./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c --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_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/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_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/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_20a03972-652c-4b39-82a5-aacb16ba1a2d/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 9c046e6043edd4a9981865f273deb13bc96b2518d014dd6435bf0abb656de540 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:08:17,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:08:17,162 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:08:17,176 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:08:17,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:08:17,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:08:17,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:08:17,230 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:08:17,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:08:17,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:08:17,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:08:17,234 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:08:17,234 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:08:17,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:08:17,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:08:17,236 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:08:17,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:08:17,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:08:17,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:08:17,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:08:17,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:08:17,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:08:17,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:08:17,239 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:08:17,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:08:17,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:08:17,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:08:17,240 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:08:17,240 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:08:17,240 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:08:17,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:08:17,241 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_20a03972-652c-4b39-82a5-aacb16ba1a2d/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 -> 9c046e6043edd4a9981865f273deb13bc96b2518d014dd6435bf0abb656de540 [2024-11-27 20:08:17,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:08:17,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:08:17,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:08:17,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:08:17,659 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:08:17,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-11-27 20:08:20,844 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/data/ee994b464/32b6e3ede86b447b84d7b158d8832a49/FLAG5c01561b9 [2024-11-27 20:08:21,168 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:08:21,169 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/sv-benchmarks/c/weaver/parallel-ticket-2.wvr.c [2024-11-27 20:08:21,184 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/data/ee994b464/32b6e3ede86b447b84d7b158d8832a49/FLAG5c01561b9 [2024-11-27 20:08:21,198 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/data/ee994b464/32b6e3ede86b447b84d7b158d8832a49 [2024-11-27 20:08:21,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:08:21,201 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:08:21,202 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:08:21,202 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:08:21,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:08:21,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,210 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4397f147 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21, skipping insertion in model container [2024-11-27 20:08:21,210 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,231 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:08:21,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:08:21,456 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:08:21,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:08:21,498 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:08:21,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21 WrapperNode [2024-11-27 20:08:21,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:08:21,501 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:08:21,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:08:21,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:08:21,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,546 INFO L138 Inliner]: procedures = 18, calls = 13, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 130 [2024-11-27 20:08:21,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:08:21,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:08:21,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:08:21,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:08:21,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,561 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,570 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,581 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:08:21,586 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:08:21,586 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:08:21,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:08:21,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (1/1) ... [2024-11-27 20:08:21,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:08:21,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:08:21,635 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:08:21,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:08:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:08:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-27 20:08:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-27 20:08:21,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-27 20:08:21,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-27 20:08:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:08:21,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:08:21,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:08:21,674 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 20:08:21,792 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:08:21,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:08:22,151 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:08:22,152 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:08:22,185 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:08:22,186 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:08:22,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:08:22 BoogieIcfgContainer [2024-11-27 20:08:22,187 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:08:22,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:08:22,190 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:08:22,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:08:22,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:08:21" (1/3) ... [2024-11-27 20:08:22,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522ee316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:08:22, skipping insertion in model container [2024-11-27 20:08:22,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:08:21" (2/3) ... [2024-11-27 20:08:22,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522ee316 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:08:22, skipping insertion in model container [2024-11-27 20:08:22,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:08:22" (3/3) ... [2024-11-27 20:08:22,197 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2024-11-27 20:08:22,212 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:08:22,213 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-ticket-2.wvr.c that has 3 procedures, 139 locations, 1 initial locations, 0 loop locations, and 6 error locations. [2024-11-27 20:08:22,214 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:08:22,310 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-27 20:08:22,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 145 places, 143 transitions, 300 flow [2024-11-27 20:08:22,414 INFO L124 PetriNetUnfolderBase]: 5/141 cut-off events. [2024-11-27 20:08:22,416 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:08:22,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 141 events. 5/141 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 86 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 95. Up to 2 conditions per place. [2024-11-27 20:08:22,422 INFO L82 GeneralOperation]: Start removeDead. Operand has 145 places, 143 transitions, 300 flow [2024-11-27 20:08:22,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 124 transitions, 257 flow [2024-11-27 20:08:22,434 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:08:22,445 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;@7fdd8c34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:08:22,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-27 20:08:22,453 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:08:22,454 INFO L124 PetriNetUnfolderBase]: 0/21 cut-off events. [2024-11-27 20:08:22,454 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:08:22,454 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:08:22,455 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] [2024-11-27 20:08:22,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-27 20:08:22,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:22,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1483852142, now seen corresponding path program 1 times [2024-11-27 20:08:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:22,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541184120] [2024-11-27 20:08:22,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:22,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:22,642 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 20:08:22,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:22,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541184120] [2024-11-27 20:08:22,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541184120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:22,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:22,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:22,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769775988] [2024-11-27 20:08:22,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:22,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:22,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:22,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:22,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:22,742 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 143 [2024-11-27 20:08:22,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 124 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 20:08:22,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:22,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 143 [2024-11-27 20:08:22,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:08:22,924 INFO L124 PetriNetUnfolderBase]: 15/208 cut-off events. [2024-11-27 20:08:22,924 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-27 20:08:22,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 269 conditions, 208 events. 15/208 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 506 event pairs, 14 based on Foata normal form. 8/193 useless extension candidates. Maximal degree in co-relation 184. Up to 41 conditions per place. [2024-11-27 20:08:22,929 INFO L140 encePairwiseOnDemand]: 137/143 looper letters, 12 selfloop transitions, 2 changer transitions 1/120 dead transitions. [2024-11-27 20:08:22,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 120 transitions, 277 flow [2024-11-27 20:08:22,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:22,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:08:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 381 transitions. [2024-11-27 20:08:22,954 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8881118881118881 [2024-11-27 20:08:22,957 INFO L175 Difference]: Start difference. First operand has 127 places, 124 transitions, 257 flow. Second operand 3 states and 381 transitions. [2024-11-27 20:08:22,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 120 transitions, 277 flow [2024-11-27 20:08:22,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 120 transitions, 272 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 20:08:22,975 INFO L231 Difference]: Finished difference. Result has 125 places, 119 transitions, 246 flow [2024-11-27 20:08:22,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=125, PETRI_TRANSITIONS=119} [2024-11-27 20:08:22,984 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -2 predicate places. [2024-11-27 20:08:22,984 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 119 transitions, 246 flow [2024-11-27 20:08:22,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 20:08:22,987 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:08:22,987 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] [2024-11-27 20:08:22,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:08:22,988 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-27 20:08:22,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:22,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1644497401, now seen corresponding path program 1 times [2024-11-27 20:08:22,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:22,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050504694] [2024-11-27 20:08:22,990 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:22,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:23,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:23,097 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 20:08:23,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:23,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050504694] [2024-11-27 20:08:23,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050504694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:23,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:23,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:23,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634567449] [2024-11-27 20:08:23,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:23,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:23,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:23,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:23,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:23,158 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 143 [2024-11-27 20:08:23,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 119 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 20:08:23,160 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:23,160 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 143 [2024-11-27 20:08:23,160 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:08:23,313 INFO L124 PetriNetUnfolderBase]: 15/256 cut-off events. [2024-11-27 20:08:23,314 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-27 20:08:23,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 310 conditions, 256 events. 15/256 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 769 event pairs, 14 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 280. Up to 41 conditions per place. [2024-11-27 20:08:23,316 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 12 selfloop transitions, 2 changer transitions 0/118 dead transitions. [2024-11-27 20:08:23,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 118 transitions, 272 flow [2024-11-27 20:08:23,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:23,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:08:23,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 378 transitions. [2024-11-27 20:08:23,320 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8811188811188811 [2024-11-27 20:08:23,320 INFO L175 Difference]: Start difference. First operand has 125 places, 119 transitions, 246 flow. Second operand 3 states and 378 transitions. [2024-11-27 20:08:23,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 118 transitions, 272 flow [2024-11-27 20:08:23,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 118 transitions, 268 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:08:23,324 INFO L231 Difference]: Finished difference. Result has 123 places, 118 transitions, 244 flow [2024-11-27 20:08:23,325 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=123, PETRI_TRANSITIONS=118} [2024-11-27 20:08:23,326 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -4 predicate places. [2024-11-27 20:08:23,326 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 118 transitions, 244 flow [2024-11-27 20:08:23,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.33333333333333) internal successors, (367), 3 states have internal predecessors, (367), 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 20:08:23,326 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:08:23,327 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] [2024-11-27 20:08:23,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:08:23,327 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-27 20:08:23,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:23,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1207941065, now seen corresponding path program 1 times [2024-11-27 20:08:23,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:23,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182370019] [2024-11-27 20:08:23,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:23,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:23,501 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 20:08:23,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:23,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182370019] [2024-11-27 20:08:23,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182370019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:23,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:23,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:23,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132922670] [2024-11-27 20:08:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:23,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:23,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:23,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:23,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:23,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 143 [2024-11-27 20:08:23,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 118 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 20:08:23,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:23,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 143 [2024-11-27 20:08:23,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:08:23,632 INFO L124 PetriNetUnfolderBase]: 24/211 cut-off events. [2024-11-27 20:08:23,633 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-27 20:08:23,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 292 conditions, 211 events. 24/211 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 585 event pairs, 17 based on Foata normal form. 0/192 useless extension candidates. Maximal degree in co-relation 254. Up to 46 conditions per place. [2024-11-27 20:08:23,637 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 14 selfloop transitions, 2 changer transitions 0/120 dead transitions. [2024-11-27 20:08:23,637 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 120 transitions, 282 flow [2024-11-27 20:08:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:23,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:08:23,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 386 transitions. [2024-11-27 20:08:23,641 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8997668997668997 [2024-11-27 20:08:23,641 INFO L175 Difference]: Start difference. First operand has 123 places, 118 transitions, 244 flow. Second operand 3 states and 386 transitions. [2024-11-27 20:08:23,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 120 transitions, 282 flow [2024-11-27 20:08:23,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 120 transitions, 278 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:08:23,647 INFO L231 Difference]: Finished difference. Result has 122 places, 117 transitions, 242 flow [2024-11-27 20:08:23,647 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=242, PETRI_PLACES=122, PETRI_TRANSITIONS=117} [2024-11-27 20:08:23,648 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -5 predicate places. [2024-11-27 20:08:23,650 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 117 transitions, 242 flow [2024-11-27 20:08:23,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 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 20:08:23,650 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:08:23,650 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] [2024-11-27 20:08:23,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:08:23,651 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-27 20:08:23,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:23,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1303920582, now seen corresponding path program 1 times [2024-11-27 20:08:23,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:23,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822287607] [2024-11-27 20:08:23,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:23,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:23,799 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 20:08:23,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:23,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822287607] [2024-11-27 20:08:23,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822287607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:23,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:23,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:23,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415693121] [2024-11-27 20:08:23,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:23,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:23,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:23,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:23,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:23,837 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 143 [2024-11-27 20:08:23,838 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 117 transitions, 242 flow. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 20:08:23,838 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:23,838 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 143 [2024-11-27 20:08:23,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:08:23,925 INFO L124 PetriNetUnfolderBase]: 18/201 cut-off events. [2024-11-27 20:08:23,926 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-27 20:08:23,930 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 201 events. 18/201 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 504 event pairs, 6 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 148. Up to 26 conditions per place. [2024-11-27 20:08:23,931 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 11 selfloop transitions, 1 changer transitions 16/119 dead transitions. [2024-11-27 20:08:23,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 119 transitions, 276 flow [2024-11-27 20:08:23,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:23,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:08:23,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2024-11-27 20:08:23,935 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9090909090909091 [2024-11-27 20:08:23,935 INFO L175 Difference]: Start difference. First operand has 122 places, 117 transitions, 242 flow. Second operand 3 states and 390 transitions. [2024-11-27 20:08:23,935 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 119 transitions, 276 flow [2024-11-27 20:08:23,937 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 119 transitions, 272 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:08:23,943 INFO L231 Difference]: Finished difference. Result has 121 places, 101 transitions, 208 flow [2024-11-27 20:08:23,943 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=208, PETRI_PLACES=121, PETRI_TRANSITIONS=101} [2024-11-27 20:08:23,948 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -6 predicate places. [2024-11-27 20:08:23,949 INFO L471 AbstractCegarLoop]: Abstraction has has 121 places, 101 transitions, 208 flow [2024-11-27 20:08:23,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 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 20:08:23,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:08:23,949 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] [2024-11-27 20:08:23,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:08:23,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-27 20:08:23,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:23,951 INFO L85 PathProgramCache]: Analyzing trace with hash -542655182, now seen corresponding path program 1 times [2024-11-27 20:08:23,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:23,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838992538] [2024-11-27 20:08:23,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:23,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:24,132 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 20:08:24,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:24,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838992538] [2024-11-27 20:08:24,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838992538] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:24,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:24,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:24,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926339335] [2024-11-27 20:08:24,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:24,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:24,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:24,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:24,137 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:24,166 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 143 [2024-11-27 20:08:24,167 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 101 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 20:08:24,167 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:24,167 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 143 [2024-11-27 20:08:24,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:08:24,243 INFO L124 PetriNetUnfolderBase]: 20/206 cut-off events. [2024-11-27 20:08:24,243 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-27 20:08:24,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 272 conditions, 206 events. 20/206 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 495 event pairs, 14 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 166. Up to 39 conditions per place. [2024-11-27 20:08:24,247 INFO L140 encePairwiseOnDemand]: 140/143 looper letters, 13 selfloop transitions, 2 changer transitions 0/103 dead transitions. [2024-11-27 20:08:24,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 103 transitions, 243 flow [2024-11-27 20:08:24,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:24,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:08:24,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 385 transitions. [2024-11-27 20:08:24,251 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8974358974358975 [2024-11-27 20:08:24,251 INFO L175 Difference]: Start difference. First operand has 121 places, 101 transitions, 208 flow. Second operand 3 states and 385 transitions. [2024-11-27 20:08:24,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 103 transitions, 243 flow [2024-11-27 20:08:24,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 103 transitions, 242 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:08:24,256 INFO L231 Difference]: Finished difference. Result has 107 places, 100 transitions, 209 flow [2024-11-27 20:08:24,257 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=107, PETRI_TRANSITIONS=100} [2024-11-27 20:08:24,257 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -20 predicate places. [2024-11-27 20:08:24,261 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 100 transitions, 209 flow [2024-11-27 20:08:24,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.33333333333333) internal successors, (376), 3 states have internal predecessors, (376), 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 20:08:24,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:08:24,262 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] [2024-11-27 20:08:24,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:08:24,262 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE (and 8 more)] === [2024-11-27 20:08:24,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:08:24,263 INFO L85 PathProgramCache]: Analyzing trace with hash 519206453, now seen corresponding path program 1 times [2024-11-27 20:08:24,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:08:24,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806015141] [2024-11-27 20:08:24,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:08:24,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:08:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:08:24,394 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 20:08:24,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:08:24,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806015141] [2024-11-27 20:08:24,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806015141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:08:24,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:08:24,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:08:24,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227333686] [2024-11-27 20:08:24,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:08:24,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:08:24,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:08:24,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:08:24,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:08:24,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 125 out of 143 [2024-11-27 20:08:24,422 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 100 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 20:08:24,422 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:08:24,422 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 125 of 143 [2024-11-27 20:08:24,422 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:08:24,473 INFO L124 PetriNetUnfolderBase]: 11/181 cut-off events. [2024-11-27 20:08:24,473 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-27 20:08:24,474 INFO L83 FinitePrefix]: Finished finitePrefix Result has 231 conditions, 181 events. 11/181 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 374 event pairs, 8 based on Foata normal form. 4/178 useless extension candidates. Maximal degree in co-relation 171. Up to 25 conditions per place. [2024-11-27 20:08:24,474 INFO L140 encePairwiseOnDemand]: 141/143 looper letters, 0 selfloop transitions, 0 changer transitions 102/102 dead transitions. [2024-11-27 20:08:24,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 102 transitions, 238 flow [2024-11-27 20:08:24,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:08:24,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:08:24,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2024-11-27 20:08:24,477 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9044289044289044 [2024-11-27 20:08:24,477 INFO L175 Difference]: Start difference. First operand has 107 places, 100 transitions, 209 flow. Second operand 3 states and 388 transitions. [2024-11-27 20:08:24,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 102 transitions, 238 flow [2024-11-27 20:08:24,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 102 transitions, 234 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:08:24,480 INFO L231 Difference]: Finished difference. Result has 106 places, 0 transitions, 0 flow [2024-11-27 20:08:24,480 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=106, PETRI_TRANSITIONS=0} [2024-11-27 20:08:24,481 INFO L279 CegarLoopForPetriNet]: 127 programPoint places, -21 predicate places. [2024-11-27 20:08:24,481 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 0 transitions, 0 flow [2024-11-27 20:08:24,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 20:08:24,487 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2024-11-27 20:08:24,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2024-11-27 20:08:24,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2024-11-27 20:08:24,491 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2024-11-27 20:08:24,492 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (1 of 12 remaining) [2024-11-27 20:08:24,493 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2024-11-27 20:08:24,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:08:24,493 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 20:08:24,502 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-27 20:08:24,502 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:08:24,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:08:24 BasicIcfg [2024-11-27 20:08:24,512 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:08:24,513 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:08:24,513 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:08:24,513 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:08:24,517 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:08:22" (3/4) ... [2024-11-27 20:08:24,519 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:08:24,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-27 20:08:24,525 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-27 20:08:24,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-27 20:08:24,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 20:08:24,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:08:24,532 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:08:24,670 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:08:24,670 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:08:24,671 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:08:24,671 INFO L158 Benchmark]: Toolchain (without parser) took 3470.77ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 132.5MB in the end (delta: -3.6MB). Peak memory consumption was 89.3MB. Max. memory is 16.1GB. [2024-11-27 20:08:24,672 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:08:24,672 INFO L158 Benchmark]: CACSL2BoogieTranslator took 298.18ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 117.7MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:08:24,672 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.54ms. Allocated memory is still 167.8MB. Free memory was 117.7MB in the beginning and 116.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:08:24,673 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 115.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:08:24,673 INFO L158 Benchmark]: RCFGBuilder took 600.70ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 99.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:08:24,673 INFO L158 Benchmark]: TraceAbstraction took 2322.40ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 44.2MB in the end (delta: 54.8MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. [2024-11-27 20:08:24,674 INFO L158 Benchmark]: Witness Printer took 158.09ms. Allocated memory is still 167.8MB. Free memory was 44.2MB in the beginning and 132.5MB in the end (delta: -88.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:08:24,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 298.18ms. Allocated memory is still 167.8MB. Free memory was 128.9MB in the beginning and 117.7MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.54ms. Allocated memory is still 167.8MB. Free memory was 117.7MB in the beginning and 116.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 115.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 600.70ms. Allocated memory is still 167.8MB. Free memory was 115.0MB in the beginning and 99.4MB in the end (delta: 15.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2322.40ms. Allocated memory is still 167.8MB. Free memory was 99.1MB in the beginning and 44.2MB in the end (delta: 54.8MB). Peak memory consumption was 55.8MB. Max. memory is 16.1GB. * Witness Printer took 158.09ms. Allocated memory is still 167.8MB. Free memory was 44.2MB in the beginning and 132.5MB in the end (delta: -88.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 43]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 52]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 66]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 193 locations, 12 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: 2.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 118 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 191 IncrementalHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 17 mSDtfsCounter, 191 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=257occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 328 NumberOfCodeBlocks, 328 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 322 ConstructedInterpolants, 0 QuantifiedInterpolants, 334 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 20:08:24,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20a03972-652c-4b39-82a5-aacb16ba1a2d/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 Result: TRUE