./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/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_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:42:06,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:42:06,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:42:06,214 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:42:06,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:42:06,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:42:06,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:42:06,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:42:06,255 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:42:06,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:42:06,261 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:42:06,262 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:42:06,262 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:42:06,264 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:42:06,265 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:42:06,265 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:42:06,266 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:42:06,266 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:42:06,267 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:42:06,267 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:42:06,268 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:42:06,268 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:42:06,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:42:06,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:42:06,271 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:42:06,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:42:06,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:42:06,272 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:42:06,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:42:06,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:42:06,275 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:42:06,275 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:42:06,275 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:42:06,276 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:42:06,292 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:42:06,294 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:42:06,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:42:06,295 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:42:06,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:06,296 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:42:06,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:42:06,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:42:06,297 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:42:06,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:42:06,298 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:42:06,299 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:42:06,299 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:42:06,299 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_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3d3e405a2d3cb3ab8b02ed87788ef59412b7b81517118cc37c044f334087868 [2023-11-12 00:42:06,609 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:42:06,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:42:06,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:42:06,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:42:06,637 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:42:06,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2023-11-12 00:42:09,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:42:10,090 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:42:10,091 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/sv-benchmarks/c/pthread-wmm/mix036.oepc.i [2023-11-12 00:42:10,113 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/data/8743e9ec1/903c69bad6bb4168bc69269add558d20/FLAG426a25f21 [2023-11-12 00:42:10,133 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/data/8743e9ec1/903c69bad6bb4168bc69269add558d20 [2023-11-12 00:42:10,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:42:10,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:42:10,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:10,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:42:10,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:42:10,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:10,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d62c9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10, skipping insertion in model container [2023-11-12 00:42:10,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:10,239 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:42:10,715 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:10,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:42:10,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:42:10,940 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:10,941 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:42:10,950 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:42:10,950 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10 WrapperNode [2023-11-12 00:42:10,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:42:10,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:10,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:42:10,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:42:10,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,066 INFO L138 Inliner]: procedures = 177, calls = 72, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 526 [2023-11-12 00:42:11,066 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:42:11,067 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:42:11,067 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:42:11,067 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:42:11,091 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,091 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,129 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,145 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:42:11,198 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:42:11,198 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:42:11,198 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:42:11,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (1/1) ... [2023-11-12 00:42:11,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:42:11,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:42:11,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:42:11,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed330d50-ac1f-4fcd-b4f8-6ed6c07d51a7/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:42:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:42:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-12 00:42:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:42:11,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:42:11,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:42:11,293 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-12 00:42:11,293 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-12 00:42:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-12 00:42:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-12 00:42:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-12 00:42:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-12 00:42:11,294 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2023-11-12 00:42:11,294 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2023-11-12 00:42:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:42:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-12 00:42:11,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:42:11,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:42:11,299 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 00:42:11,582 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:42:11,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:42:13,355 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:42:37,328 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:42:37,329 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:42:37,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:37 BoogieIcfgContainer [2023-11-12 00:42:37,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:42:37,335 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:42:37,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:42:37,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:42:37,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:42:10" (1/3) ... [2023-11-12 00:42:37,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caee966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:37, skipping insertion in model container [2023-11-12 00:42:37,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:42:10" (2/3) ... [2023-11-12 00:42:37,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4caee966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:42:37, skipping insertion in model container [2023-11-12 00:42:37,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:42:37" (3/3) ... [2023-11-12 00:42:37,342 INFO L112 eAbstractionObserver]: Analyzing ICFG mix036.oepc.i [2023-11-12 00:42:37,354 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:42:37,363 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:42:37,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 285 error locations. [2023-11-12 00:42:37,364 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:42:43,461 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:42:43,511 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:42:43,526 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 439 places, 429 transitions, 874 flow [2023-11-12 00:42:43,529 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 439 places, 429 transitions, 874 flow [2023-11-12 00:42:43,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 439 places, 429 transitions, 874 flow [2023-11-12 00:42:45,633 INFO L124 PetriNetUnfolderBase]: 3/425 cut-off events. [2023-11-12 00:42:45,634 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:42:45,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 438 conditions, 425 events. 3/425 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 2230 event pairs, 0 based on Foata normal form. 0/137 useless extension candidates. Maximal degree in co-relation 385. Up to 2 conditions per place. [2023-11-12 00:42:45,697 INFO L119 LiptonReduction]: Number of co-enabled transitions 99834