./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd --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 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:22:11,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:22:11,773 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 14:22:11,781 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:22:11,781 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:22:11,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:22:11,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:22:11,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:22:11,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:22:11,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:22:11,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:22:11,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:22:11,824 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:22:11,824 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:22:11,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:22:11,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:22:11,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:22:11,824 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:22:11,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:22:11,826 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:22:11,827 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:22:11,827 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:22:11,827 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:22:11,827 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:22:11,827 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:22:11,827 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:22:11,827 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:22:11,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd 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 -> 6ac894f5c6207d1329786eb676509b79ca36f8c33f880cc59ffa30652ab92765 [2024-11-13 14:22:12,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:22:12,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:22:12,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:22:12,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:22:12,247 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:22:12,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i Unable to find full path for "g++" [2024-11-13 14:22:14,296 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:22:14,767 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:22:14,771 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/sv-benchmarks/c/goblint-regression/28-race_reach_82-list_racefree.i [2024-11-13 14:22:14,801 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/data/0ceff2656/a04c0e62316440cabb396abdbefac305/FLAGdd2875b6a [2024-11-13 14:22:14,830 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/data/0ceff2656/a04c0e62316440cabb396abdbefac305 [2024-11-13 14:22:14,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:22:14,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:22:14,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:14,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:22:14,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:22:14,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:14" (1/1) ... [2024-11-13 14:22:14,847 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec518a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:14, skipping insertion in model container [2024-11-13 14:22:14,848 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:22:14" (1/1) ... [2024-11-13 14:22:14,908 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:22:15,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:15,639 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:22:15,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:22:15,807 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:22:15,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15 WrapperNode [2024-11-13 14:22:15,808 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:22:15,809 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:15,809 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:22:15,809 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:22:15,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,876 INFO L138 Inliner]: procedures = 280, calls = 77, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 341 [2024-11-13 14:22:15,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:22:15,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:22:15,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:22:15,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:22:15,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,894 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,894 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,926 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,928 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:22:15,940 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:22:15,940 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:22:15,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:22:15,945 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (1/1) ... [2024-11-13 14:22:15,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:22:15,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:22:16,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:22:16,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_684ea63f-56cf-44d7-b91a-d3183d32e623/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:22:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 14:22:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-13 14:22:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-13 14:22:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-13 14:22:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 14:22:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-13 14:22:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:22:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-13 14:22:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 14:22:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:22:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:22:16,048 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 14:22:16,262 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:22:16,263 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:22:17,109 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 14:22:17,109 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:22:17,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:22:17,166 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-13 14:22:17,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:17 BoogieIcfgContainer [2024-11-13 14:22:17,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:22:17,169 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:22:17,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:22:17,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:22:17,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:22:14" (1/3) ... [2024-11-13 14:22:17,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbc5f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:22:17, skipping insertion in model container [2024-11-13 14:22:17,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:22:15" (2/3) ... [2024-11-13 14:22:17,178 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cbc5f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:22:17, skipping insertion in model container [2024-11-13 14:22:17,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:22:17" (3/3) ... [2024-11-13 14:22:17,179 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_82-list_racefree.i [2024-11-13 14:22:17,195 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:22:17,197 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_82-list_racefree.i that has 3 procedures, 349 locations, 1 initial locations, 10 loop locations, and 22 error locations. [2024-11-13 14:22:17,197 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 14:22:17,368 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-13 14:22:17,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 355 places, 374 transitions, 768 flow [2024-11-13 14:22:17,797 INFO L124 PetriNetUnfolderBase]: 54/697 cut-off events. [2024-11-13 14:22:17,799 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-13 14:22:17,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 697 events. 54/697 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 3130 event pairs, 0 based on Foata normal form. 0/595 useless extension candidates. Maximal degree in co-relation 348. Up to 8 conditions per place. [2024-11-13 14:22:17,823 INFO L82 GeneralOperation]: Start removeDead. Operand has 355 places, 374 transitions, 768 flow [2024-11-13 14:22:17,835 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 355 places, 374 transitions, 768 flow [2024-11-13 14:22:17,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:22:17,864 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;@6cf78f74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:22:17,865 INFO L334 AbstractCegarLoop]: Starting to check reachability of 38 error locations. [2024-11-13 14:22:17,879 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:22:17,879 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-13 14:22:17,879 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:22:17,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:17,880 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] [2024-11-13 14:22:17,881 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:17,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:17,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1547367608, now seen corresponding path program 1 times [2024-11-13 14:22:17,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:17,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922904704] [2024-11-13 14:22:17,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:17,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:18,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:18,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:18,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:18,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922904704] [2024-11-13 14:22:18,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922904704] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:18,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:18,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:22:18,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416323836] [2024-11-13 14:22:18,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:18,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:22:18,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:18,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:22:18,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:22:18,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 374 [2024-11-13 14:22:18,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 355 places, 374 transitions, 768 flow. Second operand has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 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) [2024-11-13 14:22:18,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:18,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 374 [2024-11-13 14:22:18,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:22:19,109 INFO L124 PetriNetUnfolderBase]: 210/2393 cut-off events. [2024-11-13 14:22:19,110 INFO L125 PetriNetUnfolderBase]: For 120/120 co-relation queries the response was YES. [2024-11-13 14:22:19,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2781 conditions, 2393 events. 210/2393 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 18202 event pairs, 158 based on Foata normal form. 306/2468 useless extension candidates. Maximal degree in co-relation 1884. Up to 333 conditions per place. [2024-11-13 14:22:19,135 INFO L140 encePairwiseOnDemand]: 354/374 looper letters, 25 selfloop transitions, 2 changer transitions 0/354 dead transitions. [2024-11-13 14:22:19,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 354 places, 354 transitions, 782 flow [2024-11-13 14:22:19,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:22:19,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:22:19,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1029 transitions. [2024-11-13 14:22:19,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9171122994652406 [2024-11-13 14:22:19,162 INFO L175 Difference]: Start difference. First operand has 355 places, 374 transitions, 768 flow. Second operand 3 states and 1029 transitions. [2024-11-13 14:22:19,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 354 places, 354 transitions, 782 flow [2024-11-13 14:22:19,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 354 transitions, 782 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:22:19,186 INFO L231 Difference]: Finished difference. Result has 354 places, 354 transitions, 732 flow [2024-11-13 14:22:19,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=728, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=732, PETRI_PLACES=354, PETRI_TRANSITIONS=354} [2024-11-13 14:22:19,194 INFO L277 CegarLoopForPetriNet]: 355 programPoint places, -1 predicate places. [2024-11-13 14:22:19,197 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 354 transitions, 732 flow [2024-11-13 14:22:19,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.3333333333333) internal successors, (988), 3 states have internal predecessors, (988), 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) [2024-11-13 14:22:19,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:19,198 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] [2024-11-13 14:22:19,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:22:19,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:19,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:19,199 INFO L85 PathProgramCache]: Analyzing trace with hash 690152691, now seen corresponding path program 1 times [2024-11-13 14:22:19,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:19,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229217798] [2024-11-13 14:22:19,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:19,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:19,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:19,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:19,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:19,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229217798] [2024-11-13 14:22:19,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229217798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:19,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:19,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:22:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986563527] [2024-11-13 14:22:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:19,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:22:19,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:19,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:22:19,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:22:19,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 328 out of 374 [2024-11-13 14:22:19,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 354 transitions, 732 flow. Second operand has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 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) [2024-11-13 14:22:19,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:19,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 328 of 374 [2024-11-13 14:22:19,412 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:22:20,051 INFO L124 PetriNetUnfolderBase]: 118/1997 cut-off events. [2024-11-13 14:22:20,052 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-13 14:22:20,062 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2276 conditions, 1997 events. 118/1997 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 12979 event pairs, 84 based on Foata normal form. 0/1805 useless extension candidates. Maximal degree in co-relation 2222. Up to 213 conditions per place. [2024-11-13 14:22:20,072 INFO L140 encePairwiseOnDemand]: 370/374 looper letters, 24 selfloop transitions, 1 changer transitions 0/351 dead transitions. [2024-11-13 14:22:20,072 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 351 transitions, 776 flow [2024-11-13 14:22:20,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:22:20,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:22:20,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1012 transitions. [2024-11-13 14:22:20,075 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9019607843137255 [2024-11-13 14:22:20,076 INFO L175 Difference]: Start difference. First operand has 354 places, 354 transitions, 732 flow. Second operand 3 states and 1012 transitions. [2024-11-13 14:22:20,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 351 transitions, 776 flow [2024-11-13 14:22:20,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 351 places, 351 transitions, 772 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 14:22:20,090 INFO L231 Difference]: Finished difference. Result has 351 places, 351 transitions, 724 flow [2024-11-13 14:22:20,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=722, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=724, PETRI_PLACES=351, PETRI_TRANSITIONS=351} [2024-11-13 14:22:20,092 INFO L277 CegarLoopForPetriNet]: 355 programPoint places, -4 predicate places. [2024-11-13 14:22:20,092 INFO L471 AbstractCegarLoop]: Abstraction has has 351 places, 351 transitions, 724 flow [2024-11-13 14:22:20,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 329.0) internal successors, (987), 3 states have internal predecessors, (987), 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) [2024-11-13 14:22:20,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:20,093 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] [2024-11-13 14:22:20,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 14:22:20,093 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:20,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:20,096 INFO L85 PathProgramCache]: Analyzing trace with hash 2092561467, now seen corresponding path program 1 times [2024-11-13 14:22:20,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:20,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488545980] [2024-11-13 14:22:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:20,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:20,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:20,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:20,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488545980] [2024-11-13 14:22:20,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488545980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:20,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:20,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:22:20,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650695550] [2024-11-13 14:22:20,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:20,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:22:20,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:20,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:22:20,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:22:21,541 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 374 [2024-11-13 14:22:21,543 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 351 transitions, 724 flow. Second operand has 6 states, 6 states have (on average 264.3333333333333) internal successors, (1586), 6 states have internal predecessors, (1586), 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) [2024-11-13 14:22:21,543 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:21,544 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 374 [2024-11-13 14:22:21,544 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:22:32,483 INFO L124 PetriNetUnfolderBase]: 23473/62620 cut-off events. [2024-11-13 14:22:32,483 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-13 14:22:32,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98513 conditions, 62620 events. 23473/62620 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 734922 event pairs, 22570 based on Foata normal form. 0/58361 useless extension candidates. Maximal degree in co-relation 98460. Up to 35705 conditions per place. [2024-11-13 14:22:32,848 INFO L140 encePairwiseOnDemand]: 368/374 looper letters, 87 selfloop transitions, 5 changer transitions 0/350 dead transitions. [2024-11-13 14:22:32,848 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 350 transitions, 906 flow [2024-11-13 14:22:32,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:22:32,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:22:32,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1671 transitions. [2024-11-13 14:22:32,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7446524064171123 [2024-11-13 14:22:32,858 INFO L175 Difference]: Start difference. First operand has 351 places, 351 transitions, 724 flow. Second operand 6 states and 1671 transitions. [2024-11-13 14:22:32,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 350 transitions, 906 flow [2024-11-13 14:22:32,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 350 transitions, 905 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 14:22:32,879 INFO L231 Difference]: Finished difference. Result has 354 places, 350 transitions, 731 flow [2024-11-13 14:22:32,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=721, PETRI_DIFFERENCE_MINUEND_PLACES=349, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=345, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=731, PETRI_PLACES=354, PETRI_TRANSITIONS=350} [2024-11-13 14:22:32,881 INFO L277 CegarLoopForPetriNet]: 355 programPoint places, -1 predicate places. [2024-11-13 14:22:32,882 INFO L471 AbstractCegarLoop]: Abstraction has has 354 places, 350 transitions, 731 flow [2024-11-13 14:22:32,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.3333333333333) internal successors, (1586), 6 states have internal predecessors, (1586), 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) [2024-11-13 14:22:32,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:32,884 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] [2024-11-13 14:22:32,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 14:22:32,885 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:32,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:32,886 INFO L85 PathProgramCache]: Analyzing trace with hash 797830567, now seen corresponding path program 1 times [2024-11-13 14:22:32,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:32,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599005346] [2024-11-13 14:22:32,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:32,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:33,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:33,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:33,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599005346] [2024-11-13 14:22:33,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599005346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:33,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:33,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:22:33,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469326338] [2024-11-13 14:22:33,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:33,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:22:33,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:33,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:22:33,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:22:34,107 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 374 [2024-11-13 14:22:34,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 350 transitions, 731 flow. Second operand has 6 states, 6 states have (on average 264.3333333333333) internal successors, (1586), 6 states have internal predecessors, (1586), 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) [2024-11-13 14:22:34,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:34,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 374 [2024-11-13 14:22:34,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:22:42,929 INFO L124 PetriNetUnfolderBase]: 23473/62619 cut-off events. [2024-11-13 14:22:42,929 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-13 14:22:43,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 98517 conditions, 62619 events. 23473/62619 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1084. Compared 734755 event pairs, 22570 based on Foata normal form. 0/58361 useless extension candidates. Maximal degree in co-relation 98464. Up to 35705 conditions per place. [2024-11-13 14:22:43,350 INFO L140 encePairwiseOnDemand]: 368/374 looper letters, 87 selfloop transitions, 5 changer transitions 0/349 dead transitions. [2024-11-13 14:22:43,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 349 transitions, 913 flow [2024-11-13 14:22:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:22:43,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:22:43,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1671 transitions. [2024-11-13 14:22:43,357 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7446524064171123 [2024-11-13 14:22:43,358 INFO L175 Difference]: Start difference. First operand has 354 places, 350 transitions, 731 flow. Second operand 6 states and 1671 transitions. [2024-11-13 14:22:43,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 349 transitions, 913 flow [2024-11-13 14:22:43,369 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 349 transitions, 903 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:22:43,375 INFO L231 Difference]: Finished difference. Result has 353 places, 349 transitions, 729 flow [2024-11-13 14:22:43,376 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=729, PETRI_PLACES=353, PETRI_TRANSITIONS=349} [2024-11-13 14:22:43,378 INFO L277 CegarLoopForPetriNet]: 355 programPoint places, -2 predicate places. [2024-11-13 14:22:43,379 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 349 transitions, 729 flow [2024-11-13 14:22:43,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 264.3333333333333) internal successors, (1586), 6 states have internal predecessors, (1586), 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) [2024-11-13 14:22:43,380 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:43,381 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, 1, 1, 1] [2024-11-13 14:22:43,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 14:22:43,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:43,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:43,382 INFO L85 PathProgramCache]: Analyzing trace with hash 130385134, now seen corresponding path program 1 times [2024-11-13 14:22:43,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:43,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430845056] [2024-11-13 14:22:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:43,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:43,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:44,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:44,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430845056] [2024-11-13 14:22:44,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430845056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:44,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:44,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 14:22:44,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932414154] [2024-11-13 14:22:44,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:44,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 14:22:44,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:44,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 14:22:44,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 14:22:44,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 374 [2024-11-13 14:22:44,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 349 transitions, 729 flow. Second operand has 6 states, 6 states have (on average 258.8333333333333) internal successors, (1553), 6 states have internal predecessors, (1553), 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) [2024-11-13 14:22:44,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:44,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 374 [2024-11-13 14:22:44,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:22:54,960 INFO L124 PetriNetUnfolderBase]: 27419/72533 cut-off events. [2024-11-13 14:22:54,960 INFO L125 PetriNetUnfolderBase]: For 409/409 co-relation queries the response was YES. [2024-11-13 14:22:55,093 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114457 conditions, 72533 events. 27419/72533 cut-off events. For 409/409 co-relation queries the response was YES. Maximal size of possible extension queue 1364. Compared 881941 event pairs, 26131 based on Foata normal form. 0/67532 useless extension candidates. Maximal degree in co-relation 114403. Up to 41583 conditions per place. [2024-11-13 14:22:55,368 INFO L140 encePairwiseOnDemand]: 347/374 looper letters, 107 selfloop transitions, 86 changer transitions 0/442 dead transitions. [2024-11-13 14:22:55,369 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 442 transitions, 1301 flow [2024-11-13 14:22:55,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 14:22:55,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 14:22:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1730 transitions. [2024-11-13 14:22:55,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7709447415329769 [2024-11-13 14:22:55,377 INFO L175 Difference]: Start difference. First operand has 353 places, 349 transitions, 729 flow. Second operand 6 states and 1730 transitions. [2024-11-13 14:22:55,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 442 transitions, 1301 flow [2024-11-13 14:22:55,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 442 transitions, 1291 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 14:22:55,404 INFO L231 Difference]: Finished difference. Result has 358 places, 434 transitions, 1285 flow [2024-11-13 14:22:55,405 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=719, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1285, PETRI_PLACES=358, PETRI_TRANSITIONS=434} [2024-11-13 14:22:55,409 INFO L277 CegarLoopForPetriNet]: 355 programPoint places, 3 predicate places. [2024-11-13 14:22:55,410 INFO L471 AbstractCegarLoop]: Abstraction has has 358 places, 434 transitions, 1285 flow [2024-11-13 14:22:55,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 258.8333333333333) internal successors, (1553), 6 states have internal predecessors, (1553), 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) [2024-11-13 14:22:55,411 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:55,412 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:22:55,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 14:22:55,413 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:55,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:55,413 INFO L85 PathProgramCache]: Analyzing trace with hash 2046084170, now seen corresponding path program 1 times [2024-11-13 14:22:55,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:55,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20052342] [2024-11-13 14:22:55,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:55,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:55,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:55,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20052342] [2024-11-13 14:22:55,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20052342] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:55,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:55,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 14:22:55,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177561716] [2024-11-13 14:22:55,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:55,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:22:55,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:55,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:22:55,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:22:55,623 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 332 out of 374 [2024-11-13 14:22:55,625 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 434 transitions, 1285 flow. Second operand has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 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) [2024-11-13 14:22:55,627 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:55,627 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 332 of 374 [2024-11-13 14:22:55,627 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 14:22:56,257 INFO L124 PetriNetUnfolderBase]: 310/2443 cut-off events. [2024-11-13 14:22:56,258 INFO L125 PetriNetUnfolderBase]: For 230/253 co-relation queries the response was YES. [2024-11-13 14:22:56,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3368 conditions, 2443 events. 310/2443 cut-off events. For 230/253 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 17896 event pairs, 114 based on Foata normal form. 1/2249 useless extension candidates. Maximal degree in co-relation 3310. Up to 251 conditions per place. [2024-11-13 14:22:56,278 INFO L140 encePairwiseOnDemand]: 371/374 looper letters, 24 selfloop transitions, 3 changer transitions 0/436 dead transitions. [2024-11-13 14:22:56,279 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 436 transitions, 1343 flow [2024-11-13 14:22:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 14:22:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 14:22:56,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1023 transitions. [2024-11-13 14:22:56,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9117647058823529 [2024-11-13 14:22:56,282 INFO L175 Difference]: Start difference. First operand has 358 places, 434 transitions, 1285 flow. Second operand 3 states and 1023 transitions. [2024-11-13 14:22:56,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 436 transitions, 1343 flow [2024-11-13 14:22:56,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 436 transitions, 1343 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 14:22:56,299 INFO L231 Difference]: Finished difference. Result has 361 places, 434 transitions, 1296 flow [2024-11-13 14:22:56,300 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=374, PETRI_DIFFERENCE_MINUEND_FLOW=1285, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=434, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=431, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1296, PETRI_PLACES=361, PETRI_TRANSITIONS=434} [2024-11-13 14:22:56,302 INFO L277 CegarLoopForPetriNet]: 355 programPoint places, 6 predicate places. [2024-11-13 14:22:56,302 INFO L471 AbstractCegarLoop]: Abstraction has has 361 places, 434 transitions, 1296 flow [2024-11-13 14:22:56,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 333.3333333333333) internal successors, (1000), 3 states have internal predecessors, (1000), 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) [2024-11-13 14:22:56,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:56,304 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 14:22:56,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 14:22:56,304 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 34 more)] === [2024-11-13 14:22:56,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:56,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1324555517, now seen corresponding path program 1 times [2024-11-13 14:22:56,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:56,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912414163] [2024-11-13 14:22:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:56,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:56,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:56,369 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:22:56,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:22:56,458 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:22:56,458 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:22:56,459 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 38 remaining) [2024-11-13 14:22:56,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (36 of 38 remaining) [2024-11-13 14:22:56,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (35 of 38 remaining) [2024-11-13 14:22:56,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (34 of 38 remaining) [2024-11-13 14:22:56,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (33 of 38 remaining) [2024-11-13 14:22:56,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (32 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (31 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (30 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (29 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (28 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (27 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (26 of 38 remaining) [2024-11-13 14:22:56,463 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (25 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (24 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (23 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (22 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (21 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (19 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (18 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (17 of 38 remaining) [2024-11-13 14:22:56,464 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (16 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (15 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (14 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (13 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (12 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (11 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr7ASSERT_VIOLATIONDATA_RACE (10 of 38 remaining) [2024-11-13 14:22:56,465 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (9 of 38 remaining) [2024-11-13 14:22:56,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr5ASSERT_VIOLATIONDATA_RACE (8 of 38 remaining) [2024-11-13 14:22:56,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (7 of 38 remaining) [2024-11-13 14:22:56,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr6ASSERT_VIOLATIONDATA_RACE (6 of 38 remaining) [2024-11-13 14:22:56,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 38 remaining) [2024-11-13 14:22:56,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (4 of 38 remaining) [2024-11-13 14:22:56,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (3 of 38 remaining) [2024-11-13 14:22:56,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (2 of 38 remaining) [2024-11-13 14:22:56,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (1 of 38 remaining) [2024-11-13 14:22:56,468 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 38 remaining) [2024-11-13 14:22:56,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 14:22:56,468 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:22:56,473 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 14:22:56,473 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 14:22:56,673 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-13 14:22:56,686 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 562 places, 597 transitions, 1238 flow [2024-11-13 14:22:57,715 INFO L124 PetriNetUnfolderBase]: 197/1970 cut-off events. [2024-11-13 14:22:57,716 INFO L125 PetriNetUnfolderBase]: For 72/90 co-relation queries the response was YES. [2024-11-13 14:22:57,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2059 conditions, 1970 events. 197/1970 cut-off events. For 72/90 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 13390 event pairs, 1 based on Foata normal form. 0/1664 useless extension candidates. Maximal degree in co-relation 1230. Up to 32 conditions per place. [2024-11-13 14:22:57,746 INFO L82 GeneralOperation]: Start removeDead. Operand has 562 places, 597 transitions, 1238 flow [2024-11-13 14:22:57,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 562 places, 597 transitions, 1238 flow [2024-11-13 14:22:57,775 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:22:57,776 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;@6cf78f74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:22:57,777 INFO L334 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2024-11-13 14:22:57,780 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 14:22:57,780 INFO L124 PetriNetUnfolderBase]: 0/43 cut-off events. [2024-11-13 14:22:57,780 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 14:22:57,780 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 14:22:57,781 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] [2024-11-13 14:22:57,781 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr7ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-13 14:22:57,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:22:57,781 INFO L85 PathProgramCache]: Analyzing trace with hash -687558408, now seen corresponding path program 1 times [2024-11-13 14:22:57,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:22:57,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482013833] [2024-11-13 14:22:57,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:22:57,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:22:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:22:57,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:22:57,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 14:22:57,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482013833] [2024-11-13 14:22:57,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482013833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:22:57,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:22:57,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:22:57,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153734814] [2024-11-13 14:22:57,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:22:57,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 14:22:57,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 14:22:57,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 14:22:57,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 14:22:57,875 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 517 out of 597 [2024-11-13 14:22:57,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 562 places, 597 transitions, 1238 flow. Second operand has 3 states, 3 states have (on average 518.3333333333334) internal successors, (1555), 3 states have internal predecessors, (1555), 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) [2024-11-13 14:22:57,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 14:22:57,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 517 of 597 [2024-11-13 14:22:57,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand