./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_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_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/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_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/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_47f1840d-9b40-464e-9a67-d83a884a37a3/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 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:08:20,050 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:08:20,148 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-13 16:08:20,157 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:08:20,158 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:08:20,192 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:08:20,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:08:20,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:08:20,193 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:08:20,193 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:08:20,194 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:08:20,194 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:08:20,194 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:08:20,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:08:20,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:08:20,194 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:08:20,196 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:08:20,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:08:20,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:08:20,198 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:08:20,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:08:20,199 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:08:20,199 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:08:20,199 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:08:20,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:08:20,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:08:20,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:08:20,199 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:08:20,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:08:20,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:08:20,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:08:20,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:08:20,200 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:08:20,200 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:08:20,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:08:20,201 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_47f1840d-9b40-464e-9a67-d83a884a37a3/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 -> 3eff698bae51c39e8a3a4c763800dbda831dabb73a169fa31c8e326faee47cd8 [2024-11-13 16:08:20,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:08:20,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:08:20,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:08:20,576 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:08:20,577 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:08:20,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i Unable to find full path for "g++" [2024-11-13 16:08:22,651 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:08:23,143 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:08:23,144 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/sv-benchmarks/c/goblint-regression/28-race_reach_36-indirect_racefree.i [2024-11-13 16:08:23,164 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/data/cf2e9651b/885419009fad4734abea031f33436d53/FLAG74ea953d3 [2024-11-13 16:08:23,184 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/data/cf2e9651b/885419009fad4734abea031f33436d53 [2024-11-13 16:08:23,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:08:23,191 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:08:23,193 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:08:23,193 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:08:23,199 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:08:23,200 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,201 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@426766a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23, skipping insertion in model container [2024-11-13 16:08:23,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:08:23,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:08:23,792 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:08:23,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:08:23,899 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:08:23,899 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23 WrapperNode [2024-11-13 16:08:23,900 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:08:23,901 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:08:23,901 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:08:23,901 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:08:23,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,957 INFO L138 Inliner]: procedures = 174, calls = 49, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 117 [2024-11-13 16:08:23,957 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:08:23,958 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:08:23,958 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:08:23,958 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:08:23,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,990 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,997 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:23,998 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:24,002 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:08:24,003 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:08:24,003 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:08:24,003 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:08:24,004 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (1/1) ... [2024-11-13 16:08:24,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:08:24,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:08:24,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:08:24,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:08:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 16:08:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 16:08:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-13 16:08:24,101 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-13 16:08:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-13 16:08:24,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:08:24,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:08:24,104 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 16:08:24,266 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:08:24,269 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:08:24,762 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 16:08:24,763 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:08:24,823 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:08:24,823 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-13 16:08:24,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:08:24 BoogieIcfgContainer [2024-11-13 16:08:24,823 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:08:24,828 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:08:24,828 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:08:24,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:08:24,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:08:23" (1/3) ... [2024-11-13 16:08:24,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7682f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:08:24, skipping insertion in model container [2024-11-13 16:08:24,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:08:23" (2/3) ... [2024-11-13 16:08:24,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7682f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:08:24, skipping insertion in model container [2024-11-13 16:08:24,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:08:24" (3/3) ... [2024-11-13 16:08:24,840 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_36-indirect_racefree.i [2024-11-13 16:08:24,859 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:08:24,862 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_36-indirect_racefree.i that has 2 procedures, 182 locations, 1 initial locations, 6 loop locations, and 13 error locations. [2024-11-13 16:08:24,863 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 16:08:25,014 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-13 16:08:25,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 185 places, 195 transitions, 397 flow [2024-11-13 16:08:25,226 INFO L124 PetriNetUnfolderBase]: 19/262 cut-off events. [2024-11-13 16:08:25,231 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-13 16:08:25,242 INFO L83 FinitePrefix]: Finished finitePrefix Result has 267 conditions, 262 events. 19/262 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 785 event pairs, 0 based on Foata normal form. 0/223 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2024-11-13 16:08:25,242 INFO L82 GeneralOperation]: Start removeDead. Operand has 185 places, 195 transitions, 397 flow [2024-11-13 16:08:25,250 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 185 places, 195 transitions, 397 flow [2024-11-13 16:08:25,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:08:25,281 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;@47d62b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:08:25,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-13 16:08:25,296 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:08:25,296 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-11-13 16:08:25,297 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:08:25,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:25,297 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] [2024-11-13 16:08:25,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:25,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:25,303 INFO L85 PathProgramCache]: Analyzing trace with hash -458116144, now seen corresponding path program 1 times [2024-11-13 16:08:25,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:25,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578174673] [2024-11-13 16:08:25,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:25,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:25,623 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 16:08:25,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:25,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578174673] [2024-11-13 16:08:25,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578174673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:25,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:25,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:25,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443644422] [2024-11-13 16:08:25,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:25,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:25,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:25,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:25,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:25,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 195 [2024-11-13 16:08:25,716 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 195 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 16:08:25,717 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:25,717 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 195 [2024-11-13 16:08:25,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:25,968 INFO L124 PetriNetUnfolderBase]: 37/647 cut-off events. [2024-11-13 16:08:25,968 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 16:08:25,971 INFO L83 FinitePrefix]: Finished finitePrefix Result has 751 conditions, 647 events. 37/647 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2880 event pairs, 36 based on Foata normal form. 62/645 useless extension candidates. Maximal degree in co-relation 617. Up to 97 conditions per place. [2024-11-13 16:08:25,978 INFO L140 encePairwiseOnDemand]: 180/195 looper letters, 18 selfloop transitions, 2 changer transitions 0/180 dead transitions. [2024-11-13 16:08:25,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 180 transitions, 407 flow [2024-11-13 16:08:25,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:25,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:25,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 516 transitions. [2024-11-13 16:08:26,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.882051282051282 [2024-11-13 16:08:26,006 INFO L175 Difference]: Start difference. First operand has 185 places, 195 transitions, 397 flow. Second operand 3 states and 516 transitions. [2024-11-13 16:08:26,007 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 180 transitions, 407 flow [2024-11-13 16:08:26,015 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 180 transitions, 407 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:08:26,020 INFO L231 Difference]: Finished difference. Result has 184 places, 180 transitions, 371 flow [2024-11-13 16:08:26,022 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=371, PETRI_PLACES=184, PETRI_TRANSITIONS=180} [2024-11-13 16:08:26,027 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, -1 predicate places. [2024-11-13 16:08:26,027 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 180 transitions, 371 flow [2024-11-13 16:08:26,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 16:08:26,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:26,028 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] [2024-11-13 16:08:26,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:08:26,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:26,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:26,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2132032309, now seen corresponding path program 1 times [2024-11-13 16:08:26,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:26,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567488028] [2024-11-13 16:08:26,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:26,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:26,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:26,165 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 16:08:26,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:26,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567488028] [2024-11-13 16:08:26,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567488028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:26,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:26,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:26,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936923310] [2024-11-13 16:08:26,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:26,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:26,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:26,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:26,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:26,207 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 195 [2024-11-13 16:08:26,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 180 transitions, 371 flow. Second operand has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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 16:08:26,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:26,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 195 [2024-11-13 16:08:26,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:26,395 INFO L124 PetriNetUnfolderBase]: 37/644 cut-off events. [2024-11-13 16:08:26,395 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 16:08:26,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 748 conditions, 644 events. 37/644 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 2909 event pairs, 36 based on Foata normal form. 0/585 useless extension candidates. Maximal degree in co-relation 702. Up to 94 conditions per place. [2024-11-13 16:08:26,402 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 16 selfloop transitions, 1 changer transitions 0/178 dead transitions. [2024-11-13 16:08:26,402 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 178 transitions, 401 flow [2024-11-13 16:08:26,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:26,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:26,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 508 transitions. [2024-11-13 16:08:26,417 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8683760683760684 [2024-11-13 16:08:26,417 INFO L175 Difference]: Start difference. First operand has 184 places, 180 transitions, 371 flow. Second operand 3 states and 508 transitions. [2024-11-13 16:08:26,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 178 transitions, 401 flow [2024-11-13 16:08:26,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 178 transitions, 397 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:08:26,425 INFO L231 Difference]: Finished difference. Result has 182 places, 178 transitions, 365 flow [2024-11-13 16:08:26,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=365, PETRI_PLACES=182, PETRI_TRANSITIONS=178} [2024-11-13 16:08:26,427 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, -3 predicate places. [2024-11-13 16:08:26,427 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 178 transitions, 365 flow [2024-11-13 16:08:26,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 164.0) internal successors, (492), 3 states have internal predecessors, (492), 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 16:08:26,428 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:26,429 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] [2024-11-13 16:08:26,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:08:26,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:26,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:26,430 INFO L85 PathProgramCache]: Analyzing trace with hash 406765746, now seen corresponding path program 1 times [2024-11-13 16:08:26,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:26,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550272077] [2024-11-13 16:08:26,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:26,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:26,542 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 16:08:26,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:26,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550272077] [2024-11-13 16:08:26,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550272077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:26,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:26,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135594063] [2024-11-13 16:08:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:26,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:26,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:26,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:26,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:26,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 195 [2024-11-13 16:08:26,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 178 transitions, 365 flow. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 16:08:26,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:26,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 195 [2024-11-13 16:08:26,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:26,738 INFO L124 PetriNetUnfolderBase]: 41/585 cut-off events. [2024-11-13 16:08:26,738 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-13 16:08:26,741 INFO L83 FinitePrefix]: Finished finitePrefix Result has 698 conditions, 585 events. 41/585 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2566 event pairs, 40 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 654. Up to 104 conditions per place. [2024-11-13 16:08:26,743 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 18 selfloop transitions, 2 changer transitions 0/177 dead transitions. [2024-11-13 16:08:26,744 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 177 transitions, 403 flow [2024-11-13 16:08:26,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:26,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:26,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2024-11-13 16:08:26,752 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8615384615384616 [2024-11-13 16:08:26,752 INFO L175 Difference]: Start difference. First operand has 182 places, 178 transitions, 365 flow. Second operand 3 states and 504 transitions. [2024-11-13 16:08:26,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 177 transitions, 403 flow [2024-11-13 16:08:26,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 177 transitions, 402 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:08:26,756 INFO L231 Difference]: Finished difference. Result has 182 places, 177 transitions, 366 flow [2024-11-13 16:08:26,757 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=366, PETRI_PLACES=182, PETRI_TRANSITIONS=177} [2024-11-13 16:08:26,758 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, -3 predicate places. [2024-11-13 16:08:26,758 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 177 transitions, 366 flow [2024-11-13 16:08:26,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 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 16:08:26,759 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:26,759 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] [2024-11-13 16:08:26,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:08:26,759 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:26,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:26,760 INFO L85 PathProgramCache]: Analyzing trace with hash 1056866861, now seen corresponding path program 1 times [2024-11-13 16:08:26,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:26,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644795447] [2024-11-13 16:08:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:26,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:27,634 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 16:08:27,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:27,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644795447] [2024-11-13 16:08:27,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644795447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:27,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:27,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:08:27,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189053156] [2024-11-13 16:08:27,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:27,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:08:27,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:27,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:08:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:08:27,938 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 132 out of 195 [2024-11-13 16:08:27,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 177 transitions, 366 flow. Second operand has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 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 16:08:27,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:27,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 132 of 195 [2024-11-13 16:08:27,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:28,823 INFO L124 PetriNetUnfolderBase]: 579/2261 cut-off events. [2024-11-13 16:08:28,824 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 16:08:28,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3523 conditions, 2261 events. 579/2261 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 15647 event pairs, 328 based on Foata normal form. 0/2065 useless extension candidates. Maximal degree in co-relation 3479. Up to 1080 conditions per place. [2024-11-13 16:08:28,834 INFO L140 encePairwiseOnDemand]: 172/195 looper letters, 73 selfloop transitions, 70 changer transitions 0/270 dead transitions. [2024-11-13 16:08:28,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 270 transitions, 838 flow [2024-11-13 16:08:28,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:08:28,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:08:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 936 transitions. [2024-11-13 16:08:28,838 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8 [2024-11-13 16:08:28,838 INFO L175 Difference]: Start difference. First operand has 182 places, 177 transitions, 366 flow. Second operand 6 states and 936 transitions. [2024-11-13 16:08:28,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 270 transitions, 838 flow [2024-11-13 16:08:28,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 270 transitions, 834 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:08:28,846 INFO L231 Difference]: Finished difference. Result has 190 places, 246 transitions, 824 flow [2024-11-13 16:08:28,847 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=824, PETRI_PLACES=190, PETRI_TRANSITIONS=246} [2024-11-13 16:08:28,848 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 5 predicate places. [2024-11-13 16:08:28,848 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 246 transitions, 824 flow [2024-11-13 16:08:28,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.5) internal successors, (801), 6 states have internal predecessors, (801), 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 16:08:28,849 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:28,849 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] [2024-11-13 16:08:28,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:08:28,849 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:28,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:28,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1009860157, now seen corresponding path program 1 times [2024-11-13 16:08:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:28,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388417984] [2024-11-13 16:08:28,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:28,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:28,924 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 16:08:28,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:28,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388417984] [2024-11-13 16:08:28,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388417984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:28,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:28,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:08:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093569138] [2024-11-13 16:08:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:28,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:28,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:28,964 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 164 out of 195 [2024-11-13 16:08:28,965 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 246 transitions, 824 flow. Second operand has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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 16:08:28,965 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:28,965 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 164 of 195 [2024-11-13 16:08:28,965 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:29,203 INFO L124 PetriNetUnfolderBase]: 171/1197 cut-off events. [2024-11-13 16:08:29,204 INFO L125 PetriNetUnfolderBase]: For 119/136 co-relation queries the response was YES. [2024-11-13 16:08:29,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1891 conditions, 1197 events. 171/1197 cut-off events. For 119/136 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 7353 event pairs, 35 based on Foata normal form. 1/1109 useless extension candidates. Maximal degree in co-relation 1843. Up to 223 conditions per place. [2024-11-13 16:08:29,212 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 22 selfloop transitions, 3 changer transitions 0/252 dead transitions. [2024-11-13 16:08:29,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 252 transitions, 886 flow [2024-11-13 16:08:29,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:29,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2024-11-13 16:08:29,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8837606837606837 [2024-11-13 16:08:29,217 INFO L175 Difference]: Start difference. First operand has 190 places, 246 transitions, 824 flow. Second operand 3 states and 517 transitions. [2024-11-13 16:08:29,217 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 252 transitions, 886 flow [2024-11-13 16:08:29,225 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 252 transitions, 886 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:08:29,229 INFO L231 Difference]: Finished difference. Result has 193 places, 246 transitions, 835 flow [2024-11-13 16:08:29,229 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=824, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=835, PETRI_PLACES=193, PETRI_TRANSITIONS=246} [2024-11-13 16:08:29,232 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 8 predicate places. [2024-11-13 16:08:29,232 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 246 transitions, 835 flow [2024-11-13 16:08:29,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 166.0) internal successors, (498), 3 states have internal predecessors, (498), 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 16:08:29,233 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:29,234 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 16:08:29,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:08:29,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:29,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:29,235 INFO L85 PathProgramCache]: Analyzing trace with hash 705585571, now seen corresponding path program 1 times [2024-11-13 16:08:29,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935488043] [2024-11-13 16:08:29,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:29,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:29,310 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 16:08:29,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:29,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935488043] [2024-11-13 16:08:29,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935488043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:29,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:29,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:29,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156794866] [2024-11-13 16:08:29,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:29,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:29,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:29,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:29,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:29,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 195 [2024-11-13 16:08:29,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 246 transitions, 835 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 16:08:29,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:29,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 195 [2024-11-13 16:08:29,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:29,547 INFO L124 PetriNetUnfolderBase]: 165/1034 cut-off events. [2024-11-13 16:08:29,547 INFO L125 PetriNetUnfolderBase]: For 109/128 co-relation queries the response was YES. [2024-11-13 16:08:29,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1750 conditions, 1034 events. 165/1034 cut-off events. For 109/128 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6089 event pairs, 22 based on Foata normal form. 0/975 useless extension candidates. Maximal degree in co-relation 1701. Up to 253 conditions per place. [2024-11-13 16:08:29,553 INFO L140 encePairwiseOnDemand]: 192/195 looper letters, 20 selfloop transitions, 1 changer transitions 0/248 dead transitions. [2024-11-13 16:08:29,554 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 248 transitions, 881 flow [2024-11-13 16:08:29,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:29,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 512 transitions. [2024-11-13 16:08:29,556 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8752136752136752 [2024-11-13 16:08:29,556 INFO L175 Difference]: Start difference. First operand has 193 places, 246 transitions, 835 flow. Second operand 3 states and 512 transitions. [2024-11-13 16:08:29,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 248 transitions, 881 flow [2024-11-13 16:08:29,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 191 places, 248 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:08:29,566 INFO L231 Difference]: Finished difference. Result has 191 places, 244 transitions, 827 flow [2024-11-13 16:08:29,566 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=195, PETRI_DIFFERENCE_MINUEND_FLOW=825, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=827, PETRI_PLACES=191, PETRI_TRANSITIONS=244} [2024-11-13 16:08:29,567 INFO L277 CegarLoopForPetriNet]: 185 programPoint places, 6 predicate places. [2024-11-13 16:08:29,567 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 244 transitions, 827 flow [2024-11-13 16:08:29,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 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 16:08:29,568 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:29,568 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] [2024-11-13 16:08:29,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 16:08:29,569 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-13 16:08:29,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:29,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1444690846, now seen corresponding path program 1 times [2024-11-13 16:08:29,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:29,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375850086] [2024-11-13 16:08:29,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:29,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:08:29,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 16:08:29,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 16:08:29,661 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 16:08:29,661 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 16:08:29,662 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 20 remaining) [2024-11-13 16:08:29,664 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 20 remaining) [2024-11-13 16:08:29,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 20 remaining) [2024-11-13 16:08:29,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 20 remaining) [2024-11-13 16:08:29,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (15 of 20 remaining) [2024-11-13 16:08:29,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (14 of 20 remaining) [2024-11-13 16:08:29,665 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (11 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (10 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (9 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (8 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (7 of 20 remaining) [2024-11-13 16:08:29,666 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (6 of 20 remaining) [2024-11-13 16:08:29,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (5 of 20 remaining) [2024-11-13 16:08:29,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONDATA_RACE (4 of 20 remaining) [2024-11-13 16:08:29,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (3 of 20 remaining) [2024-11-13 16:08:29,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONDATA_RACE (2 of 20 remaining) [2024-11-13 16:08:29,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONDATA_RACE (1 of 20 remaining) [2024-11-13 16:08:29,667 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONDATA_RACE (0 of 20 remaining) [2024-11-13 16:08:29,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:08:29,668 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:08:29,671 WARN L247 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-13 16:08:29,671 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-13 16:08:29,725 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 16:08:29,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 251 places, 266 transitions, 548 flow [2024-11-13 16:08:29,798 INFO L124 PetriNetUnfolderBase]: 34/428 cut-off events. [2024-11-13 16:08:29,799 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-13 16:08:29,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440 conditions, 428 events. 34/428 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1605 event pairs, 0 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 264. Up to 8 conditions per place. [2024-11-13 16:08:29,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 251 places, 266 transitions, 548 flow [2024-11-13 16:08:29,806 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 251 places, 266 transitions, 548 flow [2024-11-13 16:08:29,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:08:29,808 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;@47d62b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:08:29,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-13 16:08:29,811 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 16:08:29,812 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-11-13 16:08:29,812 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 16:08:29,812 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:29,812 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] [2024-11-13 16:08:29,812 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:29,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:29,813 INFO L85 PathProgramCache]: Analyzing trace with hash -10813862, now seen corresponding path program 1 times [2024-11-13 16:08:29,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:29,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71518018] [2024-11-13 16:08:29,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:29,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:29,844 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 16:08:29,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:29,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71518018] [2024-11-13 16:08:29,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71518018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:29,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:29,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:29,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072119825] [2024-11-13 16:08:29,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:29,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:29,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:29,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:29,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:29,874 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 266 [2024-11-13 16:08:29,875 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 266 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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 16:08:29,875 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:29,875 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 266 [2024-11-13 16:08:29,875 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:30,980 INFO L124 PetriNetUnfolderBase]: 610/5011 cut-off events. [2024-11-13 16:08:30,980 INFO L125 PetriNetUnfolderBase]: For 74/74 co-relation queries the response was YES. [2024-11-13 16:08:30,995 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6089 conditions, 5011 events. 610/5011 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 46841 event pairs, 600 based on Foata normal form. 696/5207 useless extension candidates. Maximal degree in co-relation 5147. Up to 1033 conditions per place. [2024-11-13 16:08:31,015 INFO L140 encePairwiseOnDemand]: 245/266 looper letters, 26 selfloop transitions, 2 changer transitions 0/245 dead transitions. [2024-11-13 16:08:31,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 245 transitions, 562 flow [2024-11-13 16:08:31,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:31,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 701 transitions. [2024-11-13 16:08:31,018 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8784461152882206 [2024-11-13 16:08:31,018 INFO L175 Difference]: Start difference. First operand has 251 places, 266 transitions, 548 flow. Second operand 3 states and 701 transitions. [2024-11-13 16:08:31,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 245 transitions, 562 flow [2024-11-13 16:08:31,020 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 245 transitions, 562 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:08:31,023 INFO L231 Difference]: Finished difference. Result has 250 places, 245 transitions, 510 flow [2024-11-13 16:08:31,023 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=510, PETRI_PLACES=250, PETRI_TRANSITIONS=245} [2024-11-13 16:08:31,028 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, -1 predicate places. [2024-11-13 16:08:31,028 INFO L471 AbstractCegarLoop]: Abstraction has has 250 places, 245 transitions, 510 flow [2024-11-13 16:08:31,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 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 16:08:31,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:31,029 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] [2024-11-13 16:08:31,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:08:31,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:31,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:31,029 INFO L85 PathProgramCache]: Analyzing trace with hash -1802163073, now seen corresponding path program 1 times [2024-11-13 16:08:31,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:31,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913098035] [2024-11-13 16:08:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:31,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:31,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:31,066 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 16:08:31,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:31,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913098035] [2024-11-13 16:08:31,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913098035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:31,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:31,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:31,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018364870] [2024-11-13 16:08:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:31,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:31,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:31,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:31,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:31,081 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 266 [2024-11-13 16:08:31,082 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 250 places, 245 transitions, 510 flow. Second operand has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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 16:08:31,083 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:31,083 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 266 [2024-11-13 16:08:31,083 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:32,089 INFO L124 PetriNetUnfolderBase]: 598/4945 cut-off events. [2024-11-13 16:08:32,089 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-13 16:08:32,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6004 conditions, 4945 events. 598/4945 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 45964 event pairs, 594 based on Foata normal form. 0/4466 useless extension candidates. Maximal degree in co-relation 5957. Up to 1011 conditions per place. [2024-11-13 16:08:32,184 INFO L140 encePairwiseOnDemand]: 263/266 looper letters, 24 selfloop transitions, 1 changer transitions 0/243 dead transitions. [2024-11-13 16:08:32,184 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 243 transitions, 556 flow [2024-11-13 16:08:32,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:32,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:32,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 687 transitions. [2024-11-13 16:08:32,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8609022556390977 [2024-11-13 16:08:32,187 INFO L175 Difference]: Start difference. First operand has 250 places, 245 transitions, 510 flow. Second operand 3 states and 687 transitions. [2024-11-13 16:08:32,187 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 243 transitions, 556 flow [2024-11-13 16:08:32,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 243 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:08:32,191 INFO L231 Difference]: Finished difference. Result has 248 places, 243 transitions, 504 flow [2024-11-13 16:08:32,192 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=243, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=242, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=504, PETRI_PLACES=248, PETRI_TRANSITIONS=243} [2024-11-13 16:08:32,193 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, -3 predicate places. [2024-11-13 16:08:32,193 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 243 transitions, 504 flow [2024-11-13 16:08:32,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 221.0) internal successors, (663), 3 states have internal predecessors, (663), 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 16:08:32,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:32,194 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] [2024-11-13 16:08:32,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 16:08:32,194 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:32,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1234243716, now seen corresponding path program 1 times [2024-11-13 16:08:32,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:32,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990133015] [2024-11-13 16:08:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:32,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:32,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:32,225 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 16:08:32,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:32,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990133015] [2024-11-13 16:08:32,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990133015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:32,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:32,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:32,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502919728] [2024-11-13 16:08:32,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:32,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:32,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:32,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:32,271 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 266 [2024-11-13 16:08:32,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 243 transitions, 504 flow. Second operand has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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 16:08:32,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:32,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 266 [2024-11-13 16:08:32,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:33,277 INFO L124 PetriNetUnfolderBase]: 868/5486 cut-off events. [2024-11-13 16:08:33,277 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-13 16:08:33,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6986 conditions, 5486 events. 868/5486 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 52468 event pairs, 856 based on Foata normal form. 0/4950 useless extension candidates. Maximal degree in co-relation 6941. Up to 1443 conditions per place. [2024-11-13 16:08:33,327 INFO L140 encePairwiseOnDemand]: 263/266 looper letters, 28 selfloop transitions, 2 changer transitions 0/242 dead transitions. [2024-11-13 16:08:33,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 242 transitions, 562 flow [2024-11-13 16:08:33,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:33,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:33,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 679 transitions. [2024-11-13 16:08:33,330 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8508771929824561 [2024-11-13 16:08:33,330 INFO L175 Difference]: Start difference. First operand has 248 places, 243 transitions, 504 flow. Second operand 3 states and 679 transitions. [2024-11-13 16:08:33,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 242 transitions, 562 flow [2024-11-13 16:08:33,332 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 242 transitions, 561 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:08:33,335 INFO L231 Difference]: Finished difference. Result has 248 places, 242 transitions, 505 flow [2024-11-13 16:08:33,335 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=505, PETRI_PLACES=248, PETRI_TRANSITIONS=242} [2024-11-13 16:08:33,336 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, -3 predicate places. [2024-11-13 16:08:33,337 INFO L471 AbstractCegarLoop]: Abstraction has has 248 places, 242 transitions, 505 flow [2024-11-13 16:08:33,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 217.33333333333334) internal successors, (652), 3 states have internal predecessors, (652), 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 16:08:33,337 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:33,337 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] [2024-11-13 16:08:33,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:08:33,338 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:33,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:33,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1977573431, now seen corresponding path program 1 times [2024-11-13 16:08:33,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:33,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078289846] [2024-11-13 16:08:33,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:33,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:33,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:33,768 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 16:08:33,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:33,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078289846] [2024-11-13 16:08:33,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078289846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:33,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:33,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:08:33,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067547259] [2024-11-13 16:08:33,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:33,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:08:33,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:33,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:08:33,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:08:34,155 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 266 [2024-11-13 16:08:34,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 242 transitions, 505 flow. Second operand has 6 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 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 16:08:34,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:34,157 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 266 [2024-11-13 16:08:34,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:43,652 INFO L124 PetriNetUnfolderBase]: 29149/69812 cut-off events. [2024-11-13 16:08:43,652 INFO L125 PetriNetUnfolderBase]: For 710/710 co-relation queries the response was YES. [2024-11-13 16:08:43,769 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115348 conditions, 69812 events. 29149/69812 cut-off events. For 710/710 co-relation queries the response was YES. Maximal size of possible extension queue 1132. Compared 786766 event pairs, 19147 based on Foata normal form. 0/65025 useless extension candidates. Maximal degree in co-relation 115303. Up to 40545 conditions per place. [2024-11-13 16:08:44,023 INFO L140 encePairwiseOnDemand]: 227/266 looper letters, 122 selfloop transitions, 134 changer transitions 0/424 dead transitions. [2024-11-13 16:08:44,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 424 transitions, 1386 flow [2024-11-13 16:08:44,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:08:44,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:08:44,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1295 transitions. [2024-11-13 16:08:44,028 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8114035087719298 [2024-11-13 16:08:44,028 INFO L175 Difference]: Start difference. First operand has 248 places, 242 transitions, 505 flow. Second operand 6 states and 1295 transitions. [2024-11-13 16:08:44,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 424 transitions, 1386 flow [2024-11-13 16:08:44,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 424 transitions, 1382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 16:08:44,045 INFO L231 Difference]: Finished difference. Result has 256 places, 375 transitions, 1379 flow [2024-11-13 16:08:44,046 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=501, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1379, PETRI_PLACES=256, PETRI_TRANSITIONS=375} [2024-11-13 16:08:44,047 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, 5 predicate places. [2024-11-13 16:08:44,049 INFO L471 AbstractCegarLoop]: Abstraction has has 256 places, 375 transitions, 1379 flow [2024-11-13 16:08:44,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 174.5) internal successors, (1047), 6 states have internal predecessors, (1047), 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 16:08:44,050 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:44,050 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] [2024-11-13 16:08:44,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:08:44,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:44,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:44,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1014823367, now seen corresponding path program 1 times [2024-11-13 16:08:44,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:44,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304092955] [2024-11-13 16:08:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:44,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:44,119 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 16:08:44,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:44,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304092955] [2024-11-13 16:08:44,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304092955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:44,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:44,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:08:44,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477770708] [2024-11-13 16:08:44,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:44,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:44,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:44,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:44,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:44,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 266 [2024-11-13 16:08:44,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 375 transitions, 1379 flow. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 16:08:44,163 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:44,163 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 266 [2024-11-13 16:08:44,163 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:48,648 INFO L124 PetriNetUnfolderBase]: 9909/32496 cut-off events. [2024-11-13 16:08:48,648 INFO L125 PetriNetUnfolderBase]: For 4659/5158 co-relation queries the response was YES. [2024-11-13 16:08:48,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57608 conditions, 32496 events. 9909/32496 cut-off events. For 4659/5158 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 377657 event pairs, 5139 based on Foata normal form. 1/29950 useless extension candidates. Maximal degree in co-relation 57559. Up to 12346 conditions per place. [2024-11-13 16:08:48,836 INFO L140 encePairwiseOnDemand]: 263/266 looper letters, 32 selfloop transitions, 3 changer transitions 0/383 dead transitions. [2024-11-13 16:08:48,837 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 383 transitions, 1471 flow [2024-11-13 16:08:48,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:48,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 697 transitions. [2024-11-13 16:08:48,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8734335839598998 [2024-11-13 16:08:48,839 INFO L175 Difference]: Start difference. First operand has 256 places, 375 transitions, 1379 flow. Second operand 3 states and 697 transitions. [2024-11-13 16:08:48,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 383 transitions, 1471 flow [2024-11-13 16:08:49,130 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 383 transitions, 1471 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:08:49,134 INFO L231 Difference]: Finished difference. Result has 259 places, 377 transitions, 1404 flow [2024-11-13 16:08:49,134 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1379, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=372, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1404, PETRI_PLACES=259, PETRI_TRANSITIONS=377} [2024-11-13 16:08:49,135 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, 8 predicate places. [2024-11-13 16:08:49,135 INFO L471 AbstractCegarLoop]: Abstraction has has 259 places, 377 transitions, 1404 flow [2024-11-13 16:08:49,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 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 16:08:49,136 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:49,136 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 16:08:49,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:08:49,136 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:49,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:49,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1410361816, now seen corresponding path program 1 times [2024-11-13 16:08:49,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:49,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629666955] [2024-11-13 16:08:49,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:49,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:49,184 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 16:08:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:49,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629666955] [2024-11-13 16:08:49,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629666955] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:49,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:49,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:08:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437329355] [2024-11-13 16:08:49,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:49,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:08:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:49,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:08:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:08:49,205 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 214 out of 266 [2024-11-13 16:08:49,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 377 transitions, 1404 flow. Second operand has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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 16:08:49,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:49,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 214 of 266 [2024-11-13 16:08:49,207 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:08:53,528 INFO L124 PetriNetUnfolderBase]: 10241/34252 cut-off events. [2024-11-13 16:08:53,528 INFO L125 PetriNetUnfolderBase]: For 4536/4713 co-relation queries the response was YES. [2024-11-13 16:08:53,611 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62110 conditions, 34252 events. 10241/34252 cut-off events. For 4536/4713 co-relation queries the response was YES. Maximal size of possible extension queue 643. Compared 401483 event pairs, 3579 based on Foata normal form. 0/32356 useless extension candidates. Maximal degree in co-relation 62060. Up to 12253 conditions per place. [2024-11-13 16:08:53,693 INFO L140 encePairwiseOnDemand]: 260/266 looper letters, 38 selfloop transitions, 2 changer transitions 0/384 dead transitions. [2024-11-13 16:08:53,693 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 384 transitions, 1503 flow [2024-11-13 16:08:53,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:08:53,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 16:08:53,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2024-11-13 16:08:53,695 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8596491228070176 [2024-11-13 16:08:53,695 INFO L175 Difference]: Start difference. First operand has 259 places, 377 transitions, 1404 flow. Second operand 3 states and 686 transitions. [2024-11-13 16:08:53,695 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 384 transitions, 1503 flow [2024-11-13 16:08:53,872 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 384 transitions, 1500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 16:08:53,875 INFO L231 Difference]: Finished difference. Result has 257 places, 375 transitions, 1407 flow [2024-11-13 16:08:53,875 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1393, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=373, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1407, PETRI_PLACES=257, PETRI_TRANSITIONS=375} [2024-11-13 16:08:53,876 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, 6 predicate places. [2024-11-13 16:08:53,876 INFO L471 AbstractCegarLoop]: Abstraction has has 257 places, 375 transitions, 1407 flow [2024-11-13 16:08:53,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 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 16:08:53,876 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:08:53,877 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] [2024-11-13 16:08:53,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:08:53,877 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:08:53,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:08:53,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1780784175, now seen corresponding path program 1 times [2024-11-13 16:08:53,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:08:53,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845150319] [2024-11-13 16:08:53,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:08:53,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:08:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:08:54,352 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 16:08:54,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:08:54,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845150319] [2024-11-13 16:08:54,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845150319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:08:54,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:08:54,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:08:54,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302179016] [2024-11-13 16:08:54,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:08:54,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:08:54,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:08:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:08:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:08:55,118 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 177 out of 266 [2024-11-13 16:08:55,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 375 transitions, 1407 flow. Second operand has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 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 16:08:55,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:08:55,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 177 of 266 [2024-11-13 16:08:55,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:09:06,940 INFO L124 PetriNetUnfolderBase]: 39018/88040 cut-off events. [2024-11-13 16:09:06,940 INFO L125 PetriNetUnfolderBase]: For 32449/35922 co-relation queries the response was YES. [2024-11-13 16:09:07,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 202674 conditions, 88040 events. 39018/88040 cut-off events. For 32449/35922 co-relation queries the response was YES. Maximal size of possible extension queue 1947. Compared 1003056 event pairs, 10229 based on Foata normal form. 47/84504 useless extension candidates. Maximal degree in co-relation 202623. Up to 36092 conditions per place. [2024-11-13 16:09:07,531 INFO L140 encePairwiseOnDemand]: 218/266 looper letters, 473 selfloop transitions, 219 changer transitions 0/866 dead transitions. [2024-11-13 16:09:07,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 866 transitions, 5021 flow [2024-11-13 16:09:07,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 16:09:07,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 16:09:07,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1400 transitions. [2024-11-13 16:09:07,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8771929824561403 [2024-11-13 16:09:07,536 INFO L175 Difference]: Start difference. First operand has 257 places, 375 transitions, 1407 flow. Second operand 6 states and 1400 transitions. [2024-11-13 16:09:07,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 866 transitions, 5021 flow [2024-11-13 16:09:08,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 866 transitions, 5021 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 16:09:08,080 INFO L231 Difference]: Finished difference. Result has 267 places, 606 transitions, 3723 flow [2024-11-13 16:09:08,081 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=1407, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=375, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3723, PETRI_PLACES=267, PETRI_TRANSITIONS=606} [2024-11-13 16:09:08,081 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, 16 predicate places. [2024-11-13 16:09:08,081 INFO L471 AbstractCegarLoop]: Abstraction has has 267 places, 606 transitions, 3723 flow [2024-11-13 16:09:08,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 179.33333333333334) internal successors, (1076), 6 states have internal predecessors, (1076), 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 16:09:08,083 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:09:08,083 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] [2024-11-13 16:09:08,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:09:08,083 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:09:08,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:09:08,084 INFO L85 PathProgramCache]: Analyzing trace with hash -336051268, now seen corresponding path program 1 times [2024-11-13 16:09:08,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:09:08,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840668916] [2024-11-13 16:09:08,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:08,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:09:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:09:08,226 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:09:08,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:09:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840668916] [2024-11-13 16:09:08,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840668916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:09:08,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473904837] [2024-11-13 16:09:08,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:08,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:09:08,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:09:08,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:09:08,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:09:08,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:09:08,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 16:09:08,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:09:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:09:08,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:09:08,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:09:08,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473904837] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:09:08,648 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:09:08,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-13 16:09:08,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085027837] [2024-11-13 16:09:08,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:09:08,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 16:09:08,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:09:08,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 16:09:08,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-13 16:09:08,769 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 266 [2024-11-13 16:09:08,773 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 606 transitions, 3723 flow. Second operand has 10 states, 10 states have (on average 220.3) internal successors, (2203), 10 states have internal predecessors, (2203), 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 16:09:08,773 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:09:08,773 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 266 [2024-11-13 16:09:08,773 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 16:09:16,732 INFO L124 PetriNetUnfolderBase]: 20791/52238 cut-off events. [2024-11-13 16:09:16,732 INFO L125 PetriNetUnfolderBase]: For 51055/54868 co-relation queries the response was YES. [2024-11-13 16:09:16,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143705 conditions, 52238 events. 20791/52238 cut-off events. For 51055/54868 co-relation queries the response was YES. Maximal size of possible extension queue 1027. Compared 566971 event pairs, 2309 based on Foata normal form. 604/51499 useless extension candidates. Maximal degree in co-relation 143649. Up to 18354 conditions per place. [2024-11-13 16:09:17,105 INFO L140 encePairwiseOnDemand]: 261/266 looper letters, 72 selfloop transitions, 9 changer transitions 0/612 dead transitions. [2024-11-13 16:09:17,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 612 transitions, 3889 flow [2024-11-13 16:09:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 16:09:17,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 16:09:17,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2043 transitions. [2024-11-13 16:09:17,111 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8533834586466166 [2024-11-13 16:09:17,111 INFO L175 Difference]: Start difference. First operand has 267 places, 606 transitions, 3723 flow. Second operand 9 states and 2043 transitions. [2024-11-13 16:09:17,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 612 transitions, 3889 flow [2024-11-13 16:09:18,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 612 transitions, 3871 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-13 16:09:18,330 INFO L231 Difference]: Finished difference. Result has 225 places, 556 transitions, 3615 flow [2024-11-13 16:09:18,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=266, PETRI_DIFFERENCE_MINUEND_FLOW=3593, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=554, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=547, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3615, PETRI_PLACES=225, PETRI_TRANSITIONS=556} [2024-11-13 16:09:18,331 INFO L277 CegarLoopForPetriNet]: 251 programPoint places, -26 predicate places. [2024-11-13 16:09:18,331 INFO L471 AbstractCegarLoop]: Abstraction has has 225 places, 556 transitions, 3615 flow [2024-11-13 16:09:18,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 220.3) internal successors, (2203), 10 states have internal predecessors, (2203), 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 16:09:18,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 16:09:18,333 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] [2024-11-13 16:09:18,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:09:18,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f1840d-9b40-464e-9a67-d83a884a37a3/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 16:09:18,537 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 23 more)] === [2024-11-13 16:09:18,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:09:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash -2135677896, now seen corresponding path program 1 times [2024-11-13 16:09:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:09:18,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727701651] [2024-11-13 16:09:18,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:09:18,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:09:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:09:18,949 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 16:09:18,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:09:18,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727701651] [2024-11-13 16:09:18,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727701651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:09:18,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:09:18,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 16:09:18,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009938509] [2024-11-13 16:09:18,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:09:18,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 16:09:18,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:09:18,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 16:09:18,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-13 16:09:19,357 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 266 [2024-11-13 16:09:19,359 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 556 transitions, 3615 flow. Second operand has 6 states, 6 states have (on average 173.33333333333334) internal successors, (1040), 6 states have internal predecessors, (1040), 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 16:09:19,359 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 16:09:19,359 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 266 [2024-11-13 16:09:19,359 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand