 184 transitions, 389 flow [2023-11-26 11:43:50,302 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:43:50,317 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;@76aece1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:43:50,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 50 error locations. [2023-11-26 11:43:50,329 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 11:43:50,329 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2023-11-26 11:43:50,329 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 11:43:50,330 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:50,330 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] [2023-11-26 11:43:50,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writerErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:43:50,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:50,339 INFO L85 PathProgramCache]: Analyzing trace with hash -913127405, now seen corresponding path program 1 times [2023-11-26 11:43:50,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:50,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086998072] [2023-11-26 11:43:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:50,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:50,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:50,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:50,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:50,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086998072] [2023-11-26 11:43:50,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086998072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:50,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:50,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 11:43:50,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50105293] [2023-11-26 11:43:50,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:50,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 11:43:50,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:50,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 11:43:50,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 11:43:50,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 166 out of 202 [2023-11-26 11:43:50,648 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 184 transitions, 389 flow. Second operand has 2 states, 2 states have (on average 167.0) internal successors, (334), 2 states have internal predecessors, (334), 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) [2023-11-26 11:43:50,648 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:50,648 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 166 of 202 [2023-11-26 11:43:50,649 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:50,965 INFO L124 PetriNetUnfolderBase]: 119/1213 cut-off events. [2023-11-26 11:43:50,965 INFO L125 PetriNetUnfolderBase]: For 102/102 co-relation queries the response was YES. [2023-11-26 11:43:50,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1490 conditions, 1213 events. 119/1213 cut-off events. For 102/102 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 8511 event pairs, 119 based on Foata normal form. 56/1062 useless extension candidates. Maximal degree in co-relation 1297. Up to 203 conditions per place. [2023-11-26 11:43:50,989 INFO L140 encePairwiseOnDemand]: 182/202 looper letters, 13 selfloop transitions, 0 changer transitions 0/158 dead transitions. [2023-11-26 11:43:50,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 158 transitions, 363 flow [2023-11-26 11:43:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 11:43:50,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-26 11:43:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 365 transitions. [2023-11-26 11:43:51,006 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9034653465346535 [2023-11-26 11:43:51,007 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 365 transitions. [2023-11-26 11:43:51,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 365 transitions. [2023-11-26 11:43:51,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:51,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 365 transitions. [2023-11-26 11:43:51,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 182.5) internal successors, (365), 2 states have internal predecessors, (365), 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) [2023-11-26 11:43:51,021 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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) [2023-11-26 11:43:51,022 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 202.0) internal successors, (606), 3 states have internal predecessors, (606), 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) [2023-11-26 11:43:51,025 INFO L175 Difference]: Start difference. First operand has 193 places, 184 transitions, 389 flow. Second operand 2 states and 365 transitions. [2023-11-26 11:43:51,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 158 transitions, 363 flow [2023-11-26 11:43:51,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 158 transitions, 350 flow, removed 0 selfloop flow, removed 7 redundant places. [2023-11-26 11:43:51,036 INFO L231 Difference]: Finished difference. Result has 165 places, 158 transitions, 324 flow [2023-11-26 11:43:51,039 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=324, PETRI_PLACES=165, PETRI_TRANSITIONS=158} [2023-11-26 11:43:51,043 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -28 predicate places. [2023-11-26 11:43:51,044 INFO L495 AbstractCegarLoop]: Abstraction has has 165 places, 158 transitions, 324 flow [2023-11-26 11:43:51,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 167.0) internal successors, (334), 2 states have internal predecessors, (334), 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) [2023-11-26 11:43:51,045 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:51,045 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] [2023-11-26 11:43:51,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:43:51,045 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:43:51,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:51,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1257140456, now seen corresponding path program 1 times [2023-11-26 11:43:51,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:51,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39337827] [2023-11-26 11:43:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:51,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:51,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:51,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:51,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39337827] [2023-11-26 11:43:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39337827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:51,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:51,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:51,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617363148] [2023-11-26 11:43:51,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:51,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:51,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:51,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:51,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:51,217 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 202 [2023-11-26 11:43:51,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 158 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2023-11-26 11:43:51,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:51,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 202 [2023-11-26 11:43:51,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:52,600 INFO L124 PetriNetUnfolderBase]: 1931/6686 cut-off events. [2023-11-26 11:43:52,601 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2023-11-26 11:43:52,649 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9826 conditions, 6686 events. 