./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd --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 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:01:29,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:01:29,113 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:01:29,118 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:01:29,118 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:01:29,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:01:29,139 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:01:29,140 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:01:29,140 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:01:29,140 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:01:29,141 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:01:29,141 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:01:29,141 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:01:29,141 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:01:29,141 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:01:29,141 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:01:29,141 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:01:29,142 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:01:29,143 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:01:29,143 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:01:29,143 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:01:29,143 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:01:29,143 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:01:29,143 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:01:29,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:01:29,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:01:29,144 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:01:29,144 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:01:29,144 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:01:29,144 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:01:29,144 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:01:29,145 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:01:29,145 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:01:29,145 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:01:29,145 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:01:29,145 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_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd 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 -> 8d306ff8cfbc22ceebe04735dbb58cf2d83206c78fa42d12e01716373b332b54 [2024-11-13 16:01:29,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:01:29,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:01:29,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:01:29,444 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:01:29,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:01:29,446 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i Unable to find full path for "g++" [2024-11-13 16:01:31,312 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:01:31,613 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:01:31,615 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/sv-benchmarks/c/goblint-regression/04-mutex_22-deref_read.i [2024-11-13 16:01:31,628 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/data/926c39fc3/a72d811d0715417ab2de4d9bae2bd18a/FLAGccae2fc60 [2024-11-13 16:01:31,643 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/data/926c39fc3/a72d811d0715417ab2de4d9bae2bd18a [2024-11-13 16:01:31,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:01:31,646 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:01:31,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:01:31,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:01:31,650 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:01:31,651 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:01:31" (1/1) ... [2024-11-13 16:01:31,652 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2029f995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:31, skipping insertion in model container [2024-11-13 16:01:31,652 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:01:31" (1/1) ... [2024-11-13 16:01:31,680 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:01:31,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:01:31,999 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:01:32,040 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:01:32,089 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:01:32,090 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32 WrapperNode [2024-11-13 16:01:32,091 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:01:32,092 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:01:32,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:01:32,093 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:01:32,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,142 INFO L138 Inliner]: procedures = 165, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2024-11-13 16:01:32,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:01:32,143 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:01:32,143 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:01:32,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:01:32,151 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,152 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,163 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,167 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:01:32,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:01:32,168 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:01:32,168 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:01:32,169 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (1/1) ... [2024-11-13 16:01:32,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:01:32,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:01:32,207 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:01:32,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:01:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:01:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:01:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:01:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 16:01:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 16:01:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:01:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:01:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:01:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:01:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:01:32,244 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 16:01:32,399 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:01:32,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:01:32,592 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:01:32,592 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:01:32,613 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:01:32,614 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 16:01:32,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:32 BoogieIcfgContainer [2024-11-13 16:01:32,614 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:01:32,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:01:32,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:01:32,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:01:32,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:01:31" (1/3) ... [2024-11-13 16:01:32,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e98a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:01:32, skipping insertion in model container [2024-11-13 16:01:32,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:01:32" (2/3) ... [2024-11-13 16:01:32,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e98a11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:01:32, skipping insertion in model container [2024-11-13 16:01:32,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:32" (3/3) ... [2024-11-13 16:01:32,624 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_22-deref_read.i [2024-11-13 16:01:32,640 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:01:32,641 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 04-mutex_22-deref_read.i that has 2 procedures, 76 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-13 16:01:32,642 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:01:32,695 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-13 16:01:32,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 75 transitions, 154 flow [2024-11-13 16:01:32,799 INFO L124 PetriNetUnfolderBase]: 0/74 cut-off events. [2024-11-13 16:01:32,801 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:01:32,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 74 events. 0/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 49 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-13 16:01:32,805 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 75 transitions, 154 flow [2024-11-13 16:01:32,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 74 transitions, 151 flow [2024-11-13 16:01:32,818 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:01:32,832 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;@63624, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:01:32,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-13 16:01:32,845 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:01:32,845 INFO L124 PetriNetUnfolderBase]: 0/31 cut-off events. [2024-11-13 16:01:32,845 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:01:32,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:01:32,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:32,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 16:01:32,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:32,852 INFO L85 PathProgramCache]: Analyzing trace with hash 837045494, now seen corresponding path program 1 times [2024-11-13 16:01:32,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:32,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976884536] [2024-11-13 16:01:32,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:32,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:33,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:33,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:33,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976884536] [2024-11-13 16:01:33,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976884536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:33,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:33,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:33,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453950844] [2024-11-13 16:01:33,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:33,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:33,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:33,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:33,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:33,247 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 75 [2024-11-13 16:01:33,250 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 151 flow. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2024-11-13 16:01:33,250 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:01:33,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 75 [2024-11-13 16:01:33,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:01:33,362 INFO L124 PetriNetUnfolderBase]: 16/176 cut-off events. [2024-11-13 16:01:33,362 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:01:33,364 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 176 events. 16/176 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 552 event pairs, 9 based on Foata normal form. 0/161 useless extension candidates. Maximal degree in co-relation 192. Up to 39 conditions per place. [2024-11-13 16:01:33,368 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 10 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-11-13 16:01:33,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 75 transitions, 177 flow [2024-11-13 16:01:33,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:33,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:01:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 206 transitions. [2024-11-13 16:01:33,389 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9155555555555556 [2024-11-13 16:01:33,391 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 151 flow. Second operand 3 states and 206 transitions. [2024-11-13 16:01:33,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 75 transitions, 177 flow [2024-11-13 16:01:33,399 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 75 transitions, 176 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:01:33,406 INFO L231 Difference]: Finished difference. Result has 78 places, 74 transitions, 160 flow [2024-11-13 16:01:33,410 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=160, PETRI_PLACES=78, PETRI_TRANSITIONS=74} [2024-11-13 16:01:33,415 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 0 predicate places. [2024-11-13 16:01:33,416 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 74 transitions, 160 flow [2024-11-13 16:01:33,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 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) [2024-11-13 16:01:33,417 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:01:33,417 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:33,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:01:33,418 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 16:01:33,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:33,420 INFO L85 PathProgramCache]: Analyzing trace with hash -592073286, now seen corresponding path program 1 times [2024-11-13 16:01:33,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:33,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205914045] [2024-11-13 16:01:33,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:33,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:33,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:33,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:33,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:33,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205914045] [2024-11-13 16:01:33,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205914045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:33,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:33,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:33,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945048751] [2024-11-13 16:01:33,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:33,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:33,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:33,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:33,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:33,575 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 75 [2024-11-13 16:01:33,576 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 74 transitions, 160 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:01:33,576 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:01:33,576 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 75 [2024-11-13 16:01:33,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:01:33,669 INFO L124 PetriNetUnfolderBase]: 17/166 cut-off events. [2024-11-13 16:01:33,669 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:01:33,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 223 conditions, 166 events. 17/166 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 507 event pairs, 12 based on Foata normal form. 0/152 useless extension candidates. Maximal degree in co-relation 192. Up to 36 conditions per place. [2024-11-13 16:01:33,671 INFO L140 encePairwiseOnDemand]: 72/75 looper letters, 12 selfloop transitions, 2 changer transitions 0/75 dead transitions. [2024-11-13 16:01:33,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 75 transitions, 190 flow [2024-11-13 16:01:33,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:33,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:01:33,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 201 transitions. [2024-11-13 16:01:33,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8933333333333333 [2024-11-13 16:01:33,674 INFO L175 Difference]: Start difference. First operand has 78 places, 74 transitions, 160 flow. Second operand 3 states and 201 transitions. [2024-11-13 16:01:33,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 75 transitions, 190 flow [2024-11-13 16:01:33,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 75 transitions, 190 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:01:33,679 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 162 flow [2024-11-13 16:01:33,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=162, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-13 16:01:33,680 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 1 predicate places. [2024-11-13 16:01:33,681 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 162 flow [2024-11-13 16:01:33,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:01:33,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:01:33,682 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:33,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:01:33,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 16:01:33,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:33,684 INFO L85 PathProgramCache]: Analyzing trace with hash 297893272, now seen corresponding path program 1 times [2024-11-13 16:01:33,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:33,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053831765] [2024-11-13 16:01:33,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:33,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:34,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:34,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053831765] [2024-11-13 16:01:34,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053831765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:34,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:34,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:01:34,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652026032] [2024-11-13 16:01:34,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:34,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:01:34,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:34,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:01:34,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:01:34,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 75 [2024-11-13 16:01:34,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 162 flow. Second operand has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 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) [2024-11-13 16:01:34,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:01:34,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 75 [2024-11-13 16:01:34,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:01:34,775 INFO L124 PetriNetUnfolderBase]: 79/333 cut-off events. [2024-11-13 16:01:34,775 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:01:34,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 536 conditions, 333 events. 79/333 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1466 event pairs, 25 based on Foata normal form. 0/311 useless extension candidates. Maximal degree in co-relation 504. Up to 133 conditions per place. [2024-11-13 16:01:34,778 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 21 selfloop transitions, 22 changer transitions 4/102 dead transitions. [2024-11-13 16:01:34,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 102 transitions, 314 flow [2024-11-13 16:01:34,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:01:34,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:01:34,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 390 transitions. [2024-11-13 16:01:34,785 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8666666666666667 [2024-11-13 16:01:34,786 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 162 flow. Second operand 6 states and 390 transitions. [2024-11-13 16:01:34,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 102 transitions, 314 flow [2024-11-13 16:01:34,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 102 transitions, 310 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:01:34,789 INFO L231 Difference]: Finished difference. Result has 87 places, 94 transitions, 308 flow [2024-11-13 16:01:34,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=308, PETRI_PLACES=87, PETRI_TRANSITIONS=94} [2024-11-13 16:01:34,792 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 9 predicate places. [2024-11-13 16:01:34,792 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 94 transitions, 308 flow [2024-11-13 16:01:34,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 58.5) internal successors, (351), 6 states have internal predecessors, (351), 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) [2024-11-13 16:01:34,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:01:34,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:34,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:01:34,794 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 16:01:34,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1227184665, now seen corresponding path program 1 times [2024-11-13 16:01:34,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:34,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293536463] [2024-11-13 16:01:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:34,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:34,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:34,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:34,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293536463] [2024-11-13 16:01:34,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293536463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:34,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:34,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:01:34,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661503376] [2024-11-13 16:01:34,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:34,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:34,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:34,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:34,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:34,869 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 75 [2024-11-13 16:01:34,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 94 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-11-13 16:01:34,869 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:01:34,869 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 75 [2024-11-13 16:01:34,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:01:34,933 INFO L124 PetriNetUnfolderBase]: 50/301 cut-off events. [2024-11-13 16:01:34,933 INFO L125 PetriNetUnfolderBase]: For 24/24 co-relation queries the response was YES. [2024-11-13 16:01:34,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 541 conditions, 301 events. 50/301 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1227 event pairs, 8 based on Foata normal form. 0/289 useless extension candidates. Maximal degree in co-relation 506. Up to 60 conditions per place. [2024-11-13 16:01:34,940 INFO L140 encePairwiseOnDemand]: 73/75 looper letters, 9 selfloop transitions, 1 changer transitions 0/95 dead transitions. [2024-11-13 16:01:34,940 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 95 transitions, 330 flow [2024-11-13 16:01:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:01:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 209 transitions. [2024-11-13 16:01:34,945 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9288888888888889 [2024-11-13 16:01:34,945 INFO L175 Difference]: Start difference. First operand has 87 places, 94 transitions, 308 flow. Second operand 3 states and 209 transitions. [2024-11-13 16:01:34,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 95 transitions, 330 flow [2024-11-13 16:01:34,951 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 95 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:01:34,953 INFO L231 Difference]: Finished difference. Result has 88 places, 93 transitions, 308 flow [2024-11-13 16:01:34,955 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=88, PETRI_TRANSITIONS=93} [2024-11-13 16:01:34,956 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 10 predicate places. [2024-11-13 16:01:34,956 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 93 transitions, 308 flow [2024-11-13 16:01:34,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 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) [2024-11-13 16:01:34,957 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:01:34,957 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:34,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:01:34,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 16:01:34,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:34,959 INFO L85 PathProgramCache]: Analyzing trace with hash -177957972, now seen corresponding path program 1 times [2024-11-13 16:01:34,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:34,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857031272] [2024-11-13 16:01:34,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:34,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:35,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857031272] [2024-11-13 16:01:35,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857031272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:35,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:35,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:01:35,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351821169] [2024-11-13 16:01:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:35,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:01:35,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:35,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:01:35,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:01:35,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 75 [2024-11-13 16:01:35,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 93 transitions, 308 flow. Second operand has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 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) [2024-11-13 16:01:35,454 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:01:35,454 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 75 [2024-11-13 16:01:35,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:01:35,667 INFO L124 PetriNetUnfolderBase]: 138/488 cut-off events. [2024-11-13 16:01:35,667 INFO L125 PetriNetUnfolderBase]: For 146/168 co-relation queries the response was YES. [2024-11-13 16:01:35,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 488 events. 138/488 cut-off events. For 146/168 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2404 event pairs, 37 based on Foata normal form. 0/474 useless extension candidates. Maximal degree in co-relation 1094. Up to 235 conditions per place. [2024-11-13 16:01:35,671 INFO L140 encePairwiseOnDemand]: 64/75 looper letters, 39 selfloop transitions, 29 changer transitions 7/128 dead transitions. [2024-11-13 16:01:35,671 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 128 transitions, 598 flow [2024-11-13 16:01:35,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:01:35,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:01:35,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 375 transitions. [2024-11-13 16:01:35,673 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8333333333333334 [2024-11-13 16:01:35,673 INFO L175 Difference]: Start difference. First operand has 88 places, 93 transitions, 308 flow. Second operand 6 states and 375 transitions. [2024-11-13 16:01:35,673 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 128 transitions, 598 flow [2024-11-13 16:01:35,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 128 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:01:35,680 INFO L231 Difference]: Finished difference. Result has 97 places, 117 transitions, 561 flow [2024-11-13 16:01:35,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=561, PETRI_PLACES=97, PETRI_TRANSITIONS=117} [2024-11-13 16:01:35,680 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, 19 predicate places. [2024-11-13 16:01:35,681 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 117 transitions, 561 flow [2024-11-13 16:01:35,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.833333333333336) internal successors, (335), 6 states have internal predecessors, (335), 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) [2024-11-13 16:01:35,681 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:01:35,681 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:01:35,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:01:35,681 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 6 more)] === [2024-11-13 16:01:35,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:01:35,682 INFO L85 PathProgramCache]: Analyzing trace with hash -1333786254, now seen corresponding path program 1 times [2024-11-13 16:01:35,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:01:35,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506238672] [2024-11-13 16:01:35,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:01:35,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:01:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:01:35,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:01:35,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:01:35,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506238672] [2024-11-13 16:01:35,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506238672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:01:35,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:01:35,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:01:35,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489341756] [2024-11-13 16:01:35,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:01:35,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:01:35,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:01:35,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:01:35,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:01:35,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 75 [2024-11-13 16:01:35,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 561 flow. Second operand has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2024-11-13 16:01:35,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:01:35,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 75 [2024-11-13 16:01:35,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:01:35,851 INFO L124 PetriNetUnfolderBase]: 2/112 cut-off events. [2024-11-13 16:01:35,851 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-13 16:01:35,852 INFO L83 FinitePrefix]: Finished finitePrefix Result has 222 conditions, 112 events. 2/112 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 144 event pairs, 1 based on Foata normal form. 2/114 useless extension candidates. Maximal degree in co-relation 181. Up to 12 conditions per place. [2024-11-13 16:01:35,852 INFO L140 encePairwiseOnDemand]: 71/75 looper letters, 0 selfloop transitions, 0 changer transitions 70/70 dead transitions. [2024-11-13 16:01:35,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 70 transitions, 225 flow [2024-11-13 16:01:35,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:01:35,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:01:35,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 215 transitions. [2024-11-13 16:01:35,854 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9555555555555556 [2024-11-13 16:01:35,854 INFO L175 Difference]: Start difference. First operand has 97 places, 117 transitions, 561 flow. Second operand 3 states and 215 transitions. [2024-11-13 16:01:35,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 70 transitions, 225 flow [2024-11-13 16:01:35,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 70 transitions, 165 flow, removed 10 selfloop flow, removed 20 redundant places. [2024-11-13 16:01:35,856 INFO L231 Difference]: Finished difference. Result has 77 places, 0 transitions, 0 flow [2024-11-13 16:01:35,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=75, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=77, PETRI_TRANSITIONS=0} [2024-11-13 16:01:35,857 INFO L277 CegarLoopForPetriNet]: 78 programPoint places, -1 predicate places. [2024-11-13 16:01:35,861 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 0 transitions, 0 flow [2024-11-13 16:01:35,861 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.33333333333333) internal successors, (211), 3 states have internal predecessors, (211), 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) [2024-11-13 16:01:35,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (8 of 9 remaining) [2024-11-13 16:01:35,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (7 of 9 remaining) [2024-11-13 16:01:35,864 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (6 of 9 remaining) [2024-11-13 16:01:35,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 9 remaining) [2024-11-13 16:01:35,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 9 remaining) [2024-11-13 16:01:35,865 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 9 remaining) [2024-11-13 16:01:35,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 9 remaining) [2024-11-13 16:01:35,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 9 remaining) [2024-11-13 16:01:35,866 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 9 remaining) [2024-11-13 16:01:35,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:01:35,866 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 16:01:35,873 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 16:01:35,873 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:01:35,879 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:01:35 BasicIcfg [2024-11-13 16:01:35,880 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:01:35,880 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:01:35,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:01:35,881 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:01:35,881 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:01:32" (3/4) ... [2024-11-13 16:01:35,883 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:01:35,886 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-13 16:01:35,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 16:01:35,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 16:01:35,891 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 16:01:35,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:01:35,968 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 16:01:35,969 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:01:35,969 INFO L158 Benchmark]: Toolchain (without parser) took 4323.58ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 37.7MB in the end (delta: 54.4MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-11-13 16:01:35,969 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:01:35,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.05ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 72.6MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:01:35,970 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.47ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:01:35,970 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 69.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:01:35,970 INFO L158 Benchmark]: RCFGBuilder took 446.83ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 55.3MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:01:35,971 INFO L158 Benchmark]: TraceAbstraction took 3263.27ms. Allocated memory is still 117.4MB. Free memory was 54.8MB in the beginning and 41.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-13 16:01:35,973 INFO L158 Benchmark]: Witness Printer took 88.14ms. Allocated memory is still 117.4MB. Free memory was 41.9MB in the beginning and 37.7MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:01:35,975 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 75.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.05ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 72.6MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.47ms. Allocated memory is still 117.4MB. Free memory was 72.4MB in the beginning and 70.8MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 117.4MB. Free memory was 70.8MB in the beginning and 69.8MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 446.83ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 55.3MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 3263.27ms. Allocated memory is still 117.4MB. Free memory was 54.8MB in the beginning and 41.9MB in the end (delta: 13.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 88.14ms. Allocated memory is still 117.4MB. Free memory was 41.9MB in the beginning and 37.7MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 691]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 693]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 684]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 97 locations, 9 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: 3.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 138 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 327 IncrementalHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 5 mSDtfsCounter, 327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 229 NumberOfCodeBlocks, 229 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 433 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 16:01:36,004 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_265ebfd7-3776-4e08-9d2a-1689a6991661/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE