./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.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_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:25:17,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:25:17,195 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-28 20:25:17,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:25:17,201 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:25:17,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:25:17,231 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:25:17,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:25:17,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:25:17,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:25:17,234 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:25:17,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:25:17,235 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:25:17,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:25:17,236 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:25:17,237 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:25:17,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:25:17,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:25:17,239 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:25:17,239 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:25:17,240 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:25:17,241 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:25:17,241 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-28 20:25:17,242 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:25:17,242 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:25:17,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:25:17,243 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:25:17,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:25:17,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:25:17,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:25:17,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:25:17,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:25:17,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:25:17,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:25:17,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:25:17,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:25:17,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:25:17,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:25:17,247 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:25:17,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:25:17,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:25:17,248 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_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7faac9952fd378b53dcd8f21391daa9cc75834f7be2a5ad0c70d96fc8524bd08 [2023-11-28 20:25:17,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:25:17,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:25:17,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:25:17,558 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:25:17,558 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:25:17,560 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-28 20:25:20,742 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:25:21,030 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:25:21,031 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/sv-benchmarks/c/goblint-regression/28-race_reach_94-alloc_region_racing.i [2023-11-28 20:25:21,054 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/data/7fbed1b54/79be7e5fc5aa461ca03285bba512e1a3/FLAG4350f380c [2023-11-28 20:25:21,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/data/7fbed1b54/79be7e5fc5aa461ca03285bba512e1a3 [2023-11-28 20:25:21,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:25:21,071 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:25:21,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:25:21,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:25:21,078 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:25:21,079 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:21,080 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ac99bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21, skipping insertion in model container [2023-11-28 20:25:21,081 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:21,139 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:25:21,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:25:21,754 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:25:21,831 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:25:21,958 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:25:21,958 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21 WrapperNode [2023-11-28 20:25:21,958 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:25:21,960 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:25:21,960 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:25:21,960 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:25:21,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,000 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,050 INFO L138 Inliner]: procedures = 378, calls = 83, calls flagged for inlining = 10, calls inlined = 11, statements flattened = 445 [2023-11-28 20:25:22,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:25:22,051 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:25:22,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:25:22,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:25:22,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,070 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,071 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:25:22,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:25:22,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:25:22,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:25:22,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (1/1) ... [2023-11-28 20:25:22,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:25:22,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:25:22,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:25:22,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7dd05f3-8e14-46e4-8213-8aa48849bc9c/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:25:22,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:25:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-28 20:25:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:25:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-28 20:25:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-28 20:25:22,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-28 20:25:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-28 20:25:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-28 20:25:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:25:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:25:22,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-28 20:25:22,215 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-28 20:25:22,215 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-28 20:25:22,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-28 20:25:22,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:25:22,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:25:22,218 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-28 20:25:22,412 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:25:22,414 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:25:23,177 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:25:23,225 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:25:23,225 INFO L309 CfgBuilder]: Removed 23 assume(true) statements. [2023-11-28 20:25:23,227 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:25:23 BoogieIcfgContainer [2023-11-28 20:25:23,227 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:25:23,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:25:23,230 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:25:23,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:25:23,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:25:21" (1/3) ... [2023-11-28 20:25:23,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df5b687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:25:23, skipping insertion in model container [2023-11-28 20:25:23,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:25:21" (2/3) ... [2023-11-28 20:25:23,236 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2df5b687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:25:23, skipping insertion in model container [2023-11-28 20:25:23,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:25:23" (3/3) ... [2023-11-28 20:25:23,237 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_94-alloc_region_racing.i [2023-11-28 20:25:23,248 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-28 20:25:23,262 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:25:23,262 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2023-11-28 20:25:23,262 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-28 20:25:23,418 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-28 20:25:23,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 442 places, 470 transitions, 947 flow [2023-11-28 20:25:23,722 INFO L124 PetriNetUnfolderBase]: 48/686 cut-off events. [2023-11-28 20:25:23,723 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-28 20:25:23,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 691 conditions, 686 events. 48/686 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2319 event pairs, 0 based on Foata normal form. 0/593 useless extension candidates. Maximal degree in co-relation 385. Up to 8 conditions per place. [2023-11-28 20:25:23,740 INFO L82 GeneralOperation]: Start removeDead. Operand has 442 places, 470 transitions, 947 flow [2023-11-28 20:25:23,754 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 442 places, 470 transitions, 947 flow [2023-11-28 20:25:23,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:25:23,771 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;@e781eec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:25:23,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2023-11-28 20:25:23,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:25:23,780 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2023-11-28 20:25:23,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:25:23,781 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:23,781 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] [2023-11-28 20:25:23,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-28 20:25:23,788 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:23,788 INFO L85 PathProgramCache]: Analyzing trace with hash 448759098, now seen corresponding path program 1 times [2023-11-28 20:25:23,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:23,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389789278] [2023-11-28 20:25:23,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:24,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:24,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:24,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389789278] [2023-11-28 20:25:24,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389789278] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:24,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:24,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:25:24,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168019051] [2023-11-28 20:25:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:24,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:25:24,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:24,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:25:24,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:25:25,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 298 out of 470 [2023-11-28 20:25:25,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 442 places, 470 transitions, 947 flow. Second operand has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 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) [2023-11-28 20:25:25,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:25,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 298 of 470 [2023-11-28 20:25:25,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:29,253 INFO L124 PetriNetUnfolderBase]: 3574/13710 cut-off events. [2023-11-28 20:25:29,253 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2023-11-28 20:25:29,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20786 conditions, 13710 events. 3574/13710 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 128338 event pairs, 3400 based on Foata normal form. 1240/13851 useless extension candidates. Maximal degree in co-relation 20406. Up to 7066 conditions per place. [2023-11-28 20:25:29,328 INFO L140 encePairwiseOnDemand]: 437/470 looper letters, 137 selfloop transitions, 5 changer transitions 0/436 dead transitions. [2023-11-28 20:25:29,328 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 440 places, 436 transitions, 1163 flow [2023-11-28 20:25:29,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:25:29,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:25:29,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1958 transitions. [2023-11-28 20:25:29,353 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6943262411347517 [2023-11-28 20:25:29,354 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1958 transitions. [2023-11-28 20:25:29,354 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1958 transitions. [2023-11-28 20:25:29,360 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:29,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1958 transitions. [2023-11-28 20:25:29,373 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 326.3333333333333) internal successors, (1958), 6 states have internal predecessors, (1958), 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) [2023-11-28 20:25:29,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:29,388 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:29,390 INFO L175 Difference]: Start difference. First operand has 442 places, 470 transitions, 947 flow. Second operand 6 states and 1958 transitions. [2023-11-28 20:25:29,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 440 places, 436 transitions, 1163 flow [2023-11-28 20:25:29,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 440 places, 436 transitions, 1163 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:25:29,407 INFO L231 Difference]: Finished difference. Result has 440 places, 436 transitions, 889 flow [2023-11-28 20:25:29,410 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=879, PETRI_DIFFERENCE_MINUEND_PLACES=435, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=436, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=889, PETRI_PLACES=440, PETRI_TRANSITIONS=436} [2023-11-28 20:25:29,413 INFO L281 CegarLoopForPetriNet]: 442 programPoint places, -2 predicate places. [2023-11-28 20:25:29,413 INFO L495 AbstractCegarLoop]: Abstraction has has 440 places, 436 transitions, 889 flow [2023-11-28 20:25:29,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 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) [2023-11-28 20:25:29,415 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:29,415 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] [2023-11-28 20:25:29,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:25:29,416 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-28 20:25:29,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:29,417 INFO L85 PathProgramCache]: Analyzing trace with hash 341592347, now seen corresponding path program 1 times [2023-11-28 20:25:29,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:29,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801925586] [2023-11-28 20:25:29,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:29,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:29,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:29,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:29,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801925586] [2023-11-28 20:25:29,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801925586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:29,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:29,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:25:29,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242362027] [2023-11-28 20:25:29,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:29,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:25:29,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:29,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:25:29,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:25:30,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 345 out of 470 [2023-11-28 20:25:30,632 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 436 transitions, 889 flow. Second operand has 6 states, 6 states have (on average 346.8333333333333) internal successors, (2081), 6 states have internal predecessors, (2081), 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) [2023-11-28 20:25:30,632 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:30,632 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 345 of 470 [2023-11-28 20:25:30,633 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:33,192 INFO L124 PetriNetUnfolderBase]: 1844/11753 cut-off events. [2023-11-28 20:25:33,193 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-28 20:25:33,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15348 conditions, 11753 events. 1844/11753 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 116009 event pairs, 1030 based on Foata normal form. 0/10639 useless extension candidates. Maximal degree in co-relation 15290. Up to 3129 conditions per place. [2023-11-28 20:25:33,255 INFO L140 encePairwiseOnDemand]: 433/470 looper letters, 134 selfloop transitions, 107 changer transitions 0/581 dead transitions. [2023-11-28 20:25:33,255 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 444 places, 581 transitions, 1664 flow [2023-11-28 20:25:33,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:25:33,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:25:33,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2313 transitions. [2023-11-28 20:25:33,266 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8202127659574469 [2023-11-28 20:25:33,266 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2313 transitions. [2023-11-28 20:25:33,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2313 transitions. [2023-11-28 20:25:33,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:33,269 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2313 transitions. [2023-11-28 20:25:33,278 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 385.5) internal successors, (2313), 6 states have internal predecessors, (2313), 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) [2023-11-28 20:25:33,288 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:33,292 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:33,292 INFO L175 Difference]: Start difference. First operand has 440 places, 436 transitions, 889 flow. Second operand 6 states and 2313 transitions. [2023-11-28 20:25:33,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 444 places, 581 transitions, 1664 flow [2023-11-28 20:25:33,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 439 places, 581 transitions, 1654 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-28 20:25:33,311 INFO L231 Difference]: Finished difference. Result has 444 places, 536 transitions, 1567 flow [2023-11-28 20:25:33,312 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=877, PETRI_DIFFERENCE_MINUEND_PLACES=434, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=400, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1567, PETRI_PLACES=444, PETRI_TRANSITIONS=536} [2023-11-28 20:25:33,313 INFO L281 CegarLoopForPetriNet]: 442 programPoint places, 2 predicate places. [2023-11-28 20:25:33,314 INFO L495 AbstractCegarLoop]: Abstraction has has 444 places, 536 transitions, 1567 flow [2023-11-28 20:25:33,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 346.8333333333333) internal successors, (2081), 6 states have internal predecessors, (2081), 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) [2023-11-28 20:25:33,316 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:33,316 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:33,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:25:33,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-28 20:25:33,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:33,318 INFO L85 PathProgramCache]: Analyzing trace with hash -656843951, now seen corresponding path program 1 times [2023-11-28 20:25:33,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:33,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923887896] [2023-11-28 20:25:33,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:33,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:33,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:33,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:33,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:33,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923887896] [2023-11-28 20:25:33,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923887896] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:33,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:33,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:25:33,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562986609] [2023-11-28 20:25:33,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:33,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:25:33,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:33,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:25:33,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:25:34,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 470 [2023-11-28 20:25:34,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 444 places, 536 transitions, 1567 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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) [2023-11-28 20:25:34,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:34,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 470 [2023-11-28 20:25:34,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:38,719 INFO L124 PetriNetUnfolderBase]: 5330/20415 cut-off events. [2023-11-28 20:25:38,719 INFO L125 PetriNetUnfolderBase]: For 3358/3398 co-relation queries the response was YES. [2023-11-28 20:25:38,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35084 conditions, 20415 events. 5330/20415 cut-off events. For 3358/3398 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 208336 event pairs, 3688 based on Foata normal form. 0/18618 useless extension candidates. Maximal degree in co-relation 34571. Up to 10243 conditions per place. [2023-11-28 20:25:38,797 INFO L140 encePairwiseOnDemand]: 417/470 looper letters, 273 selfloop transitions, 171 changer transitions 0/740 dead transitions. [2023-11-28 20:25:38,797 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 448 places, 740 transitions, 3055 flow [2023-11-28 20:25:38,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:25:38,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:25:38,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2152 transitions. [2023-11-28 20:25:38,805 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2023-11-28 20:25:38,805 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2152 transitions. [2023-11-28 20:25:38,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2152 transitions. [2023-11-28 20:25:38,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:38,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2152 transitions. [2023-11-28 20:25:38,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.6666666666667) internal successors, (2152), 6 states have internal predecessors, (2152), 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) [2023-11-28 20:25:38,820 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:38,823 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:38,823 INFO L175 Difference]: Start difference. First operand has 444 places, 536 transitions, 1567 flow. Second operand 6 states and 2152 transitions. [2023-11-28 20:25:38,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 448 places, 740 transitions, 3055 flow [2023-11-28 20:25:38,838 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 448 places, 740 transitions, 3055 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-28 20:25:38,849 INFO L231 Difference]: Finished difference. Result has 453 places, 700 transitions, 2863 flow [2023-11-28 20:25:38,851 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=1565, PETRI_DIFFERENCE_MINUEND_PLACES=443, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=484, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2863, PETRI_PLACES=453, PETRI_TRANSITIONS=700} [2023-11-28 20:25:38,852 INFO L281 CegarLoopForPetriNet]: 442 programPoint places, 11 predicate places. [2023-11-28 20:25:38,853 INFO L495 AbstractCegarLoop]: Abstraction has has 453 places, 700 transitions, 2863 flow [2023-11-28 20:25:38,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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) [2023-11-28 20:25:38,854 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:38,855 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:38,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:25:38,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-28 20:25:38,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:38,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1691140256, now seen corresponding path program 1 times [2023-11-28 20:25:38,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:38,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698546857] [2023-11-28 20:25:38,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:38,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:38,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:39,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:39,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:39,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698546857] [2023-11-28 20:25:39,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698546857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:39,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:39,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:25:39,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886834750] [2023-11-28 20:25:39,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:39,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:25:39,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:39,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:25:39,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:25:39,829 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 301 out of 470 [2023-11-28 20:25:39,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 453 places, 700 transitions, 2863 flow. Second operand has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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) [2023-11-28 20:25:39,833 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:39,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 301 of 470 [2023-11-28 20:25:39,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-28 20:25:44,697 INFO L124 PetriNetUnfolderBase]: 5771/21950 cut-off events. [2023-11-28 20:25:44,697 INFO L125 PetriNetUnfolderBase]: For 7293/7345 co-relation queries the response was YES. [2023-11-28 20:25:44,740 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42242 conditions, 21950 events. 5771/21950 cut-off events. For 7293/7345 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 223895 event pairs, 3728 based on Foata normal form. 0/20084 useless extension candidates. Maximal degree in co-relation 41705. Up to 10738 conditions per place. [2023-11-28 20:25:44,815 INFO L140 encePairwiseOnDemand]: 417/470 looper letters, 433 selfloop transitions, 171 changer transitions 0/904 dead transitions. [2023-11-28 20:25:44,816 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 457 places, 904 transitions, 4991 flow [2023-11-28 20:25:44,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:25:44,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-28 20:25:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2152 transitions. [2023-11-28 20:25:44,824 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7631205673758865 [2023-11-28 20:25:44,824 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2152 transitions. [2023-11-28 20:25:44,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2152 transitions. [2023-11-28 20:25:44,826 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-28 20:25:44,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2152 transitions. [2023-11-28 20:25:44,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 358.6666666666667) internal successors, (2152), 6 states have internal predecessors, (2152), 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) [2023-11-28 20:25:44,837 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:44,838 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 470.0) internal successors, (3290), 7 states have internal predecessors, (3290), 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) [2023-11-28 20:25:44,839 INFO L175 Difference]: Start difference. First operand has 453 places, 700 transitions, 2863 flow. Second operand 6 states and 2152 transitions. [2023-11-28 20:25:44,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 457 places, 904 transitions, 4991 flow [2023-11-28 20:25:44,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 457 places, 904 transitions, 4799 flow, removed 96 selfloop flow, removed 0 redundant places. [2023-11-28 20:25:44,876 INFO L231 Difference]: Finished difference. Result has 462 places, 864 transitions, 4287 flow [2023-11-28 20:25:44,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=470, PETRI_DIFFERENCE_MINUEND_FLOW=2669, PETRI_DIFFERENCE_MINUEND_PLACES=452, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=699, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=648, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=4287, PETRI_PLACES=462, PETRI_TRANSITIONS=864} [2023-11-28 20:25:44,878 INFO L281 CegarLoopForPetriNet]: 442 programPoint places, 20 predicate places. [2023-11-28 20:25:44,878 INFO L495 AbstractCegarLoop]: Abstraction has has 462 places, 864 transitions, 4287 flow [2023-11-28 20:25:44,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 303.6666666666667) internal successors, (1822), 6 states have internal predecessors, (1822), 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) [2023-11-28 20:25:44,879 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:44,880 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:25:44,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-28 20:25:44,880 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 36 more)] === [2023-11-28 20:25:44,881 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:44,881 INFO L85 PathProgramCache]: Analyzing trace with hash 1002352148, now seen corresponding path program 1 times [2023-11-28 20:25:44,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:44,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086154793] [2023-11-28 20:25:44,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:44,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:25:44,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:25:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:25:45,034 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:25:45,034 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:25:45,036 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (38 of 39 remaining) [2023-11-28 20:25:45,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (37 of 39 remaining) [2023-11-28 20:25:45,038 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (36 of 39 remaining) [2023-11-28 20:25:45,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (35 of 39 remaining) [2023-11-28 20:25:45,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (34 of 39 remaining) [2023-11-28 20:25:45,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 39 remaining) [2023-11-28 20:25:45,039 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (32 of 39 remaining) [2023-11-28 20:25:45,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 39 remaining) [2023-11-28 20:25:45,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (30 of 39 remaining) [2023-11-28 20:25:45,040 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (29 of 39 remaining) [2023-11-28 20:25:45,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (28 of 39 remaining) [2023-11-28 20:25:45,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (27 of 39 remaining) [2023-11-28 20:25:45,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (26 of 39 remaining) [2023-11-28 20:25:45,041 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (25 of 39 remaining) [2023-11-28 20:25:45,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (24 of 39 remaining) [2023-11-28 20:25:45,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (23 of 39 remaining) [2023-11-28 20:25:45,042 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (22 of 39 remaining) [2023-11-28 20:25:45,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (21 of 39 remaining) [2023-11-28 20:25:45,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (20 of 39 remaining) [2023-11-28 20:25:45,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 39 remaining) [2023-11-28 20:25:45,043 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 39 remaining) [2023-11-28 20:25:45,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 39 remaining) [2023-11-28 20:25:45,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 39 remaining) [2023-11-28 20:25:45,044 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 39 remaining) [2023-11-28 20:25:45,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (14 of 39 remaining) [2023-11-28 20:25:45,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (13 of 39 remaining) [2023-11-28 20:25:45,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (12 of 39 remaining) [2023-11-28 20:25:45,045 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (11 of 39 remaining) [2023-11-28 20:25:45,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (10 of 39 remaining) [2023-11-28 20:25:45,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (9 of 39 remaining) [2023-11-28 20:25:45,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (8 of 39 remaining) [2023-11-28 20:25:45,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 39 remaining) [2023-11-28 20:25:45,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (6 of 39 remaining) [2023-11-28 20:25:45,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (5 of 39 remaining) [2023-11-28 20:25:45,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr9ASSERT_VIOLATIONDATA_RACE (4 of 39 remaining) [2023-11-28 20:25:45,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (3 of 39 remaining) [2023-11-28 20:25:45,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr7ASSERT_VIOLATIONDATA_RACE (2 of 39 remaining) [2023-11-28 20:25:45,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr6ASSERT_VIOLATIONDATA_RACE (1 of 39 remaining) [2023-11-28 20:25:45,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr8ASSERT_VIOLATIONDATA_RACE (0 of 39 remaining) [2023-11-28 20:25:45,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-28 20:25:45,049 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-28 20:25:45,053 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-28 20:25:45,053 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-28 20:25:45,176 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-28 20:25:45,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 596 places, 636 transitions, 1288 flow [2023-11-28 20:25:45,477 INFO L124 PetriNetUnfolderBase]: 81/1100 cut-off events. [2023-11-28 20:25:45,477 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2023-11-28 20:25:45,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1112 conditions, 1100 events. 81/1100 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 5117 event pairs, 0 based on Foata normal form. 0/948 useless extension candidates. Maximal degree in co-relation 688. Up to 12 conditions per place. [2023-11-28 20:25:45,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 596 places, 636 transitions, 1288 flow [2023-11-28 20:25:45,502 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 596 places, 636 transitions, 1288 flow [2023-11-28 20:25:45,503 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:25:45,505 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;@e781eec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:25:45,505 INFO L358 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2023-11-28 20:25:45,510 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-28 20:25:45,510 INFO L124 PetriNetUnfolderBase]: 0/40 cut-off events. [2023-11-28 20:25:45,510 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-28 20:25:45,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-28 20:25:45,510 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] [2023-11-28 20:25:45,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 46 more)] === [2023-11-28 20:25:45,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:25:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash -2074848842, now seen corresponding path program 1 times [2023-11-28 20:25:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:25:45,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000938232] [2023-11-28 20:25:45,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:25:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:25:45,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:25:45,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:25:45,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:25:45,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000938232] [2023-11-28 20:25:45,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000938232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:25:45,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:25:45,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 20:25:45,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769071066] [2023-11-28 20:25:45,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:25:45,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 20:25:45,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:25:45,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 20:25:45,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:25:46,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 399 out of 636 [2023-11-28 20:25:46,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 596 places, 636 transitions, 1288 flow. Second operand has 6 states, 6 states have (on average 400.3333333333333) internal successors, (2402), 6 states have internal predecessors, (2402), 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) [2023-11-28 20:25:46,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-28 20:25:46,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 399 of 636 [2023-11-28 20:25:46,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand