./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/mix053.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:06:56,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:06:56,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:06:56,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:06:56,130 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:06:56,164 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:06:56,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:06:56,167 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:06:56,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:06:56,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:06:56,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:06:56,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:06:56,170 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:06:56,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:06:56,173 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:06:56,173 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:06:56,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:06:56,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:06:56,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:06:56,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:06:56,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:06:56,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:06:56,177 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:06:56,177 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:06:56,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:06:56,178 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:06:56,178 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:06:56,178 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:06:56,179 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:06:56,179 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:06:56,180 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:06:56,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:06:56,180 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:06:56,181 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:06:56,181 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:06:56,181 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:06:56,182 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:06:56,182 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:06:56,182 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:06:56,183 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:06:56,183 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:06:56,184 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_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 998817f829569afa1d1e3eda89c2594d280c8ae81957c207a6b68804966cf3a6 [2024-10-31 22:06:56,446 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:06:56,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:06:56,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:06:56,481 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:06:56,481 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:06:56,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-wmm/mix053.opt.i Unable to find full path for "g++" [2024-10-31 22:06:58,500 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:06:58,848 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:06:58,849 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/sv-benchmarks/c/pthread-wmm/mix053.opt.i [2024-10-31 22:06:58,870 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/data/cc592b53f/6efedd59a9b140e08df3a5aa02711a58/FLAG2a68f549e [2024-10-31 22:06:59,073 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/data/cc592b53f/6efedd59a9b140e08df3a5aa02711a58 [2024-10-31 22:06:59,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:06:59,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:06:59,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:59,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:06:59,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:06:59,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,092 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f2000d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59, skipping insertion in model container [2024-10-31 22:06:59,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,161 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:06:59,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:59,731 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:06:59,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:06:59,866 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:06:59,867 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59 WrapperNode [2024-10-31 22:06:59,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:06:59,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:59,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:06:59,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:06:59,875 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,947 INFO L138 Inliner]: procedures = 176, calls = 52, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 498 [2024-10-31 22:06:59,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:06:59,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:06:59,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:06:59,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:06:59,960 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,966 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:06:59,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:07:00,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:07:00,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:07:00,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:07:00,005 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:07:00,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (1/1) ... [2024-10-31 22:07:00,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:07:00,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:07:00,046 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:07:00,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f46f35e6-29be-44ce-88b0-9c354082835d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:07:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-31 22:07:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:07:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-31 22:07:00,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-31 22:07:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-31 22:07:00,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-31 22:07:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-31 22:07:00,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-31 22:07:00,095 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-31 22:07:00,095 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-31 22:07:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:07:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-31 22:07:00,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:07:00,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:07:00,098 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:07:00,340 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:07:00,350 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:07:01,966 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:07:01,966 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:07:06,527 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:07:06,528 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 22:07:06,528 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:06 BoogieIcfgContainer [2024-10-31 22:07:06,528 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:07:06,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:07:06,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:07:06,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:07:06,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:06:59" (1/3) ... [2024-10-31 22:07:06,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e568919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:06, skipping insertion in model container [2024-10-31 22:07:06,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:06:59" (2/3) ... [2024-10-31 22:07:06,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e568919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:07:06, skipping insertion in model container [2024-10-31 22:07:06,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:07:06" (3/3) ... [2024-10-31 22:07:06,541 INFO L112 eAbstractionObserver]: Analyzing ICFG mix053.opt.i [2024-10-31 22:07:06,563 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:07:06,563 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 195 error locations. [2024-10-31 22:07:06,564 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:07:06,970 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:07:07,018 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 334 places, 324 transitions, 664 flow [2024-10-31 22:07:07,224 INFO L124 PetriNetUnfolderBase]: 3/320 cut-off events. [2024-10-31 22:07:07,224 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:07,235 INFO L83 FinitePrefix]: Finished finitePrefix Result has 333 conditions, 320 events. 3/320 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 1587 event pairs, 0 based on Foata normal form. 0/122 useless extension candidates. Maximal degree in co-relation 284. Up to 2 conditions per place. [2024-10-31 22:07:07,235 INFO L82 GeneralOperation]: Start removeDead. Operand has 334 places, 324 transitions, 664 flow [2024-10-31 22:07:07,253 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 320 transitions, 652 flow [2024-10-31 22:07:07,263 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:07:07,273 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c78ec0d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:07:07,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 357 error locations. [2024-10-31 22:07:07,289 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:07:07,290 INFO L124 PetriNetUnfolderBase]: 0/44 cut-off events. [2024-10-31 22:07:07,290 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:07,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:07,291 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:07,292 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 353 more)] === [2024-10-31 22:07:07,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1548557212, now seen corresponding path program 1 times [2024-10-31 22:07:07,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:07,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364005455] [2024-10-31 22:07:07,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:07,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:07,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:07,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:07,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:07,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364005455] [2024-10-31 22:07:07,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364005455] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:07,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:07,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:07:07,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754488443] [2024-10-31 22:07:07,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:07,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:07:07,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:07,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:07:07,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:07:07,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 324 [2024-10-31 22:07:07,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 320 transitions, 652 flow. Second operand has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:07,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:07,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 324 [2024-10-31 22:07:07,636 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:14,963 INFO L124 PetriNetUnfolderBase]: 3756/11050 cut-off events. [2024-10-31 22:07:14,964 INFO L125 PetriNetUnfolderBase]: For 85/85 co-relation queries the response was YES. [2024-10-31 22:07:15,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16346 conditions, 11050 events. 3756/11050 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 459. Compared 122224 event pairs, 3756 based on Foata normal form. 916/11187 useless extension candidates. Maximal degree in co-relation 16295. Up to 5121 conditions per place. [2024-10-31 22:07:15,104 INFO L140 encePairwiseOnDemand]: 128/324 looper letters, 20 selfloop transitions, 0 changer transitions 0/122 dead transitions. [2024-10-31 22:07:15,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 122 transitions, 296 flow [2024-10-31 22:07:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:07:15,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:07:15,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 430 transitions. [2024-10-31 22:07:15,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6635802469135802 [2024-10-31 22:07:15,131 INFO L175 Difference]: Start difference. First operand has 330 places, 320 transitions, 652 flow. Second operand 2 states and 430 transitions. [2024-10-31 22:07:15,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 122 transitions, 296 flow [2024-10-31 22:07:15,136 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 122 transitions, 292 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-31 22:07:15,140 INFO L231 Difference]: Finished difference. Result has 132 places, 122 transitions, 252 flow [2024-10-31 22:07:15,143 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=252, PETRI_PLACES=132, PETRI_TRANSITIONS=122} [2024-10-31 22:07:15,150 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, -198 predicate places. [2024-10-31 22:07:15,151 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 122 transitions, 252 flow [2024-10-31 22:07:15,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 108.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:15,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:15,152 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:15,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:07:15,153 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 353 more)] === [2024-10-31 22:07:15,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:15,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1623452727, now seen corresponding path program 1 times [2024-10-31 22:07:15,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:15,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787111685] [2024-10-31 22:07:15,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:15,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:15,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:15,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:15,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787111685] [2024-10-31 22:07:15,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787111685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:15,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:15,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086034429] [2024-10-31 22:07:15,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:15,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:15,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:15,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:15,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:15,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 324 [2024-10-31 22:07:15,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 122 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:15,597 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:15,597 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 324 [2024-10-31 22:07:15,597 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:07:23,752 INFO L124 PetriNetUnfolderBase]: 5708/15681 cut-off events. [2024-10-31 22:07:23,752 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:07:23,821 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23566 conditions, 15681 events. 5708/15681 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 466. Compared 170034 event pairs, 1804 based on Foata normal form. 0/14683 useless extension candidates. Maximal degree in co-relation 23563. Up to 5184 conditions per place. [2024-10-31 22:07:23,884 INFO L140 encePairwiseOnDemand]: 322/324 looper letters, 34 selfloop transitions, 1 changer transitions 0/134 dead transitions. [2024-10-31 22:07:23,884 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 134 transitions, 346 flow [2024-10-31 22:07:23,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:07:23,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:07:23,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-10-31 22:07:23,888 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35802469135802467 [2024-10-31 22:07:23,888 INFO L175 Difference]: Start difference. First operand has 132 places, 122 transitions, 252 flow. Second operand 3 states and 348 transitions. [2024-10-31 22:07:23,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 134 transitions, 346 flow [2024-10-31 22:07:23,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 134 transitions, 346 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:07:23,892 INFO L231 Difference]: Finished difference. Result has 133 places, 121 transitions, 252 flow [2024-10-31 22:07:23,893 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=324, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=252, PETRI_PLACES=133, PETRI_TRANSITIONS=121} [2024-10-31 22:07:23,894 INFO L277 CegarLoopForPetriNet]: 330 programPoint places, -197 predicate places. [2024-10-31 22:07:23,894 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 121 transitions, 252 flow [2024-10-31 22:07:23,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:23,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:07:23,895 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:07:23,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:07:23,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 353 more)] === [2024-10-31 22:07:23,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:07:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash 382629108, now seen corresponding path program 1 times [2024-10-31 22:07:23,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:07:23,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214137193] [2024-10-31 22:07:23,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:07:23,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:07:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:07:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:07:24,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:07:24,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214137193] [2024-10-31 22:07:24,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214137193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:07:24,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:07:24,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:07:24,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519956735] [2024-10-31 22:07:24,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:07:24,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:07:24,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:07:24,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:07:24,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:07:24,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 104 out of 324 [2024-10-31 22:07:24,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 121 transitions, 252 flow. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:07:24,136 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:07:24,136 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 104 of 324 [2024-10-31 22:07:24,136 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand