./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX --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 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:42:24,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:42:25,067 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 18:42:25,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:42:25,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:42:25,120 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:42:25,121 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:42:25,122 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:42:25,123 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:42:25,125 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:42:25,126 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:42:25,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:42:25,127 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:42:25,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:42:25,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:42:25,128 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:42:25,129 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:42:25,133 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:42:25,133 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:42:25,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:42:25,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:42:25,137 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:42:25,138 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 18:42:25,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:42:25,138 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 18:42:25,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:42:25,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:42:25,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:42:25,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:42:25,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:42:25,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:42:25,143 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:25,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:42:25,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:42:25,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:42:25,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:42:25,145 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:42:25,145 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:42:25,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:42:25,146 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:42:25,147 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:42:25,148 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_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7cd6aaa75855c8ee03a174376352b142cf57dd56532b968b1b6c916585172927 [2024-11-08 18:42:25,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:42:25,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:42:25,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:42:25,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:42:25,530 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:42:25,532 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i Unable to find full path for "g++" [2024-11-08 18:42:27,605 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:42:27,911 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:42:27,912 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/sv-benchmarks/c/goblint-regression/28-race_reach_12-ptr_racefree.i [2024-11-08 18:42:27,928 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/data/7b4dae71f/16372378934641e880fe5cabc4f3c67e/FLAG1e674f6ac [2024-11-08 18:42:28,194 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/data/7b4dae71f/16372378934641e880fe5cabc4f3c67e [2024-11-08 18:42:28,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:42:28,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:42:28,199 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:28,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:42:28,208 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:42:28,209 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:28,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e66f27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28, skipping insertion in model container [2024-11-08 18:42:28,211 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:28,263 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:42:28,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:28,793 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:42:28,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:42:28,941 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:42:28,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28 WrapperNode [2024-11-08 18:42:28,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:42:28,944 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:42:28,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:42:28,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:42:28,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:28,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,031 INFO L138 Inliner]: procedures = 171, calls = 43, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 150 [2024-11-08 18:42:29,032 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:42:29,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:42:29,036 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:42:29,036 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:42:29,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,057 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,059 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,083 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,105 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,109 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:42:29,114 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:42:29,114 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:42:29,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:42:29,115 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (1/1) ... [2024-11-08 18:42:29,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:42:29,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:42:29,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:42:29,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:42:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 18:42:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 18:42:29,200 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 18:42:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:42:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 18:42:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-08 18:42:29,201 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-08 18:42:29,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:42:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 18:42:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 18:42:29,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:42:29,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:42:29,204 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 18:42:29,411 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:42:29,414 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:42:29,884 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 18:42:29,884 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:42:29,958 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:42:29,958 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 18:42:29,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:29 BoogieIcfgContainer [2024-11-08 18:42:29,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:42:29,965 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:42:29,965 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:42:29,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:42:29,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:42:28" (1/3) ... [2024-11-08 18:42:29,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eedb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:29, skipping insertion in model container [2024-11-08 18:42:29,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:42:28" (2/3) ... [2024-11-08 18:42:29,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25eedb89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:42:29, skipping insertion in model container [2024-11-08 18:42:29,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:42:29" (3/3) ... [2024-11-08 18:42:29,974 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_12-ptr_racefree.i [2024-11-08 18:42:29,996 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:42:29,996 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2024-11-08 18:42:29,996 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 18:42:30,137 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 18:42:30,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 213 places, 223 transitions, 453 flow [2024-11-08 18:42:30,378 INFO L124 PetriNetUnfolderBase]: 19/289 cut-off events. [2024-11-08 18:42:30,378 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 18:42:30,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 289 events. 19/289 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 719 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 150. Up to 4 conditions per place. [2024-11-08 18:42:30,390 INFO L82 GeneralOperation]: Start removeDead. Operand has 213 places, 223 transitions, 453 flow [2024-11-08 18:42:30,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 213 places, 223 transitions, 453 flow [2024-11-08 18:42:30,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:42:30,417 INFO L333 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, 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;@18f95f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:42:30,417 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-08 18:42:30,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:42:30,457 INFO L124 PetriNetUnfolderBase]: 2/117 cut-off events. [2024-11-08 18:42:30,457 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:42:30,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:30,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:30,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:42:30,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:30,466 INFO L85 PathProgramCache]: Analyzing trace with hash 914869860, now seen corresponding path program 1 times [2024-11-08 18:42:30,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:30,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688273987] [2024-11-08 18:42:30,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:30,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:30,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:32,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:32,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:32,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688273987] [2024-11-08 18:42:32,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688273987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:32,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:32,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:32,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77248986] [2024-11-08 18:42:32,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:32,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:32,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:32,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:32,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:32,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 223 [2024-11-08 18:42:32,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 223 transitions, 453 flow. Second operand has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 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) [2024-11-08 18:42:32,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:32,474 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 223 [2024-11-08 18:42:32,475 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:33,475 INFO L124 PetriNetUnfolderBase]: 587/2226 cut-off events. [2024-11-08 18:42:33,475 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-08 18:42:33,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3484 conditions, 2226 events. 587/2226 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 15129 event pairs, 343 based on Foata normal form. 174/2233 useless extension candidates. Maximal degree in co-relation 3281. Up to 1080 conditions per place. [2024-11-08 18:42:33,498 INFO L140 encePairwiseOnDemand]: 190/223 looper letters, 73 selfloop transitions, 70 changer transitions 0/304 dead transitions. [2024-11-08 18:42:33,499 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 304 transitions, 901 flow [2024-11-08 18:42:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:33,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:42:33,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1150 transitions. [2024-11-08 18:42:33,525 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.85949177877429 [2024-11-08 18:42:33,527 INFO L175 Difference]: Start difference. First operand has 213 places, 223 transitions, 453 flow. Second operand 6 states and 1150 transitions. [2024-11-08 18:42:33,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 304 transitions, 901 flow [2024-11-08 18:42:33,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 304 transitions, 901 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:42:33,548 INFO L231 Difference]: Finished difference. Result has 221 places, 280 transitions, 891 flow [2024-11-08 18:42:33,550 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=429, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=211, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=891, PETRI_PLACES=221, PETRI_TRANSITIONS=280} [2024-11-08 18:42:33,557 INFO L277 CegarLoopForPetriNet]: 213 programPoint places, 8 predicate places. [2024-11-08 18:42:33,557 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 280 transitions, 891 flow [2024-11-08 18:42:33,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 163.5) internal successors, (981), 6 states have internal predecessors, (981), 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) [2024-11-08 18:42:33,559 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:33,560 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:33,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:42:33,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:42:33,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:33,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1029725048, now seen corresponding path program 1 times [2024-11-08 18:42:33,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:33,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776531104] [2024-11-08 18:42:33,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:33,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:33,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:33,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:33,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776531104] [2024-11-08 18:42:33,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776531104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:33,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:33,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:33,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427944964] [2024-11-08 18:42:33,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:33,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:33,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:33,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:33,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:33,737 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 223 [2024-11-08 18:42:33,738 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 280 transitions, 891 flow. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2024-11-08 18:42:33,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:33,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 223 [2024-11-08 18:42:33,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:34,043 INFO L124 PetriNetUnfolderBase]: 200/1222 cut-off events. [2024-11-08 18:42:34,043 INFO L125 PetriNetUnfolderBase]: For 118/132 co-relation queries the response was YES. [2024-11-08 18:42:34,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1936 conditions, 1222 events. 200/1222 cut-off events. For 118/132 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 7065 event pairs, 35 based on Foata normal form. 2/1140 useless extension candidates. Maximal degree in co-relation 1775. Up to 223 conditions per place. [2024-11-08 18:42:34,052 INFO L140 encePairwiseOnDemand]: 219/223 looper letters, 23 selfloop transitions, 3 changer transitions 0/286 dead transitions. [2024-11-08 18:42:34,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 286 transitions, 955 flow [2024-11-08 18:42:34,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:34,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:42:34,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 606 transitions. [2024-11-08 18:42:34,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.905829596412556 [2024-11-08 18:42:34,055 INFO L175 Difference]: Start difference. First operand has 221 places, 280 transitions, 891 flow. Second operand 3 states and 606 transitions. [2024-11-08 18:42:34,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 286 transitions, 955 flow [2024-11-08 18:42:34,065 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 286 transitions, 955 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:42:34,071 INFO L231 Difference]: Finished difference. Result has 224 places, 280 transitions, 904 flow [2024-11-08 18:42:34,074 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=891, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=904, PETRI_PLACES=224, PETRI_TRANSITIONS=280} [2024-11-08 18:42:34,075 INFO L277 CegarLoopForPetriNet]: 213 programPoint places, 11 predicate places. [2024-11-08 18:42:34,075 INFO L471 AbstractCegarLoop]: Abstraction has has 224 places, 280 transitions, 904 flow [2024-11-08 18:42:34,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 3 states have internal predecessors, (585), 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) [2024-11-08 18:42:34,076 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:34,076 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:34,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:42:34,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:42:34,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:34,077 INFO L85 PathProgramCache]: Analyzing trace with hash 2072946258, now seen corresponding path program 1 times [2024-11-08 18:42:34,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:34,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100456608] [2024-11-08 18:42:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:34,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:34,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:34,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:34,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:34,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100456608] [2024-11-08 18:42:34,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100456608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:34,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:34,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:34,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757033624] [2024-11-08 18:42:34,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:34,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:34,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:34,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:34,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:35,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 223 [2024-11-08 18:42:35,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 280 transitions, 904 flow. Second operand has 6 states, 6 states have (on average 175.16666666666666) internal successors, (1051), 6 states have internal predecessors, (1051), 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) [2024-11-08 18:42:35,082 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:35,082 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 223 [2024-11-08 18:42:35,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:35,607 INFO L124 PetriNetUnfolderBase]: 382/1636 cut-off events. [2024-11-08 18:42:35,607 INFO L125 PetriNetUnfolderBase]: For 462/474 co-relation queries the response was YES. [2024-11-08 18:42:35,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3322 conditions, 1636 events. 382/1636 cut-off events. For 462/474 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 10703 event pairs, 96 based on Foata normal form. 2/1572 useless extension candidates. Maximal degree in co-relation 3148. Up to 642 conditions per place. [2024-11-08 18:42:35,620 INFO L140 encePairwiseOnDemand]: 205/223 looper letters, 112 selfloop transitions, 53 changer transitions 0/339 dead transitions. [2024-11-08 18:42:35,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 339 transitions, 1476 flow [2024-11-08 18:42:35,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:35,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:42:35,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1121 transitions. [2024-11-08 18:42:35,624 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8378176382660688 [2024-11-08 18:42:35,624 INFO L175 Difference]: Start difference. First operand has 224 places, 280 transitions, 904 flow. Second operand 6 states and 1121 transitions. [2024-11-08 18:42:35,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 339 transitions, 1476 flow [2024-11-08 18:42:35,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 339 transitions, 1470 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-08 18:42:35,638 INFO L231 Difference]: Finished difference. Result has 232 places, 323 transitions, 1386 flow [2024-11-08 18:42:35,639 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=223, PETRI_DIFFERENCE_MINUEND_FLOW=898, PETRI_DIFFERENCE_MINUEND_PLACES=222, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=239, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1386, PETRI_PLACES=232, PETRI_TRANSITIONS=323} [2024-11-08 18:42:35,639 INFO L277 CegarLoopForPetriNet]: 213 programPoint places, 19 predicate places. [2024-11-08 18:42:35,640 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 323 transitions, 1386 flow [2024-11-08 18:42:35,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 175.16666666666666) internal successors, (1051), 6 states have internal predecessors, (1051), 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) [2024-11-08 18:42:35,641 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:35,641 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:35,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:42:35,642 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2024-11-08 18:42:35,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:35,643 INFO L85 PathProgramCache]: Analyzing trace with hash 366339565, now seen corresponding path program 1 times [2024-11-08 18:42:35,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:35,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519041436] [2024-11-08 18:42:35,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:35,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:42:35,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 18:42:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 18:42:35,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 18:42:35,741 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 18:42:35,742 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 12 remaining) [2024-11-08 18:42:35,744 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-08 18:42:35,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-08 18:42:35,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-08 18:42:35,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-08 18:42:35,745 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-08 18:42:35,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2024-11-08 18:42:35,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2024-11-08 18:42:35,746 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-08 18:42:35,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-08 18:42:35,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-08 18:42:35,747 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-08 18:42:35,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:42:35,748 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 18:42:35,751 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-08 18:42:35,751 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-08 18:42:35,815 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-08 18:42:35,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 274 places, 289 transitions, 594 flow [2024-11-08 18:42:35,896 INFO L124 PetriNetUnfolderBase]: 34/450 cut-off events. [2024-11-08 18:42:35,896 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-08 18:42:35,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 462 conditions, 450 events. 34/450 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1472 event pairs, 0 based on Foata normal form. 0/394 useless extension candidates. Maximal degree in co-relation 291. Up to 8 conditions per place. [2024-11-08 18:42:35,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 274 places, 289 transitions, 594 flow [2024-11-08 18:42:35,906 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 274 places, 289 transitions, 594 flow [2024-11-08 18:42:35,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:42:35,908 INFO L333 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, 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;@18f95f7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:42:35,908 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-08 18:42:35,918 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 18:42:35,918 INFO L124 PetriNetUnfolderBase]: 2/117 cut-off events. [2024-11-08 18:42:35,918 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 18:42:35,918 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:35,919 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:35,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 18:42:35,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:35,919 INFO L85 PathProgramCache]: Analyzing trace with hash -166415963, now seen corresponding path program 1 times [2024-11-08 18:42:35,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:35,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392775793] [2024-11-08 18:42:35,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:35,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:36,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:36,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:36,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392775793] [2024-11-08 18:42:36,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392775793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:36,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:36,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:36,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220029868] [2024-11-08 18:42:36,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:36,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:36,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:36,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:36,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:36,930 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 289 [2024-11-08 18:42:36,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 289 transitions, 594 flow. Second operand has 6 states, 6 states have (on average 199.5) internal successors, (1197), 6 states have internal predecessors, (1197), 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) [2024-11-08 18:42:36,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:36,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 289 [2024-11-08 18:42:36,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:50,260 INFO L124 PetriNetUnfolderBase]: 29196/68710 cut-off events. [2024-11-08 18:42:50,260 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-11-08 18:42:50,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114246 conditions, 68710 events. 29196/68710 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 1199. Compared 767720 event pairs, 20503 based on Foata normal form. 6975/71523 useless extension candidates. Maximal degree in co-relation 101084. Up to 40549 conditions per place. [2024-11-08 18:42:50,848 INFO L140 encePairwiseOnDemand]: 234/289 looper letters, 122 selfloop transitions, 134 changer transitions 0/453 dead transitions. [2024-11-08 18:42:50,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 453 transitions, 1439 flow [2024-11-08 18:42:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:42:50,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:42:50,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1509 transitions. [2024-11-08 18:42:50,855 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.870242214532872 [2024-11-08 18:42:50,856 INFO L175 Difference]: Start difference. First operand has 274 places, 289 transitions, 594 flow. Second operand 6 states and 1509 transitions. [2024-11-08 18:42:50,856 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 453 transitions, 1439 flow [2024-11-08 18:42:50,880 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 277 places, 453 transitions, 1439 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:42:50,888 INFO L231 Difference]: Finished difference. Result has 282 places, 404 transitions, 1436 flow [2024-11-08 18:42:50,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=558, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=271, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1436, PETRI_PLACES=282, PETRI_TRANSITIONS=404} [2024-11-08 18:42:50,890 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 8 predicate places. [2024-11-08 18:42:50,891 INFO L471 AbstractCegarLoop]: Abstraction has has 282 places, 404 transitions, 1436 flow [2024-11-08 18:42:50,892 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 199.5) internal successors, (1197), 6 states have internal predecessors, (1197), 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) [2024-11-08 18:42:50,892 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:50,892 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:50,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:42:50,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 18:42:50,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:50,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1869603192, now seen corresponding path program 1 times [2024-11-08 18:42:50,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:50,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069295689] [2024-11-08 18:42:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:50,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:50,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:51,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:51,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:51,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069295689] [2024-11-08 18:42:51,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069295689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:51,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:51,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:42:51,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921372807] [2024-11-08 18:42:51,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:51,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:42:51,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:51,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:42:51,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:42:51,072 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 289 [2024-11-08 18:42:51,074 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 404 transitions, 1436 flow. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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) [2024-11-08 18:42:51,074 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:51,074 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 289 [2024-11-08 18:42:51,074 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:42:56,961 INFO L124 PetriNetUnfolderBase]: 10185/31856 cut-off events. [2024-11-08 18:42:56,961 INFO L125 PetriNetUnfolderBase]: For 5177/5548 co-relation queries the response was YES. [2024-11-08 18:42:57,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56515 conditions, 31856 events. 10185/31856 cut-off events. For 5177/5548 co-relation queries the response was YES. Maximal size of possible extension queue 632. Compared 359807 event pairs, 3898 based on Foata normal form. 2/29133 useless extension candidates. Maximal degree in co-relation 50347. Up to 9266 conditions per place. [2024-11-08 18:42:57,198 INFO L140 encePairwiseOnDemand]: 285/289 looper letters, 33 selfloop transitions, 3 changer transitions 0/412 dead transitions. [2024-11-08 18:42:57,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 412 transitions, 1530 flow [2024-11-08 18:42:57,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:42:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 18:42:57,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 771 transitions. [2024-11-08 18:42:57,202 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.889273356401384 [2024-11-08 18:42:57,202 INFO L175 Difference]: Start difference. First operand has 282 places, 404 transitions, 1436 flow. Second operand 3 states and 771 transitions. [2024-11-08 18:42:57,202 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 412 transitions, 1530 flow [2024-11-08 18:42:57,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 284 places, 412 transitions, 1530 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 18:42:57,394 INFO L231 Difference]: Finished difference. Result has 285 places, 406 transitions, 1463 flow [2024-11-08 18:42:57,395 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=282, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=401, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1463, PETRI_PLACES=285, PETRI_TRANSITIONS=406} [2024-11-08 18:42:57,396 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 11 predicate places. [2024-11-08 18:42:57,396 INFO L471 AbstractCegarLoop]: Abstraction has has 285 places, 406 transitions, 1463 flow [2024-11-08 18:42:57,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 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) [2024-11-08 18:42:57,398 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:42:57,398 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:42:57,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:42:57,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 18:42:57,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:42:57,399 INFO L85 PathProgramCache]: Analyzing trace with hash 324960371, now seen corresponding path program 1 times [2024-11-08 18:42:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:42:57,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265254611] [2024-11-08 18:42:57,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:42:57,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:42:57,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:42:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:42:58,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:42:58,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265254611] [2024-11-08 18:42:58,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265254611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:42:58,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:42:58,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:42:58,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991756055] [2024-11-08 18:42:58,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:42:58,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:42:58,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:42:58,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:42:58,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:42:58,685 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 289 [2024-11-08 18:42:58,689 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 406 transitions, 1463 flow. Second operand has 6 states, 6 states have (on average 219.16666666666666) internal successors, (1315), 6 states have internal predecessors, (1315), 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) [2024-11-08 18:42:58,689 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:42:58,689 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 289 [2024-11-08 18:42:58,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:09,752 INFO L124 PetriNetUnfolderBase]: 22942/55980 cut-off events. [2024-11-08 18:43:09,753 INFO L125 PetriNetUnfolderBase]: For 20457/22059 co-relation queries the response was YES. [2024-11-08 18:43:09,973 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123410 conditions, 55980 events. 22942/55980 cut-off events. For 20457/22059 co-relation queries the response was YES. Maximal size of possible extension queue 1103. Compared 623945 event pairs, 7858 based on Foata normal form. 49/52690 useless extension candidates. Maximal degree in co-relation 123187. Up to 26573 conditions per place. [2024-11-08 18:43:10,346 INFO L140 encePairwiseOnDemand]: 263/289 looper letters, 192 selfloop transitions, 141 changer transitions 0/585 dead transitions. [2024-11-08 18:43:10,346 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 585 transitions, 2931 flow [2024-11-08 18:43:10,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:10,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:43:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1465 transitions. [2024-11-08 18:43:10,352 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8448673587081892 [2024-11-08 18:43:10,353 INFO L175 Difference]: Start difference. First operand has 285 places, 406 transitions, 1463 flow. Second operand 6 states and 1465 transitions. [2024-11-08 18:43:10,353 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 585 transitions, 2931 flow [2024-11-08 18:43:10,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 585 transitions, 2928 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-08 18:43:10,799 INFO L231 Difference]: Finished difference. Result has 294 places, 537 transitions, 2844 flow [2024-11-08 18:43:10,800 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=1460, PETRI_DIFFERENCE_MINUEND_PLACES=284, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=406, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=30, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2844, PETRI_PLACES=294, PETRI_TRANSITIONS=537} [2024-11-08 18:43:10,801 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, 20 predicate places. [2024-11-08 18:43:10,802 INFO L471 AbstractCegarLoop]: Abstraction has has 294 places, 537 transitions, 2844 flow [2024-11-08 18:43:10,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 219.16666666666666) internal successors, (1315), 6 states have internal predecessors, (1315), 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) [2024-11-08 18:43:10,803 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:10,803 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:10,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 18:43:10,804 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 18:43:10,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:10,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1677313326, now seen corresponding path program 1 times [2024-11-08 18:43:10,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:10,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804218149] [2024-11-08 18:43:10,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:10,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:11,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:11,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804218149] [2024-11-08 18:43:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804218149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:11,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345012362] [2024-11-08 18:43:11,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:11,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:11,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:11,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:11,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:43:11,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:11,301 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 18:43:11,308 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:11,812 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:11,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 18:43:11,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:11,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345012362] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 18:43:11,897 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 18:43:11,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-08 18:43:11,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791353912] [2024-11-08 18:43:11,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 18:43:11,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 18:43:11,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:11,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 18:43:11,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-08 18:43:12,064 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 289 [2024-11-08 18:43:12,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 537 transitions, 2844 flow. Second operand has 10 states, 10 states have (on average 243.6) internal successors, (2436), 10 states have internal predecessors, (2436), 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) [2024-11-08 18:43:12,069 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:12,069 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 289 [2024-11-08 18:43:12,069 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:20,650 INFO L124 PetriNetUnfolderBase]: 12917/34429 cut-off events. [2024-11-08 18:43:20,650 INFO L125 PetriNetUnfolderBase]: For 24874/26918 co-relation queries the response was YES. [2024-11-08 18:43:20,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85233 conditions, 34429 events. 12917/34429 cut-off events. For 24874/26918 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 360838 event pairs, 1740 based on Foata normal form. 431/32956 useless extension candidates. Maximal degree in co-relation 38574. Up to 13126 conditions per place. [2024-11-08 18:43:20,960 INFO L140 encePairwiseOnDemand]: 283/289 looper letters, 75 selfloop transitions, 9 changer transitions 0/544 dead transitions. [2024-11-08 18:43:20,960 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 544 transitions, 3016 flow [2024-11-08 18:43:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:43:20,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-08 18:43:20,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2255 transitions. [2024-11-08 18:43:20,969 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8669742406766628 [2024-11-08 18:43:20,970 INFO L175 Difference]: Start difference. First operand has 294 places, 537 transitions, 2844 flow. Second operand 9 states and 2255 transitions. [2024-11-08 18:43:20,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 544 transitions, 3016 flow [2024-11-08 18:43:21,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 544 transitions, 2998 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-08 18:43:21,654 INFO L231 Difference]: Finished difference. Result has 253 places, 486 transitions, 2732 flow [2024-11-08 18:43:21,655 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=2710, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=484, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=477, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2732, PETRI_PLACES=253, PETRI_TRANSITIONS=486} [2024-11-08 18:43:21,656 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, -21 predicate places. [2024-11-08 18:43:21,656 INFO L471 AbstractCegarLoop]: Abstraction has has 253 places, 486 transitions, 2732 flow [2024-11-08 18:43:21,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 243.6) internal successors, (2436), 10 states have internal predecessors, (2436), 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) [2024-11-08 18:43:21,659 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:21,659 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:21,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:43:21,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-08 18:43:21,861 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 18:43:21,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:21,861 INFO L85 PathProgramCache]: Analyzing trace with hash 169331068, now seen corresponding path program 1 times [2024-11-08 18:43:21,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:21,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49932737] [2024-11-08 18:43:21,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:21,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:22,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:43:22,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:22,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49932737] [2024-11-08 18:43:22,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49932737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:43:22,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:43:22,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:43:22,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601936035] [2024-11-08 18:43:22,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:43:22,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 18:43:22,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:43:22,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 18:43:22,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:43:22,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 200 out of 289 [2024-11-08 18:43:22,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 486 transitions, 2732 flow. Second operand has 6 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 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) [2024-11-08 18:43:22,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 18:43:22,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 200 of 289 [2024-11-08 18:43:22,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 18:43:33,725 INFO L124 PetriNetUnfolderBase]: 20251/44562 cut-off events. [2024-11-08 18:43:33,726 INFO L125 PetriNetUnfolderBase]: For 46891/50069 co-relation queries the response was YES. [2024-11-08 18:43:33,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 134380 conditions, 44562 events. 20251/44562 cut-off events. For 46891/50069 co-relation queries the response was YES. Maximal size of possible extension queue 737. Compared 439570 event pairs, 5319 based on Foata normal form. 80/42831 useless extension candidates. Maximal degree in co-relation 116479. Up to 29015 conditions per place. [2024-11-08 18:43:34,541 INFO L140 encePairwiseOnDemand]: 262/289 looper letters, 338 selfloop transitions, 213 changer transitions 0/717 dead transitions. [2024-11-08 18:43:34,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 717 transitions, 5176 flow [2024-11-08 18:43:34,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:43:34,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 18:43:34,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1372 transitions. [2024-11-08 18:43:34,550 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7912341407151096 [2024-11-08 18:43:34,551 INFO L175 Difference]: Start difference. First operand has 253 places, 486 transitions, 2732 flow. Second operand 6 states and 1372 transitions. [2024-11-08 18:43:34,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 717 transitions, 5176 flow [2024-11-08 18:43:35,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 717 transitions, 5153 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-08 18:43:35,467 INFO L231 Difference]: Finished difference. Result has 258 places, 689 transitions, 5019 flow [2024-11-08 18:43:35,467 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=289, PETRI_DIFFERENCE_MINUEND_FLOW=2709, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=486, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=381, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=5019, PETRI_PLACES=258, PETRI_TRANSITIONS=689} [2024-11-08 18:43:35,468 INFO L277 CegarLoopForPetriNet]: 274 programPoint places, -16 predicate places. [2024-11-08 18:43:35,469 INFO L471 AbstractCegarLoop]: Abstraction has has 258 places, 689 transitions, 5019 flow [2024-11-08 18:43:35,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 203.16666666666666) internal successors, (1219), 6 states have internal predecessors, (1219), 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) [2024-11-08 18:43:35,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 18:43:35,471 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:43:35,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 18:43:35,472 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 13 more)] === [2024-11-08 18:43:35,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:43:35,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1809174235, now seen corresponding path program 1 times [2024-11-08 18:43:35,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:43:35,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612767859] [2024-11-08 18:43:35,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:35,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:43:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 18:43:37,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:43:37,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612767859] [2024-11-08 18:43:37,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612767859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:43:37,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1877370104] [2024-11-08 18:43:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:43:37,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:43:37,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:43:37,054 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:43:37,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f4600bd-0b79-43e9-984f-8b5af00df96f/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:43:37,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:43:37,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 18:43:37,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:43:37,889 INFO L349 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2024-11-08 18:43:37,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2024-11-08 18:43:38,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2024-11-08 18:43:38,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27