./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.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_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB --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 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:29:56,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:29:57,092 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:29:57,099 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:29:57,100 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:29:57,143 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:29:57,144 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:29:57,144 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:29:57,144 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:29:57,145 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:29:57,145 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:29:57,146 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:29:57,146 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:29:57,146 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:29:57,147 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:29:57,148 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:29:57,148 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:29:57,149 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:29:57,149 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:29:57,149 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:29:57,149 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:29:57,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:29:57,149 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:29:57,150 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:29:57,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:29:57,151 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:29:57,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:29:57,151 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:29:57,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:29:57,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:29:57,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:29:57,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:29:57,152 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:29:57,152 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_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0e635f0fe47aceede1c472bdc8d824736c973da1578eefbb4d4eeab774d2111f [2024-11-27 20:29:57,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:29:57,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:29:57,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:29:57,554 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:29:57,556 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:29:57,557 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2024-11-27 20:30:00,934 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/data/7049811b5/75b776cbfd054cbcb877ed88c9b85098/FLAGc8b90ac00 [2024-11-27 20:30:01,455 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:30:01,459 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/sv-benchmarks/c/goblint-regression/05-lval_ls_09-idxsense_rc.i [2024-11-27 20:30:01,484 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/data/7049811b5/75b776cbfd054cbcb877ed88c9b85098/FLAGc8b90ac00 [2024-11-27 20:30:01,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/data/7049811b5/75b776cbfd054cbcb877ed88c9b85098 [2024-11-27 20:30:01,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:30:01,516 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:30:01,519 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:01,519 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:30:01,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:30:01,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:01" (1/1) ... [2024-11-27 20:30:01,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f7cd794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:01, skipping insertion in model container [2024-11-27 20:30:01,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:30:01" (1/1) ... [2024-11-27 20:30:01,581 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:30:02,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:02,059 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:30:02,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:30:02,197 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:30:02,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02 WrapperNode [2024-11-27 20:30:02,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:30:02,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:02,202 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:30:02,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:30:02,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,230 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,266 INFO L138 Inliner]: procedures = 162, calls = 73, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 109 [2024-11-27 20:30:02,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:30:02,267 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:30:02,267 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:30:02,267 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:30:02,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,279 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,291 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,292 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,300 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,307 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:30:02,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:30:02,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:30:02,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:30:02,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (1/1) ... [2024-11-27 20:30:02,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:30:02,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:02,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:30:02,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-27 20:30:02,400 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:30:02,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:30:02,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:30:02,403 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:30:02,602 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:30:02,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:30:03,012 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:30:03,012 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:30:03,046 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:30:03,046 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-27 20:30:03,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:03 BoogieIcfgContainer [2024-11-27 20:30:03,047 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:30:03,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:30:03,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:30:03,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:30:03,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:30:01" (1/3) ... [2024-11-27 20:30:03,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cee8605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:03, skipping insertion in model container [2024-11-27 20:30:03,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:30:02" (2/3) ... [2024-11-27 20:30:03,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cee8605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:30:03, skipping insertion in model container [2024-11-27 20:30:03,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:03" (3/3) ... [2024-11-27 20:30:03,063 INFO L128 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_09-idxsense_rc.i [2024-11-27 20:30:03,083 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:30:03,085 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 05-lval_ls_09-idxsense_rc.i that has 2 procedures, 137 locations, 1 initial locations, 1 loop locations, and 4 error locations. [2024-11-27 20:30:03,085 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:30:03,204 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:30:03,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 138 transitions, 280 flow [2024-11-27 20:30:03,430 INFO L124 PetriNetUnfolderBase]: 2/137 cut-off events. [2024-11-27 20:30:03,433 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:30:03,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 137 events. 2/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 72 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 81. Up to 2 conditions per place. [2024-11-27 20:30:03,443 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 138 transitions, 280 flow [2024-11-27 20:30:03,453 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 139 places, 137 transitions, 277 flow [2024-11-27 20:30:03,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:30:03,485 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;@6b3f15c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:30:03,486 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-27 20:30:03,531 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:30:03,531 INFO L124 PetriNetUnfolderBase]: 2/98 cut-off events. [2024-11-27 20:30:03,533 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:30:03,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:03,534 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] [2024-11-27 20:30:03,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:03,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:03,542 INFO L85 PathProgramCache]: Analyzing trace with hash 76024053, now seen corresponding path program 1 times [2024-11-27 20:30:03,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:03,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183508625] [2024-11-27 20:30:03,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:03,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:03,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:04,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:04,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183508625] [2024-11-27 20:30:04,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183508625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:04,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:04,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:30:04,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917549422] [2024-11-27 20:30:04,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:04,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:30:04,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:04,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:30:04,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:30:04,126 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 126 out of 138 [2024-11-27 20:30:04,130 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 137 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:04,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:04,131 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 126 of 138 [2024-11-27 20:30:04,131 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:04,236 INFO L124 PetriNetUnfolderBase]: 7/221 cut-off events. [2024-11-27 20:30:04,236 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:30:04,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 221 events. 7/221 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 323 event pairs, 6 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 153. Up to 24 conditions per place. [2024-11-27 20:30:04,242 INFO L140 encePairwiseOnDemand]: 134/138 looper letters, 10 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-11-27 20:30:04,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 137 transitions, 301 flow [2024-11-27 20:30:04,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:30:04,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:30:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2024-11-27 20:30:04,268 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9492753623188406 [2024-11-27 20:30:04,271 INFO L175 Difference]: Start difference. First operand has 139 places, 137 transitions, 277 flow. Second operand 3 states and 393 transitions. [2024-11-27 20:30:04,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 137 transitions, 301 flow [2024-11-27 20:30:04,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 300 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:30:04,319 INFO L231 Difference]: Finished difference. Result has 141 places, 137 transitions, 286 flow [2024-11-27 20:30:04,323 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=141, PETRI_TRANSITIONS=137} [2024-11-27 20:30:04,330 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 2 predicate places. [2024-11-27 20:30:04,330 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 137 transitions, 286 flow [2024-11-27 20:30:04,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.0) internal successors, (384), 3 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:04,333 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:04,333 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] [2024-11-27 20:30:04,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:30:04,334 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:04,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:04,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1931580105, now seen corresponding path program 1 times [2024-11-27 20:30:04,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:04,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636501214] [2024-11-27 20:30:04,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:04,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:04,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:04,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:04,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636501214] [2024-11-27 20:30:04,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636501214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:04,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125904045] [2024-11-27 20:30:04,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:04,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:04,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:04,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:04,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:30:04,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:04,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:30:04,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:04,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:04,997 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:05,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125904045] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:05,074 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:05,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 20:30:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038878567] [2024-11-27 20:30:05,075 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:05,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 20:30:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:05,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 20:30:05,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-27 20:30:05,122 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 138 [2024-11-27 20:30:05,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 137 transitions, 286 flow. Second operand has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:05,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:05,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 138 [2024-11-27 20:30:05,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:05,359 INFO L124 PetriNetUnfolderBase]: 7/228 cut-off events. [2024-11-27 20:30:05,359 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:30:05,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275 conditions, 228 events. 7/228 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 317 event pairs, 6 based on Foata normal form. 2/217 useless extension candidates. Maximal degree in co-relation 190. Up to 24 conditions per place. [2024-11-27 20:30:05,363 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 14 selfloop transitions, 9 changer transitions 0/145 dead transitions. [2024-11-27 20:30:05,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 350 flow [2024-11-27 20:30:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-27 20:30:05,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-27 20:30:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1132 transitions. [2024-11-27 20:30:05,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9114331723027376 [2024-11-27 20:30:05,378 INFO L175 Difference]: Start difference. First operand has 141 places, 137 transitions, 286 flow. Second operand 9 states and 1132 transitions. [2024-11-27 20:30:05,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 350 flow [2024-11-27 20:30:05,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 145 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:30:05,385 INFO L231 Difference]: Finished difference. Result has 151 places, 143 transitions, 334 flow [2024-11-27 20:30:05,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=334, PETRI_PLACES=151, PETRI_TRANSITIONS=143} [2024-11-27 20:30:05,386 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 12 predicate places. [2024-11-27 20:30:05,386 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 143 transitions, 334 flow [2024-11-27 20:30:05,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 125.0) internal successors, (1250), 10 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:05,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:05,388 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:05,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 20:30:05,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:05,589 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:05,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:05,590 INFO L85 PathProgramCache]: Analyzing trace with hash 757455863, now seen corresponding path program 2 times [2024-11-27 20:30:05,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:05,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324933729] [2024-11-27 20:30:05,591 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:30:05,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:05,638 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:30:05,638 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:30:06,784 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-27 20:30:06,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:06,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324933729] [2024-11-27 20:30:06,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324933729] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:06,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:06,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:30:06,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271001286] [2024-11-27 20:30:06,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:06,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:30:06,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:06,787 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:30:06,787 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:30:07,119 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 109 out of 138 [2024-11-27 20:30:07,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 143 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:07,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:07,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 109 of 138 [2024-11-27 20:30:07,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:07,660 INFO L124 PetriNetUnfolderBase]: 261/1003 cut-off events. [2024-11-27 20:30:07,661 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-27 20:30:07,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1606 conditions, 1003 events. 261/1003 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5955 event pairs, 67 based on Foata normal form. 0/966 useless extension candidates. Maximal degree in co-relation 1492. Up to 257 conditions per place. [2024-11-27 20:30:07,679 INFO L140 encePairwiseOnDemand]: 116/138 looper letters, 88 selfloop transitions, 42 changer transitions 0/245 dead transitions. [2024-11-27 20:30:07,679 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 245 transitions, 798 flow [2024-11-27 20:30:07,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:30:07,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:30:07,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 786 transitions. [2024-11-27 20:30:07,683 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9492753623188406 [2024-11-27 20:30:07,684 INFO L175 Difference]: Start difference. First operand has 151 places, 143 transitions, 334 flow. Second operand 6 states and 786 transitions. [2024-11-27 20:30:07,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 245 transitions, 798 flow [2024-11-27 20:30:07,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 245 transitions, 792 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-27 20:30:07,698 INFO L231 Difference]: Finished difference. Result has 160 places, 189 transitions, 644 flow [2024-11-27 20:30:07,698 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=644, PETRI_PLACES=160, PETRI_TRANSITIONS=189} [2024-11-27 20:30:07,699 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 21 predicate places. [2024-11-27 20:30:07,699 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 189 transitions, 644 flow [2024-11-27 20:30:07,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:07,701 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:07,702 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:07,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:30:07,702 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:07,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash 948291452, now seen corresponding path program 1 times [2024-11-27 20:30:07,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:07,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912732563] [2024-11-27 20:30:07,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:08,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:08,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:08,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912732563] [2024-11-27 20:30:08,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912732563] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:08,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316310249] [2024-11-27 20:30:08,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:08,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:08,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:08,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:08,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:30:08,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:08,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:30:08,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:08,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:08,329 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:08,531 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:08,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316310249] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:08,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:08,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-27 20:30:08,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357774412] [2024-11-27 20:30:08,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:08,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 20:30:08,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:08,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:30:08,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:30:08,610 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 138 [2024-11-27 20:30:08,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 189 transitions, 644 flow. Second operand has 18 states, 18 states have (on average 125.0) internal successors, (2250), 18 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:08,615 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:08,615 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 138 [2024-11-27 20:30:08,615 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:09,213 INFO L124 PetriNetUnfolderBase]: 123/770 cut-off events. [2024-11-27 20:30:09,214 INFO L125 PetriNetUnfolderBase]: For 129/144 co-relation queries the response was YES. [2024-11-27 20:30:09,220 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1440 conditions, 770 events. 123/770 cut-off events. For 129/144 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 4490 event pairs, 41 based on Foata normal form. 4/757 useless extension candidates. Maximal degree in co-relation 1250. Up to 126 conditions per place. [2024-11-27 20:30:09,225 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 18 selfloop transitions, 21 changer transitions 0/207 dead transitions. [2024-11-27 20:30:09,225 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 207 transitions, 810 flow [2024-11-27 20:30:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-27 20:30:09,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-27 20:30:09,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2626 transitions. [2024-11-27 20:30:09,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9061421670117322 [2024-11-27 20:30:09,239 INFO L175 Difference]: Start difference. First operand has 160 places, 189 transitions, 644 flow. Second operand 21 states and 2626 transitions. [2024-11-27 20:30:09,239 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 207 transitions, 810 flow [2024-11-27 20:30:09,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 207 transitions, 810 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:30:09,253 INFO L231 Difference]: Finished difference. Result has 185 places, 202 transitions, 774 flow [2024-11-27 20:30:09,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=644, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=189, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=774, PETRI_PLACES=185, PETRI_TRANSITIONS=202} [2024-11-27 20:30:09,254 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 46 predicate places. [2024-11-27 20:30:09,254 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 202 transitions, 774 flow [2024-11-27 20:30:09,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 125.0) internal successors, (2250), 18 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:09,257 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:09,258 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:09,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:30:09,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:09,463 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:09,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:09,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1162291972, now seen corresponding path program 2 times [2024-11-27 20:30:09,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:09,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106676182] [2024-11-27 20:30:09,465 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:30:09,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:09,502 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:30:09,503 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:30:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-27 20:30:10,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:10,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106676182] [2024-11-27 20:30:10,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106676182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:10,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:10,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:30:10,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427961847] [2024-11-27 20:30:10,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:10,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:30:10,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:10,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:30:10,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:30:10,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 108 out of 138 [2024-11-27 20:30:10,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 202 transitions, 774 flow. Second operand has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:10,487 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:10,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 108 of 138 [2024-11-27 20:30:10,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:11,051 INFO L124 PetriNetUnfolderBase]: 417/1422 cut-off events. [2024-11-27 20:30:11,051 INFO L125 PetriNetUnfolderBase]: For 645/680 co-relation queries the response was YES. [2024-11-27 20:30:11,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3426 conditions, 1422 events. 417/1422 cut-off events. For 645/680 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 9197 event pairs, 108 based on Foata normal form. 21/1426 useless extension candidates. Maximal degree in co-relation 3228. Up to 602 conditions per place. [2024-11-27 20:30:11,064 INFO L140 encePairwiseOnDemand]: 121/138 looper letters, 99 selfloop transitions, 53 changer transitions 6/285 dead transitions. [2024-11-27 20:30:11,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 285 transitions, 1442 flow [2024-11-27 20:30:11,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:30:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:30:11,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 746 transitions. [2024-11-27 20:30:11,067 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9009661835748792 [2024-11-27 20:30:11,067 INFO L175 Difference]: Start difference. First operand has 185 places, 202 transitions, 774 flow. Second operand 6 states and 746 transitions. [2024-11-27 20:30:11,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 285 transitions, 1442 flow [2024-11-27 20:30:11,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 285 transitions, 1418 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-27 20:30:11,081 INFO L231 Difference]: Finished difference. Result has 189 places, 253 transitions, 1256 flow [2024-11-27 20:30:11,081 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=750, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1256, PETRI_PLACES=189, PETRI_TRANSITIONS=253} [2024-11-27 20:30:11,082 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 50 predicate places. [2024-11-27 20:30:11,083 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 253 transitions, 1256 flow [2024-11-27 20:30:11,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 110.33333333333333) internal successors, (662), 6 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:11,084 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:11,084 INFO L206 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:11,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:30:11,084 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:11,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:11,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1846280522, now seen corresponding path program 1 times [2024-11-27 20:30:11,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:11,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974594717] [2024-11-27 20:30:11,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:11,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:11,705 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:11,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974594717] [2024-11-27 20:30:11,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974594717] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:30:11,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435946618] [2024-11-27 20:30:11,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:11,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:11,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:30:11,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:30:11,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:30:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:30:11,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 20:30:11,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:30:12,019 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:12,020 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:30:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:30:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435946618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:30:12,361 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:30:12,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2024-11-27 20:30:12,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466728681] [2024-11-27 20:30:12,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:30:12,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-27 20:30:12,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:12,363 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-27 20:30:12,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-27 20:30:12,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 138 [2024-11-27 20:30:12,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 253 transitions, 1256 flow. Second operand has 23 states, 23 states have (on average 125.08695652173913) internal successors, (2877), 23 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:12,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:12,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 138 [2024-11-27 20:30:12,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:13,127 INFO L124 PetriNetUnfolderBase]: 227/1128 cut-off events. [2024-11-27 20:30:13,127 INFO L125 PetriNetUnfolderBase]: For 978/1007 co-relation queries the response was YES. [2024-11-27 20:30:13,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1128 events. 227/1128 cut-off events. For 978/1007 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7344 event pairs, 39 based on Foata normal form. 7/1121 useless extension candidates. Maximal degree in co-relation 2571. Up to 212 conditions per place. [2024-11-27 20:30:13,139 INFO L140 encePairwiseOnDemand]: 132/138 looper letters, 21 selfloop transitions, 30 changer transitions 0/270 dead transitions. [2024-11-27 20:30:13,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 218 places, 270 transitions, 1480 flow [2024-11-27 20:30:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-27 20:30:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2024-11-27 20:30:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 3744 transitions. [2024-11-27 20:30:13,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9043478260869565 [2024-11-27 20:30:13,151 INFO L175 Difference]: Start difference. First operand has 189 places, 253 transitions, 1256 flow. Second operand 30 states and 3744 transitions. [2024-11-27 20:30:13,151 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 218 places, 270 transitions, 1480 flow [2024-11-27 20:30:13,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 270 transitions, 1472 flow, removed 4 selfloop flow, removed 0 redundant places. [2024-11-27 20:30:13,171 INFO L231 Difference]: Finished difference. Result has 222 places, 263 transitions, 1400 flow [2024-11-27 20:30:13,171 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=1248, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=1400, PETRI_PLACES=222, PETRI_TRANSITIONS=263} [2024-11-27 20:30:13,172 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 83 predicate places. [2024-11-27 20:30:13,173 INFO L471 AbstractCegarLoop]: Abstraction has has 222 places, 263 transitions, 1400 flow [2024-11-27 20:30:13,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 125.08695652173913) internal successors, (2877), 23 states have internal predecessors, (2877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:13,176 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:13,176 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:13,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:30:13,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:30:13,377 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:13,378 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:13,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1197287752, now seen corresponding path program 2 times [2024-11-27 20:30:13,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:13,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15552503] [2024-11-27 20:30:13,379 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 20:30:13,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:13,416 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 20:30:13,416 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 20:30:13,950 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-11-27 20:30:13,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:30:13,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15552503] [2024-11-27 20:30:13,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15552503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:30:13,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:30:13,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:30:13,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058877081] [2024-11-27 20:30:13,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:30:13,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 20:30:13,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:30:13,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 20:30:13,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:30:14,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 138 [2024-11-27 20:30:14,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 222 places, 263 transitions, 1400 flow. Second operand has 6 states, 6 states have (on average 108.5) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:14,175 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:30:14,175 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 138 [2024-11-27 20:30:14,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:30:14,893 INFO L124 PetriNetUnfolderBase]: 571/1817 cut-off events. [2024-11-27 20:30:14,893 INFO L125 PetriNetUnfolderBase]: For 2403/2451 co-relation queries the response was YES. [2024-11-27 20:30:14,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5537 conditions, 1817 events. 571/1817 cut-off events. For 2403/2451 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 12253 event pairs, 127 based on Foata normal form. 25/1817 useless extension candidates. Maximal degree in co-relation 5256. Up to 841 conditions per place. [2024-11-27 20:30:14,907 INFO L140 encePairwiseOnDemand]: 121/138 looper letters, 120 selfloop transitions, 58 changer transitions 39/355 dead transitions. [2024-11-27 20:30:14,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 355 transitions, 2358 flow [2024-11-27 20:30:14,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:30:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-27 20:30:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 736 transitions. [2024-11-27 20:30:14,910 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2024-11-27 20:30:14,911 INFO L175 Difference]: Start difference. First operand has 222 places, 263 transitions, 1400 flow. Second operand 6 states and 736 transitions. [2024-11-27 20:30:14,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 355 transitions, 2358 flow [2024-11-27 20:30:14,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 355 transitions, 2312 flow, removed 5 selfloop flow, removed 18 redundant places. [2024-11-27 20:30:14,937 INFO L231 Difference]: Finished difference. Result has 213 places, 290 transitions, 1762 flow [2024-11-27 20:30:14,938 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=138, PETRI_DIFFERENCE_MINUEND_FLOW=1354, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1762, PETRI_PLACES=213, PETRI_TRANSITIONS=290} [2024-11-27 20:30:14,940 INFO L279 CegarLoopForPetriNet]: 139 programPoint places, 74 predicate places. [2024-11-27 20:30:14,940 INFO L471 AbstractCegarLoop]: Abstraction has has 213 places, 290 transitions, 1762 flow [2024-11-27 20:30:14,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 108.5) internal successors, (651), 6 states have internal predecessors, (651), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:30:14,941 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:30:14,942 INFO L206 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:30:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:30:14,944 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2024-11-27 20:30:14,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:30:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash -345133706, now seen corresponding path program 1 times [2024-11-27 20:30:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:30:14,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142318583] [2024-11-27 20:30:14,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:30:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:30:15,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:15,028 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:30:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:30:15,125 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:30:15,125 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:30:15,127 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 7 remaining) [2024-11-27 20:30:15,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 7 remaining) [2024-11-27 20:30:15,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2024-11-27 20:30:15,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 7 remaining) [2024-11-27 20:30:15,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 7 remaining) [2024-11-27 20:30:15,129 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 7 remaining) [2024-11-27 20:30:15,130 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 7 remaining) [2024-11-27 20:30:15,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:30:15,130 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1] [2024-11-27 20:30:15,220 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:30:15,221 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:30:15,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:30:15 BasicIcfg [2024-11-27 20:30:15,232 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:30:15,233 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:30:15,233 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:30:15,233 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:30:15,236 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:30:03" (3/4) ... [2024-11-27 20:30:15,237 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-27 20:30:15,344 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 12. [2024-11-27 20:30:15,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:30:15,421 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:30:15,421 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:30:15,422 INFO L158 Benchmark]: Toolchain (without parser) took 13906.39ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 83.0MB in the beginning and 175.0MB in the end (delta: -92.0MB). Peak memory consumption was 74.3MB. Max. memory is 16.1GB. [2024-11-27 20:30:15,422 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:15,422 INFO L158 Benchmark]: CACSL2BoogieTranslator took 681.43ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 61.9MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:30:15,423 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.55ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 59.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:15,425 INFO L158 Benchmark]: Boogie Preprocessor took 45.99ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 57.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:30:15,426 INFO L158 Benchmark]: RCFGBuilder took 735.77ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 39.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:30:15,426 INFO L158 Benchmark]: TraceAbstraction took 12179.60ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 38.7MB in the beginning and 186.4MB in the end (delta: -147.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2024-11-27 20:30:15,427 INFO L158 Benchmark]: Witness Printer took 188.49ms. Allocated memory is still 285.2MB. Free memory was 186.4MB in the beginning and 175.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:30:15,430 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 681.43ms. Allocated memory is still 117.4MB. Free memory was 83.0MB in the beginning and 61.9MB in the end (delta: 21.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.55ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 59.5MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.99ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 57.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 735.77ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 39.0MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12179.60ms. Allocated memory was 117.4MB in the beginning and 285.2MB in the end (delta: 167.8MB). Free memory was 38.7MB in the beginning and 186.4MB in the end (delta: -147.7MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Witness Printer took 188.49ms. Allocated memory is still 285.2MB. Free memory was 186.4MB in the beginning and 175.0MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - DataRaceFoundResult [Line: 693]: Data race detected Data race detected The following path leads to a data race: [L679] 0 int data[10]; VAL [data={1:0}] [L680] 0 pthread_mutex_t m[10]; VAL [data={1:0}, m={2:0}] [L688] 0 int i = 0; VAL [data={1:0}, i=0, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=0, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=1, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=1, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=2, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=2, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=3, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=3, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=4, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=4, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=5, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=5, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=6, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=6, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=7, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=7, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=8, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=8, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=9, m={2:0}] [L688] COND TRUE 0 i < 10 VAL [data={1:0}, i=9, m={2:0}] [L688] 0 i++ VAL [data={1:0}, i=10, m={2:0}] [L688] COND FALSE 0 !(i < 10) VAL [data={1:0}, i=10, m={2:0}] [L690] 0 pthread_t id; VAL [data={1:0}, m={2:0}] [L691] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [\old(arg)={0:0}, data={1:0}, id=-1, m={2:0}] [L683] EXPR 1 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L683] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] EXPR 0 data[4] VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L693] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] [L683] 1 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, m={2:0}] [L693] 0 data[4]++ VAL [\old(arg)={0:0}, arg={0:0}, data={1:0}, id=-1, m={2:0}] Now there is a data race (on the heap) between C: data[4]++ [683] and C: data[4]++ [693] - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 683]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 165 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: 11.9s, OverallIterations: 8, TraceHistogramMax: 10, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 462 SdHoareTripleChecker+Valid, 2.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 85 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1172 IncrementalHoareTripleChecker+Invalid, 1295 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 18 mSDtfsCounter, 1172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 734 GetRequests, 631 SyntacticMatches, 11 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 684 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1762occurred in iteration=7, InterpolantAutomatonStates: 81, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 1260 NumberOfCodeBlocks, 1160 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1425 ConstructedInterpolants, 0 QuantifiedInterpolants, 2042 SizeOfPredicates, 22 NumberOfNonLiveVariables, 752 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 365/758 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-27 20:30:15,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa380628-c580-4bce-98bf-70d54686fb66/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(DATA-RACE)