./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe025_power.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_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe025_power.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b4ccd44d6ad5c937026f9c7e728382cb906c06e55c568dcdbddf828dfe89bc6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 20:29:09,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 20:29:09,618 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-06 20:29:09,624 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 20:29:09,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 20:29:09,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 20:29:09,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 20:29:09,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 20:29:09,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 20:29:09,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 20:29:09,658 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-06 20:29:09,659 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-06 20:29:09,659 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-06 20:29:09,660 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-06 20:29:09,661 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-06 20:29:09,661 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-06 20:29:09,662 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-06 20:29:09,662 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-06 20:29:09,663 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-06 20:29:09,664 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-06 20:29:09,664 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-06 20:29:09,666 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-06 20:29:09,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 20:29:09,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 20:29:09,668 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 20:29:09,669 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 20:29:09,669 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 20:29:09,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 20:29:09,670 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 20:29:09,670 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-06 20:29:09,671 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-06 20:29:09,672 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-06 20:29:09,673 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 20:29:09,673 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 20:29:09,673 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 20:29:09,673 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 20:29:09,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 20:29:09,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 20:29:09,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 20:29:09,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:09,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 20:29:09,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 20:29:09,676 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-06 20:29:09,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 20:29:09,677 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-06 20:29:09,677 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 20:29:09,678 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_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b4ccd44d6ad5c937026f9c7e728382cb906c06e55c568dcdbddf828dfe89bc6 [2023-11-06 20:29:09,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 20:29:10,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 20:29:10,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 20:29:10,027 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 20:29:10,027 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 20:29:10,029 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/../../sv-benchmarks/c/pthread-wmm/safe025_power.i [2023-11-06 20:29:13,549 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 20:29:13,875 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 20:29:13,876 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/sv-benchmarks/c/pthread-wmm/safe025_power.i [2023-11-06 20:29:13,916 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/data/179fb52db/9cf3ee868a4e480e9f9c7b98e67e060b/FLAGada30d25e [2023-11-06 20:29:13,940 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/data/179fb52db/9cf3ee868a4e480e9f9c7b98e67e060b [2023-11-06 20:29:13,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 20:29:13,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 20:29:13,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:13,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 20:29:13,954 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 20:29:13,955 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:13" (1/1) ... [2023-11-06 20:29:13,957 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28ea4985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:13, skipping insertion in model container [2023-11-06 20:29:13,957 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:29:13" (1/1) ... [2023-11-06 20:29:14,025 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 20:29:14,587 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:14,605 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 20:29:14,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 20:29:14,824 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:14,825 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 20:29:14,833 INFO L206 MainTranslator]: Completed translation [2023-11-06 20:29:14,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14 WrapperNode [2023-11-06 20:29:14,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 20:29:14,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:14,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 20:29:14,837 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 20:29:14,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:14,888 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:14,950 INFO L138 Inliner]: procedures = 176, calls = 87, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 237 [2023-11-06 20:29:14,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 20:29:14,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 20:29:14,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 20:29:14,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 20:29:14,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:14,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:14,984 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:14,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:15,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:15,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:15,050 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:15,069 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:15,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 20:29:15,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 20:29:15,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 20:29:15,077 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 20:29:15,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (1/1) ... [2023-11-06 20:29:15,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 20:29:15,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/z3 [2023-11-06 20:29:15,124 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 20:29:15,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_feb89292-c7dd-44ad-998a-3de48a95cfdf/bin/utaipan-verify-FOvIYxoinp/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 20:29:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 20:29:15,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 20:29:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 20:29:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 20:29:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 20:29:15,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 20:29:15,217 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 20:29:15,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 20:29:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 20:29:15,218 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 20:29:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 20:29:15,219 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 20:29:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 20:29:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 20:29:15,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 20:29:15,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 20:29:15,223 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 20:29:15,432 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 20:29:15,435 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 20:29:16,288 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 20:29:17,478 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 20:29:17,478 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 20:29:17,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:17 BoogieIcfgContainer [2023-11-06 20:29:17,481 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 20:29:17,484 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 20:29:17,484 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 20:29:17,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 20:29:17,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:29:13" (1/3) ... [2023-11-06 20:29:17,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7672bf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:17, skipping insertion in model container [2023-11-06 20:29:17,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:29:14" (2/3) ... [2023-11-06 20:29:17,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7672bf36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:29:17, skipping insertion in model container [2023-11-06 20:29:17,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:29:17" (3/3) ... [2023-11-06 20:29:17,491 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_power.i [2023-11-06 20:29:17,510 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 20:29:17,511 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-06 20:29:17,511 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 20:29:17,684 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 20:29:17,719 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-06 20:29:17,732 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 206 places, 199 transitions, 410 flow [2023-11-06 20:29:17,735 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 206 places, 199 transitions, 410 flow [2023-11-06 20:29:17,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 206 places, 199 transitions, 410 flow [2023-11-06 20:29:17,844 INFO L124 PetriNetUnfolderBase]: 3/196 cut-off events. [2023-11-06 20:29:17,844 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 20:29:17,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 196 events. 3/196 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 370 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2023-11-06 20:29:17,859 INFO L119 LiptonReduction]: Number of co-enabled transitions 9868