./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/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_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:09:45,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:09:45,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 04:09:45,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:09:45,140 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:09:45,172 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:09:45,173 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:09:45,173 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:09:45,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:09:45,175 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:09:45,176 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:09:45,177 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:09:45,177 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:09:45,178 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:09:45,179 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:09:45,179 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:09:45,180 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:09:45,180 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:09:45,181 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:09:45,181 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:09:45,182 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:09:45,185 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:09:45,186 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:09:45,187 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:09:45,187 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:09:45,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:09:45,188 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:09:45,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:09:45,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:09:45,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:09:45,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:09:45,191 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:09:45,191 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:09:45,192 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:09:45,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:09:45,193 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:09:45,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:09:45,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:09:45,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:45,195 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:09:45,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:09:45,196 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:09:45,196 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:09:45,197 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:09:45,197 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:09:45,198 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:09:45,198 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:09:45,198 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_53d98550-8e6c-4228-9968-96422c973843/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2023-11-19 04:09:45,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:09:45,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:09:45,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:09:45,513 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:09:45,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:09:45,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-19 04:09:48,650 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:09:48,985 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:09:48,987 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2023-11-19 04:09:49,022 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/data/d2a08561a/b4d406261ba24329a8717e1c6dc3a5f9/FLAG582cd0b50 [2023-11-19 04:09:49,038 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/data/d2a08561a/b4d406261ba24329a8717e1c6dc3a5f9 [2023-11-19 04:09:49,041 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:09:49,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:09:49,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:49,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:09:49,058 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:09:49,059 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:49" (1/1) ... [2023-11-19 04:09:49,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278dbe52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:49, skipping insertion in model container [2023-11-19 04:09:49,061 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:09:49" (1/1) ... [2023-11-19 04:09:49,122 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:09:49,769 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,770 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,770 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,771 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:49,856 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:09:49,952 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,953 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,954 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,954 WARN L1588 CHandler]: Possible shadowing of function new [2023-11-19 04:09:49,969 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:09:50,057 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:09:50,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50 WrapperNode [2023-11-19 04:09:50,058 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:09:50,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:50,059 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:09:50,059 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:09:50,067 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,136 INFO L138 Inliner]: procedures = 279, calls = 52, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 250 [2023-11-19 04:09:50,136 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:09:50,137 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:09:50,137 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:09:50,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:09:50,148 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,196 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,199 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:09:50,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:09:50,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:09:50,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:09:50,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (1/1) ... [2023-11-19 04:09:50,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:09:50,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:09:50,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:09:50,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d98550-8e6c-4228-9968-96422c973843/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:09:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:09:50,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:09:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:09:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:09:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:09:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-19 04:09:50,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:09:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:09:50,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:09:50,310 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-11-19 04:09:50,310 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-11-19 04:09:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:09:50,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:09:50,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:09:50,313 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 04:09:50,599 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:09:50,605 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:09:51,196 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:09:51,211 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:09:51,211 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-19 04:09:51,218 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:51 BoogieIcfgContainer [2023-11-19 04:09:51,218 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:09:51,222 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:09:51,222 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:09:51,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:09:51,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:09:49" (1/3) ... [2023-11-19 04:09:51,227 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b98d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:51, skipping insertion in model container [2023-11-19 04:09:51,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:09:50" (2/3) ... [2023-11-19 04:09:51,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b98d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:09:51, skipping insertion in model container [2023-11-19 04:09:51,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:09:51" (3/3) ... [2023-11-19 04:09:51,230 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2023-11-19 04:09:51,241 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 04:09:51,256 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:09:51,256 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-11-19 04:09:51,256 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 04:09:51,374 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-19 04:09:51,419 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 04:09:51,436 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 297 transitions, 601 flow [2023-11-19 04:09:51,439 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 297 transitions, 601 flow [2023-11-19 04:09:51,442 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 297 transitions, 601 flow [2023-11-19 04:09:51,573 INFO L124 PetriNetUnfolderBase]: 30/316 cut-off events. [2023-11-19 04:09:51,597 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2023-11-19 04:09:51,624 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 316 events. 30/316 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 797 event pairs, 0 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 170. Up to 4 conditions per place. [2023-11-19 04:09:51,630 INFO L119 LiptonReduction]: Number of co-enabled transitions 6206 [2023-11-19 04:10:26,430 WARN L293 SmtUtils]: Spent 6.80s on a formula simplification. DAG size of input: 159 DAG size of output: 157 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 04:10:34,499 WARN L293 SmtUtils]: Spent 6.32s on a formula simplification. DAG size of input: 159 DAG size of output: 157 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-19 04:10:51,547 WARN L293 SmtUtils]: Spent 14.33s on a formula simplification. DAG size of input: 160 DAG size of output: 159 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)