./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stateful01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread/stateful01-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu --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 e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 08:00:22,445 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 08:00:22,568 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-19 08:00:22,572 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 08:00:22,573 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 08:00:22,597 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 08:00:22,598 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 08:00:22,598 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 08:00:22,599 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 08:00:22,600 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 08:00:22,601 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 08:00:22,601 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 08:00:22,602 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 08:00:22,602 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 08:00:22,603 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 08:00:22,604 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 08:00:22,604 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 08:00:22,605 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 08:00:22,605 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 08:00:22,606 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 08:00:22,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 08:00:22,607 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 08:00:22,607 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 08:00:22,608 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 08:00:22,608 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 08:00:22,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 08:00:22,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 08:00:22,609 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 08:00:22,610 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 08:00:22,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 08:00:22,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:22,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 08:00:22,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 08:00:22,612 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 08:00:22,612 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 08:00:22,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 08:00:22,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 08:00:22,612 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 08:00:22,613 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 08:00:22,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 08:00:22,613 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 08:00:22,614 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_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2334be94e5a4379173e8ce9878c152630508647bf4da61c6cf055a5b5360d8e [2023-11-19 08:00:22,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 08:00:22,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 08:00:22,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 08:00:22,968 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 08:00:22,968 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 08:00:22,969 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/pthread/stateful01-2.i [2023-11-19 08:00:26,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 08:00:26,429 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 08:00:26,430 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/sv-benchmarks/c/pthread/stateful01-2.i [2023-11-19 08:00:26,446 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/data/5bb8f1282/6c997c9bd3384fc0922ada85e803abf4/FLAG1b36564aa [2023-11-19 08:00:26,461 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/data/5bb8f1282/6c997c9bd3384fc0922ada85e803abf4 [2023-11-19 08:00:26,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 08:00:26,466 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 08:00:26,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:26,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 08:00:26,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 08:00:26,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:26" (1/1) ... [2023-11-19 08:00:26,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f12131c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:26, skipping insertion in model container [2023-11-19 08:00:26,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:00:26" (1/1) ... [2023-11-19 08:00:26,534 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 08:00:26,941 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:26,955 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 08:00:26,999 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 08:00:27,051 INFO L206 MainTranslator]: Completed translation [2023-11-19 08:00:27,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27 WrapperNode [2023-11-19 08:00:27,052 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 08:00:27,053 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:27,053 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 08:00:27,054 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 08:00:27,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,096 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,139 INFO L138 Inliner]: procedures = 168, calls = 35, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 92 [2023-11-19 08:00:27,140 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 08:00:27,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 08:00:27,142 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 08:00:27,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 08:00:27,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,169 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,174 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,195 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,197 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,200 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 08:00:27,201 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 08:00:27,201 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 08:00:27,202 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 08:00:27,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (1/1) ... [2023-11-19 08:00:27,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 08:00:27,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 08:00:27,240 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 08:00:27,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 08:00:27,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 08:00:27,297 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-19 08:00:27,297 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-19 08:00:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-19 08:00:27,298 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-19 08:00:27,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 08:00:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 08:00:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 08:00:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 08:00:27,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 08:00:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 08:00:27,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 08:00:27,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 08:00:27,302 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 08:00:27,526 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 08:00:27,529 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 08:00:27,914 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 08:00:27,926 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 08:00:27,926 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 08:00:27,930 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:27 BoogieIcfgContainer [2023-11-19 08:00:27,931 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 08:00:27,933 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 08:00:27,934 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 08:00:27,937 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 08:00:27,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:00:26" (1/3) ... [2023-11-19 08:00:27,938 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdc050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:27, skipping insertion in model container [2023-11-19 08:00:27,938 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:00:27" (2/3) ... [2023-11-19 08:00:27,939 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fdc050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:00:27, skipping insertion in model container [2023-11-19 08:00:27,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:27" (3/3) ... [2023-11-19 08:00:27,940 INFO L112 eAbstractionObserver]: Analyzing ICFG stateful01-2.i [2023-11-19 08:00:27,949 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 08:00:27,959 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 08:00:27,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2023-11-19 08:00:27,960 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 08:00:28,029 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-19 08:00:28,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 163 places, 159 transitions, 332 flow [2023-11-19 08:00:28,160 INFO L124 PetriNetUnfolderBase]: 3/157 cut-off events. [2023-11-19 08:00:28,160 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:00:28,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 166 conditions, 157 events. 3/157 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 159 event pairs, 0 based on Foata normal form. 0/140 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2023-11-19 08:00:28,164 INFO L82 GeneralOperation]: Start removeDead. Operand has 163 places, 159 transitions, 332 flow [2023-11-19 08:00:28,170 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 142 places, 135 transitions, 282 flow [2023-11-19 08:00:28,174 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-19 08:00:28,183 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 142 places, 135 transitions, 282 flow [2023-11-19 08:00:28,187 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 142 places, 135 transitions, 282 flow [2023-11-19 08:00:28,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 142 places, 135 transitions, 282 flow [2023-11-19 08:00:28,224 INFO L124 PetriNetUnfolderBase]: 0/135 cut-off events. [2023-11-19 08:00:28,224 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-19 08:00:28,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 135 events. 0/135 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 125 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2023-11-19 08:00:28,230 INFO L119 LiptonReduction]: Number of co-enabled transitions 3576 [2023-11-19 08:00:33,034 INFO L134 LiptonReduction]: Checked pairs total: 19088 [2023-11-19 08:00:33,034 INFO L136 LiptonReduction]: Total number of compositions: 100 [2023-11-19 08:00:33,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 08:00:33,060 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4da3d1e1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 08:00:33,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-19 08:00:33,063 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-19 08:00:33,063 INFO L124 PetriNetUnfolderBase]: 0/0 cut-off events. [2023-11-19 08:00:33,063 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 08:00:33,064 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:33,064 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-11-19 08:00:33,065 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:33,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:33,072 INFO L85 PathProgramCache]: Analyzing trace with hash 520, now seen corresponding path program 1 times [2023-11-19 08:00:33,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:33,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967397261] [2023-11-19 08:00:33,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:33,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:33,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:33,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:33,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:33,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967397261] [2023-11-19 08:00:33,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967397261] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:33,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:33,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-19 08:00:33,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813270866] [2023-11-19 08:00:33,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:33,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 08:00:33,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 08:00:33,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 08:00:33,264 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 259 [2023-11-19 08:00:33,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 52 transitions, 116 flow. Second operand has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:33,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:33,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 259 [2023-11-19 08:00:33,268 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:33,414 INFO L124 PetriNetUnfolderBase]: 189/494 cut-off events. [2023-11-19 08:00:33,414 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2023-11-19 08:00:33,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 876 conditions, 494 events. 189/494 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2547 event pairs, 189 based on Foata normal form. 1/443 useless extension candidates. Maximal degree in co-relation 795. Up to 352 conditions per place. [2023-11-19 08:00:33,427 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 21 selfloop transitions, 0 changer transitions 1/46 dead transitions. [2023-11-19 08:00:33,427 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 46 transitions, 148 flow [2023-11-19 08:00:33,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 08:00:33,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-19 08:00:33,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 332 transitions. [2023-11-19 08:00:33,451 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.640926640926641 [2023-11-19 08:00:33,452 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 332 transitions. [2023-11-19 08:00:33,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 332 transitions. [2023-11-19 08:00:33,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:33,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 332 transitions. [2023-11-19 08:00:33,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 166.0) internal successors, (332), 2 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:33,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:33,472 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 259.0) internal successors, (777), 3 states have internal predecessors, (777), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:33,474 INFO L175 Difference]: Start difference. First operand has 59 places, 52 transitions, 116 flow. Second operand 2 states and 332 transitions. [2023-11-19 08:00:33,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 46 transitions, 148 flow [2023-11-19 08:00:33,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 140 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-11-19 08:00:33,482 INFO L231 Difference]: Finished difference. Result has 50 places, 45 transitions, 93 flow [2023-11-19 08:00:33,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=93, PETRI_PLACES=50, PETRI_TRANSITIONS=45} [2023-11-19 08:00:33,491 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -9 predicate places. [2023-11-19 08:00:33,492 INFO L495 AbstractCegarLoop]: Abstraction has has 50 places, 45 transitions, 93 flow [2023-11-19 08:00:33,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 152.5) internal successors, (305), 2 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:33,493 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:33,493 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 08:00:33,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 08:00:33,493 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:33,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash 494993856, now seen corresponding path program 1 times [2023-11-19 08:00:33,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:33,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741099156] [2023-11-19 08:00:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:33,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:33,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:33,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:33,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741099156] [2023-11-19 08:00:33,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741099156] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:33,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:33,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:33,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609838934] [2023-11-19 08:00:33,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:33,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:33,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:33,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:33,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:33,794 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 259 [2023-11-19 08:00:33,795 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 45 transitions, 93 flow. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:33,795 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:33,796 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 259 [2023-11-19 08:00:33,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:34,046 INFO L124 PetriNetUnfolderBase]: 447/1040 cut-off events. [2023-11-19 08:00:34,046 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-19 08:00:34,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1856 conditions, 1040 events. 447/1040 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5997 event pairs, 259 based on Foata normal form. 0/945 useless extension candidates. Maximal degree in co-relation 1853. Up to 547 conditions per place. [2023-11-19 08:00:34,059 INFO L140 encePairwiseOnDemand]: 251/259 looper letters, 46 selfloop transitions, 6 changer transitions 0/69 dead transitions. [2023-11-19 08:00:34,059 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 69 transitions, 247 flow [2023-11-19 08:00:34,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:34,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:34,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 474 transitions. [2023-11-19 08:00:34,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.61003861003861 [2023-11-19 08:00:34,063 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 474 transitions. [2023-11-19 08:00:34,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 474 transitions. [2023-11-19 08:00:34,064 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:34,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 474 transitions. [2023-11-19 08:00:34,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,071 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,071 INFO L175 Difference]: Start difference. First operand has 50 places, 45 transitions, 93 flow. Second operand 3 states and 474 transitions. [2023-11-19 08:00:34,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 69 transitions, 247 flow [2023-11-19 08:00:34,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 69 transitions, 247 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-19 08:00:34,074 INFO L231 Difference]: Finished difference. Result has 53 places, 51 transitions, 145 flow [2023-11-19 08:00:34,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=93, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=45, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=53, PETRI_TRANSITIONS=51} [2023-11-19 08:00:34,076 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -6 predicate places. [2023-11-19 08:00:34,076 INFO L495 AbstractCegarLoop]: Abstraction has has 53 places, 51 transitions, 145 flow [2023-11-19 08:00:34,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,077 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:34,077 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:34,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 08:00:34,077 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:34,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:34,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1906990071, now seen corresponding path program 1 times [2023-11-19 08:00:34,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:34,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279413712] [2023-11-19 08:00:34,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:34,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:34,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:34,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:34,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279413712] [2023-11-19 08:00:34,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279413712] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:34,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:34,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:34,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65044712] [2023-11-19 08:00:34,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:34,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:34,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:34,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:34,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:34,175 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 259 [2023-11-19 08:00:34,176 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 51 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,176 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:34,176 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 259 [2023-11-19 08:00:34,176 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:34,360 INFO L124 PetriNetUnfolderBase]: 395/949 cut-off events. [2023-11-19 08:00:34,360 INFO L125 PetriNetUnfolderBase]: For 213/215 co-relation queries the response was YES. [2023-11-19 08:00:34,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1924 conditions, 949 events. 395/949 cut-off events. For 213/215 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 5498 event pairs, 299 based on Foata normal form. 0/853 useless extension candidates. Maximal degree in co-relation 1919. Up to 643 conditions per place. [2023-11-19 08:00:34,370 INFO L140 encePairwiseOnDemand]: 254/259 looper letters, 37 selfloop transitions, 6 changer transitions 0/65 dead transitions. [2023-11-19 08:00:34,370 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 270 flow [2023-11-19 08:00:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:34,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:34,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 465 transitions. [2023-11-19 08:00:34,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5984555984555985 [2023-11-19 08:00:34,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 465 transitions. [2023-11-19 08:00:34,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 465 transitions. [2023-11-19 08:00:34,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:34,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 465 transitions. [2023-11-19 08:00:34,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,381 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,382 INFO L175 Difference]: Start difference. First operand has 53 places, 51 transitions, 145 flow. Second operand 3 states and 465 transitions. [2023-11-19 08:00:34,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 270 flow [2023-11-19 08:00:34,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 65 transitions, 254 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:34,391 INFO L231 Difference]: Finished difference. Result has 54 places, 55 transitions, 175 flow [2023-11-19 08:00:34,392 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=54, PETRI_TRANSITIONS=55} [2023-11-19 08:00:34,393 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -5 predicate places. [2023-11-19 08:00:34,397 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 55 transitions, 175 flow [2023-11-19 08:00:34,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,398 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:34,399 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:34,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 08:00:34,399 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:34,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:34,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1803462779, now seen corresponding path program 1 times [2023-11-19 08:00:34,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:34,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752446340] [2023-11-19 08:00:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:34,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:34,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:34,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752446340] [2023-11-19 08:00:34,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752446340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:34,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:34,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:34,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192552698] [2023-11-19 08:00:34,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:34,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:34,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:34,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:34,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:34,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 259 [2023-11-19 08:00:34,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 55 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:34,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 259 [2023-11-19 08:00:34,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:34,822 INFO L124 PetriNetUnfolderBase]: 478/1130 cut-off events. [2023-11-19 08:00:34,822 INFO L125 PetriNetUnfolderBase]: For 520/550 co-relation queries the response was YES. [2023-11-19 08:00:34,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2390 conditions, 1130 events. 478/1130 cut-off events. For 520/550 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 6688 event pairs, 310 based on Foata normal form. 8/1048 useless extension candidates. Maximal degree in co-relation 2384. Up to 718 conditions per place. [2023-11-19 08:00:34,836 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 40 selfloop transitions, 9 changer transitions 0/70 dead transitions. [2023-11-19 08:00:34,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 70 transitions, 321 flow [2023-11-19 08:00:34,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:34,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:34,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-11-19 08:00:34,840 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5997425997425997 [2023-11-19 08:00:34,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-11-19 08:00:34,841 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-11-19 08:00:34,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:34,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-11-19 08:00:34,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,847 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,849 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,849 INFO L175 Difference]: Start difference. First operand has 54 places, 55 transitions, 175 flow. Second operand 3 states and 466 transitions. [2023-11-19 08:00:34,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 70 transitions, 321 flow [2023-11-19 08:00:34,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 70 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:34,857 INFO L231 Difference]: Finished difference. Result has 57 places, 60 transitions, 237 flow [2023-11-19 08:00:34,857 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=57, PETRI_TRANSITIONS=60} [2023-11-19 08:00:34,859 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -2 predicate places. [2023-11-19 08:00:34,860 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 60 transitions, 237 flow [2023-11-19 08:00:34,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:34,861 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:34,861 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:34,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 08:00:34,862 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:34,863 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:34,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1232551503, now seen corresponding path program 1 times [2023-11-19 08:00:34,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:34,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465232025] [2023-11-19 08:00:34,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465232025] [2023-11-19 08:00:35,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465232025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 08:00:35,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000408] [2023-11-19 08:00:35,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:35,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:35,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:35,053 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 259 [2023-11-19 08:00:35,054 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 60 transitions, 237 flow. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:35,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 259 [2023-11-19 08:00:35,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:35,159 INFO L124 PetriNetUnfolderBase]: 89/360 cut-off events. [2023-11-19 08:00:35,160 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2023-11-19 08:00:35,161 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 360 events. 89/360 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1567 event pairs, 24 based on Foata normal form. 52/396 useless extension candidates. Maximal degree in co-relation 731. Up to 169 conditions per place. [2023-11-19 08:00:35,164 INFO L140 encePairwiseOnDemand]: 251/259 looper letters, 21 selfloop transitions, 8 changer transitions 0/46 dead transitions. [2023-11-19 08:00:35,164 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 189 flow [2023-11-19 08:00:35,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:35,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:35,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2023-11-19 08:00:35,167 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5868725868725869 [2023-11-19 08:00:35,167 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2023-11-19 08:00:35,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2023-11-19 08:00:35,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:35,168 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2023-11-19 08:00:35,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,175 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,175 INFO L175 Difference]: Start difference. First operand has 57 places, 60 transitions, 237 flow. Second operand 3 states and 456 transitions. [2023-11-19 08:00:35,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 189 flow [2023-11-19 08:00:35,177 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 46 transitions, 155 flow, removed 7 selfloop flow, removed 8 redundant places. [2023-11-19 08:00:35,179 INFO L231 Difference]: Finished difference. Result has 47 places, 41 transitions, 101 flow [2023-11-19 08:00:35,179 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=85, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=101, PETRI_PLACES=47, PETRI_TRANSITIONS=41} [2023-11-19 08:00:35,180 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -12 predicate places. [2023-11-19 08:00:35,180 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 41 transitions, 101 flow [2023-11-19 08:00:35,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,181 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:35,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 08:00:35,182 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:35,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1773082719, now seen corresponding path program 1 times [2023-11-19 08:00:35,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464872108] [2023-11-19 08:00:35,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464872108] [2023-11-19 08:00:35,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464872108] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:35,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938072174] [2023-11-19 08:00:35,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:35,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:35,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:35,257 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 259 [2023-11-19 08:00:35,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 41 transitions, 101 flow. Second operand has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:35,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 259 [2023-11-19 08:00:35,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:35,375 INFO L124 PetriNetUnfolderBase]: 91/326 cut-off events. [2023-11-19 08:00:35,376 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2023-11-19 08:00:35,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 629 conditions, 326 events. 91/326 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1295 event pairs, 66 based on Foata normal form. 0/322 useless extension candidates. Maximal degree in co-relation 625. Up to 162 conditions per place. [2023-11-19 08:00:35,378 INFO L140 encePairwiseOnDemand]: 253/259 looper letters, 25 selfloop transitions, 4 changer transitions 0/44 dead transitions. [2023-11-19 08:00:35,378 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 167 flow [2023-11-19 08:00:35,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2023-11-19 08:00:35,381 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5804375804375804 [2023-11-19 08:00:35,382 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 451 transitions. [2023-11-19 08:00:35,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 451 transitions. [2023-11-19 08:00:35,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:35,382 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 451 transitions. [2023-11-19 08:00:35,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.33333333333334) internal successors, (451), 3 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,388 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,388 INFO L175 Difference]: Start difference. First operand has 47 places, 41 transitions, 101 flow. Second operand 3 states and 451 transitions. [2023-11-19 08:00:35,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 167 flow [2023-11-19 08:00:35,389 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 159 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-19 08:00:35,391 INFO L231 Difference]: Finished difference. Result has 46 places, 39 transitions, 97 flow [2023-11-19 08:00:35,391 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=89, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=97, PETRI_PLACES=46, PETRI_TRANSITIONS=39} [2023-11-19 08:00:35,392 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -13 predicate places. [2023-11-19 08:00:35,392 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 39 transitions, 97 flow [2023-11-19 08:00:35,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.33333333333334) internal successors, (427), 3 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,393 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:35,393 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 08:00:35,394 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:35,394 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,395 INFO L85 PathProgramCache]: Analyzing trace with hash 812796174, now seen corresponding path program 1 times [2023-11-19 08:00:35,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141271423] [2023-11-19 08:00:35,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141271423] [2023-11-19 08:00:35,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141271423] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:35,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434273900] [2023-11-19 08:00:35,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:35,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:35,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:35,488 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 259 [2023-11-19 08:00:35,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 39 transitions, 97 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:35,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 259 [2023-11-19 08:00:35,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:35,583 INFO L124 PetriNetUnfolderBase]: 81/306 cut-off events. [2023-11-19 08:00:35,583 INFO L125 PetriNetUnfolderBase]: For 38/38 co-relation queries the response was YES. [2023-11-19 08:00:35,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 585 conditions, 306 events. 81/306 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1217 event pairs, 76 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 580. Up to 188 conditions per place. [2023-11-19 08:00:35,585 INFO L140 encePairwiseOnDemand]: 256/259 looper letters, 17 selfloop transitions, 2 changer transitions 6/41 dead transitions. [2023-11-19 08:00:35,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 41 transitions, 152 flow [2023-11-19 08:00:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:35,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:35,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 452 transitions. [2023-11-19 08:00:35,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5817245817245817 [2023-11-19 08:00:35,589 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 452 transitions. [2023-11-19 08:00:35,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 452 transitions. [2023-11-19 08:00:35,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:35,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 452 transitions. [2023-11-19 08:00:35,591 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,595 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,595 INFO L175 Difference]: Start difference. First operand has 46 places, 39 transitions, 97 flow. Second operand 3 states and 452 transitions. [2023-11-19 08:00:35,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 41 transitions, 152 flow [2023-11-19 08:00:35,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 144 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:35,598 INFO L231 Difference]: Finished difference. Result has 45 places, 34 transitions, 81 flow [2023-11-19 08:00:35,598 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=87, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=81, PETRI_PLACES=45, PETRI_TRANSITIONS=34} [2023-11-19 08:00:35,599 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -14 predicate places. [2023-11-19 08:00:35,599 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 34 transitions, 81 flow [2023-11-19 08:00:35,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-19 08:00:35,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 08:00:35,601 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 20 more)] === [2023-11-19 08:00:35,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 08:00:35,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1381017208, now seen corresponding path program 1 times [2023-11-19 08:00:35,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 08:00:35,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868053726] [2023-11-19 08:00:35,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 08:00:35,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 08:00:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 08:00:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 08:00:35,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 08:00:35,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868053726] [2023-11-19 08:00:35,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868053726] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 08:00:35,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 08:00:35,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 08:00:35,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912980343] [2023-11-19 08:00:35,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 08:00:35,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 08:00:35,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 08:00:35,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 08:00:35,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 08:00:35,670 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 259 [2023-11-19 08:00:35,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 34 transitions, 81 flow. Second operand has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-19 08:00:35,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 259 [2023-11-19 08:00:35,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-19 08:00:35,733 INFO L124 PetriNetUnfolderBase]: 48/209 cut-off events. [2023-11-19 08:00:35,733 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2023-11-19 08:00:35,734 INFO L83 FinitePrefix]: Finished finitePrefix Result has 371 conditions, 209 events. 48/209 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 748 event pairs, 43 based on Foata normal form. 8/215 useless extension candidates. Maximal degree in co-relation 366. Up to 113 conditions per place. [2023-11-19 08:00:35,734 INFO L140 encePairwiseOnDemand]: 257/259 looper letters, 0 selfloop transitions, 0 changer transitions 36/36 dead transitions. [2023-11-19 08:00:35,734 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 36 transitions, 128 flow [2023-11-19 08:00:35,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 08:00:35,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-19 08:00:35,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 448 transitions. [2023-11-19 08:00:35,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5765765765765766 [2023-11-19 08:00:35,737 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 448 transitions. [2023-11-19 08:00:35,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 448 transitions. [2023-11-19 08:00:35,738 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-19 08:00:35,738 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 448 transitions. [2023-11-19 08:00:35,740 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 149.33333333333334) internal successors, (448), 3 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,743 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 259.0) internal successors, (1036), 4 states have internal predecessors, (1036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,743 INFO L175 Difference]: Start difference. First operand has 45 places, 34 transitions, 81 flow. Second operand 3 states and 448 transitions. [2023-11-19 08:00:35,743 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 36 transitions, 128 flow [2023-11-19 08:00:35,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 36 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-19 08:00:35,744 INFO L231 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2023-11-19 08:00:35,745 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=259, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2023-11-19 08:00:35,746 INFO L281 CegarLoopForPetriNet]: 59 programPoint places, -19 predicate places. [2023-11-19 08:00:35,746 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2023-11-19 08:00:35,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.0) internal successors, (435), 3 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 08:00:35,749 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-11-19 08:00:35,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-11-19 08:00:35,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-11-19 08:00:35,750 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-11-19 08:00:35,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-11-19 08:00:35,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (18 of 24 remaining) [2023-11-19 08:00:35,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-11-19 08:00:35,751 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-11-19 08:00:35,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-11-19 08:00:35,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-11-19 08:00:35,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-11-19 08:00:35,752 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-11-19 08:00:35,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-11-19 08:00:35,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-11-19 08:00:35,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 24 remaining) [2023-11-19 08:00:35,753 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 24 remaining) [2023-11-19 08:00:35,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-11-19 08:00:35,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-11-19 08:00:35,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-11-19 08:00:35,754 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-11-19 08:00:35,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-11-19 08:00:35,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-11-19 08:00:35,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-11-19 08:00:35,755 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-11-19 08:00:35,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-19 08:00:35,756 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 08:00:35,762 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 08:00:35,762 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 08:00:35,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:00:35 BasicIcfg [2023-11-19 08:00:35,766 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 08:00:35,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 08:00:35,767 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 08:00:35,767 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 08:00:35,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:00:27" (3/4) ... [2023-11-19 08:00:35,769 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 08:00:35,773 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2023-11-19 08:00:35,773 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2023-11-19 08:00:35,779 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-19 08:00:35,780 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 08:00:35,780 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 08:00:35,780 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 08:00:35,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml [2023-11-19 08:00:35,879 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/witness.yml [2023-11-19 08:00:35,880 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 08:00:35,880 INFO L158 Benchmark]: Toolchain (without parser) took 9414.78ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 107.2MB in the beginning and 89.5MB in the end (delta: 17.7MB). Peak memory consumption was 61.8MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,881 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 08:00:35,881 INFO L158 Benchmark]: CACSL2BoogieTranslator took 585.25ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 86.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,882 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.98ms. Allocated memory is still 148.9MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,882 INFO L158 Benchmark]: Boogie Preprocessor took 59.59ms. Allocated memory is still 148.9MB. Free memory was 84.5MB in the beginning and 83.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,883 INFO L158 Benchmark]: RCFGBuilder took 729.56ms. Allocated memory is still 148.9MB. Free memory was 83.0MB in the beginning and 64.7MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,883 INFO L158 Benchmark]: TraceAbstraction took 7832.76ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 64.1MB in the beginning and 94.8MB in the end (delta: -30.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,884 INFO L158 Benchmark]: Witness Printer took 113.20ms. Allocated memory is still 190.8MB. Free memory was 94.8MB in the beginning and 89.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 08:00:35,886 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 148.9MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 585.25ms. Allocated memory is still 148.9MB. Free memory was 106.6MB in the beginning and 86.6MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.98ms. Allocated memory is still 148.9MB. Free memory was 86.6MB in the beginning and 84.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.59ms. Allocated memory is still 148.9MB. Free memory was 84.5MB in the beginning and 83.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 729.56ms. Allocated memory is still 148.9MB. Free memory was 83.0MB in the beginning and 64.7MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 7832.76ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 64.1MB in the beginning and 94.8MB in the end (delta: -30.6MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 113.20ms. Allocated memory is still 190.8MB. Free memory was 94.8MB in the beginning and 89.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8s, 142 PlacesBefore, 59 PlacesAfterwards, 135 TransitionsBefore, 52 TransitionsAfterwards, 3576 CoEnabledTransitionPairs, 8 FixpointIterations, 57 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 100 TotalNumberOfCompositions, 19088 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 7557, independent: 6927, independent conditional: 0, independent unconditional: 6927, dependent: 630, dependent conditional: 0, dependent unconditional: 630, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1862, independent: 1799, independent conditional: 0, independent unconditional: 1799, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7557, independent: 5128, independent conditional: 0, independent unconditional: 5128, dependent: 567, dependent conditional: 0, dependent unconditional: 567, unknown: 1862, unknown conditional: 0, unknown unconditional: 1862] , Statistics on independence cache: Total cache size (in pairs): 398, Positive cache size: 360, Positive conditional cache size: 0, Positive unconditional cache size: 360, Negative cache size: 38, Negative conditional cache size: 0, Negative unconditional cache size: 38, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 697]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 707]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 710]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 719]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 720]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 723]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 724]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 725]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 219 locations, 24 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 7.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 305 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 33 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 537 IncrementalHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 33 mSolverCounterUnsat, 43 mSDtfsCounter, 537 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=237occurred in iteration=4, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-19 08:00:35,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32def61e-5001-411d-8d45-1a21f2ae7a29/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE