./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/barrier_2t.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version a0165632 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_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/barrier_2t.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX --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 f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:01:04,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:01:04,227 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-08 17:01:04,238 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:01:04,239 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:01:04,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:01:04,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:01:04,298 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:01:04,299 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:01:04,299 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:01:04,300 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:01:04,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:01:04,303 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:01:04,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:01:04,309 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:01:04,310 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:01:04,310 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:01:04,311 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:01:04,311 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:01:04,311 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:01:04,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:01:04,313 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:01:04,313 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-08 17:01:04,313 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:01:04,315 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:01:04,316 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:01:04,316 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:01:04,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:01:04,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:01:04,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:01:04,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:01:04,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:01:04,319 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:01:04,319 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:01:04,319 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:01:04,320 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:01:04,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:01:04,320 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:01:04,320 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:01:04,322 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:01:04,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:01:04,323 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_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f16bd48636db1837ea8e0ca595ad8610f40d584c5526c4d4feced86ef6fdf308 [2024-11-08 17:01:04,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:01:04,698 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:01:04,702 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:01:04,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:01:04,704 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:01:04,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/pthread-divine/barrier_2t.i Unable to find full path for "g++" [2024-11-08 17:01:07,285 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:01:07,573 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:01:07,574 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/sv-benchmarks/c/pthread-divine/barrier_2t.i [2024-11-08 17:01:07,594 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/data/09f0b45de/66482c7427d74a50b053b243249c02a6/FLAG518402543 [2024-11-08 17:01:07,618 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/data/09f0b45de/66482c7427d74a50b053b243249c02a6 [2024-11-08 17:01:07,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:01:07,624 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:01:07,625 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:01:07,626 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:01:07,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:01:07,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:01:07" (1/1) ... [2024-11-08 17:01:07,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12b308e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:07, skipping insertion in model container [2024-11-08 17:01:07,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:01:07" (1/1) ... [2024-11-08 17:01:07,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:01:08,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:01:08,332 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:01:08,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:01:08,545 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:01:08,545 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08 WrapperNode [2024-11-08 17:01:08,546 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:01:08,547 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:01:08,547 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:01:08,548 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:01:08,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,688 INFO L138 Inliner]: procedures = 174, calls = 94, calls flagged for inlining = 19, calls inlined = 31, statements flattened = 1034 [2024-11-08 17:01:08,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:01:08,690 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:01:08,690 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:01:08,691 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:01:08,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,740 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,745 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,928 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,938 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:01:08,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:01:08,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:01:08,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:01:08,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (1/1) ... [2024-11-08 17:01:08,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:01:08,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:01:09,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:01:09,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3b8e7dc-05d5-47f5-b425-ea4260db08bf/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:01:09,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-08 17:01:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-08 17:01:09,074 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-08 17:01:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure worker_fn [2024-11-08 17:01:09,075 INFO L138 BoogieDeclarations]: Found implementation of procedure worker_fn [2024-11-08 17:01:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:01:09,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-08 17:01:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:01:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-08 17:01:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:01:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 17:01:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-08 17:01:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:01:09,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:01:09,083 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-08 17:01:09,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:01:09,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:01:11,408 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-08 17:01:11,408 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:01:11,520 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:01:11,521 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 17:01:11,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:01:11 BoogieIcfgContainer [2024-11-08 17:01:11,521 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:01:11,524 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:01:11,524 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:01:11,528 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:01:11,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:01:07" (1/3) ... [2024-11-08 17:01:11,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa2adb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:01:11, skipping insertion in model container [2024-11-08 17:01:11,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:01:08" (2/3) ... [2024-11-08 17:01:11,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2aa2adb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:01:11, skipping insertion in model container [2024-11-08 17:01:11,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:01:11" (3/3) ... [2024-11-08 17:01:11,532 INFO L112 eAbstractionObserver]: Analyzing ICFG barrier_2t.i [2024-11-08 17:01:11,557 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:01:11,558 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2024-11-08 17:01:11,558 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-08 17:01:11,921 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-08 17:01:12,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1127 places, 1217 transitions, 2441 flow [2024-11-08 17:01:13,472 INFO L124 PetriNetUnfolderBase]: 141/1802 cut-off events. [2024-11-08 17:01:13,473 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-08 17:01:13,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1807 conditions, 1802 events. 141/1802 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 7165 event pairs, 0 based on Foata normal form. 0/1511 useless extension candidates. Maximal degree in co-relation 1095. Up to 4 conditions per place. [2024-11-08 17:01:13,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 1127 places, 1217 transitions, 2441 flow [2024-11-08 17:01:13,693 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1127 places, 1217 transitions, 2441 flow [2024-11-08 17:01:13,712 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:01:13,721 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;@55b47bf6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:01:13,722 INFO L334 AbstractCegarLoop]: Starting to check reachability of 144 error locations. [2024-11-08 17:01:13,733 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-08 17:01:13,733 INFO L124 PetriNetUnfolderBase]: 3/56 cut-off events. [2024-11-08 17:01:13,734 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-08 17:01:13,734 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:13,735 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] [2024-11-08 17:01:13,736 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-08 17:01:13,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:13,743 INFO L85 PathProgramCache]: Analyzing trace with hash -814935369, now seen corresponding path program 1 times [2024-11-08 17:01:13,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:13,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374499284] [2024-11-08 17:01:13,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:01:15,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:15,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374499284] [2024-11-08 17:01:15,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374499284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:15,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:15,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:01:15,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597344271] [2024-11-08 17:01:15,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:15,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:01:15,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:15,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:01:15,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:01:18,046 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 881 out of 1217 [2024-11-08 17:01:18,066 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1127 places, 1217 transitions, 2441 flow. Second operand has 6 states, 6 states have (on average 882.5) internal successors, (5295), 6 states have internal predecessors, (5295), 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) [2024-11-08 17:01:18,066 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:18,066 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 881 of 1217 [2024-11-08 17:01:18,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:01:42,489 INFO L124 PetriNetUnfolderBase]: 19413/87972 cut-off events. [2024-11-08 17:01:42,490 INFO L125 PetriNetUnfolderBase]: For 4/7 co-relation queries the response was YES. [2024-11-08 17:01:42,688 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121286 conditions, 87972 events. 19413/87972 cut-off events. For 4/7 co-relation queries the response was YES. Maximal size of possible extension queue 493. Compared 1073215 event pairs, 16093 based on Foata normal form. 7011/83681 useless extension candidates. Maximal degree in co-relation 120457. Up to 33304 conditions per place. [2024-11-08 17:01:42,990 INFO L140 encePairwiseOnDemand]: 1157/1217 looper letters, 276 selfloop transitions, 5 changer transitions 3/1139 dead transitions. [2024-11-08 17:01:42,991 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1108 places, 1139 transitions, 2847 flow [2024-11-08 17:01:42,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:01:42,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-08 17:01:43,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5622 transitions. [2024-11-08 17:01:43,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7699260476581758 [2024-11-08 17:01:43,031 INFO L175 Difference]: Start difference. First operand has 1127 places, 1217 transitions, 2441 flow. Second operand 6 states and 5622 transitions. [2024-11-08 17:01:43,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1108 places, 1139 transitions, 2847 flow [2024-11-08 17:01:43,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1108 places, 1139 transitions, 2847 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-08 17:01:43,071 INFO L231 Difference]: Finished difference. Result has 1108 places, 1136 transitions, 2289 flow [2024-11-08 17:01:43,075 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=2285, PETRI_DIFFERENCE_MINUEND_PLACES=1103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2289, PETRI_PLACES=1108, PETRI_TRANSITIONS=1136} [2024-11-08 17:01:43,078 INFO L277 CegarLoopForPetriNet]: 1127 programPoint places, -19 predicate places. [2024-11-08 17:01:43,079 INFO L471 AbstractCegarLoop]: Abstraction has has 1108 places, 1136 transitions, 2289 flow [2024-11-08 17:01:43,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 882.5) internal successors, (5295), 6 states have internal predecessors, (5295), 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) [2024-11-08 17:01:43,084 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:43,084 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] [2024-11-08 17:01:43,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:01:43,086 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-08 17:01:43,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:43,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1935875583, now seen corresponding path program 1 times [2024-11-08 17:01:43,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:43,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340611758] [2024-11-08 17:01:43,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:43,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:43,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:01:43,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:43,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340611758] [2024-11-08 17:01:43,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340611758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:43,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:43,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:01:43,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702313925] [2024-11-08 17:01:43,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:43,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:01:43,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:43,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:01:43,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:01:43,244 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 1126 out of 1217 [2024-11-08 17:01:43,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1108 places, 1136 transitions, 2289 flow. Second operand has 3 states, 3 states have (on average 1127.3333333333333) internal successors, (3382), 3 states have internal predecessors, (3382), 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) [2024-11-08 17:01:43,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:43,250 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1126 of 1217 [2024-11-08 17:01:43,250 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-08 17:01:46,757 INFO L124 PetriNetUnfolderBase]: 615/10017 cut-off events. [2024-11-08 17:01:46,757 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-08 17:01:46,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10643 conditions, 10017 events. 615/10017 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 91274 event pairs, 210 based on Foata normal form. 2/8555 useless extension candidates. Maximal degree in co-relation 10558. Up to 609 conditions per place. [2024-11-08 17:01:46,899 INFO L140 encePairwiseOnDemand]: 1213/1217 looper letters, 36 selfloop transitions, 2 changer transitions 0/1137 dead transitions. [2024-11-08 17:01:46,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1107 places, 1137 transitions, 2367 flow [2024-11-08 17:01:46,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:01:46,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-08 17:01:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3418 transitions. [2024-11-08 17:01:46,910 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9361818679813749 [2024-11-08 17:01:46,911 INFO L175 Difference]: Start difference. First operand has 1108 places, 1136 transitions, 2289 flow. Second operand 3 states and 3418 transitions. [2024-11-08 17:01:46,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1107 places, 1137 transitions, 2367 flow [2024-11-08 17:01:46,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1102 places, 1137 transitions, 2357 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-08 17:01:46,943 INFO L231 Difference]: Finished difference. Result has 1103 places, 1137 transitions, 2293 flow [2024-11-08 17:01:46,946 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=1217, PETRI_DIFFERENCE_MINUEND_FLOW=2279, PETRI_DIFFERENCE_MINUEND_PLACES=1100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2293, PETRI_PLACES=1103, PETRI_TRANSITIONS=1137} [2024-11-08 17:01:46,947 INFO L277 CegarLoopForPetriNet]: 1127 programPoint places, -24 predicate places. [2024-11-08 17:01:46,948 INFO L471 AbstractCegarLoop]: Abstraction has has 1103 places, 1137 transitions, 2293 flow [2024-11-08 17:01:46,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1127.3333333333333) internal successors, (3382), 3 states have internal predecessors, (3382), 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) [2024-11-08 17:01:46,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-08 17:01:46,951 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] [2024-11-08 17:01:46,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:01:46,952 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 141 more)] === [2024-11-08 17:01:46,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:01:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1582822693, now seen corresponding path program 1 times [2024-11-08 17:01:46,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:01:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862096537] [2024-11-08 17:01:46,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:01:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:01:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:01:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:01:47,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:01:47,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862096537] [2024-11-08 17:01:47,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862096537] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:01:47,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:01:47,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:01:47,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136385241] [2024-11-08 17:01:47,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:01:47,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 17:01:47,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:01:47,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 17:01:47,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:01:49,795 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 881 out of 1217 [2024-11-08 17:01:49,802 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1103 places, 1137 transitions, 2293 flow. Second operand has 6 states, 6 states have (on average 882.5) internal successors, (5295), 6 states have internal predecessors, (5295), 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) [2024-11-08 17:01:49,802 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-08 17:01:49,802 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 881 of 1217 [2024-11-08 17:01:49,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand