./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix042.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix042.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 94656be5559ee6994f8d95e82c06571dfbe5b53833c4e842ade3fa022ec89a57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:58:48,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:58:49,092 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-06 22:58:49,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:58:49,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:58:49,149 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:58:49,151 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:58:49,152 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:58:49,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:58:49,160 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:58:49,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:58:49,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:58:49,163 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:58:49,166 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:58:49,166 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:58:49,167 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:58:49,168 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:58:49,168 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:58:49,169 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:58:49,170 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:58:49,170 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:58:49,171 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:58:49,172 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-06 22:58:49,172 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:58:49,173 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:58:49,173 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:58:49,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:58:49,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:58:49,176 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:58:49,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:58:49,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:49,179 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:58:49,179 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:58:49,180 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:58:49,180 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:58:49,181 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:58:49,181 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:58:49,181 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:58:49,182 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:58:49,182 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:58:49,183 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:58:49,183 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94656be5559ee6994f8d95e82c06571dfbe5b53833c4e842ade3fa022ec89a57 [2023-11-06 22:58:49,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:58:49,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:58:49,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:58:49,576 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:58:49,576 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:58:49,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/pthread-wmm/mix042.opt.i [2023-11-06 22:58:53,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:58:53,407 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:58:53,412 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/sv-benchmarks/c/pthread-wmm/mix042.opt.i [2023-11-06 22:58:53,431 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/data/f5d9a736c/f096383c5fb545f58f6d5e05c2072376/FLAGf8b9a3559 [2023-11-06 22:58:53,446 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/data/f5d9a736c/f096383c5fb545f58f6d5e05c2072376 [2023-11-06 22:58:53,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:58:53,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:58:53,452 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:53,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:58:53,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:58:53,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,460 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b7b15f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:53, skipping insertion in model container [2023-11-06 22:58:53,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:58:53" (1/1) ... [2023-11-06 22:58:53,532 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:58:54,005 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:54,023 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:58:54,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:58:54,199 WARN L672 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:54,199 WARN L672 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:58:54,208 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:58:54,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54 WrapperNode [2023-11-06 22:58:54,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:58:54,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:54,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:58:54,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:58:54,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,420 INFO L138 Inliner]: procedures = 176, calls = 59, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 960 [2023-11-06 22:58:54,432 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:58:54,433 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:58:54,433 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:58:54,433 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:58:54,445 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,445 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,537 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,573 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:58:54,595 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:58:54,596 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:58:54,596 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:58:54,597 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (1/1) ... [2023-11-06 22:58:54,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:58:54,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:58:54,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:58:54,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19415b66-a1f2-4fe8-81db-9bb978581b33/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:58:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:58:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-06 22:58:54,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:58:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:58:54,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:58:54,695 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-06 22:58:54,695 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-06 22:58:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-06 22:58:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-06 22:58:54,696 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-06 22:58:54,696 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-06 22:58:54,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:58:54,698 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-06 22:58:54,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:58:54,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:58:54,701 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-06 22:58:54,908 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:58:54,910 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:58:56,620 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:59:23,516 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:59:23,517 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:59:23,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:23 BoogieIcfgContainer [2023-11-06 22:59:23,520 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:59:23,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:59:23,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:59:23,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:59:23,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:58:53" (1/3) ... [2023-11-06 22:59:23,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f072a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:23, skipping insertion in model container [2023-11-06 22:59:23,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:58:54" (2/3) ... [2023-11-06 22:59:23,533 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f072a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:59:23, skipping insertion in model container [2023-11-06 22:59:23,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:59:23" (3/3) ... [2023-11-06 22:59:23,535 INFO L112 eAbstractionObserver]: Analyzing ICFG mix042.opt.i [2023-11-06 22:59:23,553 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-06 22:59:23,764 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:59:23,765 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 220 error locations. [2023-11-06 22:59:23,765 INFO L519 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-06 22:59:26,521 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-06 22:59:26,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 348 places, 341 transitions, 694 flow [2023-11-06 22:59:28,103 INFO L124 PetriNetUnfolderBase]: 3/338 cut-off events. [2023-11-06 22:59:28,103 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:59:28,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 338 events. 3/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1836 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 301. Up to 2 conditions per place. [2023-11-06 22:59:28,114 INFO L82 GeneralOperation]: Start removeDead. Operand has 348 places, 341 transitions, 694 flow [2023-11-06 22:59:28,135 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 338 transitions, 685 flow [2023-11-06 22:59:28,140 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-06 22:59:28,151 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 345 places, 338 transitions, 685 flow [2023-11-06 22:59:28,155 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 345 places, 338 transitions, 685 flow [2023-11-06 22:59:28,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 338 transitions, 685 flow [2023-11-06 22:59:29,434 INFO L124 PetriNetUnfolderBase]: 3/338 cut-off events. [2023-11-06 22:59:29,435 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-06 22:59:29,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 348 conditions, 338 events. 3/338 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 1827 event pairs, 0 based on Foata normal form. 0/115 useless extension candidates. Maximal degree in co-relation 301. Up to 2 conditions per place. [2023-11-06 22:59:29,468 INFO L119 LiptonReduction]: Number of co-enabled transitions 45996 [2023-11-06 22:59:52,160 WARN L293 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 1300 DAG size of output: 348 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:00:05,237 WARN L293 SmtUtils]: Spent 11.75s on a formula simplification. DAG size of input: 1495 DAG size of output: 435 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:02:41,060 WARN L293 SmtUtils]: Spent 2.54m on a formula simplification. DAG size of input: 6074 DAG size of output: 1698 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2023-11-06 23:02:56,468 WARN L293 SmtUtils]: Spent 15.35s on a formula simplification that was a NOOP. DAG size: 1698 (called from [L 302] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)