./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/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_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 01:02:14,306 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 01:02:14,415 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 01:02:14,426 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 01:02:14,427 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 01:02:14,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 01:02:14,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 01:02:14,472 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 01:02:14,473 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 01:02:14,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 01:02:14,475 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 01:02:14,476 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 01:02:14,476 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 01:02:14,478 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 01:02:14,479 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 01:02:14,480 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 01:02:14,481 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 01:02:14,485 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 01:02:14,486 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 01:02:14,486 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 01:02:14,487 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 01:02:14,487 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 01:02:14,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 01:02:14,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 01:02:14,489 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 01:02:14,489 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 01:02:14,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 01:02:14,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 01:02:14,491 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 01:02:14,491 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 01:02:14,492 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 01:02:14,493 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 01:02:14,493 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 01:02:14,493 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 01:02:14,493 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 01:02:14,494 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 01:02:14,494 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 01:02:14,494 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 01:02:14,494 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 01:02:14,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:14,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 01:02:14,496 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 01:02:14,496 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 01:02:14,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 01:02:14,497 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 01:02:14,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 01:02:14,497 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_e0f52ee9-c844-4a79-9fe3-35668d168475/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47976145f2a7f206dd7d2e7a0ffeac879f94f33f7a5b87161ebd997173567eb0 [2023-11-12 01:02:14,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 01:02:14,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 01:02:14,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 01:02:14,820 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 01:02:14,822 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 01:02:14,823 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-12 01:02:17,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 01:02:18,261 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 01:02:18,264 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/sv-benchmarks/c/weaver/chl-nzb-file-subst.wvr.c [2023-11-12 01:02:18,277 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/data/53068579e/505d2d2ba2f74c4d8441b47b9a66b282/FLAGed8702112 [2023-11-12 01:02:18,303 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/data/53068579e/505d2d2ba2f74c4d8441b47b9a66b282 [2023-11-12 01:02:18,313 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 01:02:18,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 01:02:18,322 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:18,322 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 01:02:18,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 01:02:18,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522f79d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18, skipping insertion in model container [2023-11-12 01:02:18,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 01:02:18,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:18,690 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 01:02:18,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 01:02:18,769 INFO L206 MainTranslator]: Completed translation [2023-11-12 01:02:18,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18 WrapperNode [2023-11-12 01:02:18,770 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 01:02:18,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:18,772 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 01:02:18,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 01:02:18,781 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,798 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,859 INFO L138 Inliner]: procedures = 26, calls = 77, calls flagged for inlining = 29, calls inlined = 43, statements flattened = 608 [2023-11-12 01:02:18,860 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 01:02:18,861 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 01:02:18,861 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 01:02:18,861 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 01:02:18,873 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,873 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,906 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,923 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 01:02:18,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 01:02:18,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 01:02:18,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 01:02:18,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (1/1) ... [2023-11-12 01:02:18,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 01:02:18,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 01:02:18,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 01:02:19,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f52ee9-c844-4a79-9fe3-35668d168475/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 01:02:19,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 01:02:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 01:02:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 01:02:19,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 01:02:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 01:02:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 01:02:19,039 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 01:02:19,039 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 01:02:19,041 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 01:02:19,041 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 01:02:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 01:02:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 01:02:19,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 01:02:19,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 01:02:19,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 01:02:19,045 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 01:02:19,260 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 01:02:19,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 01:02:20,452 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 01:02:20,478 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 01:02:20,479 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 01:02:20,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:20 BoogieIcfgContainer [2023-11-12 01:02:20,484 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 01:02:20,488 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 01:02:20,488 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 01:02:20,493 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 01:02:20,494 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 01:02:18" (1/3) ... [2023-11-12 01:02:20,495 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6dbe21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:20, skipping insertion in model container [2023-11-12 01:02:20,495 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 01:02:18" (2/3) ... [2023-11-12 01:02:20,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a6dbe21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 01:02:20, skipping insertion in model container [2023-11-12 01:02:20,498 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 01:02:20" (3/3) ... [2023-11-12 01:02:20,500 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-subst.wvr.c [2023-11-12 01:02:20,523 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 01:02:20,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2023-11-12 01:02:20,523 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 01:02:20,832 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 01:02:20,895 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 01:02:20,914 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 800 places, 863 transitions, 1747 flow [2023-11-12 01:02:20,917 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 800 places, 863 transitions, 1747 flow [2023-11-12 01:02:20,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 800 places, 863 transitions, 1747 flow [2023-11-12 01:02:21,639 INFO L124 PetriNetUnfolderBase]: 73/860 cut-off events. [2023-11-12 01:02:21,639 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 01:02:21,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 873 conditions, 860 events. 73/860 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 3220 event pairs, 0 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 630. Up to 2 conditions per place. [2023-11-12 01:02:21,778 INFO L119 LiptonReduction]: Number of co-enabled transitions 237120