./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 9bd2c7ff 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_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ --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 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:19:57,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:19:57,333 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-19 04:19:57,339 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:19:57,340 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:19:57,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:19:57,367 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:19:57,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:19:57,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:19:57,370 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:19:57,370 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:19:57,371 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:19:57,371 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:19:57,372 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:19:57,373 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:19:57,373 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:19:57,374 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:19:57,374 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:19:57,375 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:19:57,376 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:19:57,376 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:19:57,377 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:19:57,378 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:19:57,378 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:19:57,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:19:57,379 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:19:57,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:19:57,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:19:57,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:19:57,381 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-19 04:19:57,381 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-19 04:19:57,382 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-19 04:19:57,382 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:19:57,382 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:19:57,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:19:57,383 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:19:57,384 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:19:57,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:19:57,385 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:19:57,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:19:57,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:19:57,386 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:19:57,386 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:19:57,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:19:57,387 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:19:57,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:19:57,388 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_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 [2023-11-19 04:19:57,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:19:57,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:19:57,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:19:57,698 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:19:57,700 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:19:57,701 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2023-11-19 04:20:00,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:20:01,105 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:20:01,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2023-11-19 04:20:01,130 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/data/6e3c7770b/08aa63d2273f4f3091037e3d2b6452fa/FLAG6263d6831 [2023-11-19 04:20:01,147 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/data/6e3c7770b/08aa63d2273f4f3091037e3d2b6452fa [2023-11-19 04:20:01,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:20:01,160 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:20:01,162 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:01,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:20:01,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:20:01,169 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,170 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7842bbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01, skipping insertion in model container [2023-11-19 04:20:01,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,250 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:20:01,702 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:01,715 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:20:01,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:20:01,843 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:01,843 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:20:01,851 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:20:01,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01 WrapperNode [2023-11-19 04:20:01,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:20:01,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:01,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:20:01,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:20:01,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,893 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,930 INFO L138 Inliner]: procedures = 177, calls = 92, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 186 [2023-11-19 04:20:01,942 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:20:01,943 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:20:01,943 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:20:01,943 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:20:01,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,958 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,972 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,975 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,982 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:01,988 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:20:01,989 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:20:01,989 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:20:01,989 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:20:01,990 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (1/1) ... [2023-11-19 04:20:02,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:20:02,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:20:02,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:20:02,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6f92d9c-dbac-4825-b54a-484c22f9887b/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:20:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:20:02,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-19 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:20:02,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:20:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-19 04:20:02,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-19 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-19 04:20:02,096 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-19 04:20:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-19 04:20:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-19 04:20:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-19 04:20:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-19 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-19 04:20:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:20:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:20:02,102 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 04:20:02,319 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:20:02,321 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:20:03,152 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:20:04,157 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:20:04,158 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:20:04,162 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:04 BoogieIcfgContainer [2023-11-19 04:20:04,163 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:20:04,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:20:04,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:20:04,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:20:04,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:20:01" (1/3) ... [2023-11-19 04:20:04,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a74e86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:04, skipping insertion in model container [2023-11-19 04:20:04,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:20:01" (2/3) ... [2023-11-19 04:20:04,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a74e86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:20:04, skipping insertion in model container [2023-11-19 04:20:04,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:20:04" (3/3) ... [2023-11-19 04:20:04,172 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.opt.i [2023-11-19 04:20:04,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:20:04,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-19 04:20:04,194 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:20:04,480 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 04:20:04,529 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:20:04,552 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 291 transitions, 598 flow [2023-11-19 04:20:04,558 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 291 transitions, 598 flow [2023-11-19 04:20:04,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 291 transitions, 598 flow [2023-11-19 04:20:04,799 INFO L124 PetriNetUnfolderBase]: 76/287 cut-off events. [2023-11-19 04:20:04,799 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 04:20:04,809 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 287 events. 76/287 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 467 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 229. Up to 4 conditions per place. [2023-11-19 04:20:04,829 INFO L119 LiptonReduction]: Number of co-enabled transitions 28738 [2023-11-19 04:20:50,571 INFO L134 LiptonReduction]: Checked pairs total: 85342 [2023-11-19 04:20:50,571 INFO L136 LiptonReduction]: Total number of compositions: 327 [2023-11-19 04:20:50,581 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 113 places, 103 transitions, 222 flow