./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:46:38,921 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:46:39,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 10:46:39,046 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:46:39,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:46:39,086 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:46:39,087 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:46:39,088 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:46:39,089 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:46:39,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:46:39,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:46:39,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:46:39,096 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:46:39,098 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:46:39,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:46:39,099 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:46:39,099 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:46:39,100 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:46:39,100 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:46:39,101 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:46:39,101 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:46:39,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:46:39,102 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 10:46:39,103 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 10:46:39,103 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:46:39,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:46:39,104 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:46:39,105 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:46:39,106 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:46:39,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:46:39,108 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:39,108 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:46:39,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:46:39,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:46:39,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:46:39,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:46:39,110 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:46:39,110 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:46:39,111 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:46:39,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:46:39,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:46:39,112 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_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b589988edaaecd88451f82bd4303dff81e52948b89e1e090cb7433d59bd20b [2023-11-26 10:46:39,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:46:39,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:46:39,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:46:39,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:46:39,453 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:46:39,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2023-11-26 10:46:42,622 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:46:42,944 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:46:42,945 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/sv-benchmarks/c/goblint-regression/04-mutex_07-ps_nr.i [2023-11-26 10:46:42,969 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/data/686766f9a/a4537209ab0040498b1df1baf9d9527c/FLAG39d3ec071 [2023-11-26 10:46:42,987 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/data/686766f9a/a4537209ab0040498b1df1baf9d9527c [2023-11-26 10:46:42,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:46:42,995 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:46:42,998 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:42,999 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:46:43,004 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:46:43,005 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:42" (1/1) ... [2023-11-26 10:46:43,006 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d6308c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43, skipping insertion in model container [2023-11-26 10:46:43,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:46:42" (1/1) ... [2023-11-26 10:46:43,074 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:46:43,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:43,639 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:46:43,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:46:43,799 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:46:43,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43 WrapperNode [2023-11-26 10:46:43,800 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:46:43,801 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:43,801 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:46:43,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:46:43,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,874 INFO L138 Inliner]: procedures = 267, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-11-26 10:46:43,874 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:46:43,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:46:43,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:46:43,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:46:43,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,898 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,907 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,926 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,928 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:46:43,937 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:46:43,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:46:43,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:46:43,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (1/1) ... [2023-11-26 10:46:43,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:46:43,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:46:44,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:46:44,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:46:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 10:46:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 10:46:44,046 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 10:46:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 10:46:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 10:46:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:46:44,047 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-26 10:46:44,047 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-26 10:46:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 10:46:44,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:46:44,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:46:44,078 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 10:46:44,214 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:46:44,216 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:46:44,360 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:46:44,394 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:46:44,394 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 10:46:44,395 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:44 BoogieIcfgContainer [2023-11-26 10:46:44,395 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:46:44,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:46:44,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:46:44,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:46:44,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:46:42" (1/3) ... [2023-11-26 10:46:44,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8adf272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:44, skipping insertion in model container [2023-11-26 10:46:44,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:46:43" (2/3) ... [2023-11-26 10:46:44,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8adf272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:46:44, skipping insertion in model container [2023-11-26 10:46:44,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:44" (3/3) ... [2023-11-26 10:46:44,405 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_07-ps_nr.i [2023-11-26 10:46:44,413 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 10:46:44,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:46:44,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 10:46:44,422 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 10:46:44,472 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-26 10:46:44,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 73 places, 72 transitions, 148 flow [2023-11-26 10:46:44,556 INFO L124 PetriNetUnfolderBase]: 3/71 cut-off events. [2023-11-26 10:46:44,558 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:46:44,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 3/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2023-11-26 10:46:44,563 INFO L82 GeneralOperation]: Start removeDead. Operand has 73 places, 72 transitions, 148 flow [2023-11-26 10:46:44,568 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 71 transitions, 145 flow [2023-11-26 10:46:44,579 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:46:44,587 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;@ba94cf7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:46:44,587 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-11-26 10:46:44,601 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 10:46:44,602 INFO L124 PetriNetUnfolderBase]: 0/30 cut-off events. [2023-11-26 10:46:44,602 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 10:46:44,602 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:44,603 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:44,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 10:46:44,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:44,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1391925088, now seen corresponding path program 1 times [2023-11-26 10:46:44,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:44,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029507381] [2023-11-26 10:46:44,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:44,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:44,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:45,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:45,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:45,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029507381] [2023-11-26 10:46:45,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029507381] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:45,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:45,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:45,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416099075] [2023-11-26 10:46:45,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:45,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:45,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:45,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:45,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:45,114 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 72 [2023-11-26 10:46:45,119 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,119 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:45,119 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 72 [2023-11-26 10:46:45,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:45,281 INFO L124 PetriNetUnfolderBase]: 47/283 cut-off events. [2023-11-26 10:46:45,281 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-26 10:46:45,284 INFO L83 FinitePrefix]: Finished finitePrefix Result has 377 conditions, 283 events. 47/283 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1313 event pairs, 10 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 350. Up to 48 conditions per place. [2023-11-26 10:46:45,289 INFO L140 encePairwiseOnDemand]: 64/72 looper letters, 17 selfloop transitions, 6 changer transitions 0/81 dead transitions. [2023-11-26 10:46:45,297 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 211 flow [2023-11-26 10:46:45,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:45,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 202 transitions. [2023-11-26 10:46:45,315 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9351851851851852 [2023-11-26 10:46:45,316 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 202 transitions. [2023-11-26 10:46:45,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 202 transitions. [2023-11-26 10:46:45,319 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:45,322 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 202 transitions. [2023-11-26 10:46:45,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,339 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,339 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,342 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 145 flow. Second operand 3 states and 202 transitions. [2023-11-26 10:46:45,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 211 flow [2023-11-26 10:46:45,351 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 81 transitions, 210 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 10:46:45,357 INFO L231 Difference]: Finished difference. Result has 75 places, 77 transitions, 196 flow [2023-11-26 10:46:45,359 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=75, PETRI_TRANSITIONS=77} [2023-11-26 10:46:45,364 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 3 predicate places. [2023-11-26 10:46:45,364 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 77 transitions, 196 flow [2023-11-26 10:46:45,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,365 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:45,365 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:45,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:46:45,366 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 10:46:45,367 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:45,367 INFO L85 PathProgramCache]: Analyzing trace with hash -561656397, now seen corresponding path program 1 times [2023-11-26 10:46:45,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:45,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133495419] [2023-11-26 10:46:45,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:45,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:45,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:45,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:45,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:45,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133495419] [2023-11-26 10:46:45,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133495419] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:45,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:45,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:45,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462811039] [2023-11-26 10:46:45,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:45,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:45,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:45,505 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 72 [2023-11-26 10:46:45,506 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 77 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,506 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:45,507 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 72 [2023-11-26 10:46:45,507 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:45,591 INFO L124 PetriNetUnfolderBase]: 53/286 cut-off events. [2023-11-26 10:46:45,591 INFO L125 PetriNetUnfolderBase]: For 86/93 co-relation queries the response was YES. [2023-11-26 10:46:45,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 489 conditions, 286 events. 53/286 cut-off events. For 86/93 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1471 event pairs, 21 based on Foata normal form. 1/256 useless extension candidates. Maximal degree in co-relation 461. Up to 86 conditions per place. [2023-11-26 10:46:45,600 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 16 selfloop transitions, 7 changer transitions 2/84 dead transitions. [2023-11-26 10:46:45,600 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 268 flow [2023-11-26 10:46:45,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:45,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2023-11-26 10:46:45,618 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9120370370370371 [2023-11-26 10:46:45,619 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 197 transitions. [2023-11-26 10:46:45,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 197 transitions. [2023-11-26 10:46:45,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:45,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 197 transitions. [2023-11-26 10:46:45,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,625 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,626 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,626 INFO L175 Difference]: Start difference. First operand has 75 places, 77 transitions, 196 flow. Second operand 3 states and 197 transitions. [2023-11-26 10:46:45,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 268 flow [2023-11-26 10:46:45,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 84 transitions, 252 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:45,633 INFO L231 Difference]: Finished difference. Result has 77 places, 81 transitions, 238 flow [2023-11-26 10:46:45,634 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=238, PETRI_PLACES=77, PETRI_TRANSITIONS=81} [2023-11-26 10:46:45,635 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 5 predicate places. [2023-11-26 10:46:45,635 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 81 transitions, 238 flow [2023-11-26 10:46:45,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,636 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:45,636 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:45,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:46:45,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 10:46:45,639 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:45,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1912587924, now seen corresponding path program 1 times [2023-11-26 10:46:45,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:45,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083133084] [2023-11-26 10:46:45,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:45,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:45,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:45,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:45,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:45,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083133084] [2023-11-26 10:46:45,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083133084] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:45,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:45,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:46:45,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546266867] [2023-11-26 10:46:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:45,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:45,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:45,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:45,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:45,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 72 [2023-11-26 10:46:45,762 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 81 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,762 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:45,762 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 72 [2023-11-26 10:46:45,762 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:45,844 INFO L124 PetriNetUnfolderBase]: 43/336 cut-off events. [2023-11-26 10:46:45,844 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2023-11-26 10:46:45,849 INFO L83 FinitePrefix]: Finished finitePrefix Result has 532 conditions, 336 events. 43/336 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1732 event pairs, 15 based on Foata normal form. 3/311 useless extension candidates. Maximal degree in co-relation 501. Up to 58 conditions per place. [2023-11-26 10:46:45,851 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 11 selfloop transitions, 2 changer transitions 3/84 dead transitions. [2023-11-26 10:46:45,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 84 transitions, 276 flow [2023-11-26 10:46:45,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:45,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 191 transitions. [2023-11-26 10:46:45,855 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8842592592592593 [2023-11-26 10:46:45,855 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 191 transitions. [2023-11-26 10:46:45,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 191 transitions. [2023-11-26 10:46:45,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:45,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 191 transitions. [2023-11-26 10:46:45,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,860 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,860 INFO L175 Difference]: Start difference. First operand has 77 places, 81 transitions, 238 flow. Second operand 3 states and 191 transitions. [2023-11-26 10:46:45,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 84 transitions, 276 flow [2023-11-26 10:46:45,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 84 transitions, 262 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-11-26 10:46:45,870 INFO L231 Difference]: Finished difference. Result has 78 places, 81 transitions, 234 flow [2023-11-26 10:46:45,870 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=78, PETRI_TRANSITIONS=81} [2023-11-26 10:46:45,872 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 6 predicate places. [2023-11-26 10:46:45,872 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 81 transitions, 234 flow [2023-11-26 10:46:45,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:45,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:45,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 10:46:45,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 10:46:45,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:45,876 INFO L85 PathProgramCache]: Analyzing trace with hash 28644379, now seen corresponding path program 1 times [2023-11-26 10:46:45,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:45,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12270313] [2023-11-26 10:46:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:45,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:45,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:45,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:45,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12270313] [2023-11-26 10:46:45,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12270313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:45,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:45,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:46:45,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18271824] [2023-11-26 10:46:45,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:45,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:45,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:45,982 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 72 [2023-11-26 10:46:45,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 81 transitions, 234 flow. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:45,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:45,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 72 [2023-11-26 10:46:45,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:46,061 INFO L124 PetriNetUnfolderBase]: 74/408 cut-off events. [2023-11-26 10:46:46,061 INFO L125 PetriNetUnfolderBase]: For 138/144 co-relation queries the response was YES. [2023-11-26 10:46:46,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 408 events. 74/408 cut-off events. For 138/144 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2274 event pairs, 25 based on Foata normal form. 4/391 useless extension candidates. Maximal degree in co-relation 724. Up to 124 conditions per place. [2023-11-26 10:46:46,064 INFO L140 encePairwiseOnDemand]: 66/72 looper letters, 18 selfloop transitions, 7 changer transitions 6/88 dead transitions. [2023-11-26 10:46:46,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 88 transitions, 318 flow [2023-11-26 10:46:46,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:46,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:46,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 193 transitions. [2023-11-26 10:46:46,066 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.8935185185185185 [2023-11-26 10:46:46,066 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 193 transitions. [2023-11-26 10:46:46,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 193 transitions. [2023-11-26 10:46:46,067 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:46,067 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 193 transitions. [2023-11-26 10:46:46,068 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,069 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,070 INFO L175 Difference]: Start difference. First operand has 78 places, 81 transitions, 234 flow. Second operand 3 states and 193 transitions. [2023-11-26 10:46:46,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 88 transitions, 318 flow [2023-11-26 10:46:46,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 88 transitions, 314 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-11-26 10:46:46,074 INFO L231 Difference]: Finished difference. Result has 81 places, 81 transitions, 266 flow [2023-11-26 10:46:46,075 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=81, PETRI_TRANSITIONS=81} [2023-11-26 10:46:46,075 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, 9 predicate places. [2023-11-26 10:46:46,076 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 81 transitions, 266 flow [2023-11-26 10:46:46,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,076 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 10:46:46,076 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:46:46,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 10:46:46,077 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-11-26 10:46:46,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:46:46,078 INFO L85 PathProgramCache]: Analyzing trace with hash 2135041295, now seen corresponding path program 1 times [2023-11-26 10:46:46,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:46:46,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535150026] [2023-11-26 10:46:46,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:46:46,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:46:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:46:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 10:46:46,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:46:46,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535150026] [2023-11-26 10:46:46,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535150026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:46:46,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:46:46,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 10:46:46,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615375307] [2023-11-26 10:46:46,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:46:46,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 10:46:46,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:46:46,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 10:46:46,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 10:46:46,245 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 72 [2023-11-26 10:46:46,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 81 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 10:46:46,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 72 [2023-11-26 10:46:46,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 10:46:46,270 INFO L124 PetriNetUnfolderBase]: 1/109 cut-off events. [2023-11-26 10:46:46,270 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2023-11-26 10:46:46,271 INFO L83 FinitePrefix]: Finished finitePrefix Result has 169 conditions, 109 events. 1/109 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 148 event pairs, 1 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 141. Up to 8 conditions per place. [2023-11-26 10:46:46,271 INFO L140 encePairwiseOnDemand]: 68/72 looper letters, 0 selfloop transitions, 0 changer transitions 66/66 dead transitions. [2023-11-26 10:46:46,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 66 transitions, 188 flow [2023-11-26 10:46:46,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 10:46:46,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 10:46:46,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2023-11-26 10:46:46,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.9537037037037037 [2023-11-26 10:46:46,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 206 transitions. [2023-11-26 10:46:46,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 206 transitions. [2023-11-26 10:46:46,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 10:46:46,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 206 transitions. [2023-11-26 10:46:46,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,275 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,276 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,276 INFO L175 Difference]: Start difference. First operand has 81 places, 81 transitions, 266 flow. Second operand 3 states and 206 transitions. [2023-11-26 10:46:46,276 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 66 transitions, 188 flow [2023-11-26 10:46:46,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 66 transitions, 152 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-11-26 10:46:46,278 INFO L231 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2023-11-26 10:46:46,278 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2023-11-26 10:46:46,279 INFO L281 CegarLoopForPetriNet]: 72 programPoint places, -1 predicate places. [2023-11-26 10:46:46,279 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2023-11-26 10:46:46,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 10:46:46,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2023-11-26 10:46:46,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2023-11-26 10:46:46,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2023-11-26 10:46:46,283 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2023-11-26 10:46:46,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2023-11-26 10:46:46,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2023-11-26 10:46:46,284 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2023-11-26 10:46:46,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-26 10:46:46,285 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-26 10:46:46,290 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-26 10:46:46,291 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:46:46,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:46:46 BasicIcfg [2023-11-26 10:46:46,297 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:46:46,298 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:46:46,298 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:46:46,299 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:46:46,299 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:46:44" (3/4) ... [2023-11-26 10:46:46,301 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 10:46:46,305 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2023-11-26 10:46:46,310 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-26 10:46:46,310 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:46:46,310 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-26 10:46:46,406 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 10:46:46,406 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 10:46:46,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:46:46,407 INFO L158 Benchmark]: Toolchain (without parser) took 3411.94ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 89.3MB in the beginning and 70.4MB in the end (delta: 18.8MB). Peak memory consumption was 65.7MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,408 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:46:46,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.97ms. Allocated memory is still 134.2MB. Free memory was 89.3MB in the beginning and 60.9MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,408 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.43ms. Allocated memory is still 134.2MB. Free memory was 60.9MB in the beginning and 58.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,409 INFO L158 Benchmark]: Boogie Preprocessor took 60.63ms. Allocated memory is still 134.2MB. Free memory was 58.7MB in the beginning and 57.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,409 INFO L158 Benchmark]: RCFGBuilder took 458.85ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 57.4MB in the beginning and 140.6MB in the end (delta: -83.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,410 INFO L158 Benchmark]: TraceAbstraction took 1899.75ms. Allocated memory is still 180.4MB. Free memory was 139.6MB in the beginning and 74.6MB in the end (delta: 65.0MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,410 INFO L158 Benchmark]: Witness Printer took 108.09ms. Allocated memory is still 180.4MB. Free memory was 74.6MB in the beginning and 70.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:46:46,413 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 108.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.97ms. Allocated memory is still 134.2MB. Free memory was 89.3MB in the beginning and 60.9MB in the end (delta: 28.4MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.43ms. Allocated memory is still 134.2MB. Free memory was 60.9MB in the beginning and 58.7MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.63ms. Allocated memory is still 134.2MB. Free memory was 58.7MB in the beginning and 57.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.85ms. Allocated memory was 134.2MB in the beginning and 180.4MB in the end (delta: 46.1MB). Free memory was 57.4MB in the beginning and 140.6MB in the end (delta: -83.2MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1899.75ms. Allocated memory is still 180.4MB. Free memory was 139.6MB in the beginning and 74.6MB in the end (delta: 65.0MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Witness Printer took 108.09ms. Allocated memory is still 180.4MB. Free memory was 74.6MB in the beginning and 70.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 945]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 932]: 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 3 procedures, 90 locations, 7 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: 1.8s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 137 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 9 mSDtfsCounter, 137 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=4, InterpolantAutomatonStates: 15, 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, 0.5s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 162 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 10:46:46,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6698b2c9-e51b-4933-b3a5-2005a4cf6173/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE