./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-lit/sssc12_variant.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB --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 0ff08c0361e0fdb1af5d85b333c023f31932563eeba591605f3b3b9ddd16afc8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:04:50,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:04:50,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-11-27 20:04:50,961 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:04:50,962 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:04:50,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:04:50,992 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:04:50,992 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:04:50,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:04:50,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:04:50,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:04:50,994 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:04:50,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:04:50,995 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:04:50,995 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:04:50,995 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:04:50,995 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:04:50,996 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:04:50,997 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:04:50,998 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:04:50,998 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:04:50,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:04:50,999 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:50,999 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:04:50,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:04:50,999 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:51,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:04:51,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:04:51,001 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:04:51,001 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:04:51,001 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_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0ff08c0361e0fdb1af5d85b333c023f31932563eeba591605f3b3b9ddd16afc8 [2024-11-27 20:04:51,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:04:51,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:04:51,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:04:51,395 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:04:51,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:04:51,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/pthread-lit/sssc12_variant.i [2024-11-27 20:04:54,787 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/data/fb9b31f88/375eaa9f13364f2da549eb3d3a8c7ac7/FLAG055583875 [2024-11-27 20:04:55,249 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:04:55,250 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/sv-benchmarks/c/pthread-lit/sssc12_variant.i [2024-11-27 20:04:55,271 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/data/fb9b31f88/375eaa9f13364f2da549eb3d3a8c7ac7/FLAG055583875 [2024-11-27 20:04:55,289 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/data/fb9b31f88/375eaa9f13364f2da549eb3d3a8c7ac7 [2024-11-27 20:04:55,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:04:55,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:04:55,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:04:55,296 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:04:55,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:04:55,302 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:04:55" (1/1) ... [2024-11-27 20:04:55,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae93f64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:55, skipping insertion in model container [2024-11-27 20:04:55,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:04:55" (1/1) ... [2024-11-27 20:04:55,353 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:04:55,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:04:55,913 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:04:55,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:04:56,066 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:04:56,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56 WrapperNode [2024-11-27 20:04:56,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:04:56,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:04:56,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:04:56,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:04:56,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,153 INFO L138 Inliner]: procedures = 272, calls = 22, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 136 [2024-11-27 20:04:56,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:04:56,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:04:56,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:04:56,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:04:56,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,195 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,200 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,203 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,212 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:04:56,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:04:56,218 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:04:56,218 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:04:56,225 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (1/1) ... [2024-11-27 20:04:56,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:04:56,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:04:56,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:04:56,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e5d14c-8173-4055-9c0b-8614a9cb3439/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:04:56,314 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2024-11-27 20:04:56,315 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2024-11-27 20:04:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-27 20:04:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-27 20:04:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-27 20:04:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-27 20:04:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 20:04:56,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:04:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-27 20:04:56,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:04:56,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:04:56,318 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-27 20:04:56,481 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:04:56,483 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:04:56,878 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-27 20:04:56,878 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:04:56,917 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:04:56,919 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-27 20:04:56,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:04:56 BoogieIcfgContainer [2024-11-27 20:04:56,920 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:04:56,922 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:04:56,922 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:04:56,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:04:56,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:04:55" (1/3) ... [2024-11-27 20:04:56,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8eb921f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:04:56, skipping insertion in model container [2024-11-27 20:04:56,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:04:56" (2/3) ... [2024-11-27 20:04:56,935 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8eb921f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:04:56, skipping insertion in model container [2024-11-27 20:04:56,935 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:04:56" (3/3) ... [2024-11-27 20:04:56,937 INFO L128 eAbstractionObserver]: Analyzing ICFG sssc12_variant.i [2024-11-27 20:04:56,954 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:04:56,956 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG sssc12_variant.i that has 2 procedures, 157 locations, 1 initial locations, 2 loop locations, and 17 error locations. [2024-11-27 20:04:56,957 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-27 20:04:57,062 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:04:57,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 165 transitions, 334 flow [2024-11-27 20:04:57,210 INFO L124 PetriNetUnfolderBase]: 9/175 cut-off events. [2024-11-27 20:04:57,243 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:04:57,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 175 events. 9/175 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 142 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 97. Up to 4 conditions per place. [2024-11-27 20:04:57,255 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 165 transitions, 334 flow [2024-11-27 20:04:57,262 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 165 transitions, 334 flow [2024-11-27 20:04:57,274 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:04:57,294 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;@3aab3c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:04:57,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-27 20:04:57,304 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:04:57,304 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-27 20:04:57,304 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:04:57,304 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:57,305 INFO L206 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] [2024-11-27 20:04:57,305 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-27 20:04:57,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:57,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1472072303, now seen corresponding path program 1 times [2024-11-27 20:04:57,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:57,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593098451] [2024-11-27 20:04:57,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:57,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:57,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:57,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593098451] [2024-11-27 20:04:57,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593098451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:57,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:57,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:04:57,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443583470] [2024-11-27 20:04:57,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:57,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:04:57,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:57,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:04:57,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:04:57,685 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-27 20:04:57,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 165 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-27 20:04:57,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:57,691 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-27 20:04:57,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:57,758 INFO L124 PetriNetUnfolderBase]: 3/154 cut-off events. [2024-11-27 20:04:57,758 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:04:57,759 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 154 events. 3/154 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 12/145 useless extension candidates. Maximal degree in co-relation 91. Up to 11 conditions per place. [2024-11-27 20:04:57,760 INFO L140 encePairwiseOnDemand]: 156/165 looper letters, 10 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2024-11-27 20:04:57,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 151 transitions, 330 flow [2024-11-27 20:04:57,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:04:57,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:04:57,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 451 transitions. [2024-11-27 20:04:57,776 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9111111111111111 [2024-11-27 20:04:57,778 INFO L175 Difference]: Start difference. First operand has 160 places, 165 transitions, 334 flow. Second operand 3 states and 451 transitions. [2024-11-27 20:04:57,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 151 transitions, 330 flow [2024-11-27 20:04:57,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 151 transitions, 330 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:04:57,788 INFO L231 Difference]: Finished difference. Result has 153 places, 150 transitions, 308 flow [2024-11-27 20:04:57,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=308, PETRI_PLACES=153, PETRI_TRANSITIONS=150} [2024-11-27 20:04:57,795 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -7 predicate places. [2024-11-27 20:04:57,795 INFO L471 AbstractCegarLoop]: Abstraction has has 153 places, 150 transitions, 308 flow [2024-11-27 20:04:57,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-27 20:04:57,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:57,796 INFO L206 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] [2024-11-27 20:04:57,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:04:57,796 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-27 20:04:57,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:57,797 INFO L85 PathProgramCache]: Analyzing trace with hash 2025066471, now seen corresponding path program 1 times [2024-11-27 20:04:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:57,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993728760] [2024-11-27 20:04:57,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:57,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:57,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:57,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:57,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993728760] [2024-11-27 20:04:57,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993728760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:57,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:57,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:04:57,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692121568] [2024-11-27 20:04:57,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:57,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:04:57,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:57,957 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:04:57,957 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:04:58,027 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 144 out of 165 [2024-11-27 20:04:58,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 150 transitions, 308 flow. Second operand has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-27 20:04:58,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:58,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 144 of 165 [2024-11-27 20:04:58,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:58,107 INFO L124 PetriNetUnfolderBase]: 3/152 cut-off events. [2024-11-27 20:04:58,107 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:04:58,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 152 events. 3/152 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 139. Up to 11 conditions per place. [2024-11-27 20:04:58,109 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 10 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2024-11-27 20:04:58,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 149 transitions, 330 flow [2024-11-27 20:04:58,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:04:58,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:04:58,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 445 transitions. [2024-11-27 20:04:58,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.898989898989899 [2024-11-27 20:04:58,114 INFO L175 Difference]: Start difference. First operand has 153 places, 150 transitions, 308 flow. Second operand 3 states and 445 transitions. [2024-11-27 20:04:58,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 149 transitions, 330 flow [2024-11-27 20:04:58,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 149 transitions, 326 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:04:58,119 INFO L231 Difference]: Finished difference. Result has 151 places, 149 transitions, 306 flow [2024-11-27 20:04:58,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=306, PETRI_PLACES=151, PETRI_TRANSITIONS=149} [2024-11-27 20:04:58,120 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -9 predicate places. [2024-11-27 20:04:58,121 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 149 transitions, 306 flow [2024-11-27 20:04:58,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 145.33333333333334) internal successors, (436), 3 states have internal predecessors, (436), 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) [2024-11-27 20:04:58,121 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:58,122 INFO L206 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] [2024-11-27 20:04:58,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:04:58,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-27 20:04:58,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:58,123 INFO L85 PathProgramCache]: Analyzing trace with hash -546567309, now seen corresponding path program 1 times [2024-11-27 20:04:58,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:58,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765963352] [2024-11-27 20:04:58,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:58,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:58,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:58,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765963352] [2024-11-27 20:04:58,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765963352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:58,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:58,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:04:58,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622255061] [2024-11-27 20:04:58,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:58,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:04:58,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:58,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:04:58,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:04:58,262 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 165 [2024-11-27 20:04:58,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 149 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2024-11-27 20:04:58,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:58,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 165 [2024-11-27 20:04:58,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:58,313 INFO L124 PetriNetUnfolderBase]: 3/148 cut-off events. [2024-11-27 20:04:58,314 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:04:58,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 148 events. 3/148 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 80 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 127. Up to 11 conditions per place. [2024-11-27 20:04:58,315 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 11 selfloop transitions, 1 changer transitions 0/145 dead transitions. [2024-11-27 20:04:58,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 322 flow [2024-11-27 20:04:58,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:04:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:04:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 442 transitions. [2024-11-27 20:04:58,317 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8929292929292929 [2024-11-27 20:04:58,317 INFO L175 Difference]: Start difference. First operand has 151 places, 149 transitions, 306 flow. Second operand 3 states and 442 transitions. [2024-11-27 20:04:58,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 322 flow [2024-11-27 20:04:58,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 145 transitions, 318 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:04:58,324 INFO L231 Difference]: Finished difference. Result has 147 places, 145 transitions, 296 flow [2024-11-27 20:04:58,324 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=296, PETRI_PLACES=147, PETRI_TRANSITIONS=145} [2024-11-27 20:04:58,325 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -13 predicate places. [2024-11-27 20:04:58,325 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 145 transitions, 296 flow [2024-11-27 20:04:58,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 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) [2024-11-27 20:04:58,326 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:58,326 INFO L206 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] [2024-11-27 20:04:58,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:04:58,329 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-27 20:04:58,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:58,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1517808224, now seen corresponding path program 1 times [2024-11-27 20:04:58,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:58,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725765768] [2024-11-27 20:04:58,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:58,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:58,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:58,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725765768] [2024-11-27 20:04:58,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725765768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:58,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:58,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:04:58,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214617601] [2024-11-27 20:04:58,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:58,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:04:58,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:58,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:04:58,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:04:58,595 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 145 out of 165 [2024-11-27 20:04:58,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2024-11-27 20:04:58,599 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:58,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 145 of 165 [2024-11-27 20:04:58,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:58,643 INFO L124 PetriNetUnfolderBase]: 3/147 cut-off events. [2024-11-27 20:04:58,643 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:04:58,644 INFO L83 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 147 events. 3/147 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 79 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 124. Up to 10 conditions per place. [2024-11-27 20:04:58,645 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 9 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2024-11-27 20:04:58,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 144 transitions, 316 flow [2024-11-27 20:04:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:04:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:04:58,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 447 transitions. [2024-11-27 20:04:58,649 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9030303030303031 [2024-11-27 20:04:58,649 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 296 flow. Second operand 3 states and 447 transitions. [2024-11-27 20:04:58,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 144 transitions, 316 flow [2024-11-27 20:04:58,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:04:58,654 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 297 flow [2024-11-27 20:04:58,654 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=297, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2024-11-27 20:04:58,655 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -13 predicate places. [2024-11-27 20:04:58,656 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 297 flow [2024-11-27 20:04:58,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 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) [2024-11-27 20:04:58,657 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:58,657 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:58,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:04:58,659 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-27 20:04:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:58,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1519653185, now seen corresponding path program 1 times [2024-11-27 20:04:58,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:58,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457917902] [2024-11-27 20:04:58,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:58,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:58,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:58,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:58,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457917902] [2024-11-27 20:04:58,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457917902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:58,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:58,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:04:58,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219347820] [2024-11-27 20:04:58,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:58,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:04:58,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:58,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:04:58,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:04:58,911 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 165 [2024-11-27 20:04:58,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 297 flow. Second operand has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 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) [2024-11-27 20:04:58,913 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:58,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 165 [2024-11-27 20:04:58,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:58,989 INFO L124 PetriNetUnfolderBase]: 2/150 cut-off events. [2024-11-27 20:04:58,989 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-27 20:04:58,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 177 conditions, 150 events. 2/150 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 1/137 useless extension candidates. Maximal degree in co-relation 136. Up to 15 conditions per place. [2024-11-27 20:04:58,990 INFO L140 encePairwiseOnDemand]: 161/165 looper letters, 14 selfloop transitions, 0 changer transitions 4/147 dead transitions. [2024-11-27 20:04:58,990 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 147 transitions, 339 flow [2024-11-27 20:04:58,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:04:58,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:04:58,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 724 transitions. [2024-11-27 20:04:58,997 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8775757575757576 [2024-11-27 20:04:58,997 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 297 flow. Second operand 5 states and 724 transitions. [2024-11-27 20:04:58,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 147 transitions, 339 flow [2024-11-27 20:04:58,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 147 transitions, 335 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:04:59,005 INFO L231 Difference]: Finished difference. Result has 152 places, 143 transitions, 297 flow [2024-11-27 20:04:59,006 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=297, PETRI_PLACES=152, PETRI_TRANSITIONS=143} [2024-11-27 20:04:59,007 INFO L279 CegarLoopForPetriNet]: 160 programPoint places, -8 predicate places. [2024-11-27 20:04:59,007 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 143 transitions, 297 flow [2024-11-27 20:04:59,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 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) [2024-11-27 20:04:59,007 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:59,008 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:04:59,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:04:59,008 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 26 more)] === [2024-11-27 20:04:59,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:59,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1696755347, now seen corresponding path program 1 times [2024-11-27 20:04:59,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:59,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754170397] [2024-11-27 20:04:59,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:59,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:59,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:04:59,064 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:04:59,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:04:59,135 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:04:59,136 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:04:59,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-27 20:04:59,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2024-11-27 20:04:59,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2024-11-27 20:04:59,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2024-11-27 20:04:59,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2024-11-27 20:04:59,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2024-11-27 20:04:59,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2024-11-27 20:04:59,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2024-11-27 20:04:59,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (20 of 29 remaining) [2024-11-27 20:04:59,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2024-11-27 20:04:59,146 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2024-11-27 20:04:59,147 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2024-11-27 20:04:59,148 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2024-11-27 20:04:59,149 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2024-11-27 20:04:59,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:04:59,149 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-27 20:04:59,156 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 20:04:59,157 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-27 20:04:59,246 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:04:59,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 243 places, 251 transitions, 512 flow [2024-11-27 20:04:59,376 INFO L124 PetriNetUnfolderBase]: 15/273 cut-off events. [2024-11-27 20:04:59,377 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-27 20:04:59,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 273 events. 15/273 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 514 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 182. Up to 6 conditions per place. [2024-11-27 20:04:59,382 INFO L82 GeneralOperation]: Start removeDead. Operand has 243 places, 251 transitions, 512 flow [2024-11-27 20:04:59,387 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 243 places, 251 transitions, 512 flow [2024-11-27 20:04:59,388 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:04:59,391 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;@3aab3c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:04:59,391 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-27 20:04:59,395 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:04:59,395 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-27 20:04:59,395 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:04:59,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:59,396 INFO L206 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] [2024-11-27 20:04:59,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:04:59,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:59,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1507606028, now seen corresponding path program 1 times [2024-11-27 20:04:59,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:59,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590911568] [2024-11-27 20:04:59,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:59,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:59,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:59,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590911568] [2024-11-27 20:04:59,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590911568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:59,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:59,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:04:59,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351634879] [2024-11-27 20:04:59,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:59,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:04:59,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:59,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:04:59,448 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:04:59,523 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 219 out of 251 [2024-11-27 20:04:59,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 251 transitions, 512 flow. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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) [2024-11-27 20:04:59,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:59,524 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 219 of 251 [2024-11-27 20:04:59,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:04:59,798 INFO L124 PetriNetUnfolderBase]: 61/807 cut-off events. [2024-11-27 20:04:59,798 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-11-27 20:04:59,805 INFO L83 FinitePrefix]: Finished finitePrefix Result has 937 conditions, 807 events. 61/807 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 4531 event pairs, 42 based on Foata normal form. 91/765 useless extension candidates. Maximal degree in co-relation 735. Up to 102 conditions per place. [2024-11-27 20:04:59,810 INFO L140 encePairwiseOnDemand]: 239/251 looper letters, 17 selfloop transitions, 2 changer transitions 1/232 dead transitions. [2024-11-27 20:04:59,810 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 232 transitions, 512 flow [2024-11-27 20:04:59,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:04:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:04:59,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 686 transitions. [2024-11-27 20:04:59,815 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9110225763612217 [2024-11-27 20:04:59,815 INFO L175 Difference]: Start difference. First operand has 243 places, 251 transitions, 512 flow. Second operand 3 states and 686 transitions. [2024-11-27 20:04:59,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 232 transitions, 512 flow [2024-11-27 20:04:59,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 232 transitions, 512 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-27 20:04:59,823 INFO L231 Difference]: Finished difference. Result has 234 places, 231 transitions, 476 flow [2024-11-27 20:04:59,824 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=230, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=476, PETRI_PLACES=234, PETRI_TRANSITIONS=231} [2024-11-27 20:04:59,824 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -9 predicate places. [2024-11-27 20:04:59,825 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 231 transitions, 476 flow [2024-11-27 20:04:59,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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) [2024-11-27 20:04:59,825 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:04:59,825 INFO L206 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] [2024-11-27 20:04:59,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:04:59,826 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:04:59,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:04:59,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2080163303, now seen corresponding path program 1 times [2024-11-27 20:04:59,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:04:59,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916289] [2024-11-27 20:04:59,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:04:59,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:04:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:04:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:04:59,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:04:59,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916289] [2024-11-27 20:04:59,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916289] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:04:59,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:04:59,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:04:59,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511008961] [2024-11-27 20:04:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:04:59,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:04:59,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:04:59,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:04:59,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:04:59,947 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 251 [2024-11-27 20:04:59,948 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 231 transitions, 476 flow. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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) [2024-11-27 20:04:59,948 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:04:59,948 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 251 [2024-11-27 20:04:59,949 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:00,117 INFO L124 PetriNetUnfolderBase]: 25/550 cut-off events. [2024-11-27 20:05:00,118 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-27 20:05:00,124 INFO L83 FinitePrefix]: Finished finitePrefix Result has 611 conditions, 550 events. 25/550 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2442 event pairs, 12 based on Foata normal form. 0/461 useless extension candidates. Maximal degree in co-relation 577. Up to 39 conditions per place. [2024-11-27 20:05:00,128 INFO L140 encePairwiseOnDemand]: 248/251 looper letters, 14 selfloop transitions, 2 changer transitions 0/230 dead transitions. [2024-11-27 20:05:00,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 230 transitions, 506 flow [2024-11-27 20:05:00,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:00,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 683 transitions. [2024-11-27 20:05:00,132 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9070385126162018 [2024-11-27 20:05:00,133 INFO L175 Difference]: Start difference. First operand has 234 places, 231 transitions, 476 flow. Second operand 3 states and 683 transitions. [2024-11-27 20:05:00,136 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 230 transitions, 506 flow [2024-11-27 20:05:00,138 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 230 transitions, 502 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:00,145 INFO L231 Difference]: Finished difference. Result has 232 places, 230 transitions, 474 flow [2024-11-27 20:05:00,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=230, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=474, PETRI_PLACES=232, PETRI_TRANSITIONS=230} [2024-11-27 20:05:00,148 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -11 predicate places. [2024-11-27 20:05:00,149 INFO L471 AbstractCegarLoop]: Abstraction has has 232 places, 230 transitions, 474 flow [2024-11-27 20:05:00,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 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) [2024-11-27 20:05:00,150 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:00,150 INFO L206 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] [2024-11-27 20:05:00,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:05:00,151 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:05:00,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:00,152 INFO L85 PathProgramCache]: Analyzing trace with hash 64989235, now seen corresponding path program 1 times [2024-11-27 20:05:00,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:00,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74101996] [2024-11-27 20:05:00,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:00,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:00,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:00,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74101996] [2024-11-27 20:05:00,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74101996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:00,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:00,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:00,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417725310] [2024-11-27 20:05:00,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:00,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:00,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:00,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:00,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:00,258 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 251 [2024-11-27 20:05:00,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 230 transitions, 474 flow. Second operand has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2024-11-27 20:05:00,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:00,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 251 [2024-11-27 20:05:00,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:00,469 INFO L124 PetriNetUnfolderBase]: 39/747 cut-off events. [2024-11-27 20:05:00,469 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-27 20:05:00,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 828 conditions, 747 events. 39/747 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 4137 event pairs, 20 based on Foata normal form. 0/631 useless extension candidates. Maximal degree in co-relation 786. Up to 56 conditions per place. [2024-11-27 20:05:00,480 INFO L140 encePairwiseOnDemand]: 245/251 looper letters, 16 selfloop transitions, 1 changer transitions 0/225 dead transitions. [2024-11-27 20:05:00,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 225 transitions, 498 flow [2024-11-27 20:05:00,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:00,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 676 transitions. [2024-11-27 20:05:00,483 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.897742363877822 [2024-11-27 20:05:00,483 INFO L175 Difference]: Start difference. First operand has 232 places, 230 transitions, 474 flow. Second operand 3 states and 676 transitions. [2024-11-27 20:05:00,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 225 transitions, 498 flow [2024-11-27 20:05:00,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 225 transitions, 494 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:00,491 INFO L231 Difference]: Finished difference. Result has 227 places, 225 transitions, 462 flow [2024-11-27 20:05:00,492 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=225, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=224, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=462, PETRI_PLACES=227, PETRI_TRANSITIONS=225} [2024-11-27 20:05:00,492 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2024-11-27 20:05:00,494 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 225 transitions, 462 flow [2024-11-27 20:05:00,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.0) internal successors, (657), 3 states have internal predecessors, (657), 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) [2024-11-27 20:05:00,495 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:00,495 INFO L206 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] [2024-11-27 20:05:00,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:05:00,495 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:05:00,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:00,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1421254112, now seen corresponding path program 1 times [2024-11-27 20:05:00,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:00,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031319096] [2024-11-27 20:05:00,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:00,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:00,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:00,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031319096] [2024-11-27 20:05:00,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031319096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:00,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:00,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:00,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516872177] [2024-11-27 20:05:00,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:00,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:00,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:00,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:00,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 221 out of 251 [2024-11-27 20:05:00,671 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 225 transitions, 462 flow. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 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) [2024-11-27 20:05:00,671 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:00,671 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 221 of 251 [2024-11-27 20:05:00,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:00,886 INFO L124 PetriNetUnfolderBase]: 47/706 cut-off events. [2024-11-27 20:05:00,886 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-27 20:05:00,890 INFO L83 FinitePrefix]: Finished finitePrefix Result has 809 conditions, 706 events. 47/706 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 3538 event pairs, 30 based on Foata normal form. 0/598 useless extension candidates. Maximal degree in co-relation 767. Up to 76 conditions per place. [2024-11-27 20:05:00,895 INFO L140 encePairwiseOnDemand]: 248/251 looper letters, 15 selfloop transitions, 2 changer transitions 0/224 dead transitions. [2024-11-27 20:05:00,895 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 224 transitions, 494 flow [2024-11-27 20:05:00,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:00,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 681 transitions. [2024-11-27 20:05:00,899 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9043824701195219 [2024-11-27 20:05:00,899 INFO L175 Difference]: Start difference. First operand has 227 places, 225 transitions, 462 flow. Second operand 3 states and 681 transitions. [2024-11-27 20:05:00,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 224 transitions, 494 flow [2024-11-27 20:05:00,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 224 transitions, 493 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:05:00,906 INFO L231 Difference]: Finished difference. Result has 227 places, 224 transitions, 463 flow [2024-11-27 20:05:00,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=222, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=463, PETRI_PLACES=227, PETRI_TRANSITIONS=224} [2024-11-27 20:05:00,908 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -16 predicate places. [2024-11-27 20:05:00,908 INFO L471 AbstractCegarLoop]: Abstraction has has 227 places, 224 transitions, 463 flow [2024-11-27 20:05:00,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 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) [2024-11-27 20:05:00,909 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:00,909 INFO L206 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] [2024-11-27 20:05:00,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:05:00,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:05:00,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:00,910 INFO L85 PathProgramCache]: Analyzing trace with hash -834377843, now seen corresponding path program 1 times [2024-11-27 20:05:00,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:00,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639589490] [2024-11-27 20:05:00,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:00,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:01,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:01,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639589490] [2024-11-27 20:05:01,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639589490] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:01,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:01,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:01,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765600399] [2024-11-27 20:05:01,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:01,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:01,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:01,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:01,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:01,086 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 251 [2024-11-27 20:05:01,087 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 224 transitions, 463 flow. Second operand has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-11-27 20:05:01,087 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:01,087 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 251 [2024-11-27 20:05:01,087 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:01,506 INFO L124 PetriNetUnfolderBase]: 164/2093 cut-off events. [2024-11-27 20:05:01,507 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2024-11-27 20:05:01,516 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2423 conditions, 2093 events. 164/2093 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 17295 event pairs, 57 based on Foata normal form. 0/1789 useless extension candidates. Maximal degree in co-relation 2381. Up to 204 conditions per place. [2024-11-27 20:05:01,528 INFO L140 encePairwiseOnDemand]: 231/251 looper letters, 32 selfloop transitions, 14 changer transitions 0/243 dead transitions. [2024-11-27 20:05:01,528 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 243 transitions, 598 flow [2024-11-27 20:05:01,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:01,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:01,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 691 transitions. [2024-11-27 20:05:01,531 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9176626826029216 [2024-11-27 20:05:01,531 INFO L175 Difference]: Start difference. First operand has 227 places, 224 transitions, 463 flow. Second operand 3 states and 691 transitions. [2024-11-27 20:05:01,531 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 243 transitions, 598 flow [2024-11-27 20:05:01,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 243 transitions, 594 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:01,538 INFO L231 Difference]: Finished difference. Result has 229 places, 238 transitions, 583 flow [2024-11-27 20:05:01,538 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=583, PETRI_PLACES=229, PETRI_TRANSITIONS=238} [2024-11-27 20:05:01,541 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -14 predicate places. [2024-11-27 20:05:01,541 INFO L471 AbstractCegarLoop]: Abstraction has has 229 places, 238 transitions, 583 flow [2024-11-27 20:05:01,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 214.66666666666666) internal successors, (644), 3 states have internal predecessors, (644), 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) [2024-11-27 20:05:01,542 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:01,542 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:01,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:05:01,544 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:05:01,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2138242935, now seen corresponding path program 1 times [2024-11-27 20:05:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:01,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811445546] [2024-11-27 20:05:01,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:01,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:01,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:01,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:01,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811445546] [2024-11-27 20:05:01,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811445546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:01,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:01,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:05:01,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144556183] [2024-11-27 20:05:01,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:01,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:01,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:01,748 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:01,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:01,778 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 220 out of 251 [2024-11-27 20:05:01,780 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 238 transitions, 583 flow. Second operand has 5 states, 5 states have (on average 222.4) internal successors, (1112), 5 states have internal predecessors, (1112), 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) [2024-11-27 20:05:01,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:01,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 220 of 251 [2024-11-27 20:05:01,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:02,202 INFO L124 PetriNetUnfolderBase]: 99/1990 cut-off events. [2024-11-27 20:05:02,202 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-27 20:05:02,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2263 conditions, 1990 events. 99/1990 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 16339 event pairs, 41 based on Foata normal form. 1/1702 useless extension candidates. Maximal degree in co-relation 2220. Up to 120 conditions per place. [2024-11-27 20:05:02,221 INFO L140 encePairwiseOnDemand]: 247/251 looper letters, 17 selfloop transitions, 0 changer transitions 4/241 dead transitions. [2024-11-27 20:05:02,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 233 places, 241 transitions, 631 flow [2024-11-27 20:05:02,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:02,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:05:02,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1122 transitions. [2024-11-27 20:05:02,280 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8940239043824701 [2024-11-27 20:05:02,280 INFO L175 Difference]: Start difference. First operand has 229 places, 238 transitions, 583 flow. Second operand 5 states and 1122 transitions. [2024-11-27 20:05:02,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 233 places, 241 transitions, 631 flow [2024-11-27 20:05:02,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 241 transitions, 603 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:02,296 INFO L231 Difference]: Finished difference. Result has 234 places, 237 transitions, 559 flow [2024-11-27 20:05:02,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=251, PETRI_DIFFERENCE_MINUEND_FLOW=555, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=238, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=559, PETRI_PLACES=234, PETRI_TRANSITIONS=237} [2024-11-27 20:05:02,297 INFO L279 CegarLoopForPetriNet]: 243 programPoint places, -9 predicate places. [2024-11-27 20:05:02,298 INFO L471 AbstractCegarLoop]: Abstraction has has 234 places, 237 transitions, 559 flow [2024-11-27 20:05:02,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 222.4) internal successors, (1112), 5 states have internal predecessors, (1112), 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) [2024-11-27 20:05:02,299 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:02,299 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:02,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:05:02,299 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 37 more)] === [2024-11-27 20:05:02,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:02,301 INFO L85 PathProgramCache]: Analyzing trace with hash 545926308, now seen corresponding path program 1 times [2024-11-27 20:05:02,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:02,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828832408] [2024-11-27 20:05:02,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:02,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:02,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:05:02,335 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:05:02,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:05:02,378 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:05:02,379 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:05:02,379 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-27 20:05:02,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (38 of 40 remaining) [2024-11-27 20:05:02,379 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (37 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (36 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (35 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (34 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (33 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (32 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (31 of 40 remaining) [2024-11-27 20:05:02,380 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (30 of 40 remaining) [2024-11-27 20:05:02,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (29 of 40 remaining) [2024-11-27 20:05:02,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (28 of 40 remaining) [2024-11-27 20:05:02,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (27 of 40 remaining) [2024-11-27 20:05:02,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (26 of 40 remaining) [2024-11-27 20:05:02,381 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (25 of 40 remaining) [2024-11-27 20:05:02,383 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (24 of 40 remaining) [2024-11-27 20:05:02,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (23 of 40 remaining) [2024-11-27 20:05:02,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (22 of 40 remaining) [2024-11-27 20:05:02,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (21 of 40 remaining) [2024-11-27 20:05:02,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (20 of 40 remaining) [2024-11-27 20:05:02,385 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (19 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (18 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (16 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (15 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (14 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (13 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (12 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (11 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (10 of 40 remaining) [2024-11-27 20:05:02,386 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (9 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (8 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (7 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (5 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (4 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (3 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (2 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (1 of 40 remaining) [2024-11-27 20:05:02,387 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (0 of 40 remaining) [2024-11-27 20:05:02,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:05:02,387 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:02,389 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 20:05:02,389 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-27 20:05:02,502 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:05:02,511 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 326 places, 337 transitions, 692 flow [2024-11-27 20:05:02,603 INFO L124 PetriNetUnfolderBase]: 21/371 cut-off events. [2024-11-27 20:05:02,603 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-27 20:05:02,607 INFO L83 FinitePrefix]: Finished finitePrefix Result has 384 conditions, 371 events. 21/371 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1033 event pairs, 0 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 277. Up to 8 conditions per place. [2024-11-27 20:05:02,607 INFO L82 GeneralOperation]: Start removeDead. Operand has 326 places, 337 transitions, 692 flow [2024-11-27 20:05:02,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 326 places, 337 transitions, 692 flow [2024-11-27 20:05:02,613 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:02,614 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;@3aab3c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:02,614 INFO L334 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2024-11-27 20:05:02,617 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:05:02,617 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-27 20:05:02,617 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:05:02,617 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:02,617 INFO L206 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] [2024-11-27 20:05:02,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:02,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:02,618 INFO L85 PathProgramCache]: Analyzing trace with hash 853902813, now seen corresponding path program 1 times [2024-11-27 20:05:02,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:02,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6133299] [2024-11-27 20:05:02,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:02,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:02,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:02,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6133299] [2024-11-27 20:05:02,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6133299] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:02,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:02,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:02,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820273323] [2024-11-27 20:05:02,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:02,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:02,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:02,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:02,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:02,761 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 337 [2024-11-27 20:05:02,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 337 transitions, 692 flow. Second operand has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 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) [2024-11-27 20:05:02,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:02,764 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 337 [2024-11-27 20:05:02,764 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:04,014 INFO L124 PetriNetUnfolderBase]: 763/5681 cut-off events. [2024-11-27 20:05:04,015 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2024-11-27 20:05:04,056 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6939 conditions, 5681 events. 763/5681 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 187. Compared 60117 event pairs, 630 based on Foata normal form. 701/5451 useless extension candidates. Maximal degree in co-relation 5717. Up to 1033 conditions per place. [2024-11-27 20:05:04,106 INFO L140 encePairwiseOnDemand]: 322/337 looper letters, 24 selfloop transitions, 2 changer transitions 1/313 dead transitions. [2024-11-27 20:05:04,107 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 313 transitions, 696 flow [2024-11-27 20:05:04,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:04,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:04,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-27 20:05:04,110 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9109792284866469 [2024-11-27 20:05:04,110 INFO L175 Difference]: Start difference. First operand has 326 places, 337 transitions, 692 flow. Second operand 3 states and 921 transitions. [2024-11-27 20:05:04,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 313 transitions, 696 flow [2024-11-27 20:05:04,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 315 places, 313 transitions, 694 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-27 20:05:04,118 INFO L231 Difference]: Finished difference. Result has 315 places, 312 transitions, 644 flow [2024-11-27 20:05:04,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=642, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=313, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=644, PETRI_PLACES=315, PETRI_TRANSITIONS=312} [2024-11-27 20:05:04,121 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -11 predicate places. [2024-11-27 20:05:04,122 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 312 transitions, 644 flow [2024-11-27 20:05:04,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.3333333333333) internal successors, (886), 3 states have internal predecessors, (886), 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) [2024-11-27 20:05:04,123 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:04,123 INFO L206 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] [2024-11-27 20:05:04,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-27 20:05:04,123 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:04,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:04,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1315678183, now seen corresponding path program 1 times [2024-11-27 20:05:04,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:04,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258645558] [2024-11-27 20:05:04,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:04,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:04,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:04,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258645558] [2024-11-27 20:05:04,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258645558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:04,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:04,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:04,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735496849] [2024-11-27 20:05:04,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:04,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:04,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:04,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:04,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:04,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 300 out of 337 [2024-11-27 20:05:04,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 312 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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) [2024-11-27 20:05:04,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:04,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 300 of 337 [2024-11-27 20:05:04,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:04,717 INFO L124 PetriNetUnfolderBase]: 163/2232 cut-off events. [2024-11-27 20:05:04,717 INFO L125 PetriNetUnfolderBase]: For 64/64 co-relation queries the response was YES. [2024-11-27 20:05:04,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2502 conditions, 2232 events. 163/2232 cut-off events. For 64/64 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 18955 event pairs, 108 based on Foata normal form. 0/1849 useless extension candidates. Maximal degree in co-relation 2467. Up to 199 conditions per place. [2024-11-27 20:05:04,755 INFO L140 encePairwiseOnDemand]: 334/337 looper letters, 18 selfloop transitions, 2 changer transitions 0/311 dead transitions. [2024-11-27 20:05:04,755 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 311 transitions, 682 flow [2024-11-27 20:05:04,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:04,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:04,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 921 transitions. [2024-11-27 20:05:04,758 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9109792284866469 [2024-11-27 20:05:04,758 INFO L175 Difference]: Start difference. First operand has 315 places, 312 transitions, 644 flow. Second operand 3 states and 921 transitions. [2024-11-27 20:05:04,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 311 transitions, 682 flow [2024-11-27 20:05:04,762 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 311 transitions, 678 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:04,766 INFO L231 Difference]: Finished difference. Result has 313 places, 311 transitions, 642 flow [2024-11-27 20:05:04,767 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=638, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=311, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=309, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=642, PETRI_PLACES=313, PETRI_TRANSITIONS=311} [2024-11-27 20:05:04,769 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -13 predicate places. [2024-11-27 20:05:04,769 INFO L471 AbstractCegarLoop]: Abstraction has has 313 places, 311 transitions, 642 flow [2024-11-27 20:05:04,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 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) [2024-11-27 20:05:04,770 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:04,770 INFO L206 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] [2024-11-27 20:05:04,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:05:04,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:04,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:04,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1621874291, now seen corresponding path program 1 times [2024-11-27 20:05:04,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:04,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368048462] [2024-11-27 20:05:04,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:04,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:04,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:04,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:04,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368048462] [2024-11-27 20:05:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368048462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:04,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:04,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:04,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619698013] [2024-11-27 20:05:04,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:04,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:04,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:04,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:04,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:04,871 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 337 [2024-11-27 20:05:04,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 311 transitions, 642 flow. Second operand has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 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) [2024-11-27 20:05:04,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:04,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 337 [2024-11-27 20:05:04,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:05,641 INFO L124 PetriNetUnfolderBase]: 325/3996 cut-off events. [2024-11-27 20:05:05,641 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-27 20:05:05,671 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4478 conditions, 3996 events. 325/3996 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 114. Compared 40794 event pairs, 220 based on Foata normal form. 0/3339 useless extension candidates. Maximal degree in co-relation 4435. Up to 381 conditions per place. [2024-11-27 20:05:05,695 INFO L140 encePairwiseOnDemand]: 330/337 looper letters, 21 selfloop transitions, 1 changer transitions 0/305 dead transitions. [2024-11-27 20:05:05,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 305 transitions, 674 flow [2024-11-27 20:05:05,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 910 transitions. [2024-11-27 20:05:05,699 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9000989119683481 [2024-11-27 20:05:05,699 INFO L175 Difference]: Start difference. First operand has 313 places, 311 transitions, 642 flow. Second operand 3 states and 910 transitions. [2024-11-27 20:05:05,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 305 transitions, 674 flow [2024-11-27 20:05:05,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 305 transitions, 670 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:05,707 INFO L231 Difference]: Finished difference. Result has 307 places, 305 transitions, 628 flow [2024-11-27 20:05:05,708 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=305, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=304, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=628, PETRI_PLACES=307, PETRI_TRANSITIONS=305} [2024-11-27 20:05:05,708 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -19 predicate places. [2024-11-27 20:05:05,709 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 305 transitions, 628 flow [2024-11-27 20:05:05,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 295.0) internal successors, (885), 3 states have internal predecessors, (885), 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) [2024-11-27 20:05:05,710 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:05,710 INFO L206 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] [2024-11-27 20:05:05,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 20:05:05,710 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:05,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:05,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1003912864, now seen corresponding path program 1 times [2024-11-27 20:05:05,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:05,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091528639] [2024-11-27 20:05:05,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:05,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:05,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:05,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091528639] [2024-11-27 20:05:05,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091528639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:05,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:05,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:05,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603567554] [2024-11-27 20:05:05,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:05,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:05,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:05,779 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:05,779 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:05,863 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 337 [2024-11-27 20:05:05,865 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 305 transitions, 628 flow. Second operand has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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) [2024-11-27 20:05:05,865 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:05,865 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 337 [2024-11-27 20:05:05,865 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:06,855 INFO L124 PetriNetUnfolderBase]: 493/4259 cut-off events. [2024-11-27 20:05:06,856 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-27 20:05:06,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5047 conditions, 4259 events. 493/4259 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 40858 event pairs, 390 based on Foata normal form. 0/3568 useless extension candidates. Maximal degree in co-relation 5004. Up to 652 conditions per place. [2024-11-27 20:05:06,921 INFO L140 encePairwiseOnDemand]: 334/337 looper letters, 21 selfloop transitions, 2 changer transitions 0/304 dead transitions. [2024-11-27 20:05:06,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 304 transitions, 672 flow [2024-11-27 20:05:06,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:06,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:06,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 915 transitions. [2024-11-27 20:05:06,925 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9050445103857567 [2024-11-27 20:05:06,926 INFO L175 Difference]: Start difference. First operand has 307 places, 305 transitions, 628 flow. Second operand 3 states and 915 transitions. [2024-11-27 20:05:06,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 304 transitions, 672 flow [2024-11-27 20:05:06,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 304 transitions, 671 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:05:06,933 INFO L231 Difference]: Finished difference. Result has 307 places, 304 transitions, 629 flow [2024-11-27 20:05:06,933 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=302, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=629, PETRI_PLACES=307, PETRI_TRANSITIONS=304} [2024-11-27 20:05:06,934 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -19 predicate places. [2024-11-27 20:05:06,934 INFO L471 AbstractCegarLoop]: Abstraction has has 307 places, 304 transitions, 629 flow [2024-11-27 20:05:06,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 298.3333333333333) internal successors, (895), 3 states have internal predecessors, (895), 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) [2024-11-27 20:05:06,935 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:06,935 INFO L206 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] [2024-11-27 20:05:06,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:05:06,936 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:06,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:06,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1476376628, now seen corresponding path program 1 times [2024-11-27 20:05:06,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:06,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745605626] [2024-11-27 20:05:06,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:06,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:07,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:07,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:07,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745605626] [2024-11-27 20:05:07,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745605626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:07,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:07,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:07,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519751206] [2024-11-27 20:05:07,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:07,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:07,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:07,023 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:07,023 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:07,101 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 282 out of 337 [2024-11-27 20:05:07,103 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 307 places, 304 transitions, 629 flow. Second operand has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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) [2024-11-27 20:05:07,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:07,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 282 of 337 [2024-11-27 20:05:07,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:11,202 INFO L124 PetriNetUnfolderBase]: 4201/31328 cut-off events. [2024-11-27 20:05:11,202 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-11-27 20:05:11,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37787 conditions, 31328 events. 4201/31328 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 735. Compared 462570 event pairs, 1667 based on Foata normal form. 0/26528 useless extension candidates. Maximal degree in co-relation 37744. Up to 4132 conditions per place. [2024-11-27 20:05:11,503 INFO L140 encePairwiseOnDemand]: 307/337 looper letters, 48 selfloop transitions, 21 changer transitions 0/333 dead transitions. [2024-11-27 20:05:11,503 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 309 places, 333 transitions, 835 flow [2024-11-27 20:05:11,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:11,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:11,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2024-11-27 20:05:11,506 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.913946587537092 [2024-11-27 20:05:11,506 INFO L175 Difference]: Start difference. First operand has 307 places, 304 transitions, 629 flow. Second operand 3 states and 924 transitions. [2024-11-27 20:05:11,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 309 places, 333 transitions, 835 flow [2024-11-27 20:05:11,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 307 places, 333 transitions, 831 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:11,515 INFO L231 Difference]: Finished difference. Result has 309 places, 325 transitions, 811 flow [2024-11-27 20:05:11,516 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=625, PETRI_DIFFERENCE_MINUEND_PLACES=305, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=283, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=811, PETRI_PLACES=309, PETRI_TRANSITIONS=325} [2024-11-27 20:05:11,517 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -17 predicate places. [2024-11-27 20:05:11,518 INFO L471 AbstractCegarLoop]: Abstraction has has 309 places, 325 transitions, 811 flow [2024-11-27 20:05:11,519 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.6666666666667) internal successors, (851), 3 states have internal predecessors, (851), 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) [2024-11-27 20:05:11,519 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:11,519 INFO L206 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] [2024-11-27 20:05:11,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:05:11,519 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:11,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:11,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1390000224, now seen corresponding path program 1 times [2024-11-27 20:05:11,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:11,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926673074] [2024-11-27 20:05:11,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:11,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:11,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926673074] [2024-11-27 20:05:11,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926673074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:11,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:11,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-27 20:05:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608589334] [2024-11-27 20:05:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:11,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:05:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:11,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:05:11,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:05:11,787 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 305 out of 337 [2024-11-27 20:05:11,789 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 309 places, 325 transitions, 811 flow. Second operand has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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) [2024-11-27 20:05:11,789 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:11,789 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 305 of 337 [2024-11-27 20:05:11,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:13,567 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1067] L1041-6-->L1045-2: Formula: (and (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0) (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0)))) InVars {~#lock~0.base=|v_~#lock~0.base_11|, #pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][152], [337#(= |#race~len~0| 0), 346#true, 189#L1061-3true, 323#true, Black: 341#true, 269#L1045-2true, 325#true, 153#L1045-2true, 343#(= |#race~next~0| 0), 327#true, 267#L1043true]) [2024-11-27 20:05:13,567 INFO L294 olderBase$Statistics]: this new event has 122 ancestors and is cut-off event [2024-11-27 20:05:13,568 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-27 20:05:13,568 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-27 20:05:13,568 INFO L297 olderBase$Statistics]: existing Event has 111 ancestors and is cut-off event [2024-11-27 20:05:14,597 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1067] L1041-6-->L1045-2: Formula: (and (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0) (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0)))) InVars {~#lock~0.base=|v_~#lock~0.base_11|, #pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][153], [337#(= |#race~len~0| 0), 189#L1061-3true, 323#true, 269#L1045-2true, 349#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), Black: 343#(= |#race~next~0| 0), 325#true, 153#L1045-2true, 239#L1045-2true, 327#true, 341#true]) [2024-11-27 20:05:14,598 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2024-11-27 20:05:14,598 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2024-11-27 20:05:14,598 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2024-11-27 20:05:14,598 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2024-11-27 20:05:14,726 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1067] L1041-6-->L1045-2: Formula: (and (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0) (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0)))) InVars {~#lock~0.base=|v_~#lock~0.base_11|, #pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][152], [337#(= |#race~len~0| 0), 346#true, 189#L1061-3true, 323#true, 269#L1045-2true, Black: 343#(= |#race~next~0| 0), 325#true, 153#L1045-2true, 327#true, 267#L1043true, 341#true]) [2024-11-27 20:05:14,726 INFO L294 olderBase$Statistics]: this new event has 133 ancestors and is cut-off event [2024-11-27 20:05:14,726 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-27 20:05:14,726 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-27 20:05:14,727 INFO L297 olderBase$Statistics]: existing Event has 122 ancestors and is cut-off event [2024-11-27 20:05:15,056 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1067] L1041-6-->L1045-2: Formula: (and (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0) (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0)))) InVars {~#lock~0.base=|v_~#lock~0.base_11|, #pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][152], [337#(= |#race~len~0| 0), 346#true, 189#L1061-3true, 323#true, 107#L1043-3true, Black: 343#(= |#race~next~0| 0), 269#L1045-2true, 325#true, 153#L1045-2true, 341#true, 327#true]) [2024-11-27 20:05:15,056 INFO L294 olderBase$Statistics]: this new event has 136 ancestors and is cut-off event [2024-11-27 20:05:15,056 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2024-11-27 20:05:15,056 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2024-11-27 20:05:15,056 INFO L297 olderBase$Statistics]: existing Event has 125 ancestors and is cut-off event [2024-11-27 20:05:16,691 INFO L124 PetriNetUnfolderBase]: 3148/31373 cut-off events. [2024-11-27 20:05:16,692 INFO L125 PetriNetUnfolderBase]: For 856/864 co-relation queries the response was YES. [2024-11-27 20:05:16,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38075 conditions, 31373 events. 3148/31373 cut-off events. For 856/864 co-relation queries the response was YES. Maximal size of possible extension queue 724. Compared 473941 event pairs, 1451 based on Foata normal form. 59/26880 useless extension candidates. Maximal degree in co-relation 38032. Up to 2767 conditions per place. [2024-11-27 20:05:17,026 INFO L140 encePairwiseOnDemand]: 333/337 looper letters, 27 selfloop transitions, 3 changer transitions 0/338 dead transitions. [2024-11-27 20:05:17,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 338 transitions, 917 flow [2024-11-27 20:05:17,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:05:17,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-27 20:05:17,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1251 transitions. [2024-11-27 20:05:17,031 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9280415430267063 [2024-11-27 20:05:17,031 INFO L175 Difference]: Start difference. First operand has 309 places, 325 transitions, 811 flow. Second operand 4 states and 1251 transitions. [2024-11-27 20:05:17,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 338 transitions, 917 flow [2024-11-27 20:05:17,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 338 transitions, 875 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:17,076 INFO L231 Difference]: Finished difference. Result has 311 places, 325 transitions, 779 flow [2024-11-27 20:05:17,076 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=307, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=322, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=779, PETRI_PLACES=311, PETRI_TRANSITIONS=325} [2024-11-27 20:05:17,077 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -15 predicate places. [2024-11-27 20:05:17,077 INFO L471 AbstractCegarLoop]: Abstraction has has 311 places, 325 transitions, 779 flow [2024-11-27 20:05:17,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 307.0) internal successors, (1228), 4 states have internal predecessors, (1228), 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) [2024-11-27 20:05:17,078 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:17,078 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:17,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-27 20:05:17,079 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:17,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:17,079 INFO L85 PathProgramCache]: Analyzing trace with hash -751666536, now seen corresponding path program 1 times [2024-11-27 20:05:17,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:17,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381000357] [2024-11-27 20:05:17,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:17,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:17,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:17,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:17,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:17,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381000357] [2024-11-27 20:05:17,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381000357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:17,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:17,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 20:05:17,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233231012] [2024-11-27 20:05:17,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:17,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 20:05:17,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:17,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 20:05:17,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:05:17,249 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 337 [2024-11-27 20:05:17,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 325 transitions, 779 flow. Second operand has 5 states, 5 states have (on average 301.6) internal successors, (1508), 5 states have internal predecessors, (1508), 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) [2024-11-27 20:05:17,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:17,251 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 337 [2024-11-27 20:05:17,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:19,552 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1067] L1041-6-->L1045-2: Formula: (and (= |v_thrThread3of3ForFork0_#t~ret6#1_1| 0) (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0)))) InVars {~#lock~0.base=|v_~#lock~0.base_11|, #pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread3of3ForFork0_#t~ret6#1=|v_thrThread3of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread3of3ForFork0_#t~ret6#1][144], [337#(= |#race~len~0| 0), 346#true, 189#L1061-3true, 323#true, 288#L1043-6true, Black: 341#true, 269#L1045-2true, 351#true, 325#true, 153#L1045-2true, 327#true, Black: 349#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0))]) [2024-11-27 20:05:19,552 INFO L294 olderBase$Statistics]: this new event has 131 ancestors and is cut-off event [2024-11-27 20:05:19,552 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2024-11-27 20:05:19,552 INFO L297 olderBase$Statistics]: existing Event has 120 ancestors and is cut-off event [2024-11-27 20:05:19,553 INFO L297 olderBase$Statistics]: existing Event has 131 ancestors and is cut-off event [2024-11-27 20:05:19,636 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1152] L1041-6-->L1045-2: Formula: (and (= |v_#pthreadsMutex_9| (store |v_#pthreadsMutex_10| |v_~#lock~0.base_11| (store (select |v_#pthreadsMutex_10| |v_~#lock~0.base_11|) |v_~#lock~0.offset_11| 0))) (= |v_thrThread2of3ForFork0_#t~ret6#1_1| 0)) InVars {~#lock~0.base=|v_~#lock~0.base_11|, #pthreadsMutex=|v_#pthreadsMutex_10|, ~#lock~0.offset=|v_~#lock~0.offset_11|} OutVars{#pthreadsMutex=|v_#pthreadsMutex_9|, ~#lock~0.offset=|v_~#lock~0.offset_11|, ~#lock~0.base=|v_~#lock~0.base_11|, thrThread2of3ForFork0_#t~ret6#1=|v_thrThread2of3ForFork0_#t~ret6#1_1|} AuxVars[] AssignedVars[#pthreadsMutex, thrThread2of3ForFork0_#t~ret6#1][115], [337#(= |#race~len~0| 0), 189#L1061-3true, 323#true, Black: 343#(= |#race~next~0| 0), 349#(and (= |thrThread1of3ForFork0_~end~0#1| 0) (= |thrThread1of3ForFork0_~c~0#1| 0)), 351#true, 269#L1045-2true, 325#true, 239#L1045-2true, 153#L1045-2true, 327#true]) [2024-11-27 20:05:19,636 INFO L294 olderBase$Statistics]: this new event has 134 ancestors and is cut-off event [2024-11-27 20:05:19,636 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2024-11-27 20:05:19,636 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2024-11-27 20:05:19,636 INFO L297 olderBase$Statistics]: existing Event has 123 ancestors and is cut-off event [2024-11-27 20:05:21,413 INFO L124 PetriNetUnfolderBase]: 2233/24088 cut-off events. [2024-11-27 20:05:21,413 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-27 20:05:21,538 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28133 conditions, 24088 events. 2233/24088 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 568. Compared 353958 event pairs, 1151 based on Foata normal form. 1/20427 useless extension candidates. Maximal degree in co-relation 28088. Up to 2300 conditions per place. [2024-11-27 20:05:21,664 INFO L140 encePairwiseOnDemand]: 333/337 looper letters, 20 selfloop transitions, 0 changer transitions 4/328 dead transitions. [2024-11-27 20:05:21,664 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 328 transitions, 833 flow [2024-11-27 20:05:21,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 20:05:21,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-27 20:05:21,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1520 transitions. [2024-11-27 20:05:21,670 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9020771513353115 [2024-11-27 20:05:21,670 INFO L175 Difference]: Start difference. First operand has 311 places, 325 transitions, 779 flow. Second operand 5 states and 1520 transitions. [2024-11-27 20:05:21,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 328 transitions, 833 flow [2024-11-27 20:05:21,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 328 transitions, 827 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-27 20:05:21,679 INFO L231 Difference]: Finished difference. Result has 315 places, 324 transitions, 777 flow [2024-11-27 20:05:21,680 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=337, PETRI_DIFFERENCE_MINUEND_FLOW=773, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=777, PETRI_PLACES=315, PETRI_TRANSITIONS=324} [2024-11-27 20:05:21,680 INFO L279 CegarLoopForPetriNet]: 326 programPoint places, -11 predicate places. [2024-11-27 20:05:21,681 INFO L471 AbstractCegarLoop]: Abstraction has has 315 places, 324 transitions, 777 flow [2024-11-27 20:05:21,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 301.6) internal successors, (1508), 5 states have internal predecessors, (1508), 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) [2024-11-27 20:05:21,681 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:21,682 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:21,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-27 20:05:21,682 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 48 more)] === [2024-11-27 20:05:21,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:21,683 INFO L85 PathProgramCache]: Analyzing trace with hash 860824502, now seen corresponding path program 1 times [2024-11-27 20:05:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:21,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699804318] [2024-11-27 20:05:21,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:21,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:05:21,728 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:05:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:05:21,778 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 20:05:21,778 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 20:05:21,779 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2024-11-27 20:05:21,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (49 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (48 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (47 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (46 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (45 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (44 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (43 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (42 of 51 remaining) [2024-11-27 20:05:21,780 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (41 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (40 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (39 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (38 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (37 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (36 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (35 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (34 of 51 remaining) [2024-11-27 20:05:21,781 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (33 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (32 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (31 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (30 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (29 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (28 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (27 of 51 remaining) [2024-11-27 20:05:21,782 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (26 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (25 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (24 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (23 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (22 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (21 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (20 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (19 of 51 remaining) [2024-11-27 20:05:21,783 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (18 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (17 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (16 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (15 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (14 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (13 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (12 of 51 remaining) [2024-11-27 20:05:21,784 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (11 of 51 remaining) [2024-11-27 20:05:21,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr0ASSERT_VIOLATIONDATA_RACE (10 of 51 remaining) [2024-11-27 20:05:21,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr1ASSERT_VIOLATIONDATA_RACE (9 of 51 remaining) [2024-11-27 20:05:21,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr2ASSERT_VIOLATIONDATA_RACE (8 of 51 remaining) [2024-11-27 20:05:21,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr3ASSERT_VIOLATIONDATA_RACE (7 of 51 remaining) [2024-11-27 20:05:21,785 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr5ASSERT_VIOLATIONDATA_RACE (6 of 51 remaining) [2024-11-27 20:05:21,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr4ASSERT_VIOLATIONDATA_RACE (5 of 51 remaining) [2024-11-27 20:05:21,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr6ASSERT_VIOLATIONDATA_RACE (4 of 51 remaining) [2024-11-27 20:05:21,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr7ASSERT_VIOLATIONDATA_RACE (3 of 51 remaining) [2024-11-27 20:05:21,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr8ASSERT_VIOLATIONDATA_RACE (2 of 51 remaining) [2024-11-27 20:05:21,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr9ASSERT_VIOLATIONDATA_RACE (1 of 51 remaining) [2024-11-27 20:05:21,786 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thrErr10ASSERT_VIOLATIONDATA_RACE (0 of 51 remaining) [2024-11-27 20:05:21,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 20:05:21,787 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:05:21,787 WARN L246 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-27 20:05:21,787 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-27 20:05:21,912 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-27 20:05:21,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 409 places, 423 transitions, 874 flow [2024-11-27 20:05:22,065 INFO L124 PetriNetUnfolderBase]: 27/469 cut-off events. [2024-11-27 20:05:22,066 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-27 20:05:22,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 488 conditions, 469 events. 27/469 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1600 event pairs, 0 based on Foata normal form. 0/387 useless extension candidates. Maximal degree in co-relation 379. Up to 10 conditions per place. [2024-11-27 20:05:22,073 INFO L82 GeneralOperation]: Start removeDead. Operand has 409 places, 423 transitions, 874 flow [2024-11-27 20:05:22,082 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 409 places, 423 transitions, 874 flow [2024-11-27 20:05:22,084 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:05:22,088 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;@3aab3c4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:05:22,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2024-11-27 20:05:22,091 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-27 20:05:22,091 INFO L124 PetriNetUnfolderBase]: 0/24 cut-off events. [2024-11-27 20:05:22,091 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-27 20:05:22,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:22,091 INFO L206 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] [2024-11-27 20:05:22,092 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-27 20:05:22,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:22,093 INFO L85 PathProgramCache]: Analyzing trace with hash 861785348, now seen corresponding path program 1 times [2024-11-27 20:05:22,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:22,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358265206] [2024-11-27 20:05:22,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:22,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:22,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:22,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:22,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358265206] [2024-11-27 20:05:22,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358265206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:22,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:22,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:22,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512538235] [2024-11-27 20:05:22,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:22,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:22,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:22,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:22,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:22,254 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 423 [2024-11-27 20:05:22,256 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 423 transitions, 874 flow. Second operand has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 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) [2024-11-27 20:05:22,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:22,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 423 [2024-11-27 20:05:22,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:29,447 INFO L124 PetriNetUnfolderBase]: 7737/41866 cut-off events. [2024-11-27 20:05:29,447 INFO L125 PetriNetUnfolderBase]: For 3752/3752 co-relation queries the response was YES. [2024-11-27 20:05:29,773 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53415 conditions, 41866 events. 7737/41866 cut-off events. For 3752/3752 co-relation queries the response was YES. Maximal size of possible extension queue 1152. Compared 611770 event pairs, 6804 based on Foata normal form. 5588/40923 useless extension candidates. Maximal degree in co-relation 44089. Up to 9608 conditions per place. [2024-11-27 20:05:30,102 INFO L140 encePairwiseOnDemand]: 405/423 looper letters, 31 selfloop transitions, 2 changer transitions 1/394 dead transitions. [2024-11-27 20:05:30,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 394 transitions, 882 flow [2024-11-27 20:05:30,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:30,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1156 transitions. [2024-11-27 20:05:30,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9109535066981875 [2024-11-27 20:05:30,106 INFO L175 Difference]: Start difference. First operand has 409 places, 423 transitions, 874 flow. Second operand 3 states and 1156 transitions. [2024-11-27 20:05:30,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 394 transitions, 882 flow [2024-11-27 20:05:30,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 396 places, 394 transitions, 876 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-27 20:05:30,114 INFO L231 Difference]: Finished difference. Result has 396 places, 393 transitions, 812 flow [2024-11-27 20:05:30,116 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=810, PETRI_DIFFERENCE_MINUEND_PLACES=394, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=394, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=392, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=812, PETRI_PLACES=396, PETRI_TRANSITIONS=393} [2024-11-27 20:05:30,117 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -13 predicate places. [2024-11-27 20:05:30,117 INFO L471 AbstractCegarLoop]: Abstraction has has 396 places, 393 transitions, 812 flow [2024-11-27 20:05:30,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.3333333333333) internal successors, (1111), 3 states have internal predecessors, (1111), 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) [2024-11-27 20:05:30,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:30,118 INFO L206 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] [2024-11-27 20:05:30,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-27 20:05:30,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-27 20:05:30,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash -268388889, now seen corresponding path program 1 times [2024-11-27 20:05:30,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:30,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960628262] [2024-11-27 20:05:30,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:30,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:30,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:30,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:30,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960628262] [2024-11-27 20:05:30,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960628262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:30,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:30,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:30,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381212214] [2024-11-27 20:05:30,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:30,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:30,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:30,163 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:30,163 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:30,217 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 378 out of 423 [2024-11-27 20:05:30,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 396 places, 393 transitions, 812 flow. Second operand has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2024-11-27 20:05:30,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:30,219 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 378 of 423 [2024-11-27 20:05:30,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:32,504 INFO L124 PetriNetUnfolderBase]: 909/9194 cut-off events. [2024-11-27 20:05:32,504 INFO L125 PetriNetUnfolderBase]: For 259/259 co-relation queries the response was YES. [2024-11-27 20:05:32,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10489 conditions, 9194 events. 909/9194 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 238. Compared 110239 event pairs, 684 based on Foata normal form. 0/7621 useless extension candidates. Maximal degree in co-relation 10453. Up to 1031 conditions per place. [2024-11-27 20:05:32,595 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 22 selfloop transitions, 2 changer transitions 0/392 dead transitions. [2024-11-27 20:05:32,595 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 396 places, 392 transitions, 858 flow [2024-11-27 20:05:32,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:32,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1159 transitions. [2024-11-27 20:05:32,599 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.913317572892041 [2024-11-27 20:05:32,599 INFO L175 Difference]: Start difference. First operand has 396 places, 393 transitions, 812 flow. Second operand 3 states and 1159 transitions. [2024-11-27 20:05:32,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 396 places, 392 transitions, 858 flow [2024-11-27 20:05:32,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 394 places, 392 transitions, 854 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:32,606 INFO L231 Difference]: Finished difference. Result has 394 places, 392 transitions, 810 flow [2024-11-27 20:05:32,607 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=806, PETRI_DIFFERENCE_MINUEND_PLACES=392, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=392, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=390, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=810, PETRI_PLACES=394, PETRI_TRANSITIONS=392} [2024-11-27 20:05:32,607 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -15 predicate places. [2024-11-27 20:05:32,607 INFO L471 AbstractCegarLoop]: Abstraction has has 394 places, 392 transitions, 810 flow [2024-11-27 20:05:32,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 379.3333333333333) internal successors, (1138), 3 states have internal predecessors, (1138), 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) [2024-11-27 20:05:32,608 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:32,608 INFO L206 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] [2024-11-27 20:05:32,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-27 20:05:32,609 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-27 20:05:32,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:32,609 INFO L85 PathProgramCache]: Analyzing trace with hash -170879437, now seen corresponding path program 1 times [2024-11-27 20:05:32,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:32,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588536441] [2024-11-27 20:05:32,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:32,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:32,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:32,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:32,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588536441] [2024-11-27 20:05:32,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588536441] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:32,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:32,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:32,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806167154] [2024-11-27 20:05:32,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:32,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:32,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:32,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:32,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:32,677 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 370 out of 423 [2024-11-27 20:05:32,678 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 394 places, 392 transitions, 810 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 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) [2024-11-27 20:05:32,678 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:32,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 370 of 423 [2024-11-27 20:05:32,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:35,936 INFO L124 PetriNetUnfolderBase]: 2261/20895 cut-off events. [2024-11-27 20:05:35,937 INFO L125 PetriNetUnfolderBase]: For 473/473 co-relation queries the response was YES. [2024-11-27 20:05:36,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23878 conditions, 20895 events. 2261/20895 cut-off events. For 473/473 co-relation queries the response was YES. Maximal size of possible extension queue 543. Compared 295838 event pairs, 1720 based on Foata normal form. 0/17497 useless extension candidates. Maximal degree in co-relation 23834. Up to 2506 conditions per place. [2024-11-27 20:05:36,216 INFO L140 encePairwiseOnDemand]: 415/423 looper letters, 26 selfloop transitions, 1 changer transitions 0/385 dead transitions. [2024-11-27 20:05:36,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 389 places, 385 transitions, 850 flow [2024-11-27 20:05:36,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:36,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1144 transitions. [2024-11-27 20:05:36,220 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9014972419227738 [2024-11-27 20:05:36,220 INFO L175 Difference]: Start difference. First operand has 394 places, 392 transitions, 810 flow. Second operand 3 states and 1144 transitions. [2024-11-27 20:05:36,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 389 places, 385 transitions, 850 flow [2024-11-27 20:05:36,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 385 transitions, 846 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-27 20:05:36,226 INFO L231 Difference]: Finished difference. Result has 387 places, 385 transitions, 794 flow [2024-11-27 20:05:36,227 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=792, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=384, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=794, PETRI_PLACES=387, PETRI_TRANSITIONS=385} [2024-11-27 20:05:36,227 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -22 predicate places. [2024-11-27 20:05:36,227 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 385 transitions, 794 flow [2024-11-27 20:05:36,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 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) [2024-11-27 20:05:36,228 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:36,228 INFO L206 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] [2024-11-27 20:05:36,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-27 20:05:36,229 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-27 20:05:36,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1525135328, now seen corresponding path program 1 times [2024-11-27 20:05:36,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:36,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143128922] [2024-11-27 20:05:36,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:36,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:36,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:36,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:36,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143128922] [2024-11-27 20:05:36,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143128922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:36,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:36,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:36,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693301799] [2024-11-27 20:05:36,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:36,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:36,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:36,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:36,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:36,378 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 423 [2024-11-27 20:05:36,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 385 transitions, 794 flow. Second operand has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-11-27 20:05:36,380 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:36,380 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 423 [2024-11-27 20:05:36,380 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-27 20:05:41,938 INFO L124 PetriNetUnfolderBase]: 4251/26676 cut-off events. [2024-11-27 20:05:41,939 INFO L125 PetriNetUnfolderBase]: For 781/781 co-relation queries the response was YES. [2024-11-27 20:05:42,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32649 conditions, 26676 events. 4251/26676 cut-off events. For 781/781 co-relation queries the response was YES. Maximal size of possible extension queue 583. Compared 358625 event pairs, 3630 based on Foata normal form. 0/22471 useless extension candidates. Maximal degree in co-relation 32605. Up to 5188 conditions per place. [2024-11-27 20:05:42,239 INFO L140 encePairwiseOnDemand]: 420/423 looper letters, 27 selfloop transitions, 2 changer transitions 0/384 dead transitions. [2024-11-27 20:05:42,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 384 transitions, 850 flow [2024-11-27 20:05:42,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:05:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-27 20:05:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1149 transitions. [2024-11-27 20:05:42,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9054373522458629 [2024-11-27 20:05:42,242 INFO L175 Difference]: Start difference. First operand has 387 places, 385 transitions, 794 flow. Second operand 3 states and 1149 transitions. [2024-11-27 20:05:42,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 384 transitions, 850 flow [2024-11-27 20:05:42,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 384 transitions, 849 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-27 20:05:42,249 INFO L231 Difference]: Finished difference. Result has 387 places, 384 transitions, 795 flow [2024-11-27 20:05:42,250 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=423, PETRI_DIFFERENCE_MINUEND_FLOW=791, PETRI_DIFFERENCE_MINUEND_PLACES=385, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=382, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=795, PETRI_PLACES=387, PETRI_TRANSITIONS=384} [2024-11-27 20:05:42,251 INFO L279 CegarLoopForPetriNet]: 409 programPoint places, -22 predicate places. [2024-11-27 20:05:42,251 INFO L471 AbstractCegarLoop]: Abstraction has has 387 places, 384 transitions, 795 flow [2024-11-27 20:05:42,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.3333333333333) internal successors, (1123), 3 states have internal predecessors, (1123), 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) [2024-11-27 20:05:42,251 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-27 20:05:42,252 INFO L206 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] [2024-11-27 20:05:42,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-27 20:05:42,252 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2024-11-27 20:05:42,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:05:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash -126806970, now seen corresponding path program 1 times [2024-11-27 20:05:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:05:42,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967101015] [2024-11-27 20:05:42,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:05:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:05:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:05:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:05:42,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:05:42,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967101015] [2024-11-27 20:05:42,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967101015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:05:42,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:05:42,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:05:42,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935487931] [2024-11-27 20:05:42,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:05:42,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:05:42,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:05:42,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:05:42,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:05:42,388 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 423 [2024-11-27 20:05:42,389 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 387 places, 384 transitions, 795 flow. Second operand has 3 states, 3 states have (on average 352.6666666666667) internal successors, (1058), 3 states have internal predecessors, (1058), 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) [2024-11-27 20:05:42,389 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-27 20:05:42,389 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 423 [2024-11-27 20:05:42,389 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand