./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 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_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/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_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/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_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/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 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:11:06,039 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:11:06,153 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2023-11-12 00:11:06,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:11:06,160 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:11:06,197 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:11:06,197 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:11:06,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:11:06,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:11:06,204 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:11:06,204 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:11:06,206 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:11:06,206 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:11:06,208 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:11:06,208 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:11:06,209 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:11:06,209 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:11:06,210 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:11:06,210 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:11:06,211 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:11:06,211 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:11:06,212 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:11:06,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:11:06,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:11:06,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:11:06,214 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:11:06,215 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:11:06,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:11:06,236 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:11:06,237 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:11:06,238 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:11:06,239 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:11:06,239 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:11:06,239 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:11:06,239 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:11:06,240 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:11:06,240 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:11:06,241 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:11:06,241 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:11:06,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:06,242 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:11:06,242 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:11:06,242 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:11:06,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:11:06,243 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:11:06,244 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:11:06,244 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_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b69d29db6700923687b32c5d8fab6e8f05fe2198d87348098263d957793e472 [2023-11-12 00:11:06,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:11:06,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:11:06,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:11:06,582 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:11:06,583 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:11:06,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2023-11-12 00:11:09,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:11:09,961 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:11:09,962 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/sv-benchmarks/c/pthread-wmm/safe016_power.opt.i [2023-11-12 00:11:09,981 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/data/82846229d/f218149477ee4ab5bef418f00afa7457/FLAGa1818f29f [2023-11-12 00:11:09,999 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/data/82846229d/f218149477ee4ab5bef418f00afa7457 [2023-11-12 00:11:10,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:11:10,009 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:11:10,013 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:10,013 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:11:10,019 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:11:10,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51765608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10, skipping insertion in model container [2023-11-12 00:11:10,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,097 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:11:10,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:10,594 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:11:10,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:11:10,736 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:10,737 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:11:10,745 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:11:10,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10 WrapperNode [2023-11-12 00:11:10,746 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:11:10,747 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:10,747 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:11:10,747 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:11:10,756 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,833 INFO L138 Inliner]: procedures = 177, calls = 92, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 186 [2023-11-12 00:11:10,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:11:10,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:11:10,835 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:11:10,835 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:11:10,850 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,857 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,870 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,910 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,914 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:11:10,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:11:10,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:11:10,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:11:10,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (1/1) ... [2023-11-12 00:11:10,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:11:10,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:11:10,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:11:11,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52ea7244-d6d5-4a93-bfb2-c1f5f443283e/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:11:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:11:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:11:11,063 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:11:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:11:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:11:11,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:11:11,066 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:11:11,067 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:11:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:11:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:11:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:11:11,068 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:11:11,068 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:11:11,069 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:11:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:11:11,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:11:11,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:11:11,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:11:11,073 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 00:11:11,314 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:11:11,317 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:11:12,392 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:11:13,776 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:11:13,777 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:11:13,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:13 BoogieIcfgContainer [2023-11-12 00:11:13,782 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:11:13,786 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:11:13,787 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:11:13,791 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:11:13,791 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:11:10" (1/3) ... [2023-11-12 00:11:13,792 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1dc14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:13, skipping insertion in model container [2023-11-12 00:11:13,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:11:10" (2/3) ... [2023-11-12 00:11:13,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c1dc14d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:11:13, skipping insertion in model container [2023-11-12 00:11:13,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:11:13" (3/3) ... [2023-11-12 00:11:13,797 INFO L112 eAbstractionObserver]: Analyzing ICFG safe016_power.opt.i [2023-11-12 00:11:13,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:11:13,822 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 64 error locations. [2023-11-12 00:11:13,822 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:11:14,093 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:11:14,135 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:11:14,151 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 228 places, 218 transitions, 452 flow [2023-11-12 00:11:14,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 228 places, 218 transitions, 452 flow [2023-11-12 00:11:14,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 218 transitions, 452 flow [2023-11-12 00:11:14,314 INFO L124 PetriNetUnfolderBase]: 3/214 cut-off events. [2023-11-12 00:11:14,314 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:11:14,322 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 214 events. 3/214 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 381 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 156. Up to 2 conditions per place. [2023-11-12 00:11:14,333 INFO L119 LiptonReduction]: Number of co-enabled transitions 11886 [2023-11-12 00:11:43,535 WARN L293 SmtUtils]: Spent 7.44s on a formula simplification. DAG size of input: 257 DAG size of output: 254 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)