./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/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_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/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_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/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 b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:25:41,391 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:25:41,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-06 22:25:41,501 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:25:41,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:25:41,529 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:25:41,530 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:25:41,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:25:41,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:25:41,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:25:41,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:25:41,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:25:41,535 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:25:41,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:25:41,536 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:25:41,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:25:41,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:25:41,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:25:41,538 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 22:25:41,538 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 22:25:41,539 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 22:25:41,539 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:25:41,540 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:25:41,540 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:25:41,541 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:25:41,541 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:25:41,542 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:25:41,542 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:25:41,543 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:25:41,543 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:25:41,543 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:25:41,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:25:41,544 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:25:41,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:25:41,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:25:41,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:25:41,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:25:41,546 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:25:41,547 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_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b018c23c1a90f89310fc4f08bf16b02660af5a398ccd47f63d319e7a234c112b [2023-11-06 22:25:41,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:25:41,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:25:41,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:25:41,830 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:25:41,831 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:25:41,832 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2023-11-06 22:25:44,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:25:45,420 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:25:45,421 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/sv-benchmarks/c/goblint-regression/09-regions_13-arraycollapse_nr.i [2023-11-06 22:25:45,442 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/data/aa4a30146/7a027b17bb5e47c597976666d4f58f22/FLAGeaf4daab4 [2023-11-06 22:25:45,458 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/data/aa4a30146/7a027b17bb5e47c597976666d4f58f22 [2023-11-06 22:25:45,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:25:45,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:25:45,465 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:25:45,465 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:25:45,471 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:25:45,472 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:25:45" (1/1) ... [2023-11-06 22:25:45,473 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@110c4a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:45, skipping insertion in model container [2023-11-06 22:25:45,473 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:25:45" (1/1) ... [2023-11-06 22:25:45,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:25:46,226 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:25:46,260 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:25:46,362 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:25:46,492 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:25:46,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46 WrapperNode [2023-11-06 22:25:46,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:25:46,496 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:25:46,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:25:46,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:25:46,505 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,637 INFO L138 Inliner]: procedures = 370, calls = 37, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 168 [2023-11-06 22:25:46,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:25:46,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:25:46,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:25:46,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:25:46,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,674 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,674 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,694 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,697 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,721 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:25:46,728 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:25:46,729 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:25:46,729 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:25:46,730 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (1/1) ... [2023-11-06 22:25:46,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:25:46,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:25:46,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:25:46,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59e5aa02-66d7-40b2-bff0-0d555bc24ca5/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:25:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:25:46,796 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:25:46,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:25:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:25:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:25:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-06 22:25:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:25:46,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:25:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:25:46,799 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-06 22:25:46,799 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-06 22:25:46,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:25:46,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:25:46,803 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 22:25:46,972 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:25:46,974 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:25:47,587 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:25:47,599 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:25:47,607 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:25:47,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:47 BoogieIcfgContainer [2023-11-06 22:25:47,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:25:47,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:25:47,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:25:47,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:25:47,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:25:45" (1/3) ... [2023-11-06 22:25:47,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6875778c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:25:47, skipping insertion in model container [2023-11-06 22:25:47,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:25:46" (2/3) ... [2023-11-06 22:25:47,626 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6875778c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:25:47, skipping insertion in model container [2023-11-06 22:25:47,626 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:25:47" (3/3) ... [2023-11-06 22:25:47,627 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_13-arraycollapse_nr.i [2023-11-06 22:25:47,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:25:47,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 63 error locations. [2023-11-06 22:25:47,652 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:25:47,806 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:25:47,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 277 places, 278 transitions, 560 flow [2023-11-06 22:25:47,998 INFO L124 PetriNetUnfolderBase]: 5/277 cut-off events. [2023-11-06 22:25:47,998 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:25:48,005 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 277 events. 5/277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 417 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-11-06 22:25:48,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 277 places, 278 transitions, 560 flow [2023-11-06 22:25:48,026 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 277 transitions, 557 flow [2023-11-06 22:25:48,031 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:25:48,049 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 276 places, 277 transitions, 557 flow [2023-11-06 22:25:48,054 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 276 places, 277 transitions, 557 flow [2023-11-06 22:25:48,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 276 places, 277 transitions, 557 flow [2023-11-06 22:25:48,160 INFO L124 PetriNetUnfolderBase]: 5/277 cut-off events. [2023-11-06 22:25:48,161 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:25:48,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 277 events. 5/277 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 416 event pairs, 0 based on Foata normal form. 0/209 useless extension candidates. Maximal degree in co-relation 191. Up to 2 conditions per place. [2023-11-06 22:25:48,165 INFO L119 LiptonReduction]: Number of co-enabled transitions 3192 [2023-11-06 22:27:02,101 WARN L293 SmtUtils]: Spent 17.46s on a formula simplification. DAG size of input: 216 DAG size of output: 214 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:27:07,886 WARN L293 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:27:23,026 WARN L293 SmtUtils]: Spent 15.14s on a formula simplification. DAG size of input: 213 DAG size of output: 211 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:27:28,326 WARN L293 SmtUtils]: Spent 5.29s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:27:33,529 WARN L293 SmtUtils]: Spent 5.13s on a formula simplification. DAG size of input: 182 DAG size of output: 176 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:27:48,400 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification. DAG size of input: 208 DAG size of output: 202 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:28:06,561 WARN L293 SmtUtils]: Spent 8.96s on a formula simplification. DAG size of input: 211 DAG size of output: 205 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:28:14,911 WARN L293 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 205 DAG size of output: 199 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:28:28,319 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification. DAG size of input: 196 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:28:40,870 WARN L293 SmtUtils]: Spent 9.64s on a formula simplification. DAG size of input: 196 DAG size of output: 180 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:29:12,389 WARN L293 SmtUtils]: Spent 28.25s on a formula simplification. DAG size of input: 233 DAG size of output: 227 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:29:22,985 WARN L293 SmtUtils]: Spent 10.59s on a formula simplification that was a NOOP. DAG size: 214 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:29:51,376 WARN L293 SmtUtils]: Spent 28.39s on a formula simplification. DAG size of input: 227 DAG size of output: 221 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:29:57,189 WARN L293 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 207 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 22:30:02,449 WARN L293 SmtUtils]: Spent 5.26s on a formula simplification that was a NOOP. DAG size: 219 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)