./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/03_incdec.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/03_incdec.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl --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 c1c717c54832d7b18d55a1459c6f740661389c67176a032001ce64e3c282b955 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:14:07,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:14:07,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-12 02:14:07,598 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:14:07,599 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:14:07,629 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:14:07,630 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:14:07,630 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:14:07,631 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:14:07,632 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:14:07,633 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:14:07,633 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:14:07,634 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:14:07,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:14:07,635 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:14:07,635 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:14:07,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:14:07,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:14:07,637 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:14:07,637 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:14:07,638 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:14:07,640 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:14:07,640 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 02:14:07,641 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:14:07,641 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:14:07,642 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:14:07,642 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:14:07,643 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:14:07,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:14:07,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:14:07,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:07,644 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:14:07,644 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:14:07,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:14:07,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:14:07,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:14:07,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:14:07,650 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:14:07,650 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:14:07,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:14:07,651 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:14:07,651 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1c717c54832d7b18d55a1459c6f740661389c67176a032001ce64e3c282b955 [2023-11-12 02:14:07,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:14:08,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:14:08,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:14:08,004 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:14:08,005 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:14:08,006 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/pthread-ext/03_incdec.i [2023-11-12 02:14:11,206 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:14:11,468 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:14:11,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/sv-benchmarks/c/pthread-ext/03_incdec.i [2023-11-12 02:14:11,491 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/data/b0605e7b9/0b9445500e9a452280fed66c5fba6a37/FLAGdc010acdc [2023-11-12 02:14:11,508 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/data/b0605e7b9/0b9445500e9a452280fed66c5fba6a37 [2023-11-12 02:14:11,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:14:11,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:14:11,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:11,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:14:11,526 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:14:11,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:11" (1/1) ... [2023-11-12 02:14:11,527 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68f072c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:11, skipping insertion in model container [2023-11-12 02:14:11,528 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:14:11" (1/1) ... [2023-11-12 02:14:11,588 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:14:12,052 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:12,066 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:14:12,111 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:14:12,156 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:14:12,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12 WrapperNode [2023-11-12 02:14:12,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:14:12,158 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:12,158 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:14:12,158 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:14:12,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,181 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,214 INFO L138 Inliner]: procedures = 172, calls = 26, calls flagged for inlining = 18, calls inlined = 26, statements flattened = 241 [2023-11-12 02:14:12,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:14:12,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:14:12,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:14:12,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:14:12,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,230 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,231 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,261 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:14:12,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:14:12,281 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:14:12,281 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:14:12,282 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (1/1) ... [2023-11-12 02:14:12,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:14:12,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:14:12,317 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:14:12,331 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf98a342-f020-4019-a5b8-1229a584ed78/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:14:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-12 02:14:12,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-12 02:14:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:14:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:14:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:14:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:14:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:14:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:14:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:14:12,365 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 02:14:12,502 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:14:12,504 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:14:12,971 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:14:13,314 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:14:13,316 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 02:14:13,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:13 BoogieIcfgContainer [2023-11-12 02:14:13,321 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:14:13,327 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:14:13,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:14:13,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:14:13,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:14:11" (1/3) ... [2023-11-12 02:14:13,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724927fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:14:13, skipping insertion in model container [2023-11-12 02:14:13,334 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:14:12" (2/3) ... [2023-11-12 02:14:13,335 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724927fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:14:13, skipping insertion in model container [2023-11-12 02:14:13,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:14:13" (3/3) ... [2023-11-12 02:14:13,337 INFO L112 eAbstractionObserver]: Analyzing ICFG 03_incdec.i [2023-11-12 02:14:13,352 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 02:14:13,361 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:14:13,362 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-12 02:14:13,362 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 02:14:13,464 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:14:13,521 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 167 transitions, 338 flow [2023-11-12 02:14:13,592 INFO L124 PetriNetUnfolderBase]: 11/178 cut-off events. [2023-11-12 02:14:13,593 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:14:13,600 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 178 events. 11/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 452 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 152. Up to 4 conditions per place. [2023-11-12 02:14:13,600 INFO L82 GeneralOperation]: Start removeDead. Operand has 160 places, 167 transitions, 338 flow [2023-11-12 02:14:13,612 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 167 transitions, 338 flow [2023-11-12 02:14:13,616 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:14:13,641 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 167 transitions, 338 flow [2023-11-12 02:14:13,644 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 167 transitions, 338 flow [2023-11-12 02:14:13,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 167 transitions, 338 flow [2023-11-12 02:14:13,699 INFO L124 PetriNetUnfolderBase]: 11/178 cut-off events. [2023-11-12 02:14:13,699 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:14:13,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 178 events. 11/178 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 452 event pairs, 0 based on Foata normal form. 0/133 useless extension candidates. Maximal degree in co-relation 152. Up to 4 conditions per place. [2023-11-12 02:14:13,706 INFO L119 LiptonReduction]: Number of co-enabled transitions 3892 [2023-11-12 02:14:22,055 INFO L134 LiptonReduction]: Checked pairs total: 4195 [2023-11-12 02:14:22,055 INFO L136 LiptonReduction]: Total number of compositions: 252 [2023-11-12 02:14:22,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:14:22,095 INFO L357 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, mHoare=true, 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;@6e708a37, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:14:22,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2023-11-12 02:14:22,102 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:14:22,102 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:14:22,103 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:14:22,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:22,104 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:14:22,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err16ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-12 02:14:22,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:22,111 INFO L85 PathProgramCache]: Analyzing trace with hash 34983948, now seen corresponding path program 1 times [2023-11-12 02:14:22,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:22,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700564861] [2023-11-12 02:14:22,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:22,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:22,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:22,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:22,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700564861] [2023-11-12 02:14:22,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700564861] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:22,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:22,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:14:22,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278578944] [2023-11-12 02:14:22,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:22,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:14:22,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:22,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:14:22,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:14:22,446 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 128 out of 419 [2023-11-12 02:14:22,452 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 39 transitions, 82 flow. Second operand has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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) [2023-11-12 02:14:22,452 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:22,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 128 of 419 [2023-11-12 02:14:22,454 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:14:22,493 INFO L124 PetriNetUnfolderBase]: 2/12 cut-off events. [2023-11-12 02:14:22,494 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:14:22,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27 conditions, 12 events. 2/12 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 2 based on Foata normal form. 0/12 useless extension candidates. Maximal degree in co-relation 14. Up to 11 conditions per place. [2023-11-12 02:14:22,495 INFO L140 encePairwiseOnDemand]: 386/419 looper letters, 5 selfloop transitions, 0 changer transitions 0/6 dead transitions. [2023-11-12 02:14:22,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 10 places, 6 transitions, 26 flow [2023-11-12 02:14:22,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:14:22,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:14:22,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 294 transitions. [2023-11-12 02:14:22,526 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.35083532219570407 [2023-11-12 02:14:22,527 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 294 transitions. [2023-11-12 02:14:22,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 294 transitions. [2023-11-12 02:14:22,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:14:22,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 294 transitions. [2023-11-12 02:14:22,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 147.0) internal successors, (294), 2 states have internal predecessors, (294), 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) [2023-11-12 02:14:22,550 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 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) [2023-11-12 02:14:22,551 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 419.0) internal successors, (1257), 3 states have internal predecessors, (1257), 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) [2023-11-12 02:14:22,554 INFO L175 Difference]: Start difference. First operand has 42 places, 39 transitions, 82 flow. Second operand 2 states and 294 transitions. [2023-11-12 02:14:22,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 10 places, 6 transitions, 26 flow [2023-11-12 02:14:22,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 10 places, 6 transitions, 26 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:14:22,560 INFO L231 Difference]: Finished difference. Result has 10 places, 6 transitions, 16 flow [2023-11-12 02:14:22,562 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=419, PETRI_DIFFERENCE_MINUEND_FLOW=16, PETRI_DIFFERENCE_MINUEND_PLACES=9, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=16, PETRI_PLACES=10, PETRI_TRANSITIONS=6} [2023-11-12 02:14:22,568 INFO L281 CegarLoopForPetriNet]: 42 programPoint places, -32 predicate places. [2023-11-12 02:14:22,568 INFO L495 AbstractCegarLoop]: Abstraction has has 10 places, 6 transitions, 16 flow [2023-11-12 02:14:22,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.0) internal successors, (260), 2 states have internal predecessors, (260), 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) [2023-11-12 02:14:22,569 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:22,570 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-11-12 02:14:22,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:14:22,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 61 more)] === [2023-11-12 02:14:22,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:22,572 INFO L85 PathProgramCache]: Analyzing trace with hash -740261137, now seen corresponding path program 1 times [2023-11-12 02:14:22,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:22,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250830424] [2023-11-12 02:14:22,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:22,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:22,637 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:22,702 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:22,702 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:14:22,705 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (64 of 65 remaining) [2023-11-12 02:14:22,707 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 65 remaining) [2023-11-12 02:14:22,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 65 remaining) [2023-11-12 02:14:22,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 65 remaining) [2023-11-12 02:14:22,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 65 remaining) [2023-11-12 02:14:22,708 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (59 of 65 remaining) [2023-11-12 02:14:22,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 65 remaining) [2023-11-12 02:14:22,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (57 of 65 remaining) [2023-11-12 02:14:22,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 65 remaining) [2023-11-12 02:14:22,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (55 of 65 remaining) [2023-11-12 02:14:22,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (54 of 65 remaining) [2023-11-12 02:14:22,710 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (53 of 65 remaining) [2023-11-12 02:14:22,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (52 of 65 remaining) [2023-11-12 02:14:22,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 65 remaining) [2023-11-12 02:14:22,711 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (50 of 65 remaining) [2023-11-12 02:14:22,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 65 remaining) [2023-11-12 02:14:22,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (48 of 65 remaining) [2023-11-12 02:14:22,712 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (47 of 65 remaining) [2023-11-12 02:14:22,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 65 remaining) [2023-11-12 02:14:22,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (45 of 65 remaining) [2023-11-12 02:14:22,713 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (44 of 65 remaining) [2023-11-12 02:14:22,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (43 of 65 remaining) [2023-11-12 02:14:22,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (42 of 65 remaining) [2023-11-12 02:14:22,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (41 of 65 remaining) [2023-11-12 02:14:22,714 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (40 of 65 remaining) [2023-11-12 02:14:22,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 65 remaining) [2023-11-12 02:14:22,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (38 of 65 remaining) [2023-11-12 02:14:22,715 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (37 of 65 remaining) [2023-11-12 02:14:22,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (36 of 65 remaining) [2023-11-12 02:14:22,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 65 remaining) [2023-11-12 02:14:22,716 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 65 remaining) [2023-11-12 02:14:22,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (33 of 65 remaining) [2023-11-12 02:14:22,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (32 of 65 remaining) [2023-11-12 02:14:22,717 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 65 remaining) [2023-11-12 02:14:22,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 65 remaining) [2023-11-12 02:14:22,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (29 of 65 remaining) [2023-11-12 02:14:22,718 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (28 of 65 remaining) [2023-11-12 02:14:22,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 65 remaining) [2023-11-12 02:14:22,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 65 remaining) [2023-11-12 02:14:22,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 65 remaining) [2023-11-12 02:14:22,719 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 65 remaining) [2023-11-12 02:14:22,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (23 of 65 remaining) [2023-11-12 02:14:22,720 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (22 of 65 remaining) [2023-11-12 02:14:22,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 65 remaining) [2023-11-12 02:14:22,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (20 of 65 remaining) [2023-11-12 02:14:22,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 65 remaining) [2023-11-12 02:14:22,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (18 of 65 remaining) [2023-11-12 02:14:22,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 65 remaining) [2023-11-12 02:14:22,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (16 of 65 remaining) [2023-11-12 02:14:22,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 65 remaining) [2023-11-12 02:14:22,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 65 remaining) [2023-11-12 02:14:22,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (13 of 65 remaining) [2023-11-12 02:14:22,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (12 of 65 remaining) [2023-11-12 02:14:22,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (11 of 65 remaining) [2023-11-12 02:14:22,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 65 remaining) [2023-11-12 02:14:22,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (9 of 65 remaining) [2023-11-12 02:14:22,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (8 of 65 remaining) [2023-11-12 02:14:22,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (7 of 65 remaining) [2023-11-12 02:14:22,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (6 of 65 remaining) [2023-11-12 02:14:22,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 65 remaining) [2023-11-12 02:14:22,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (4 of 65 remaining) [2023-11-12 02:14:22,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 65 remaining) [2023-11-12 02:14:22,726 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 65 remaining) [2023-11-12 02:14:22,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (1 of 65 remaining) [2023-11-12 02:14:22,727 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (0 of 65 remaining) [2023-11-12 02:14:22,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:14:22,728 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:14:22,731 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:14:22,731 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-12 02:14:22,792 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:14:22,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 307 transitions, 624 flow [2023-11-12 02:14:22,930 INFO L124 PetriNetUnfolderBase]: 21/331 cut-off events. [2023-11-12 02:14:22,931 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:14:22,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 331 events. 21/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1345 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 291. Up to 6 conditions per place. [2023-11-12 02:14:22,942 INFO L82 GeneralOperation]: Start removeDead. Operand has 293 places, 307 transitions, 624 flow [2023-11-12 02:14:22,951 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 293 places, 307 transitions, 624 flow [2023-11-12 02:14:22,951 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:14:22,951 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 293 places, 307 transitions, 624 flow [2023-11-12 02:14:22,952 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 293 places, 307 transitions, 624 flow [2023-11-12 02:14:22,952 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 293 places, 307 transitions, 624 flow [2023-11-12 02:14:23,029 INFO L124 PetriNetUnfolderBase]: 21/331 cut-off events. [2023-11-12 02:14:23,029 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-11-12 02:14:23,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 331 events. 21/331 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1345 event pairs, 0 based on Foata normal form. 0/243 useless extension candidates. Maximal degree in co-relation 291. Up to 6 conditions per place. [2023-11-12 02:14:23,069 INFO L119 LiptonReduction]: Number of co-enabled transitions 46704 [2023-11-12 02:14:27,790 INFO L134 LiptonReduction]: Checked pairs total: 224242 [2023-11-12 02:14:27,790 INFO L136 LiptonReduction]: Total number of compositions: 231 [2023-11-12 02:14:27,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:14:27,795 INFO L357 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, mHoare=true, 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;@6e708a37, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:14:27,795 INFO L358 AbstractCegarLoop]: Starting to check reachability of 97 error locations. [2023-11-12 02:14:27,797 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:14:27,797 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:14:27,797 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:14:27,797 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:27,798 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:14:27,798 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err16ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-11-12 02:14:27,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:27,799 INFO L85 PathProgramCache]: Analyzing trace with hash 57187136, now seen corresponding path program 1 times [2023-11-12 02:14:27,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:27,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083737356] [2023-11-12 02:14:27,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:27,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:27,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:27,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:27,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:27,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083737356] [2023-11-12 02:14:27,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083737356] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:27,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:27,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:14:27,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228954961] [2023-11-12 02:14:27,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:27,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:14:27,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:27,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:14:27,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:14:27,831 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 231 out of 538 [2023-11-12 02:14:27,832 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 172 transitions, 354 flow. Second operand has 2 states, 2 states have (on average 233.0) internal successors, (466), 2 states have internal predecessors, (466), 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) [2023-11-12 02:14:27,832 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:27,833 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 231 of 538 [2023-11-12 02:14:27,833 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:14:28,436 INFO L124 PetriNetUnfolderBase]: 1429/3494 cut-off events. [2023-11-12 02:14:28,437 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2023-11-12 02:14:28,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5741 conditions, 3494 events. 1429/3494 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 189. Compared 28411 event pairs, 1039 based on Foata normal form. 270/3067 useless extension candidates. Maximal degree in co-relation 2031. Up to 2188 conditions per place. [2023-11-12 02:14:28,469 INFO L140 encePairwiseOnDemand]: 497/538 looper letters, 50 selfloop transitions, 0 changer transitions 0/131 dead transitions. [2023-11-12 02:14:28,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 131 transitions, 372 flow [2023-11-12 02:14:28,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:14:28,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:14:28,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 553 transitions. [2023-11-12 02:14:28,474 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5139405204460966 [2023-11-12 02:14:28,474 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 553 transitions. [2023-11-12 02:14:28,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 553 transitions. [2023-11-12 02:14:28,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:14:28,475 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 553 transitions. [2023-11-12 02:14:28,477 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 276.5) internal successors, (553), 2 states have internal predecessors, (553), 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) [2023-11-12 02:14:28,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 538.0) internal successors, (1614), 3 states have internal predecessors, (1614), 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) [2023-11-12 02:14:28,485 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 538.0) internal successors, (1614), 3 states have internal predecessors, (1614), 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) [2023-11-12 02:14:28,485 INFO L175 Difference]: Start difference. First operand has 167 places, 172 transitions, 354 flow. Second operand 2 states and 553 transitions. [2023-11-12 02:14:28,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 131 transitions, 372 flow [2023-11-12 02:14:28,488 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 131 transitions, 372 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:14:28,492 INFO L231 Difference]: Finished difference. Result has 127 places, 131 transitions, 272 flow [2023-11-12 02:14:28,493 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=272, PETRI_PLACES=127, PETRI_TRANSITIONS=131} [2023-11-12 02:14:28,494 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -40 predicate places. [2023-11-12 02:14:28,494 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 131 transitions, 272 flow [2023-11-12 02:14:28,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 233.0) internal successors, (466), 2 states have internal predecessors, (466), 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) [2023-11-12 02:14:28,495 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:28,495 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:14:28,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:14:28,496 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-11-12 02:14:28,496 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:28,496 INFO L85 PathProgramCache]: Analyzing trace with hash -877688413, now seen corresponding path program 1 times [2023-11-12 02:14:28,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:28,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670197717] [2023-11-12 02:14:28,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:28,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:28,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:28,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:28,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670197717] [2023-11-12 02:14:28,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670197717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:28,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:28,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:14:28,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124697169] [2023-11-12 02:14:28,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:28,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:14:28,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:28,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:14:28,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:14:28,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 191 out of 538 [2023-11-12 02:14:28,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 131 transitions, 272 flow. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2023-11-12 02:14:28,705 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:28,705 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 191 of 538 [2023-11-12 02:14:28,705 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:14:30,246 INFO L124 PetriNetUnfolderBase]: 5720/11099 cut-off events. [2023-11-12 02:14:30,246 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2023-11-12 02:14:30,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20435 conditions, 11099 events. 5720/11099 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 94822 event pairs, 1906 based on Foata normal form. 0/9680 useless extension candidates. Maximal degree in co-relation 20430. Up to 5670 conditions per place. [2023-11-12 02:14:30,357 INFO L140 encePairwiseOnDemand]: 498/538 looper letters, 134 selfloop transitions, 28 changer transitions 0/205 dead transitions. [2023-11-12 02:14:30,357 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 205 transitions, 749 flow [2023-11-12 02:14:30,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:14:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-12 02:14:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 747 transitions. [2023-11-12 02:14:30,361 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4628252788104089 [2023-11-12 02:14:30,361 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 747 transitions. [2023-11-12 02:14:30,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 747 transitions. [2023-11-12 02:14:30,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:14:30,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 747 transitions. [2023-11-12 02:14:30,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 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) [2023-11-12 02:14:30,371 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 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) [2023-11-12 02:14:30,373 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 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) [2023-11-12 02:14:30,373 INFO L175 Difference]: Start difference. First operand has 127 places, 131 transitions, 272 flow. Second operand 3 states and 747 transitions. [2023-11-12 02:14:30,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 205 transitions, 749 flow [2023-11-12 02:14:30,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 205 transitions, 749 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-12 02:14:30,384 INFO L231 Difference]: Finished difference. Result has 131 places, 159 transitions, 520 flow [2023-11-12 02:14:30,385 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=520, PETRI_PLACES=131, PETRI_TRANSITIONS=159} [2023-11-12 02:14:30,388 INFO L281 CegarLoopForPetriNet]: 167 programPoint places, -36 predicate places. [2023-11-12 02:14:30,388 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 159 transitions, 520 flow [2023-11-12 02:14:30,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 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) [2023-11-12 02:14:30,389 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:30,389 INFO L208 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2023-11-12 02:14:30,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:14:30,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 93 more)] === [2023-11-12 02:14:30,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:30,390 INFO L85 PathProgramCache]: Analyzing trace with hash -392268410, now seen corresponding path program 1 times [2023-11-12 02:14:30,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:30,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371040930] [2023-11-12 02:14:30,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:30,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:30,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:14:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:14:30,462 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:14:30,463 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:14:30,463 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (96 of 97 remaining) [2023-11-12 02:14:30,467 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (95 of 97 remaining) [2023-11-12 02:14:30,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (94 of 97 remaining) [2023-11-12 02:14:30,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (93 of 97 remaining) [2023-11-12 02:14:30,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (92 of 97 remaining) [2023-11-12 02:14:30,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (91 of 97 remaining) [2023-11-12 02:14:30,468 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (90 of 97 remaining) [2023-11-12 02:14:30,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (89 of 97 remaining) [2023-11-12 02:14:30,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (88 of 97 remaining) [2023-11-12 02:14:30,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (87 of 97 remaining) [2023-11-12 02:14:30,469 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (86 of 97 remaining) [2023-11-12 02:14:30,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (85 of 97 remaining) [2023-11-12 02:14:30,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (84 of 97 remaining) [2023-11-12 02:14:30,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (83 of 97 remaining) [2023-11-12 02:14:30,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (82 of 97 remaining) [2023-11-12 02:14:30,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (81 of 97 remaining) [2023-11-12 02:14:30,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (80 of 97 remaining) [2023-11-12 02:14:30,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (79 of 97 remaining) [2023-11-12 02:14:30,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (78 of 97 remaining) [2023-11-12 02:14:30,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (77 of 97 remaining) [2023-11-12 02:14:30,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (76 of 97 remaining) [2023-11-12 02:14:30,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (75 of 97 remaining) [2023-11-12 02:14:30,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (74 of 97 remaining) [2023-11-12 02:14:30,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (73 of 97 remaining) [2023-11-12 02:14:30,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (72 of 97 remaining) [2023-11-12 02:14:30,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (71 of 97 remaining) [2023-11-12 02:14:30,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (70 of 97 remaining) [2023-11-12 02:14:30,473 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (69 of 97 remaining) [2023-11-12 02:14:30,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (68 of 97 remaining) [2023-11-12 02:14:30,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (67 of 97 remaining) [2023-11-12 02:14:30,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (66 of 97 remaining) [2023-11-12 02:14:30,474 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (65 of 97 remaining) [2023-11-12 02:14:30,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (64 of 97 remaining) [2023-11-12 02:14:30,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (63 of 97 remaining) [2023-11-12 02:14:30,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (62 of 97 remaining) [2023-11-12 02:14:30,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 97 remaining) [2023-11-12 02:14:30,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 97 remaining) [2023-11-12 02:14:30,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (59 of 97 remaining) [2023-11-12 02:14:30,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (58 of 97 remaining) [2023-11-12 02:14:30,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (57 of 97 remaining) [2023-11-12 02:14:30,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (56 of 97 remaining) [2023-11-12 02:14:30,476 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (55 of 97 remaining) [2023-11-12 02:14:30,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (54 of 97 remaining) [2023-11-12 02:14:30,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (53 of 97 remaining) [2023-11-12 02:14:30,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (52 of 97 remaining) [2023-11-12 02:14:30,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (51 of 97 remaining) [2023-11-12 02:14:30,477 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (50 of 97 remaining) [2023-11-12 02:14:30,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (49 of 97 remaining) [2023-11-12 02:14:30,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (48 of 97 remaining) [2023-11-12 02:14:30,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (47 of 97 remaining) [2023-11-12 02:14:30,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (46 of 97 remaining) [2023-11-12 02:14:30,478 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (45 of 97 remaining) [2023-11-12 02:14:30,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (44 of 97 remaining) [2023-11-12 02:14:30,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (43 of 97 remaining) [2023-11-12 02:14:30,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (42 of 97 remaining) [2023-11-12 02:14:30,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (41 of 97 remaining) [2023-11-12 02:14:30,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (40 of 97 remaining) [2023-11-12 02:14:30,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 97 remaining) [2023-11-12 02:14:30,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (38 of 97 remaining) [2023-11-12 02:14:30,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (37 of 97 remaining) [2023-11-12 02:14:30,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (36 of 97 remaining) [2023-11-12 02:14:30,480 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (35 of 97 remaining) [2023-11-12 02:14:30,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (34 of 97 remaining) [2023-11-12 02:14:30,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (33 of 97 remaining) [2023-11-12 02:14:30,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (32 of 97 remaining) [2023-11-12 02:14:30,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (31 of 97 remaining) [2023-11-12 02:14:30,481 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (30 of 97 remaining) [2023-11-12 02:14:30,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (29 of 97 remaining) [2023-11-12 02:14:30,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (28 of 97 remaining) [2023-11-12 02:14:30,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (27 of 97 remaining) [2023-11-12 02:14:30,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (26 of 97 remaining) [2023-11-12 02:14:30,482 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (25 of 97 remaining) [2023-11-12 02:14:30,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (24 of 97 remaining) [2023-11-12 02:14:30,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (23 of 97 remaining) [2023-11-12 02:14:30,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (22 of 97 remaining) [2023-11-12 02:14:30,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 97 remaining) [2023-11-12 02:14:30,483 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (20 of 97 remaining) [2023-11-12 02:14:30,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (19 of 97 remaining) [2023-11-12 02:14:30,484 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (18 of 97 remaining) [2023-11-12 02:14:30,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (17 of 97 remaining) [2023-11-12 02:14:30,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (16 of 97 remaining) [2023-11-12 02:14:30,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (15 of 97 remaining) [2023-11-12 02:14:30,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (14 of 97 remaining) [2023-11-12 02:14:30,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (13 of 97 remaining) [2023-11-12 02:14:30,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (12 of 97 remaining) [2023-11-12 02:14:30,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (11 of 97 remaining) [2023-11-12 02:14:30,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (10 of 97 remaining) [2023-11-12 02:14:30,493 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err26ASSERT_VIOLATIONDATA_RACE (9 of 97 remaining) [2023-11-12 02:14:30,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err27ASSERT_VIOLATIONDATA_RACE (8 of 97 remaining) [2023-11-12 02:14:30,495 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (7 of 97 remaining) [2023-11-12 02:14:30,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err28ASSERT_VIOLATIONDATA_RACE (6 of 97 remaining) [2023-11-12 02:14:30,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (5 of 97 remaining) [2023-11-12 02:14:30,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err29ASSERT_VIOLATIONDATA_RACE (4 of 97 remaining) [2023-11-12 02:14:30,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (3 of 97 remaining) [2023-11-12 02:14:30,496 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (2 of 97 remaining) [2023-11-12 02:14:30,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err30ASSERT_VIOLATIONDATA_RACE (1 of 97 remaining) [2023-11-12 02:14:30,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err31ASSERT_VIOLATIONDATA_RACE (0 of 97 remaining) [2023-11-12 02:14:30,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 02:14:30,497 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-12 02:14:30,498 WARN L234 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-12 02:14:30,498 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-11-12 02:14:30,602 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 02:14:30,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 447 transitions, 912 flow [2023-11-12 02:14:30,746 INFO L124 PetriNetUnfolderBase]: 31/484 cut-off events. [2023-11-12 02:14:30,747 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:14:30,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 31/484 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2378 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 430. Up to 8 conditions per place. [2023-11-12 02:14:30,763 INFO L82 GeneralOperation]: Start removeDead. Operand has 426 places, 447 transitions, 912 flow [2023-11-12 02:14:30,774 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 426 places, 447 transitions, 912 flow [2023-11-12 02:14:30,774 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-11-12 02:14:30,775 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 426 places, 447 transitions, 912 flow [2023-11-12 02:14:30,775 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 426 places, 447 transitions, 912 flow [2023-11-12 02:14:30,775 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 426 places, 447 transitions, 912 flow [2023-11-12 02:14:30,978 INFO L124 PetriNetUnfolderBase]: 31/484 cut-off events. [2023-11-12 02:14:30,978 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2023-11-12 02:14:30,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 31/484 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2378 event pairs, 0 based on Foata normal form. 0/353 useless extension candidates. Maximal degree in co-relation 430. Up to 8 conditions per place. [2023-11-12 02:14:31,037 INFO L119 LiptonReduction]: Number of co-enabled transitions 128436 [2023-11-12 02:14:37,507 INFO L134 LiptonReduction]: Checked pairs total: 646920 [2023-11-12 02:14:37,508 INFO L136 LiptonReduction]: Total number of compositions: 329 [2023-11-12 02:14:37,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:14:37,511 INFO L357 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, mHoare=true, 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;@6e708a37, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:14:37,511 INFO L358 AbstractCegarLoop]: Starting to check reachability of 129 error locations. [2023-11-12 02:14:37,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-12 02:14:37,513 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2023-11-12 02:14:37,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 02:14:37,513 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:37,514 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-11-12 02:14:37,514 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 125 more)] === [2023-11-12 02:14:37,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:37,514 INFO L85 PathProgramCache]: Analyzing trace with hash 85417773, now seen corresponding path program 1 times [2023-11-12 02:14:37,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:37,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869561738] [2023-11-12 02:14:37,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:37,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:37,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:37,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:37,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869561738] [2023-11-12 02:14:37,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869561738] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:37,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:37,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 02:14:37,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516172705] [2023-11-12 02:14:37,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:37,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:14:37,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:37,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:14:37,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:14:37,557 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 776 [2023-11-12 02:14:37,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 255 transitions, 528 flow. Second operand has 2 states, 2 states have (on average 336.0) internal successors, (672), 2 states have internal predecessors, (672), 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) [2023-11-12 02:14:37,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:37,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 776 [2023-11-12 02:14:37,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-12 02:14:47,376 INFO L124 PetriNetUnfolderBase]: 46863/83664 cut-off events. [2023-11-12 02:14:47,376 INFO L125 PetriNetUnfolderBase]: For 2347/2347 co-relation queries the response was YES. [2023-11-12 02:14:47,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147237 conditions, 83664 events. 46863/83664 cut-off events. For 2347/2347 co-relation queries the response was YES. Maximal size of possible extension queue 3310. Compared 859779 event pairs, 35263 based on Foata normal form. 6960/76373 useless extension candidates. Maximal degree in co-relation 23562. Up to 62066 conditions per place. [2023-11-12 02:14:48,233 INFO L140 encePairwiseOnDemand]: 715/776 looper letters, 75 selfloop transitions, 0 changer transitions 0/194 dead transitions. [2023-11-12 02:14:48,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 194 transitions, 556 flow [2023-11-12 02:14:48,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:14:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-11-12 02:14:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 804 transitions. [2023-11-12 02:14:48,239 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5180412371134021 [2023-11-12 02:14:48,240 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 804 transitions. [2023-11-12 02:14:48,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 804 transitions. [2023-11-12 02:14:48,241 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-12 02:14:48,241 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 804 transitions. [2023-11-12 02:14:48,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 402.0) internal successors, (804), 2 states have internal predecessors, (804), 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) [2023-11-12 02:14:48,249 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 776.0) internal successors, (2328), 3 states have internal predecessors, (2328), 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) [2023-11-12 02:14:48,251 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 776.0) internal successors, (2328), 3 states have internal predecessors, (2328), 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) [2023-11-12 02:14:48,251 INFO L175 Difference]: Start difference. First operand has 247 places, 255 transitions, 528 flow. Second operand 2 states and 804 transitions. [2023-11-12 02:14:48,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 194 transitions, 556 flow [2023-11-12 02:14:48,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 194 transitions, 554 flow, removed 1 selfloop flow, removed 0 redundant places. [2023-11-12 02:14:48,267 INFO L231 Difference]: Finished difference. Result has 187 places, 194 transitions, 404 flow [2023-11-12 02:14:48,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=776, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=404, PETRI_PLACES=187, PETRI_TRANSITIONS=194} [2023-11-12 02:14:48,272 INFO L281 CegarLoopForPetriNet]: 247 programPoint places, -60 predicate places. [2023-11-12 02:14:48,272 INFO L495 AbstractCegarLoop]: Abstraction has has 187 places, 194 transitions, 404 flow [2023-11-12 02:14:48,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 336.0) internal successors, (672), 2 states have internal predecessors, (672), 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) [2023-11-12 02:14:48,273 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-12 02:14:48,273 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 02:14:48,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 02:14:48,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err18ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err16ASSERT_VIOLATIONDATA_RACE, thr1Err17ASSERT_VIOLATIONDATA_RACE (and 125 more)] === [2023-11-12 02:14:48,274 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:14:48,275 INFO L85 PathProgramCache]: Analyzing trace with hash 482175541, now seen corresponding path program 1 times [2023-11-12 02:14:48,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:14:48,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400798211] [2023-11-12 02:14:48,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:14:48,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:14:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:14:48,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:14:48,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:14:48,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400798211] [2023-11-12 02:14:48,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400798211] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:14:48,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:14:48,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:14:48,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701855775] [2023-11-12 02:14:48,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:14:48,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:14:48,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:14:48,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:14:48,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:14:48,423 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 274 out of 776 [2023-11-12 02:14:48,425 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 194 transitions, 404 flow. Second operand has 3 states, 3 states have (on average 276.0) internal successors, (828), 3 states have internal predecessors, (828), 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) [2023-11-12 02:14:48,425 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-12 02:14:48,425 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 274 of 776 [2023-11-12 02:14:48,425 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand