./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1 --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 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:43:53,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:43:53,092 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-12-02 07:43:53,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:43:53,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:43:53,118 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:43:53,119 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:43:53,119 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:43:53,119 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:43:53,119 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:43:53,120 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:43:53,120 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:43:53,120 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:43:53,120 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:43:53,120 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:43:53,120 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:43:53,120 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:43:53,121 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:43:53,122 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:43:53,122 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:43:53,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:43:53,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:43:53,123 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1 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 -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2024-12-02 07:43:53,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:43:53,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:43:53,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:43:53,337 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:43:53,337 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:43:53,338 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2024-12-02 07:43:55,983 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/data/93f4e56f6/5aa7e6fa84fc47cbaac21b8cb1125458/FLAGa49b57d4d [2024-12-02 07:43:56,218 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:43:56,219 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2024-12-02 07:43:56,231 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/data/93f4e56f6/5aa7e6fa84fc47cbaac21b8cb1125458/FLAGa49b57d4d [2024-12-02 07:43:56,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/data/93f4e56f6/5aa7e6fa84fc47cbaac21b8cb1125458 [2024-12-02 07:43:56,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:43:56,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:43:56,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:43:56,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:43:56,253 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:43:56,254 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b53f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56, skipping insertion in model container [2024-12-02 07:43:56,255 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,279 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:43:56,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:43:56,553 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:43:56,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:43:56,624 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:43:56,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56 WrapperNode [2024-12-02 07:43:56,625 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:43:56,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:43:56,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:43:56,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:43:56,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,641 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,658 INFO L138 Inliner]: procedures = 173, calls = 42, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 310 [2024-12-02 07:43:56,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:43:56,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:43:56,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:43:56,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:43:56,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,666 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,670 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,670 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,681 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,683 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,687 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,694 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:43:56,695 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:43:56,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:43:56,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:43:56,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (1/1) ... [2024-12-02 07:43:56,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:43:56,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:43:56,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:43:56,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b67fede1-2b13-4f44-abca-998c2b8565e6/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:43:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-02 07:43:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-12-02 07:43:56,739 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-12-02 07:43:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-02 07:43:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-12-02 07:43:56,739 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:43:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:43:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-12-02 07:43:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-12-02 07:43:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:43:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-02 07:43:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-12-02 07:43:56,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:43:56,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:43:56,741 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-12-02 07:43:56,852 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:43:56,854 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:43:57,219 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-12-02 07:43:57,219 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:43:57,258 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:43:57,258 INFO L312 CfgBuilder]: Removed 14 assume(true) statements. [2024-12-02 07:43:57,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:43:57 BoogieIcfgContainer [2024-12-02 07:43:57,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:43:57,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:43:57,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:43:57,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:43:57,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:43:56" (1/3) ... [2024-12-02 07:43:57,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f149c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:43:57, skipping insertion in model container [2024-12-02 07:43:57,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:43:56" (2/3) ... [2024-12-02 07:43:57,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f149c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:43:57, skipping insertion in model container [2024-12-02 07:43:57,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:43:57" (3/3) ... [2024-12-02 07:43:57,269 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2024-12-02 07:43:57,283 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:43:57,284 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_04-munge_racefree.i that has 3 procedures, 297 locations, 1 initial locations, 14 loop locations, and 14 error locations. [2024-12-02 07:43:57,284 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-12-02 07:43:57,375 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-12-02 07:43:57,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 303 places, 332 transitions, 684 flow [2024-12-02 07:43:57,577 INFO L124 PetriNetUnfolderBase]: 61/591 cut-off events. [2024-12-02 07:43:57,579 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-12-02 07:43:57,590 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 591 events. 61/591 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2715 event pairs, 0 based on Foata normal form. 0/495 useless extension candidates. Maximal degree in co-relation 307. Up to 8 conditions per place. [2024-12-02 07:43:57,590 INFO L82 GeneralOperation]: Start removeDead. Operand has 303 places, 332 transitions, 684 flow [2024-12-02 07:43:57,598 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 303 places, 332 transitions, 684 flow [2024-12-02 07:43:57,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:43:57,614 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f78ccb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:43:57,614 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-12-02 07:43:57,627 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:43:57,628 INFO L124 PetriNetUnfolderBase]: 4/114 cut-off events. [2024-12-02 07:43:57,628 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:43:57,628 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:43:57,628 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:43:57,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 07:43:57,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:43:57,633 INFO L85 PathProgramCache]: Analyzing trace with hash 572623980, now seen corresponding path program 1 times [2024-12-02 07:43:57,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:43:57,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297157048] [2024-12-02 07:43:57,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:43:57,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:43:57,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:43:58,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:43:58,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:43:58,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297157048] [2024-12-02 07:43:58,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297157048] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:43:58,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:43:58,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:43:58,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519699993] [2024-12-02 07:43:58,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:43:58,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:43:58,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:43:58,506 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:43:58,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:43:58,697 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 332 [2024-12-02 07:43:58,702 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 332 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:43:58,702 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:43:58,702 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 332 [2024-12-02 07:43:58,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:44:01,184 INFO L124 PetriNetUnfolderBase]: 2588/13884 cut-off events. [2024-12-02 07:44:01,185 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-12-02 07:44:01,227 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17979 conditions, 13884 events. 2588/13884 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 454. Compared 175762 event pairs, 2214 based on Foata normal form. 3088/15693 useless extension candidates. Maximal degree in co-relation 16170. Up to 3931 conditions per place. [2024-12-02 07:44:01,284 INFO L140 encePairwiseOnDemand]: 298/332 looper letters, 74 selfloop transitions, 5 changer transitions 0/331 dead transitions. [2024-12-02 07:44:01,284 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 331 transitions, 840 flow [2024-12-02 07:44:01,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:44:01,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-12-02 07:44:01,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1680 transitions. [2024-12-02 07:44:01,303 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8433734939759037 [2024-12-02 07:44:01,305 INFO L175 Difference]: Start difference. First operand has 303 places, 332 transitions, 684 flow. Second operand 6 states and 1680 transitions. [2024-12-02 07:44:01,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 331 transitions, 840 flow [2024-12-02 07:44:01,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 331 transitions, 840 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-12-02 07:44:01,320 INFO L231 Difference]: Finished difference. Result has 303 places, 299 transitions, 628 flow [2024-12-02 07:44:01,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=628, PETRI_PLACES=303, PETRI_TRANSITIONS=299} [2024-12-02 07:44:01,327 INFO L279 CegarLoopForPetriNet]: 303 programPoint places, 0 predicate places. [2024-12-02 07:44:01,327 INFO L471 AbstractCegarLoop]: Abstraction has has 303 places, 299 transitions, 628 flow [2024-12-02 07:44:01,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 255.5) internal successors, (1533), 6 states have internal predecessors, (1533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:44:01,328 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:44:01,328 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:01,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 07:44:01,328 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 07:44:01,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:01,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1798372494, now seen corresponding path program 1 times [2024-12-02 07:44:01,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:44:01,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744992943] [2024-12-02 07:44:01,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:01,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:44:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:44:01,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:44:01,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744992943] [2024-12-02 07:44:01,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744992943] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:44:01,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:44:01,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:44:01,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959210936] [2024-12-02 07:44:01,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:44:01,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:44:01,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:44:01,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:44:01,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:44:01,476 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 332 [2024-12-02 07:44:01,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 299 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:44:01,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:44:01,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 332 [2024-12-02 07:44:01,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-12-02 07:44:01,939 INFO L124 PetriNetUnfolderBase]: 332/2994 cut-off events. [2024-12-02 07:44:01,939 INFO L125 PetriNetUnfolderBase]: For 139/139 co-relation queries the response was YES. [2024-12-02 07:44:01,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3655 conditions, 2994 events. 332/2994 cut-off events. For 139/139 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 27513 event pairs, 96 based on Foata normal form. 1/2678 useless extension candidates. Maximal degree in co-relation 3163. Up to 538 conditions per place. [2024-12-02 07:44:01,951 INFO L140 encePairwiseOnDemand]: 329/332 looper letters, 34 selfloop transitions, 2 changer transitions 0/307 dead transitions. [2024-12-02 07:44:01,951 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 307 transitions, 716 flow [2024-12-02 07:44:01,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:44:01,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-12-02 07:44:01,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 859 transitions. [2024-12-02 07:44:01,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8624497991967871 [2024-12-02 07:44:01,955 INFO L175 Difference]: Start difference. First operand has 303 places, 299 transitions, 628 flow. Second operand 3 states and 859 transitions. [2024-12-02 07:44:01,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 307 transitions, 716 flow [2024-12-02 07:44:01,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 307 transitions, 706 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-12-02 07:44:01,959 INFO L231 Difference]: Finished difference. Result has 301 places, 299 transitions, 626 flow [2024-12-02 07:44:01,960 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=332, PETRI_DIFFERENCE_MINUEND_FLOW=618, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=297, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=626, PETRI_PLACES=301, PETRI_TRANSITIONS=299} [2024-12-02 07:44:01,960 INFO L279 CegarLoopForPetriNet]: 303 programPoint places, -2 predicate places. [2024-12-02 07:44:01,960 INFO L471 AbstractCegarLoop]: Abstraction has has 301 places, 299 transitions, 626 flow [2024-12-02 07:44:01,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:44:01,961 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:44:01,961 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:01,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:44:01,961 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 22 more)] === [2024-12-02 07:44:01,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:01,962 INFO L85 PathProgramCache]: Analyzing trace with hash 65478091, now seen corresponding path program 1 times [2024-12-02 07:44:01,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:44:01,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169874027] [2024-12-02 07:44:01,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:01,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:44:01,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:44:01,994 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:44:02,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:44:02,041 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 07:44:02,041 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 07:44:02,042 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-12-02 07:44:02,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (24 of 26 remaining) [2024-12-02 07:44:02,043 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (23 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (22 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (21 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (20 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (19 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (18 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (16 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (15 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (14 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (12 of 26 remaining) [2024-12-02 07:44:02,044 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (11 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (9 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (8 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (6 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (5 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 26 remaining) [2024-12-02 07:44:02,045 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 26 remaining) [2024-12-02 07:44:02,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:44:02,046 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-12-02 07:44:02,049 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-12-02 07:44:02,049 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-12-02 07:44:02,115 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-12-02 07:44:02,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 451 places, 506 transitions, 1056 flow [2024-12-02 07:44:02,360 INFO L124 PetriNetUnfolderBase]: 205/1623 cut-off events. [2024-12-02 07:44:02,360 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-12-02 07:44:02,376 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1712 conditions, 1623 events. 205/1623 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 10207 event pairs, 2 based on Foata normal form. 0/1347 useless extension candidates. Maximal degree in co-relation 998. Up to 32 conditions per place. [2024-12-02 07:44:02,377 INFO L82 GeneralOperation]: Start removeDead. Operand has 451 places, 506 transitions, 1056 flow [2024-12-02 07:44:02,424 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 451 places, 506 transitions, 1056 flow [2024-12-02 07:44:02,425 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:44:02,426 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3f78ccb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:44:02,426 INFO L334 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2024-12-02 07:44:02,432 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-12-02 07:44:02,432 INFO L124 PetriNetUnfolderBase]: 4/114 cut-off events. [2024-12-02 07:44:02,432 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-12-02 07:44:02,432 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-12-02 07:44:02,432 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:44:02,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 32 more)] === [2024-12-02 07:44:02,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:44:02,433 INFO L85 PathProgramCache]: Analyzing trace with hash 882089580, now seen corresponding path program 1 times [2024-12-02 07:44:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:44:02,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812091390] [2024-12-02 07:44:02,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:44:02,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:44:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:44:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 07:44:02,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:44:02,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812091390] [2024-12-02 07:44:02,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812091390] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:44:02,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:44:02,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:44:02,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354394553] [2024-12-02 07:44:02,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:44:02,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:44:02,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:44:02,838 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:44:02,838 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:44:02,988 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 380 out of 506 [2024-12-02 07:44:02,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 451 places, 506 transitions, 1056 flow. Second operand has 6 states, 6 states have (on average 381.5) internal successors, (2289), 6 states have internal predecessors, (2289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 07:44:02,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-12-02 07:44:02,991 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 380 of 506 [2024-12-02 07:44:02,991 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand