./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:03:29,037 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:03:29,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 23:03:29,205 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:03:29,206 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:03:29,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:03:29,240 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:03:29,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:03:29,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:03:29,248 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:03:29,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:03:29,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:03:29,251 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:03:29,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:03:29,257 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 23:03:29,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:03:29,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 23:03:29,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:03:29,259 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 23:03:29,264 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 23:03:29,264 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 23:03:29,265 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:03:29,265 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 23:03:29,266 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 23:03:29,266 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 23:03:29,267 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:03:29,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:03:29,268 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:03:29,268 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:03:29,268 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:03:29,269 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:03:29,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:03:29,270 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:03:29,270 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:03:29,270 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:03:29,270 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:03:29,271 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:03:29,271 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:03:29,271 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 034172cc4904075fab6f792587170b7236be9fb41f3a62fa7fbe9a216ec4ca2c [2023-11-06 23:03:29,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:03:29,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:03:29,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:03:29,667 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:03:29,668 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:03:29,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2023-11-06 23:03:32,902 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:03:33,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:03:33,292 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/sv-benchmarks/c/goblint-regression/09-regions_12-arraycollapse_rc.i [2023-11-06 23:03:33,314 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/data/b73fd6079/81269a7943e346bab18aed8f8cb1355a/FLAG5f4c7eea9 [2023-11-06 23:03:33,332 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/data/b73fd6079/81269a7943e346bab18aed8f8cb1355a [2023-11-06 23:03:33,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:03:33,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:03:33,347 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:03:33,348 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:03:33,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:03:33,354 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:03:33" (1/1) ... [2023-11-06 23:03:33,355 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cdc2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:33, skipping insertion in model container [2023-11-06 23:03:33,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:03:33" (1/1) ... [2023-11-06 23:03:33,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:03:34,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:03:34,241 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:03:34,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:03:34,433 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:03:34,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34 WrapperNode [2023-11-06 23:03:34,434 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:03:34,436 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:03:34,436 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:03:34,436 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:03:34,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,480 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,542 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 157 [2023-11-06 23:03:34,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:03:34,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:03:34,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:03:34,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:03:34,555 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,573 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,584 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,607 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,611 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,623 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,625 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:03:34,630 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:03:34,631 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:03:34,631 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:03:34,632 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (1/1) ... [2023-11-06 23:03:34,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:03:34,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:03:34,671 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:03:34,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b264d17e-201a-4acb-b492-42ab3ede256c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:03:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:03:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:03:34,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:03:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:03:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:03:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 23:03:34,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:03:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:03:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:03:34,722 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 23:03:34,722 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 23:03:34,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:03:34,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:03:34,725 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 23:03:34,892 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:03:34,894 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:03:35,573 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:03:35,591 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:03:35,592 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:03:35,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:03:35 BoogieIcfgContainer [2023-11-06 23:03:35,595 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:03:35,598 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:03:35,598 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:03:35,601 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:03:35,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:03:33" (1/3) ... [2023-11-06 23:03:35,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8aa893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:03:35, skipping insertion in model container [2023-11-06 23:03:35,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:03:34" (2/3) ... [2023-11-06 23:03:35,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e8aa893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:03:35, skipping insertion in model container [2023-11-06 23:03:35,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:03:35" (3/3) ... [2023-11-06 23:03:35,607 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_12-arraycollapse_rc.i [2023-11-06 23:03:35,629 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:03:35,630 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 59 error locations. [2023-11-06 23:03:35,630 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 23:03:35,787 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 23:03:35,850 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 258 places, 259 transitions, 522 flow [2023-11-06 23:03:35,962 INFO L124 PetriNetUnfolderBase]: 5/258 cut-off events. [2023-11-06 23:03:35,963 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:35,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 258 events. 5/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 401 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2023-11-06 23:03:35,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 258 places, 259 transitions, 522 flow [2023-11-06 23:03:35,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 257 places, 258 transitions, 519 flow [2023-11-06 23:03:35,981 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 23:03:35,992 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 257 places, 258 transitions, 519 flow [2023-11-06 23:03:35,995 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 257 places, 258 transitions, 519 flow [2023-11-06 23:03:35,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 257 places, 258 transitions, 519 flow [2023-11-06 23:03:36,050 INFO L124 PetriNetUnfolderBase]: 5/258 cut-off events. [2023-11-06 23:03:36,050 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 23:03:36,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 262 conditions, 258 events. 5/258 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 400 event pairs, 0 based on Foata normal form. 0/194 useless extension candidates. Maximal degree in co-relation 172. Up to 2 conditions per place. [2023-11-06 23:03:36,059 INFO L119 LiptonReduction]: Number of co-enabled transitions 3192 [2023-11-06 23:04:56,634 WARN L293 SmtUtils]: Spent 10.58s on a formula simplification. DAG size of input: 193 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:05:07,958 WARN L293 SmtUtils]: Spent 8.64s on a formula simplification. DAG size of input: 193 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:05:19,666 WARN L293 SmtUtils]: Spent 9.11s on a formula simplification. DAG size of input: 183 DAG size of output: 177 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:05:29,975 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 183 DAG size of output: 177 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:05:46,456 WARN L293 SmtUtils]: Spent 13.52s on a formula simplification. DAG size of input: 202 DAG size of output: 196 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:05:53,186 WARN L293 SmtUtils]: Spent 6.73s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:06:04,760 WARN L293 SmtUtils]: Spent 11.57s on a formula simplification. DAG size of input: 202 DAG size of output: 196 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:06:12,571 WARN L293 SmtUtils]: Spent 7.81s on a formula simplification that was a NOOP. DAG size: 188 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:06:21,382 WARN L293 SmtUtils]: Spent 8.81s on a formula simplification. DAG size of input: 186 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:06:31,671 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification. DAG size of input: 186 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:14,577 WARN L293 SmtUtils]: Spent 18.82s on a formula simplification. DAG size of input: 205 DAG size of output: 202 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:23,530 WARN L293 SmtUtils]: Spent 8.95s on a formula simplification that was a NOOP. DAG size: 196 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:40,296 WARN L293 SmtUtils]: Spent 16.76s on a formula simplification. DAG size of input: 211 DAG size of output: 202 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:07:46,744 WARN L293 SmtUtils]: Spent 6.44s on a formula simplification that was a NOOP. DAG size: 196 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)