./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:00:28,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:00:28,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-12 01:00:28,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:00:28,595 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:00:28,635 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:00:28,636 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:00:28,637 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:00:28,638 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:00:28,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:00:28,644 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:00:28,645 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:00:28,646 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:00:28,648 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:00:28,648 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:00:28,649 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:00:28,649 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:00:28,650 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:00:28,650 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:00:28,651 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:00:28,652 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:00:28,652 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:00:28,654 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:00:28,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 01:00:28,655 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:00:28,655 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:00:28,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:00:28,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:00:28,657 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 01:00:28,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:00:28,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 01:00:28,659 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 01:00:28,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:00:28,660 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:00:28,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 01:00:28,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:00:28,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:00:28,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:00:28,662 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:28,662 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:00:28,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:00:28,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 01:00:28,663 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:00:28,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:00:28,664 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 01:00:28,664 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:00:28,665 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:00:28,665 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2023-11-12 01:00:29,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:00:29,042 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:00:29,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:00:29,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:00:29,048 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:00:29,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-11-12 01:00:32,239 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:00:32,556 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:00:32,557 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2023-11-12 01:00:32,577 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/data/76b0b2ca2/591eefa403c849f1b11f6b605e010227/FLAG38513daf8 [2023-11-12 01:00:32,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/data/76b0b2ca2/591eefa403c849f1b11f6b605e010227 [2023-11-12 01:00:32,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:00:32,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:00:32,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:32,599 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:00:32,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:00:32,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:32" (1/1) ... [2023-11-12 01:00:32,607 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13460e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:32, skipping insertion in model container [2023-11-12 01:00:32,607 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:00:32" (1/1) ... [2023-11-12 01:00:32,686 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:00:33,186 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,187 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,187 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,188 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:33,266 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:00:33,327 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,333 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,333 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,334 WARN L1577 CHandler]: Possible shadowing of function new [2023-11-12 01:00:33,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:00:33,443 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:00:33,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33 WrapperNode [2023-11-12 01:00:33,444 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:00:33,445 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:33,446 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:00:33,446 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:00:33,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,493 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,538 INFO L138 Inliner]: procedures = 271, calls = 32, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 129 [2023-11-12 01:00:33,538 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:00:33,539 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:00:33,539 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:00:33,539 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:00:33,549 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,566 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,566 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,576 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,596 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,598 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,604 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:00:33,605 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:00:33,605 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:00:33,606 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:00:33,607 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (1/1) ... [2023-11-12 01:00:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:00:33,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:00:33,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:00:33,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b28c5da5-73eb-417f-882c-1e42d88b73d6/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:00:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-12 01:00:33,689 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-12 01:00:33,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:00:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 01:00:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:00:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:00:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:00:33,690 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 01:00:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:00:33,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:00:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 01:00:33,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:00:33,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:00:33,694 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 01:00:33,958 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:00:33,965 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:00:34,395 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:00:34,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:00:34,408 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 01:00:34,411 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:34 BoogieIcfgContainer [2023-11-12 01:00:34,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:00:34,417 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:00:34,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:00:34,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:00:34,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:00:32" (1/3) ... [2023-11-12 01:00:34,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571a1205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:34, skipping insertion in model container [2023-11-12 01:00:34,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:00:33" (2/3) ... [2023-11-12 01:00:34,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@571a1205 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:00:34, skipping insertion in model container [2023-11-12 01:00:34,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:00:34" (3/3) ... [2023-11-12 01:00:34,426 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2023-11-12 01:00:34,435 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 01:00:34,449 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:00:34,449 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-11-12 01:00:34,450 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:00:34,575 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 01:00:34,630 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:00:34,659 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 196 places, 203 transitions, 414 flow [2023-11-12 01:00:34,664 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 196 places, 203 transitions, 414 flow [2023-11-12 01:00:34,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 203 transitions, 414 flow [2023-11-12 01:00:34,786 INFO L124 PetriNetUnfolderBase]: 14/201 cut-off events. [2023-11-12 01:00:34,787 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 01:00:34,795 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 201 events. 14/201 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 522 event pairs, 0 based on Foata normal form. 0/173 useless extension candidates. Maximal degree in co-relation 141. Up to 2 conditions per place. [2023-11-12 01:00:34,803 INFO L119 LiptonReduction]: Number of co-enabled transitions 7854 [2023-11-12 01:00:57,424 WARN L293 SmtUtils]: Spent 11.12s on a formula simplification. DAG size of input: 166 DAG size of output: 165 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-12 01:01:11,494 WARN L293 SmtUtils]: Spent 11.56s on a formula simplification. DAG size of input: 168 DAG size of output: 166 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-12 01:01:26,811 WARN L293 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 165 DAG size of output: 163 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)