1931/6686 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 68546 event pairs, 1220 based on Foata normal form. 0/5529 useless extension candidates. Maximal degree in co-relation 9823. Up to 2335 conditions per place. [2023-11-26 11:43:52,712 INFO L140 encePairwiseOnDemand]: 193/202 looper letters, 30 selfloop transitions, 8 changer transitions 0/173 dead transitions. [2023-11-26 11:43:52,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 173 transitions, 434 flow [2023-11-26 11:43:52,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:52,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2023-11-26 11:43:52,716 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8366336633663366 [2023-11-26 11:43:52,717 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2023-11-26 11:43:52,717 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2023-11-26 11:43:52,717 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:52,717 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2023-11-26 11:43:52,720 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2023-11-26 11:43:52,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:43:52,723 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:43:52,723 INFO L175 Difference]: Start difference. First operand has 165 places, 158 transitions, 324 flow. Second operand 3 states and 507 transitions. [2023-11-26 11:43:52,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 173 transitions, 434 flow [2023-11-26 11:43:52,725 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 173 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 11:43:52,729 INFO L231 Difference]: Finished difference. Result has 169 places, 165 transitions, 386 flow [2023-11-26 11:43:52,730 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=324, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=386, PETRI_PLACES=169, PETRI_TRANSITIONS=165} [2023-11-26 11:43:52,731 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -24 predicate places. [2023-11-26 11:43:52,731 INFO L495 AbstractCegarLoop]: Abstraction has has 169 places, 165 transitions, 386 flow [2023-11-26 11:43:52,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2023-11-26 11:43:52,732 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:52,732 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] [2023-11-26 11:43:52,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:43:52,732 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:43:52,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:52,733 INFO L85 PathProgramCache]: Analyzing trace with hash 439175046, now seen corresponding path program 1 times [2023-11-26 11:43:52,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:52,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737946663] [2023-11-26 11:43:52,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:52,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:52,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:52,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737946663] [2023-11-26 11:43:52,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737946663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:52,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:52,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:52,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562107312] [2023-11-26 11:43:52,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:52,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:52,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:52,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:52,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:52,828 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 160 out of 202 [2023-11-26 11:43:52,829 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 165 transitions, 386 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2023-11-26 11:43:52,829 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:52,829 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 160 of 202 [2023-11-26 11:43:52,829 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:43:54,315 INFO L124 PetriNetUnfolderBase]: 1791/7827 cut-off events. [2023-11-26 11:43:54,316 INFO L125 PetriNetUnfolderBase]: For 252/290 co-relation queries the response was YES. [2023-11-26 11:43:54,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11429 conditions, 7827 events. 1791/7827 cut-off events. For 252/290 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 87208 event pairs, 1183 based on Foata normal form. 0/6204 useless extension candidates. Maximal degree in co-relation 11424. Up to 1612 conditions per place. [2023-11-26 11:43:54,455 INFO L140 encePairwiseOnDemand]: 194/202 looper letters, 23 selfloop transitions, 7 changer transitions 0/176 dead transitions. [2023-11-26 11:43:54,455 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 176 transitions, 472 flow [2023-11-26 11:43:54,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:43:54,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:43:54,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 511 transitions. [2023-11-26 11:43:54,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8432343234323433 [2023-11-26 11:43:54,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 511 transitions. [2023-11-26 11:43:54,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 511 transitions. [2023-11-26 11:43:54,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:43:54,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 511 transitions. [2023-11-26 11:43:54,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 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) [2023-11-26 11:43:54,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:43:54,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:43:54,466 INFO L175 Difference]: Start difference. First operand has 169 places, 165 transitions, 386 flow. Second operand 3 states and 511 transitions. [2023-11-26 11:43:54,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 176 transitions, 472 flow [2023-11-26 11:43:54,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 176 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:43:54,484 INFO L231 Difference]: Finished difference. Result has 171 places, 171 transitions, 424 flow [2023-11-26 11:43:54,484 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=424, PETRI_PLACES=171, PETRI_TRANSITIONS=171} [2023-11-26 11:43:54,486 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -22 predicate places. [2023-11-26 11:43:54,486 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 171 transitions, 424 flow [2023-11-26 11:43:54,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 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) [2023-11-26 11:43:54,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:43:54,489 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] [2023-11-26 11:43:54,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:43:54,489 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:43:54,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:43:54,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2144543002, now seen corresponding path program 1 times [2023-11-26 11:43:54,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:43:54,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232499499] [2023-11-26 11:43:54,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:43:54,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:43:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:43:54,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:43:54,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:43:54,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232499499] [2023-11-26 11:43:54,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232499499] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:43:54,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:43:54,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:43:54,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042537450] [2023-11-26 11:43:54,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:43:54,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:43:54,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:43:54,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:43:54,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:43:54,631 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 202 [2023-11-26 11:43:54,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 171 transitions, 424 flow. Second operand has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2023-11-26 11:43:54,633 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:43:54,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 202 [2023-11-26 11:43:54,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:00,075 INFO L124 PetriNetUnfolderBase]: 9825/33479 cut-off events. [2023-11-26 11:44:00,076 INFO L125 PetriNetUnfolderBase]: For 8793/9853 co-relation queries the response was YES. [2023-11-26 11:44:00,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59485 conditions, 33479 events. 9825/33479 cut-off events. For 8793/9853 co-relation queries the response was YES. Maximal size of possible extension queue 1407. Compared 453399 event pairs, 3245 based on Foata normal form. 50/27716 useless extension candidates. Maximal degree in co-relation 59479. Up to 8588 conditions per place. [2023-11-26 11:44:00,721 INFO L140 encePairwiseOnDemand]: 188/202 looper letters, 49 selfloop transitions, 15 changer transitions 0/200 dead transitions. [2023-11-26 11:44:00,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 173 places, 200 transitions, 656 flow [2023-11-26 11:44:00,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:00,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2023-11-26 11:44:00,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8382838283828383 [2023-11-26 11:44:00,724 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 508 transitions. [2023-11-26 11:44:00,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 508 transitions. [2023-11-26 11:44:00,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:00,725 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 508 transitions. [2023-11-26 11:44:00,727 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 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) [2023-11-26 11:44:00,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:00,731 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:00,731 INFO L175 Difference]: Start difference. First operand has 171 places, 171 transitions, 424 flow. Second operand 3 states and 508 transitions. [2023-11-26 11:44:00,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 173 places, 200 transitions, 656 flow [2023-11-26 11:44:00,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 200 transitions, 636 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:00,795 INFO L231 Difference]: Finished difference. Result has 173 places, 186 transitions, 560 flow [2023-11-26 11:44:00,796 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=173, PETRI_TRANSITIONS=186} [2023-11-26 11:44:00,797 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -20 predicate places. [2023-11-26 11:44:00,798 INFO L495 AbstractCegarLoop]: Abstraction has has 173 places, 186 transitions, 560 flow [2023-11-26 11:44:00,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.66666666666666) internal successors, (461), 3 states have internal predecessors, (461), 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) [2023-11-26 11:44:00,799 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:00,799 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] [2023-11-26 11:44:00,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:44:00,800 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:44:00,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:00,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1299030458, now seen corresponding path program 1 times [2023-11-26 11:44:00,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:00,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803817013] [2023-11-26 11:44:00,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:00,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:01,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:01,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803817013] [2023-11-26 11:44:01,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803817013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:01,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:01,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 11:44:01,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092372571] [2023-11-26 11:44:01,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:01,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 11:44:01,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:01,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 11:44:01,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:44:01,094 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 202 [2023-11-26 11:44:01,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 186 transitions, 560 flow. Second operand has 5 states, 5 states have (on average 163.2) internal successors, (816), 5 states have internal predecessors, (816), 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) [2023-11-26 11:44:01,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:01,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 202 [2023-11-26 11:44:01,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:07,122 INFO L124 PetriNetUnfolderBase]: 11514/45878 cut-off events. [2023-11-26 11:44:07,123 INFO L125 PetriNetUnfolderBase]: For 14263/17962 co-relation queries the response was YES. [2023-11-26 11:44:07,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81654 conditions, 45878 events. 11514/45878 cut-off events. For 14263/17962 co-relation queries the response was YES. Maximal size of possible extension queue 1966. Compared 681045 event pairs, 2699 based on Foata normal form. 83/38408 useless extension candidates. Maximal degree in co-relation 81647. Up to 7583 conditions per place. [2023-11-26 11:44:07,834 INFO L140 encePairwiseOnDemand]: 192/202 looper letters, 31 selfloop transitions, 17 changer transitions 0/214 dead transitions. [2023-11-26 11:44:07,834 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 214 transitions, 745 flow [2023-11-26 11:44:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:44:07,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-26 11:44:07,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 855 transitions. [2023-11-26 11:44:07,841 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8465346534653465 [2023-11-26 11:44:07,848 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 855 transitions. [2023-11-26 11:44:07,848 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 855 transitions. [2023-11-26 11:44:07,849 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:07,849 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 855 transitions. [2023-11-26 11:44:07,852 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 171.0) internal successors, (855), 5 states have internal predecessors, (855), 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) [2023-11-26 11:44:07,855 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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) [2023-11-26 11:44:07,857 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 202.0) internal successors, (1212), 6 states have internal predecessors, (1212), 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) [2023-11-26 11:44:07,857 INFO L175 Difference]: Start difference. First operand has 173 places, 186 transitions, 560 flow. Second operand 5 states and 855 transitions. [2023-11-26 11:44:07,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 214 transitions, 745 flow [2023-11-26 11:44:07,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 214 transitions, 715 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:07,899 INFO L231 Difference]: Finished difference. Result has 178 places, 200 transitions, 653 flow [2023-11-26 11:44:07,900 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=653, PETRI_PLACES=178, PETRI_TRANSITIONS=200} [2023-11-26 11:44:07,905 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -15 predicate places. [2023-11-26 11:44:07,905 INFO L495 AbstractCegarLoop]: Abstraction has has 178 places, 200 transitions, 653 flow [2023-11-26 11:44:07,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 163.2) internal successors, (816), 5 states have internal predecessors, (816), 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) [2023-11-26 11:44:07,906 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:07,907 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] [2023-11-26 11:44:07,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 11:44:07,908 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:44:07,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:07,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1149257918, now seen corresponding path program 2 times [2023-11-26 11:44:07,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:07,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524445764] [2023-11-26 11:44:07,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:07,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:08,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:08,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524445764] [2023-11-26 11:44:08,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524445764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:08,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:08,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 11:44:08,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102253263] [2023-11-26 11:44:08,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:08,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:08,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:08,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:08,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:08,212 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 202 [2023-11-26 11:44:08,213 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 200 transitions, 653 flow. Second operand has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-11-26 11:44:08,213 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:08,213 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 202 [2023-11-26 11:44:08,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:10,305 INFO L124 PetriNetUnfolderBase]: 3291/16998 cut-off events. [2023-11-26 11:44:10,306 INFO L125 PetriNetUnfolderBase]: For 6075/7066 co-relation queries the response was YES. [2023-11-26 11:44:10,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30274 conditions, 16998 events. 3291/16998 cut-off events. For 6075/7066 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 229505 event pairs, 1025 based on Foata normal form. 196/14332 useless extension candidates. Maximal degree in co-relation 30265. Up to 2630 conditions per place. [2023-11-26 11:44:10,754 INFO L140 encePairwiseOnDemand]: 196/202 looper letters, 25 selfloop transitions, 7 changer transitions 0/197 dead transitions. [2023-11-26 11:44:10,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 197 transitions, 683 flow [2023-11-26 11:44:10,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:10,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:10,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2023-11-26 11:44:10,757 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8514851485148515 [2023-11-26 11:44:10,757 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 516 transitions. [2023-11-26 11:44:10,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 516 transitions. [2023-11-26 11:44:10,758 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:10,758 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 516 transitions. [2023-11-26 11:44:10,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 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) [2023-11-26 11:44:10,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:10,764 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:10,764 INFO L175 Difference]: Start difference. First operand has 178 places, 200 transitions, 653 flow. Second operand 3 states and 516 transitions. [2023-11-26 11:44:10,764 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 197 transitions, 683 flow [2023-11-26 11:44:10,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 197 transitions, 669 flow, removed 3 selfloop flow, removed 1 redundant places. [2023-11-26 11:44:10,777 INFO L231 Difference]: Finished difference. Result has 179 places, 190 transitions, 595 flow [2023-11-26 11:44:10,778 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=595, PETRI_PLACES=179, PETRI_TRANSITIONS=190} [2023-11-26 11:44:10,781 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -14 predicate places. [2023-11-26 11:44:10,782 INFO L495 AbstractCegarLoop]: Abstraction has has 179 places, 190 transitions, 595 flow [2023-11-26 11:44:10,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.66666666666666) internal successors, (494), 3 states have internal predecessors, (494), 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) [2023-11-26 11:44:10,782 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:10,783 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] [2023-11-26 11:44:10,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-26 11:44:10,783 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:44:10,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:10,785 INFO L85 PathProgramCache]: Analyzing trace with hash 841656943, now seen corresponding path program 1 times [2023-11-26 11:44:10,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:10,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606987985] [2023-11-26 11:44:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:10,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:10,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:10,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:10,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606987985] [2023-11-26 11:44:10,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606987985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:10,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:10,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:10,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85233048] [2023-11-26 11:44:10,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:10,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:10,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:10,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:10,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:10,897 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 202 [2023-11-26 11:44:10,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 190 transitions, 595 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-11-26 11:44:10,900 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:10,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 202 [2023-11-26 11:44:10,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:14,547 INFO L124 PetriNetUnfolderBase]: 6705/29239 cut-off events. [2023-11-26 11:44:14,547 INFO L125 PetriNetUnfolderBase]: For 15393/16583 co-relation queries the response was YES. [2023-11-26 11:44:14,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54856 conditions, 29239 events. 6705/29239 cut-off events. For 15393/16583 co-relation queries the response was YES. Maximal size of possible extension queue 1354. Compared 420797 event pairs, 2681 based on Foata normal form. 2/23975 useless extension candidates. Maximal degree in co-relation 54847. Up to 5408 conditions per place. [2023-11-26 11:44:14,960 INFO L140 encePairwiseOnDemand]: 196/202 looper letters, 39 selfloop transitions, 5 changer transitions 0/204 dead transitions. [2023-11-26 11:44:14,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 181 places, 204 transitions, 746 flow [2023-11-26 11:44:14,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:14,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 507 transitions. [2023-11-26 11:44:14,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8366336633663366 [2023-11-26 11:44:14,963 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 507 transitions. [2023-11-26 11:44:14,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 507 transitions. [2023-11-26 11:44:14,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:14,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 507 transitions. [2023-11-26 11:44:14,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.0) internal successors, (507), 3 states have internal predecessors, (507), 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) [2023-11-26 11:44:14,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:14,969 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:14,970 INFO L175 Difference]: Start difference. First operand has 179 places, 190 transitions, 595 flow. Second operand 3 states and 507 transitions. [2023-11-26 11:44:14,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 181 places, 204 transitions, 746 flow [2023-11-26 11:44:14,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 204 transitions, 726 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:14,995 INFO L231 Difference]: Finished difference. Result has 181 places, 194 transitions, 619 flow [2023-11-26 11:44:14,996 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=581, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=619, PETRI_PLACES=181, PETRI_TRANSITIONS=194} [2023-11-26 11:44:14,997 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -12 predicate places. [2023-11-26 11:44:14,997 INFO L495 AbstractCegarLoop]: Abstraction has has 181 places, 194 transitions, 619 flow [2023-11-26 11:44:14,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-11-26 11:44:14,998 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:14,998 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] [2023-11-26 11:44:14,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 11:44:14,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting writerErr3ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:44:14,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:14,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1638355281, now seen corresponding path program 1 times [2023-11-26 11:44:14,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:14,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076422045] [2023-11-26 11:44:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:15,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:15,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:15,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:15,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076422045] [2023-11-26 11:44:15,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076422045] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:15,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:15,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:15,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002809424] [2023-11-26 11:44:15,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:15,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:15,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:15,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:15,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:15,081 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 202 [2023-11-26 11:44:15,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 194 transitions, 619 flow. Second operand has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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) [2023-11-26 11:44:15,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:15,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 202 [2023-11-26 11:44:15,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:19,725 INFO L124 PetriNetUnfolderBase]: 9120/35933 cut-off events. [2023-11-26 11:44:19,725 INFO L125 PetriNetUnfolderBase]: For 22170/28422 co-relation queries the response was YES. [2023-11-26 11:44:20,004 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73016 conditions, 35933 events. 9120/35933 cut-off events. For 22170/28422 co-relation queries the response was YES. Maximal size of possible extension queue 1766. Compared 523935 event pairs, 3425 based on Foata normal form. 117/30039 useless extension candidates. Maximal degree in co-relation 73006. Up to 9634 conditions per place. [2023-11-26 11:44:20,191 INFO L140 encePairwiseOnDemand]: 194/202 looper letters, 49 selfloop transitions, 12 changer transitions 0/209 dead transitions. [2023-11-26 11:44:20,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 209 transitions, 811 flow [2023-11-26 11:44:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:20,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 503 transitions. [2023-11-26 11:44:20,194 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.83003300330033 [2023-11-26 11:44:20,195 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 503 transitions. [2023-11-26 11:44:20,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 503 transitions. [2023-11-26 11:44:20,196 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:20,196 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 503 transitions. [2023-11-26 11:44:20,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 167.66666666666666) internal successors, (503), 3 states have internal predecessors, (503), 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) [2023-11-26 11:44:20,200 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:20,201 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:20,201 INFO L175 Difference]: Start difference. First operand has 181 places, 194 transitions, 619 flow. Second operand 3 states and 503 transitions. [2023-11-26 11:44:20,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 209 transitions, 811 flow [2023-11-26 11:44:20,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 209 transitions, 801 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:20,300 INFO L231 Difference]: Finished difference. Result has 183 places, 204 transitions, 731 flow [2023-11-26 11:44:20,300 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=609, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=731, PETRI_PLACES=183, PETRI_TRANSITIONS=204} [2023-11-26 11:44:20,301 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -10 predicate places. [2023-11-26 11:44:20,302 INFO L495 AbstractCegarLoop]: Abstraction has has 183 places, 204 transitions, 731 flow [2023-11-26 11:44:20,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 158.33333333333334) internal successors, (475), 3 states have internal predecessors, (475), 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) [2023-11-26 11:44:20,302 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:20,302 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] [2023-11-26 11:44:20,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-26 11:44:20,303 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr5ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:44:20,303 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:20,303 INFO L85 PathProgramCache]: Analyzing trace with hash -216616405, now seen corresponding path program 1 times [2023-11-26 11:44:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:20,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719686788] [2023-11-26 11:44:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:44:20,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 11:44:20,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:44:20,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719686788] [2023-11-26 11:44:20,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719686788] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:44:20,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:44:20,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 11:44:20,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101822414] [2023-11-26 11:44:20,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:44:20,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 11:44:20,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:44:20,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 11:44:20,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 11:44:20,386 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 202 [2023-11-26 11:44:20,387 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 204 transitions, 731 flow. Second operand has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-11-26 11:44:20,387 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 11:44:20,387 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 202 [2023-11-26 11:44:20,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 11:44:23,411 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([468] L708-->L708-1: Formula: (and (not (= (ite (= v_~w~0_56 0) 1 0) 0)) (= v_~r~0_67 (+ v_~r~0_68 1)) (= |v_#race~w~0_77| 0)) InVars {~w~0=v_~w~0_56, ~r~0=v_~r~0_68} OutVars{~w~0=v_~w~0_56, readerThread1of1ForFork1_assume_abort_if_not_#in~cond#1=|v_readerThread1of1ForFork1_assume_abort_if_not_#in~cond#1_5|, #race~r~0=|v_#race~r~0_104|, readerThread1of1ForFork1_assume_abort_if_not_~cond#1=|v_readerThread1of1ForFork1_assume_abort_if_not_~cond#1_5|, readerThread1of1ForFork1___VERIFIER_atomic_take_read_lock_#t~nondet5#1=|v_readerThread1of1ForFork1___VERIFIER_atomic_take_read_lock_#t~nondet5#1_7|, #race~w~0=|v_#race~w~0_77|, ~r~0=v_~r~0_67} AuxVars[] AssignedVars[readerThread1of1ForFork1_assume_abort_if_not_#in~cond#1, #race~r~0, readerThread1of1ForFork1_assume_abort_if_not_~cond#1, readerThread1of1ForFork1___VERIFIER_atomic_take_read_lock_#t~nondet5#1, #race~w~0, ~r~0][141], [Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), 148#L708-1true, Black: 229#true, 36#L720-4true, 117#L703-1true, 254#true, 237#(= ~w~0 0), 214#true, Black: 235#true, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), readerThread1of1ForFork1InUse, 27#L712true, Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 19#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|), Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|)]) [2023-11-26 11:44:23,412 INFO L294 olderBase$Statistics]: this new event has 77 ancestors and is not cut-off event [2023-11-26 11:44:23,412 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is not cut-off event [2023-11-26 11:44:23,412 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is not cut-off event [2023-11-26 11:44:23,412 INFO L297 olderBase$Statistics]: existing Event has 77 ancestors and is not cut-off event [2023-11-26 11:44:23,917 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][197], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 117#L703-1true, 214#true, 115#L702-3true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|)]) [2023-11-26 11:44:23,917 INFO L294 olderBase$Statistics]: this new event has 81 ancestors and is cut-off event [2023-11-26 11:44:23,917 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2023-11-26 11:44:23,917 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2023-11-26 11:44:23,918 INFO L297 olderBase$Statistics]: existing Event has 81 ancestors and is cut-off event [2023-11-26 11:44:24,274 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 173#L703true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|), 121#L703-1true]) [2023-11-26 11:44:24,275 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,275 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,275 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,275 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,297 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 117#L703-1true, 155#L703true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|)]) [2023-11-26 11:44:24,297 INFO L294 olderBase$Statistics]: this new event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,297 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,297 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,297 INFO L297 olderBase$Statistics]: existing Event has 82 ancestors and is cut-off event [2023-11-26 11:44:24,627 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][197], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 214#true, 115#L702-3true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|), 126#L703-3true]) [2023-11-26 11:44:24,628 INFO L294 olderBase$Statistics]: this new event has 83 ancestors and is cut-off event [2023-11-26 11:44:24,628 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2023-11-26 11:44:24,628 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2023-11-26 11:44:24,628 INFO L297 olderBase$Statistics]: existing Event has 83 ancestors and is cut-off event [2023-11-26 11:44:24,707 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][196], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, 13#L702-3true, 19#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|)]) [2023-11-26 11:44:24,708 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,708 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,708 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,708 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,844 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 173#L703true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 61#L703-3true, 39#L711-4true, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|)]) [2023-11-26 11:44:24,844 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,844 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,844 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,844 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,899 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 155#L703true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, 126#L703-3true, Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|), Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|)]) [2023-11-26 11:44:24,899 INFO L294 olderBase$Statistics]: this new event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,900 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,900 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,900 INFO L297 olderBase$Statistics]: existing Event has 84 ancestors and is cut-off event [2023-11-26 11:44:24,959 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 173#L703true, 214#true, 116#L703-4true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|), Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|)]) [2023-11-26 11:44:24,960 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,960 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,960 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,960 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,984 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 173#L703true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, 19#writerErr4ASSERT_VIOLATIONDATA_RACEtrue, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|)]) [2023-11-26 11:44:24,984 INFO L294 olderBase$Statistics]: this new event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,984 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,984 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2023-11-26 11:44:24,984 INFO L297 olderBase$Statistics]: existing Event has 85 ancestors and is cut-off event [2023-11-26 11:44:25,067 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), Black: 229#true, 36#L720-4true, 254#true, 173#L703true, 214#true, readerThread1of1ForFork1InUse, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, 180#L704true, Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|), Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|)]) [2023-11-26 11:44:25,067 INFO L294 olderBase$Statistics]: this new event has 86 ancestors and is cut-off event [2023-11-26 11:44:25,068 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2023-11-26 11:44:25,068 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2023-11-26 11:44:25,068 INFO L297 olderBase$Statistics]: existing Event has 86 ancestors and is cut-off event [2023-11-26 11:44:26,003 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([482] L711-2-->L711-3: Formula: (= |v_#race~x~0_4| 0) InVars {} OutVars{#race~x~0=|v_#race~x~0_4|} AuxVars[] AssignedVars[#race~x~0][144], [75#L711-3true, Black: 225#(= |writerThread1of1ForFork0_#t~nondet8#1| |#race~w~0|), Black: 256#(= |writerThread1of1ForFork3_#t~nondet7#1| |#race~x~0|), 262#(= |#race~y~0| 0), 84#L721-7true, Black: 229#true, 254#true, 173#L703true, 214#true, Black: 238#(and (= ~r~0 0) (= ~w~0 0)), readerThread1of1ForFork1InUse, Black: 239#(and (<= 1 ~r~0) (= ~w~0 0)), 39#L711-4true, Black: 250#(= |#race~y~0| |readerThread1of1ForFork2_#t~nondet9#1|), Black: 219#(= |writerThread1of1ForFork0_#t~nondet7#1| |#race~x~0|)]) [2023-11-26 11:44:26,003 INFO L294 olderBase$Statistics]: this new event has 97 ancestors and is cut-off event [2023-11-26 11:44:26,003 INFO L297 olderBase$Statistics]: existing Event has 97 ancestors and is cut-off event [2023-11-26 11:44:26,004 INFO L297 olderBase$Statistics]: existing Event has 97 ancestors and is cut-off event [2023-11-26 11:44:26,004 INFO L297 olderBase$Statistics]: existing Event has 97 ancestors and is cut-off event [2023-11-26 11:44:26,267 INFO L124 PetriNetUnfolderBase]: 10547/44448 cut-off events. [2023-11-26 11:44:26,268 INFO L125 PetriNetUnfolderBase]: For 33562/36891 co-relation queries the response was YES. [2023-11-26 11:44:26,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 94293 conditions, 44448 events. 10547/44448 cut-off events. For 33562/36891 co-relation queries the response was YES. Maximal size of possible extension queue 2311. Compared 681258 event pairs, 2278 based on Foata normal form. 254/38394 useless extension candidates. Maximal degree in co-relation 94282. Up to 7854 conditions per place. [2023-11-26 11:44:26,840 INFO L140 encePairwiseOnDemand]: 194/202 looper letters, 47 selfloop transitions, 7 changer transitions 0/226 dead transitions. [2023-11-26 11:44:26,840 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 226 transitions, 935 flow [2023-11-26 11:44:26,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 11:44:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 11:44:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 514 transitions. [2023-11-26 11:44:26,843 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8481848184818482 [2023-11-26 11:44:26,843 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 514 transitions. [2023-11-26 11:44:26,843 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 514 transitions. [2023-11-26 11:44:26,844 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 11:44:26,844 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 514 transitions. [2023-11-26 11:44:26,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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) [2023-11-26 11:44:26,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:26,848 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 202.0) internal successors, (808), 4 states have internal predecessors, (808), 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) [2023-11-26 11:44:26,848 INFO L175 Difference]: Start difference. First operand has 183 places, 204 transitions, 731 flow. Second operand 3 states and 514 transitions. [2023-11-26 11:44:26,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 226 transitions, 935 flow [2023-11-26 11:44:26,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 226 transitions, 895 flow, removed 8 selfloop flow, removed 2 redundant places. [2023-11-26 11:44:26,933 INFO L231 Difference]: Finished difference. Result has 185 places, 210 transitions, 753 flow [2023-11-26 11:44:26,934 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=691, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=753, PETRI_PLACES=185, PETRI_TRANSITIONS=210} [2023-11-26 11:44:26,934 INFO L281 CegarLoopForPetriNet]: 193 programPoint places, -8 predicate places. [2023-11-26 11:44:26,935 INFO L495 AbstractCegarLoop]: Abstraction has has 185 places, 210 transitions, 753 flow [2023-11-26 11:44:26,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 160.0) internal successors, (480), 3 states have internal predecessors, (480), 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) [2023-11-26 11:44:26,935 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 11:44:26,936 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] [2023-11-26 11:44:26,936 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 11:44:26,936 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting writerErr4ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-26 11:44:26,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:44:26,937 INFO L85 PathProgramCache]: Analyzing trace with hash -368483643, now seen corresponding path program 1 times [2023-11-26 11:44:26,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:44:26,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002976556] [2023-11-26 11:44:26,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:44:26,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:44:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:44:26,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 11:44:26,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 11:44:27,003 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 11:44:27,004 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 11:44:27,005 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location writerErr4ASSERT_VIOLATIONDATA_RACE (49 of 50 remaining) [2023-11-26 11:44:27,007 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (48 of 50 remaining) [2023-11-26 11:44:27,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (47 of 50 remaining) [2023-11-26 11:44:27,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (46 of 50 remaining) [2023-11-26 11:44:27,008 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (45 of 50 remaining) [2023-11-26 11:44:27,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (44 of 50 remaining) [2023-11-26 11:44:27,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (43 of 50 remaining) [2023-11-26 11:44:27,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (42 of 50 remaining) [2023-11-26 11:44:27,009 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (41 of 50 remaining) [2023-11-26 11:44:27,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (40 of 50 remaining) [2023-11-26 11:44:27,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (39 of 50 remaining) [2023-11-26 11:44:27,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (38 of 50 remaining) [2023-11-26 11:44:27,010 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (37 of 50 remaining) [2023-11-26 11:44:27,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (36 of 50 remaining) [2023-11-26 11:44:27,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (35 of 50 remaining) [2023-11-26 11:44:27,011 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (34 of 50 remaining) [2023-11-26 11:44:27,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (33 of 50 remaining) [2023-11-26 11:44:27,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 50 remaining) [2023-11-26 11:44:27,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (31 of 50 remaining) [2023-11-26 11:44:27,012 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (30 of 50 remaining) [2023-11-26 11:44:27,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (29 of 50 remaining) [2023-11-26 11:44:27,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (28 of 50 remaining) [2023-11-26 11:44:27,013 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (27 of 50 remaining) [2023-11-26 11:44:27,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (26 of 50 remaining) [2023-11-26 11:44:27,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (25 of 50 remaining) [2023-11-26 11:44:27,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (24 of 50 remaining) [2023-11-26 11:44:27,014 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (23 of 50 remaining) [2023-11-26 11:44:27,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (22 of 50 remaining) [2023-11-26 11:44:27,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (21 of 50 remaining) [2023-11-26 11:44:27,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (20 of 50 remaining) [2023-11-26 11:44:27,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (19 of 50 remaining) [2023-11-26 11:44:27,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (18 of 50 remaining) [2023-11-26 11:44:27,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (17 of 50 remaining) [2023-11-26 11:44:27,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (16 of 50 remaining) [2023-11-26 11:44:27,016 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (15 of 50 remaining) [2023-11-26 11:44:27,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (14 of 50 remaining) [2023-11-26 11:44:27,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (13 of 50 remaining) [2023-11-26 11:44:27,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (12 of 50 remaining) [2023-11-26 11:44:27,017 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (11 of 50 remaining) [2023-11-26 11:44:27,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (10 of 50 remaining) [2023-11-26 11:44:27,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8ASSERT_VIOLATIONDATA_RACE (9 of 50 remaining) [2023-11-26 11:44:27,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (8 of 50 remaining) [2023-11-26 11:44:27,018 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (7 of 50 remaining) [2023-11-26 11:44:27,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (6 of 50 remaining) [2023-11-26 11:44:27,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (5 of 50 remaining) [2023-11-26 11:44:27,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (4 of 50 remaining) [2023-11-26 11:44:27,019 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (3 of 50 remaining) [2023-11-26 11:44:27,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 50 remaining) [2023-11-26 11:44:27,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (1 of 50 remaining) [2023-11-26 11:44:27,020 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (0 of 50 remaining) [2023-11-26 11:44:27,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 11:44:27,021 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:44:27,028 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 11:44:27,029 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 11:44:27,072 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-26 11:44:27,076 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-26 11:44:27,077 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 11:44:27,078 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 11:44:27,088 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 11:44:27 BasicIcfg [2023-11-26 11:44:27,089 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 11:44:27,090 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 11:44:27,090 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 11:44:27,090 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 11:44:27,091 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:43:49" (3/4) ... [2023-11-26 11:44:27,093 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 11:44:27,094 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 11:44:27,095 INFO L158 Benchmark]: Toolchain (without parser) took 38844.51ms. Allocated memory was 130.0MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 87.1MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-11-26 11:44:27,095 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory was 101.6MB in the beginning and 101.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:44:27,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.29ms. Allocated memory is still 130.0MB. Free memory was 87.1MB in the beginning and 66.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 11:44:27,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.65ms. Allocated memory is still 130.0MB. Free memory was 66.7MB in the beginning and 64.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 11:44:27,099 INFO L158 Benchmark]: Boogie Preprocessor took 65.54ms. Allocated memory is still 130.0MB. Free memory was 64.0MB in the beginning and 62.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 11:44:27,103 INFO L158 Benchmark]: RCFGBuilder took 990.25ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 62.3MB in the beginning and 138.9MB in the end (delta: -76.6MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2023-11-26 11:44:27,103 INFO L158 Benchmark]: TraceAbstraction took 37120.52ms. Allocated memory was 180.4MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 138.7MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. [2023-11-26 11:44:27,104 INFO L158 Benchmark]: Witness Printer took 4.49ms. Allocated memory is still 13.1GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 11:44:27,107 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory was 101.6MB in the beginning and 101.5MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.29ms. Allocated memory is still 130.0MB. Free memory was 87.1MB in the beginning and 66.7MB in the end (delta: 20.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.65ms. Allocated memory is still 130.0MB. Free memory was 66.7MB in the beginning and 64.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.54ms. Allocated memory is still 130.0MB. Free memory was 64.0MB in the beginning and 62.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 990.25ms. Allocated memory was 130.0MB in the beginning and 180.4MB in the end (delta: 50.3MB). Free memory was 62.3MB in the beginning and 138.9MB in the end (delta: -76.6MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. * TraceAbstraction took 37120.52ms. Allocated memory was 180.4MB in the beginning and 13.1GB in the end (delta: 12.9GB). Free memory was 138.7MB in the beginning and 11.2GB in the end (delta: -11.1GB). Peak memory consumption was 1.8GB. Max. memory is 16.1GB. * Witness Printer took 4.49ms. Allocated memory is still 13.1GB. Free memory was 11.2GB in the beginning and 11.2GB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 703]: Data race detected [2023-11-26 11:44:27,152 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-26 11:44:27,153 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-26 11:44:27,159 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 11:44:27,160 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 11:44:27,192 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre10 could not be translated [2023-11-26 11:44:27,193 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre12 could not be translated [2023-11-26 11:44:27,194 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-26 11:44:27,196 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated Data race detected The following path leads to a data race: [L688] 0 int w=0, r=0, x, y; VAL [r=0, w=0, x=0, y=0] [L716] 0 pthread_t t1, t2, t3, t4; VAL [r=0, t1={5:0}, t2={6:0}, t3={7:0}, t4={3:0}, w=0, x=0, y=0] [L717] FCALL, FORK 0 pthread_create(&t1, 0, writer, 0) VAL [r=0, t1={5:0}, t2={6:0}, t3={7:0}, t4={3:0}, w=0, x=0, y=0] [L718] FCALL, FORK 0 pthread_create(&t2, 0, reader, 0) VAL [r=0, t1={5:0}, t2={6:0}, t3={7:0}, t4={3:0}, w=0, x=0, y=0] [L707] 2 int l; VAL [arg={0:0}, arg={0:0}, r=0, w=0, x=0, y=0] [L701] CALL 1 __VERIFIER_atomic_take_write_lock() [L690] EXPR 1 w==0 [L690] EXPR 1 w==0 && r==0 [L690] EXPR 1 r==0 [L690] EXPR 1 w==0 && r==0 [L690] CALL 1 assume_abort_if_not(w==0 && r==0) [L3] COND FALSE 1 !(!cond) [L690] RET 1 assume_abort_if_not(w==0 && r==0) [L691] 1 w = 1 [L701] RET 1 __VERIFIER_atomic_take_write_lock() [L702] 1 x = 3 VAL [arg={0:0}, arg={0:0}, r=0, w=1, x=3, y=0] [L703] 1 w = 0 VAL [arg={0:0}, arg={0:0}, r=0, w=0, x=3, y=0] [L708] CALL 2 __VERIFIER_atomic_take_read_lock() [L694] EXPR 2 w==0 [L694] CALL 2 assume_abort_if_not(w==0) [L3] COND FALSE 2 !(!cond) [L694] RET 2 assume_abort_if_not(w==0) [L695] EXPR 2 r+1 [L695] 2 r = r+1 [L708] RET 2 __VERIFIER_atomic_take_read_lock() [L703] 1 w = 0 VAL [arg={0:0}, arg={0:0}, r=1, w=0, x=3, y=0] Now there is a data race on ~w~0 between C: w==0 [694] and C: w = 0 [703] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 711]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 721]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 724]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 718]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 258 locations, 50 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: 36.9s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 35.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 242 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 113 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 462 IncrementalHoareTripleChecker+Invalid, 495 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 45 mSDtfsCounter, 462 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=753occurred in iteration=9, InterpolantAutomatonStates: 28, 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: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 286 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-26 11:44:27,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec77ab6f-1e46-4fa6-8bea-7b0bfb9e5223/bin/uautomizer-verify-VRDe98Ueme/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE