./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ --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 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:33:39,155 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:33:39,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-23 22:33:39,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:33:39,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:33:39,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:33:39,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:33:39,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:33:39,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:33:39,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:33:39,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:33:39,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:33:39,299 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:33:39,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:33:39,301 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:33:39,302 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:33:39,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:33:39,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:33:39,304 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:33:39,305 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:33:39,305 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:33:39,306 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:33:39,307 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 22:33:39,307 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:33:39,308 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:33:39,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:33:39,309 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:33:39,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:33:39,310 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:33:39,311 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:33:39,311 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:39,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:33:39,313 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:33:39,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:33:39,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:33:39,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:33:39,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:33:39,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:33:39,316 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:33:39,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:33:39,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:33:39,318 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_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16b049fb81e05ec2192b5dc6cabf7c8b89c1486d4e623332a0a01a89383c6c7d [2023-11-23 22:33:39,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:33:39,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:33:39,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:33:39,626 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:33:39,627 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:33:39,628 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2023-11-23 22:33:42,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:33:43,082 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:33:43,086 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/sv-benchmarks/c/pthread-divine/one_time_barrier_2t.i [2023-11-23 22:33:43,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/data/343c431bd/40170aed6b454e57a805326c81025b57/FLAG9279e5db7 [2023-11-23 22:33:43,134 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/data/343c431bd/40170aed6b454e57a805326c81025b57 [2023-11-23 22:33:43,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:33:43,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:33:43,146 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:43,146 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:33:43,153 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:33:43,156 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:43,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f5cd668 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43, skipping insertion in model container [2023-11-23 22:33:43,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:43,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:33:43,422 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:33:43,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:43,791 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:33:43,814 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 22:33:43,904 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:43,946 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:33:43,956 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:33:43,956 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43 WrapperNode [2023-11-23 22:33:43,956 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:43,958 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:43,958 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:33:43,958 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:33:43,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:43,992 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,085 INFO L138 Inliner]: procedures = 175, calls = 87, calls flagged for inlining = 20, calls inlined = 35, statements flattened = 905 [2023-11-23 22:33:44,086 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:44,087 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:33:44,087 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:33:44,087 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:33:44,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,138 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,139 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,215 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,252 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:33:44,253 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:33:44,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:33:44,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:33:44,269 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (1/1) ... [2023-11-23 22:33:44,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:44,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:44,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:33:44,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5205a4f9-0bf9-4e57-a6f1-446197056a83/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:33:44,363 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 22:33:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 22:33:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 22:33:44,364 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2023-11-23 22:33:44,364 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2023-11-23 22:33:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:33:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 22:33:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:33:44,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 22:33:44,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:33:44,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 22:33:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 22:33:44,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:33:44,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:33:44,370 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:33:44,585 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:33:44,588 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:33:45,961 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:33:46,019 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:33:46,019 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-23 22:33:46,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:46 BoogieIcfgContainer [2023-11-23 22:33:46,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:33:46,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:33:46,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:33:46,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:33:46,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:33:43" (1/3) ... [2023-11-23 22:33:46,028 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6587eb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:46, skipping insertion in model container [2023-11-23 22:33:46,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:43" (2/3) ... [2023-11-23 22:33:46,029 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6587eb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:46, skipping insertion in model container [2023-11-23 22:33:46,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:46" (3/3) ... [2023-11-23 22:33:46,030 INFO L112 eAbstractionObserver]: Analyzing ICFG one_time_barrier_2t.i [2023-11-23 22:33:46,042 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:33:46,052 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:33:46,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 76 error locations. [2023-11-23 22:33:46,053 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:33:46,350 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-23 22:33:46,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 967 places, 1053 transitions, 2113 flow [2023-11-23 22:33:47,541 INFO L124 PetriNetUnfolderBase]: 135/1558 cut-off events. [2023-11-23 22:33:47,542 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-23 22:33:47,603 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 1558 events. 135/1558 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 5910 event pairs, 0 based on Foata normal form. 0/1307 useless extension candidates. Maximal degree in co-relation 945. Up to 4 conditions per place. [2023-11-23 22:33:47,603 INFO L82 GeneralOperation]: Start removeDead. Operand has 967 places, 1053 transitions, 2113 flow [2023-11-23 22:33:47,649 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 967 places, 1053 transitions, 2113 flow [2023-11-23 22:33:47,668 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:33:47,676 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;@1b770411, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:33:47,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 111 error locations. [2023-11-23 22:33:47,690 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:33:47,690 INFO L124 PetriNetUnfolderBase]: 1/48 cut-off events. [2023-11-23 22:33:47,690 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:33:47,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:33:47,691 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] [2023-11-23 22:33:47,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-23 22:33:47,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:47,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1772589357, now seen corresponding path program 1 times [2023-11-23 22:33:47,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:47,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620700125] [2023-11-23 22:33:47,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:47,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:48,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:48,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:48,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620700125] [2023-11-23 22:33:48,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620700125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:48,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:48,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:33:48,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962079905] [2023-11-23 22:33:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:48,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:33:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:48,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:33:48,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:33:51,186 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1053 [2023-11-23 22:33:51,201 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 1053 transitions, 2113 flow. Second operand has 6 states, 6 states have (on average 751.5) internal successors, (4509), 6 states have internal predecessors, (4509), 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) [2023-11-23 22:33:51,202 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:33:51,202 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1053 [2023-11-23 22:33:51,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:34:06,063 INFO L124 PetriNetUnfolderBase]: 12308/58168 cut-off events. [2023-11-23 22:34:06,064 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 22:34:06,189 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80777 conditions, 58168 events. 12308/58168 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 676768 event pairs, 11009 based on Foata normal form. 6979/58205 useless extension candidates. Maximal degree in co-relation 80098. Up to 22599 conditions per place. [2023-11-23 22:34:06,381 INFO L140 encePairwiseOnDemand]: 977/1053 looper letters, 227 selfloop transitions, 5 changer transitions 3/928 dead transitions. [2023-11-23 22:34:06,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 917 places, 928 transitions, 2327 flow [2023-11-23 22:34:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:34:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:34:06,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4803 transitions. [2023-11-23 22:34:06,423 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7602089268755935 [2023-11-23 22:34:06,424 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4803 transitions. [2023-11-23 22:34:06,424 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4803 transitions. [2023-11-23 22:34:06,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:34:06,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4803 transitions. [2023-11-23 22:34:06,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 800.5) internal successors, (4803), 6 states have internal predecessors, (4803), 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) [2023-11-23 22:34:06,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1053.0) internal successors, (7371), 7 states have internal predecessors, (7371), 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) [2023-11-23 22:34:06,489 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1053.0) internal successors, (7371), 7 states have internal predecessors, (7371), 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) [2023-11-23 22:34:06,491 INFO L175 Difference]: Start difference. First operand has 967 places, 1053 transitions, 2113 flow. Second operand 6 states and 4803 transitions. [2023-11-23 22:34:06,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 917 places, 928 transitions, 2327 flow [2023-11-23 22:34:06,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 917 places, 928 transitions, 2327 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:34:06,534 INFO L231 Difference]: Finished difference. Result has 917 places, 925 transitions, 1867 flow [2023-11-23 22:34:06,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1053, PETRI_DIFFERENCE_MINUEND_FLOW=1863, PETRI_DIFFERENCE_MINUEND_PLACES=912, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=928, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1867, PETRI_PLACES=917, PETRI_TRANSITIONS=925} [2023-11-23 22:34:06,542 INFO L281 CegarLoopForPetriNet]: 967 programPoint places, -50 predicate places. [2023-11-23 22:34:06,543 INFO L495 AbstractCegarLoop]: Abstraction has has 917 places, 925 transitions, 1867 flow [2023-11-23 22:34:06,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 751.5) internal successors, (4509), 6 states have internal predecessors, (4509), 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) [2023-11-23 22:34:06,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:34:06,548 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:06,548 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:34:06,548 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-23 22:34:06,549 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:06,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1785898594, now seen corresponding path program 1 times [2023-11-23 22:34:06,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:34:06,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605007482] [2023-11-23 22:34:06,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:06,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:34:06,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:06,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:06,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:34:06,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605007482] [2023-11-23 22:34:06,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605007482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:06,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:06,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:34:06,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504539813] [2023-11-23 22:34:06,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:06,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:34:06,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:34:06,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:34:06,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:34:06,701 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 955 out of 1053 [2023-11-23 22:34:06,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 917 places, 925 transitions, 1867 flow. Second operand has 3 states, 3 states have (on average 956.3333333333334) internal successors, (2869), 3 states have internal predecessors, (2869), 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) [2023-11-23 22:34:06,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:34:06,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 955 of 1053 [2023-11-23 22:34:06,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:34:08,291 INFO L124 PetriNetUnfolderBase]: 243/4778 cut-off events. [2023-11-23 22:34:08,291 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-23 22:34:08,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5097 conditions, 4778 events. 243/4778 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 36321 event pairs, 110 based on Foata normal form. 1/4125 useless extension candidates. Maximal degree in co-relation 5013. Up to 302 conditions per place. [2023-11-23 22:34:08,356 INFO L140 encePairwiseOnDemand]: 1050/1053 looper letters, 27 selfloop transitions, 2 changer transitions 0/926 dead transitions. [2023-11-23 22:34:08,356 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 916 places, 926 transitions, 1927 flow [2023-11-23 22:34:08,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:34:08,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-23 22:34:08,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2895 transitions. [2023-11-23 22:34:08,366 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9164292497625831 [2023-11-23 22:34:08,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2895 transitions. [2023-11-23 22:34:08,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2895 transitions. [2023-11-23 22:34:08,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:34:08,371 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2895 transitions. [2023-11-23 22:34:08,381 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 965.0) internal successors, (2895), 3 states have internal predecessors, (2895), 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) [2023-11-23 22:34:08,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1053.0) internal successors, (4212), 4 states have internal predecessors, (4212), 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) [2023-11-23 22:34:08,396 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1053.0) internal successors, (4212), 4 states have internal predecessors, (4212), 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) [2023-11-23 22:34:08,397 INFO L175 Difference]: Start difference. First operand has 917 places, 925 transitions, 1867 flow. Second operand 3 states and 2895 transitions. [2023-11-23 22:34:08,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 916 places, 926 transitions, 1927 flow [2023-11-23 22:34:08,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 911 places, 926 transitions, 1917 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-23 22:34:08,423 INFO L231 Difference]: Finished difference. Result has 912 places, 926 transitions, 1869 flow [2023-11-23 22:34:08,426 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1053, PETRI_DIFFERENCE_MINUEND_FLOW=1857, PETRI_DIFFERENCE_MINUEND_PLACES=909, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=923, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1869, PETRI_PLACES=912, PETRI_TRANSITIONS=926} [2023-11-23 22:34:08,427 INFO L281 CegarLoopForPetriNet]: 967 programPoint places, -55 predicate places. [2023-11-23 22:34:08,428 INFO L495 AbstractCegarLoop]: Abstraction has has 912 places, 926 transitions, 1869 flow [2023-11-23 22:34:08,433 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 956.3333333333334) internal successors, (2869), 3 states have internal predecessors, (2869), 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) [2023-11-23 22:34:08,434 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:34:08,434 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:08,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:34:08,435 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-23 22:34:08,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash -790762889, now seen corresponding path program 1 times [2023-11-23 22:34:08,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:34:08,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971836913] [2023-11-23 22:34:08,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:08,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:34:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:09,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:09,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:34:09,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971836913] [2023-11-23 22:34:09,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971836913] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:09,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:09,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:34:09,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210512762] [2023-11-23 22:34:09,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:09,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:34:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:34:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:34:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:34:11,549 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1053 [2023-11-23 22:34:11,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 912 places, 926 transitions, 1869 flow. Second operand has 6 states, 6 states have (on average 751.5) internal successors, (4509), 6 states have internal predecessors, (4509), 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) [2023-11-23 22:34:11,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:34:11,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1053 [2023-11-23 22:34:11,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:34:25,305 INFO L124 PetriNetUnfolderBase]: 12308/58192 cut-off events. [2023-11-23 22:34:25,305 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-23 22:34:25,408 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80816 conditions, 58192 events. 12308/58192 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 677090 event pairs, 11009 based on Foata normal form. 0/51252 useless extension candidates. Maximal degree in co-relation 80737. Up to 22602 conditions per place. [2023-11-23 22:34:25,559 INFO L140 encePairwiseOnDemand]: 1047/1053 looper letters, 228 selfloop transitions, 5 changer transitions 0/925 dead transitions. [2023-11-23 22:34:25,559 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 916 places, 925 transitions, 2333 flow [2023-11-23 22:34:25,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 22:34:25,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-23 22:34:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 4733 transitions. [2023-11-23 22:34:25,575 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7491294713516936 [2023-11-23 22:34:25,575 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 4733 transitions. [2023-11-23 22:34:25,575 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 4733 transitions. [2023-11-23 22:34:25,580 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:34:25,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 4733 transitions. [2023-11-23 22:34:25,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 788.8333333333334) internal successors, (4733), 6 states have internal predecessors, (4733), 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) [2023-11-23 22:34:25,613 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 1053.0) internal successors, (7371), 7 states have internal predecessors, (7371), 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) [2023-11-23 22:34:25,626 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 1053.0) internal successors, (7371), 7 states have internal predecessors, (7371), 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) [2023-11-23 22:34:25,634 INFO L175 Difference]: Start difference. First operand has 912 places, 926 transitions, 1869 flow. Second operand 6 states and 4733 transitions. [2023-11-23 22:34:25,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 916 places, 925 transitions, 2333 flow [2023-11-23 22:34:25,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 915 places, 925 transitions, 2331 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:34:25,660 INFO L231 Difference]: Finished difference. Result has 915 places, 925 transitions, 1875 flow [2023-11-23 22:34:25,662 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=1053, PETRI_DIFFERENCE_MINUEND_FLOW=1865, PETRI_DIFFERENCE_MINUEND_PLACES=910, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=925, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=920, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1875, PETRI_PLACES=915, PETRI_TRANSITIONS=925} [2023-11-23 22:34:25,664 INFO L281 CegarLoopForPetriNet]: 967 programPoint places, -52 predicate places. [2023-11-23 22:34:25,664 INFO L495 AbstractCegarLoop]: Abstraction has has 915 places, 925 transitions, 1875 flow [2023-11-23 22:34:25,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 751.5) internal successors, (4509), 6 states have internal predecessors, (4509), 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) [2023-11-23 22:34:25,667 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:34:25,667 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:25,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:34:25,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 108 more)] === [2023-11-23 22:34:25,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:25,669 INFO L85 PathProgramCache]: Analyzing trace with hash -752747022, now seen corresponding path program 1 times [2023-11-23 22:34:25,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:34:25,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676198291] [2023-11-23 22:34:25,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:25,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:34:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:26,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:34:26,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676198291] [2023-11-23 22:34:26,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676198291] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:26,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:26,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 22:34:26,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489547949] [2023-11-23 22:34:26,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:26,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 22:34:26,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:34:26,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 22:34:26,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-23 22:34:27,773 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 750 out of 1053 [2023-11-23 22:34:27,778 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 915 places, 925 transitions, 1875 flow. Second operand has 6 states, 6 states have (on average 751.5) internal successors, (4509), 6 states have internal predecessors, (4509), 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) [2023-11-23 22:34:27,778 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:34:27,778 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 750 of 1053 [2023-11-23 22:34:27,778 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand