./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/25_stack-race.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4fc63b2a 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_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/25_stack-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU --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 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:19:09,204 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:19:09,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-31 22:19:09,296 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:19:09,297 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:19:09,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:19:09,334 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:19:09,334 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:19:09,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:19:09,337 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:19:09,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:19:09,338 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:19:09,339 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:19:09,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:19:09,342 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:19:09,342 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:19:09,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:19:09,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:19:09,343 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:19:09,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:19:09,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:19:09,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:19:09,349 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-31 22:19:09,349 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:19:09,349 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:19:09,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:19:09,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:19:09,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:19:09,361 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:19:09,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:19:09,362 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:19:09,363 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:09,364 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:19:09,364 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:19:09,364 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:19:09,365 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:19:09,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:19:09,365 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:19:09,366 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:19:09,366 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:19:09,366 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:19:09,367 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_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4272d82e4e32dc4af1661c2cd99f5af7e9487f266698e80f4586c30581d39fa9 [2024-10-31 22:19:09,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:19:09,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:19:09,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:19:09,733 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:19:09,734 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:19:09,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/pthread-ext/25_stack-race.i Unable to find full path for "g++" [2024-10-31 22:19:11,840 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:19:12,135 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:19:12,136 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/sv-benchmarks/c/pthread-ext/25_stack-race.i [2024-10-31 22:19:12,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/data/a839ad219/99de05e03cae489e97b93fcb3c5860bb/FLAG25833edc1 [2024-10-31 22:19:12,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/data/a839ad219/99de05e03cae489e97b93fcb3c5860bb [2024-10-31 22:19:12,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:19:12,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:19:12,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:12,188 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:19:12,194 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:19:12,197 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:12,198 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@486aeb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12, skipping insertion in model container [2024-10-31 22:19:12,198 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:12,259 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:19:12,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:12,804 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:19:12,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:19:12,923 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:19:12,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12 WrapperNode [2024-10-31 22:19:12,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:19:12,925 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:12,925 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:19:12,925 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:19:12,933 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:12,954 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,014 INFO L138 Inliner]: procedures = 176, calls = 32, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 358 [2024-10-31 22:19:13,014 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:19:13,015 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:19:13,015 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:19:13,015 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:19:13,027 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,037 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,037 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,075 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,077 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,081 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:19:13,082 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:19:13,082 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:19:13,082 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:19:13,083 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (1/1) ... [2024-10-31 22:19:13,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:19:13,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:19:13,141 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:19:13,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d72d680e-d94b-4a90-a5b7-1d9a3c5353fa/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:19:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-31 22:19:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2024-10-31 22:19:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2024-10-31 22:19:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-31 22:19:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:19:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-31 22:19:13,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:19:13,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:19:13,184 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-31 22:19:13,337 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:19:13,339 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:19:14,124 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-31 22:19:14,125 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:19:14,586 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:19:14,587 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-31 22:19:14,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:14 BoogieIcfgContainer [2024-10-31 22:19:14,589 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:19:14,591 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:19:14,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:19:14,596 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:19:14,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:19:12" (1/3) ... [2024-10-31 22:19:14,598 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337d3ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:14, skipping insertion in model container [2024-10-31 22:19:14,599 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:19:12" (2/3) ... [2024-10-31 22:19:14,600 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@337d3ef0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:19:14, skipping insertion in model container [2024-10-31 22:19:14,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:19:14" (3/3) ... [2024-10-31 22:19:14,602 INFO L112 eAbstractionObserver]: Analyzing ICFG 25_stack-race.i [2024-10-31 22:19:14,624 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:19:14,624 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2024-10-31 22:19:14,624 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-31 22:19:14,730 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:19:14,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 220 places, 224 transitions, 452 flow [2024-10-31 22:19:15,002 INFO L124 PetriNetUnfolderBase]: 8/233 cut-off events. [2024-10-31 22:19:15,002 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:15,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 233 events. 8/233 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 228 event pairs, 0 based on Foata normal form. 0/197 useless extension candidates. Maximal degree in co-relation 139. Up to 4 conditions per place. [2024-10-31 22:19:15,012 INFO L82 GeneralOperation]: Start removeDead. Operand has 220 places, 224 transitions, 452 flow [2024-10-31 22:19:15,019 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 220 places, 224 transitions, 452 flow [2024-10-31 22:19:15,034 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:15,044 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b03cf09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:15,045 INFO L334 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-10-31 22:19:15,075 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:19:15,077 INFO L124 PetriNetUnfolderBase]: 1/95 cut-off events. [2024-10-31 22:19:15,078 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:15,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:15,079 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:15,079 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:19:15,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:15,085 INFO L85 PathProgramCache]: Analyzing trace with hash 758633451, now seen corresponding path program 1 times [2024-10-31 22:19:15,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:15,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83761466] [2024-10-31 22:19:15,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:15,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:15,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:16,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:16,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83761466] [2024-10-31 22:19:16,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83761466] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:16,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:16,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:19:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267293772] [2024-10-31 22:19:16,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:16,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:19:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:16,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:19:16,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:16,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 196 out of 224 [2024-10-31 22:19:16,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 220 places, 224 transitions, 452 flow. Second operand has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:16,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:16,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 196 of 224 [2024-10-31 22:19:16,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:16,369 INFO L124 PetriNetUnfolderBase]: 4/205 cut-off events. [2024-10-31 22:19:16,370 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:19:16,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 219 conditions, 205 events. 4/205 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 139 event pairs, 0 based on Foata normal form. 8/198 useless extension candidates. Maximal degree in co-relation 124. Up to 10 conditions per place. [2024-10-31 22:19:16,375 INFO L140 encePairwiseOnDemand]: 205/224 looper letters, 9 selfloop transitions, 0 changer transitions 0/201 dead transitions. [2024-10-31 22:19:16,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 201 transitions, 424 flow [2024-10-31 22:19:16,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:19:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:19:16,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 420 transitions. [2024-10-31 22:19:16,395 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9375 [2024-10-31 22:19:16,398 INFO L175 Difference]: Start difference. First operand has 220 places, 224 transitions, 452 flow. Second operand 2 states and 420 transitions. [2024-10-31 22:19:16,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 201 transitions, 424 flow [2024-10-31 22:19:16,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 201 transitions, 424 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:16,409 INFO L231 Difference]: Finished difference. Result has 201 places, 201 transitions, 406 flow [2024-10-31 22:19:16,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=406, PETRI_PLACES=201, PETRI_TRANSITIONS=201} [2024-10-31 22:19:16,418 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, -19 predicate places. [2024-10-31 22:19:16,418 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 201 transitions, 406 flow [2024-10-31 22:19:16,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:16,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:16,419 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:16,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-31 22:19:16,420 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:19:16,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:16,421 INFO L85 PathProgramCache]: Analyzing trace with hash -1097660050, now seen corresponding path program 1 times [2024-10-31 22:19:16,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:16,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176006362] [2024-10-31 22:19:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:16,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:16,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:16,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:16,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176006362] [2024-10-31 22:19:16,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176006362] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:16,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:16,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:16,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760478755] [2024-10-31 22:19:16,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:16,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:16,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:16,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:16,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:16,586 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 192 out of 224 [2024-10-31 22:19:16,587 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 201 transitions, 406 flow. Second operand has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:16,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:16,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 192 of 224 [2024-10-31 22:19:16,589 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:16,731 INFO L124 PetriNetUnfolderBase]: 6/293 cut-off events. [2024-10-31 22:19:16,731 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-31 22:19:16,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 318 conditions, 293 events. 6/293 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 439 event pairs, 0 based on Foata normal form. 0/268 useless extension candidates. Maximal degree in co-relation 314. Up to 11 conditions per place. [2024-10-31 22:19:16,733 INFO L140 encePairwiseOnDemand]: 221/224 looper letters, 17 selfloop transitions, 2 changer transitions 0/207 dead transitions. [2024-10-31 22:19:16,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 207 transitions, 456 flow [2024-10-31 22:19:16,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:16,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:16,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2024-10-31 22:19:16,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8869047619047619 [2024-10-31 22:19:16,742 INFO L175 Difference]: Start difference. First operand has 201 places, 201 transitions, 406 flow. Second operand 3 states and 596 transitions. [2024-10-31 22:19:16,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 207 transitions, 456 flow [2024-10-31 22:19:16,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 207 transitions, 456 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:16,750 INFO L231 Difference]: Finished difference. Result has 202 places, 200 transitions, 408 flow [2024-10-31 22:19:16,753 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=224, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=408, PETRI_PLACES=202, PETRI_TRANSITIONS=200} [2024-10-31 22:19:16,754 INFO L277 CegarLoopForPetriNet]: 220 programPoint places, -18 predicate places. [2024-10-31 22:19:16,754 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 200 transitions, 408 flow [2024-10-31 22:19:16,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.33333333333334) internal successors, (580), 3 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:16,755 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:16,755 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:16,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-31 22:19:16,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 49 more)] === [2024-10-31 22:19:16,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash -12728441, now seen corresponding path program 1 times [2024-10-31 22:19:16,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:16,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288129436] [2024-10-31 22:19:16,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:16,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:16,814 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:16,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:16,889 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:16,890 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:19:16,892 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (52 of 53 remaining) [2024-10-31 22:19:16,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 53 remaining) [2024-10-31 22:19:16,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 53 remaining) [2024-10-31 22:19:16,895 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 53 remaining) [2024-10-31 22:19:16,896 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 53 remaining) [2024-10-31 22:19:16,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 53 remaining) [2024-10-31 22:19:16,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 53 remaining) [2024-10-31 22:19:16,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 53 remaining) [2024-10-31 22:19:16,897 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 53 remaining) [2024-10-31 22:19:16,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 53 remaining) [2024-10-31 22:19:16,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 53 remaining) [2024-10-31 22:19:16,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 53 remaining) [2024-10-31 22:19:16,898 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 53 remaining) [2024-10-31 22:19:16,899 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 53 remaining) [2024-10-31 22:19:16,901 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 53 remaining) [2024-10-31 22:19:16,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 53 remaining) [2024-10-31 22:19:16,902 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 53 remaining) [2024-10-31 22:19:16,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 53 remaining) [2024-10-31 22:19:16,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 53 remaining) [2024-10-31 22:19:16,903 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 53 remaining) [2024-10-31 22:19:16,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (32 of 53 remaining) [2024-10-31 22:19:16,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (31 of 53 remaining) [2024-10-31 22:19:16,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 53 remaining) [2024-10-31 22:19:16,904 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 53 remaining) [2024-10-31 22:19:16,905 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 53 remaining) [2024-10-31 22:19:16,906 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 53 remaining) [2024-10-31 22:19:16,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 53 remaining) [2024-10-31 22:19:16,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 53 remaining) [2024-10-31 22:19:16,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 53 remaining) [2024-10-31 22:19:16,907 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 53 remaining) [2024-10-31 22:19:16,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 53 remaining) [2024-10-31 22:19:16,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 53 remaining) [2024-10-31 22:19:16,908 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 53 remaining) [2024-10-31 22:19:16,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 53 remaining) [2024-10-31 22:19:16,909 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 53 remaining) [2024-10-31 22:19:16,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 53 remaining) [2024-10-31 22:19:16,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 53 remaining) [2024-10-31 22:19:16,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 53 remaining) [2024-10-31 22:19:16,910 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 53 remaining) [2024-10-31 22:19:16,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 53 remaining) [2024-10-31 22:19:16,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 53 remaining) [2024-10-31 22:19:16,911 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 53 remaining) [2024-10-31 22:19:16,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 53 remaining) [2024-10-31 22:19:16,912 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 53 remaining) [2024-10-31 22:19:16,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 53 remaining) [2024-10-31 22:19:16,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 53 remaining) [2024-10-31 22:19:16,913 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (6 of 53 remaining) [2024-10-31 22:19:16,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (5 of 53 remaining) [2024-10-31 22:19:16,914 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 53 remaining) [2024-10-31 22:19:16,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 53 remaining) [2024-10-31 22:19:16,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 53 remaining) [2024-10-31 22:19:16,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 53 remaining) [2024-10-31 22:19:16,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 53 remaining) [2024-10-31 22:19:16,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-31 22:19:16,922 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-31 22:19:16,927 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:19:16,929 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-31 22:19:17,069 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:19:17,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 345 places, 353 transitions, 716 flow [2024-10-31 22:19:17,198 INFO L124 PetriNetUnfolderBase]: 15/373 cut-off events. [2024-10-31 22:19:17,199 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-31 22:19:17,207 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381 conditions, 373 events. 15/373 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 874 event pairs, 0 based on Foata normal form. 0/303 useless extension candidates. Maximal degree in co-relation 267. Up to 6 conditions per place. [2024-10-31 22:19:17,207 INFO L82 GeneralOperation]: Start removeDead. Operand has 345 places, 353 transitions, 716 flow [2024-10-31 22:19:17,216 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 345 places, 353 transitions, 716 flow [2024-10-31 22:19:17,220 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:17,221 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b03cf09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:17,221 INFO L334 AbstractCegarLoop]: Starting to check reachability of 79 error locations. [2024-10-31 22:19:17,237 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:19:17,238 INFO L124 PetriNetUnfolderBase]: 2/97 cut-off events. [2024-10-31 22:19:17,238 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:17,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:17,238 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:17,238 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:19:17,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:17,239 INFO L85 PathProgramCache]: Analyzing trace with hash -779905525, now seen corresponding path program 1 times [2024-10-31 22:19:17,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:17,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731387105] [2024-10-31 22:19:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:17,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:17,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:17,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:17,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:17,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731387105] [2024-10-31 22:19:17,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731387105] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:17,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:17,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:19:17,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866296676] [2024-10-31 22:19:17,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:17,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:19:17,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:17,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:19:17,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:17,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 299 out of 353 [2024-10-31 22:19:17,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 345 places, 353 transitions, 716 flow. Second operand has 2 states, 2 states have (on average 300.0) internal successors, (600), 2 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:17,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:17,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 299 of 353 [2024-10-31 22:19:17,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:18,320 INFO L124 PetriNetUnfolderBase]: 112/1348 cut-off events. [2024-10-31 22:19:18,321 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2024-10-31 22:19:18,330 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1535 conditions, 1348 events. 112/1348 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 8166 event pairs, 52 based on Foata normal form. 89/1264 useless extension candidates. Maximal degree in co-relation 1281. Up to 161 conditions per place. [2024-10-31 22:19:18,337 INFO L140 encePairwiseOnDemand]: 317/353 looper letters, 18 selfloop transitions, 0 changer transitions 0/312 dead transitions. [2024-10-31 22:19:18,337 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 312 transitions, 670 flow [2024-10-31 22:19:18,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:19:18,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:19:18,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 652 transitions. [2024-10-31 22:19:18,340 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.9235127478753541 [2024-10-31 22:19:18,340 INFO L175 Difference]: Start difference. First operand has 345 places, 353 transitions, 716 flow. Second operand 2 states and 652 transitions. [2024-10-31 22:19:18,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 312 transitions, 670 flow [2024-10-31 22:19:18,343 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 312 transitions, 670 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:18,347 INFO L231 Difference]: Finished difference. Result has 310 places, 312 transitions, 634 flow [2024-10-31 22:19:18,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=312, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=634, PETRI_PLACES=310, PETRI_TRANSITIONS=312} [2024-10-31 22:19:18,348 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -35 predicate places. [2024-10-31 22:19:18,349 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 312 transitions, 634 flow [2024-10-31 22:19:18,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 300.0) internal successors, (600), 2 states have internal predecessors, (600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:18,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:18,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:18,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-31 22:19:18,350 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:19:18,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:18,351 INFO L85 PathProgramCache]: Analyzing trace with hash 2130116526, now seen corresponding path program 1 times [2024-10-31 22:19:18,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:18,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125137849] [2024-10-31 22:19:18,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:18,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:18,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:18,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:18,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125137849] [2024-10-31 22:19:18,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125137849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:18,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:18,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:18,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796386491] [2024-10-31 22:19:18,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:18,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:18,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:18,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:18,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:18,474 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 291 out of 353 [2024-10-31 22:19:18,475 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 310 places, 312 transitions, 634 flow. Second operand has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:18,476 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:18,476 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 291 of 353 [2024-10-31 22:19:18,476 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:19,563 INFO L124 PetriNetUnfolderBase]: 366/3728 cut-off events. [2024-10-31 22:19:19,563 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-10-31 22:19:19,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4352 conditions, 3728 events. 366/3728 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 33130 event pairs, 95 based on Foata normal form. 0/3246 useless extension candidates. Maximal degree in co-relation 4347. Up to 290 conditions per place. [2024-10-31 22:19:19,613 INFO L140 encePairwiseOnDemand]: 345/353 looper letters, 43 selfloop transitions, 6 changer transitions 0/335 dead transitions. [2024-10-31 22:19:19,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 312 places, 335 transitions, 783 flow [2024-10-31 22:19:19,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:19,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 924 transitions. [2024-10-31 22:19:19,617 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8725212464589235 [2024-10-31 22:19:19,617 INFO L175 Difference]: Start difference. First operand has 310 places, 312 transitions, 634 flow. Second operand 3 states and 924 transitions. [2024-10-31 22:19:19,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 312 places, 335 transitions, 783 flow [2024-10-31 22:19:19,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 312 places, 335 transitions, 783 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:19,629 INFO L231 Difference]: Finished difference. Result has 314 places, 318 transitions, 686 flow [2024-10-31 22:19:19,630 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=634, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=312, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=686, PETRI_PLACES=314, PETRI_TRANSITIONS=318} [2024-10-31 22:19:19,631 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -31 predicate places. [2024-10-31 22:19:19,631 INFO L471 AbstractCegarLoop]: Abstraction has has 314 places, 318 transitions, 686 flow [2024-10-31 22:19:19,632 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 292.3333333333333) internal successors, (877), 3 states have internal predecessors, (877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:19,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:19,632 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:19,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-31 22:19:19,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:19:19,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:19,638 INFO L85 PathProgramCache]: Analyzing trace with hash -1562864605, now seen corresponding path program 1 times [2024-10-31 22:19:19,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:19,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472820709] [2024-10-31 22:19:19,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:19,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:19,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:19,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:19,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472820709] [2024-10-31 22:19:19,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472820709] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:19,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:19,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:19,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410747265] [2024-10-31 22:19:19,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:19,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:19,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:19,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:19,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:19,788 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 287 out of 353 [2024-10-31 22:19:19,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 318 transitions, 686 flow. Second operand has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:19,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:19,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 287 of 353 [2024-10-31 22:19:19,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:21,317 INFO L124 PetriNetUnfolderBase]: 674/4896 cut-off events. [2024-10-31 22:19:21,317 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-10-31 22:19:21,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6152 conditions, 4896 events. 674/4896 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 45712 event pairs, 283 based on Foata normal form. 0/4233 useless extension candidates. Maximal degree in co-relation 6145. Up to 992 conditions per place. [2024-10-31 22:19:21,387 INFO L140 encePairwiseOnDemand]: 345/353 looper letters, 37 selfloop transitions, 7 changer transitions 0/332 dead transitions. [2024-10-31 22:19:21,388 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 316 places, 332 transitions, 807 flow [2024-10-31 22:19:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:21,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:21,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 906 transitions. [2024-10-31 22:19:21,391 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8555240793201133 [2024-10-31 22:19:21,391 INFO L175 Difference]: Start difference. First operand has 314 places, 318 transitions, 686 flow. Second operand 3 states and 906 transitions. [2024-10-31 22:19:21,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 316 places, 332 transitions, 807 flow [2024-10-31 22:19:21,395 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 332 transitions, 795 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-31 22:19:21,401 INFO L231 Difference]: Finished difference. Result has 316 places, 324 transitions, 728 flow [2024-10-31 22:19:21,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=312, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=728, PETRI_PLACES=316, PETRI_TRANSITIONS=324} [2024-10-31 22:19:21,405 INFO L277 CegarLoopForPetriNet]: 345 programPoint places, -29 predicate places. [2024-10-31 22:19:21,406 INFO L471 AbstractCegarLoop]: Abstraction has has 316 places, 324 transitions, 728 flow [2024-10-31 22:19:21,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 289.0) internal successors, (867), 3 states have internal predecessors, (867), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:21,408 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:21,408 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:21,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-31 22:19:21,409 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2024-10-31 22:19:21,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:21,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1719188440, now seen corresponding path program 1 times [2024-10-31 22:19:21,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:21,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281086029] [2024-10-31 22:19:21,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:21,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:21,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:21,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:19:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:19:21,482 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:19:21,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-31 22:19:21,482 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (78 of 79 remaining) [2024-10-31 22:19:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (77 of 79 remaining) [2024-10-31 22:19:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (76 of 79 remaining) [2024-10-31 22:19:21,483 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (75 of 79 remaining) [2024-10-31 22:19:21,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (74 of 79 remaining) [2024-10-31 22:19:21,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (73 of 79 remaining) [2024-10-31 22:19:21,484 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (72 of 79 remaining) [2024-10-31 22:19:21,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (71 of 79 remaining) [2024-10-31 22:19:21,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (70 of 79 remaining) [2024-10-31 22:19:21,485 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (69 of 79 remaining) [2024-10-31 22:19:21,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (68 of 79 remaining) [2024-10-31 22:19:21,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (67 of 79 remaining) [2024-10-31 22:19:21,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (66 of 79 remaining) [2024-10-31 22:19:21,486 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (65 of 79 remaining) [2024-10-31 22:19:21,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (64 of 79 remaining) [2024-10-31 22:19:21,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (63 of 79 remaining) [2024-10-31 22:19:21,487 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (62 of 79 remaining) [2024-10-31 22:19:21,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (61 of 79 remaining) [2024-10-31 22:19:21,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (60 of 79 remaining) [2024-10-31 22:19:21,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (59 of 79 remaining) [2024-10-31 22:19:21,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (58 of 79 remaining) [2024-10-31 22:19:21,488 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (57 of 79 remaining) [2024-10-31 22:19:21,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (56 of 79 remaining) [2024-10-31 22:19:21,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (55 of 79 remaining) [2024-10-31 22:19:21,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (54 of 79 remaining) [2024-10-31 22:19:21,489 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (53 of 79 remaining) [2024-10-31 22:19:21,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (52 of 79 remaining) [2024-10-31 22:19:21,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (51 of 79 remaining) [2024-10-31 22:19:21,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (50 of 79 remaining) [2024-10-31 22:19:21,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (49 of 79 remaining) [2024-10-31 22:19:21,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (48 of 79 remaining) [2024-10-31 22:19:21,490 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (47 of 79 remaining) [2024-10-31 22:19:21,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (46 of 79 remaining) [2024-10-31 22:19:21,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (45 of 79 remaining) [2024-10-31 22:19:21,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (44 of 79 remaining) [2024-10-31 22:19:21,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (43 of 79 remaining) [2024-10-31 22:19:21,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (42 of 79 remaining) [2024-10-31 22:19:21,491 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (41 of 79 remaining) [2024-10-31 22:19:21,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (40 of 79 remaining) [2024-10-31 22:19:21,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (39 of 79 remaining) [2024-10-31 22:19:21,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (38 of 79 remaining) [2024-10-31 22:19:21,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (37 of 79 remaining) [2024-10-31 22:19:21,492 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (36 of 79 remaining) [2024-10-31 22:19:21,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (35 of 79 remaining) [2024-10-31 22:19:21,493 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (34 of 79 remaining) [2024-10-31 22:19:21,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (33 of 79 remaining) [2024-10-31 22:19:21,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (32 of 79 remaining) [2024-10-31 22:19:21,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (31 of 79 remaining) [2024-10-31 22:19:21,494 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (30 of 79 remaining) [2024-10-31 22:19:21,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (29 of 79 remaining) [2024-10-31 22:19:21,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (28 of 79 remaining) [2024-10-31 22:19:21,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (27 of 79 remaining) [2024-10-31 22:19:21,495 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (26 of 79 remaining) [2024-10-31 22:19:21,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (25 of 79 remaining) [2024-10-31 22:19:21,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (24 of 79 remaining) [2024-10-31 22:19:21,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (23 of 79 remaining) [2024-10-31 22:19:21,496 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 79 remaining) [2024-10-31 22:19:21,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 79 remaining) [2024-10-31 22:19:21,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (20 of 79 remaining) [2024-10-31 22:19:21,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (19 of 79 remaining) [2024-10-31 22:19:21,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (18 of 79 remaining) [2024-10-31 22:19:21,497 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (17 of 79 remaining) [2024-10-31 22:19:21,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONDATA_RACE (16 of 79 remaining) [2024-10-31 22:19:21,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err10ASSERT_VIOLATIONDATA_RACE (15 of 79 remaining) [2024-10-31 22:19:21,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err11ASSERT_VIOLATIONDATA_RACE (14 of 79 remaining) [2024-10-31 22:19:21,498 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err12ASSERT_VIOLATIONDATA_RACE (13 of 79 remaining) [2024-10-31 22:19:21,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err13ASSERT_VIOLATIONDATA_RACE (12 of 79 remaining) [2024-10-31 22:19:21,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err14ASSERT_VIOLATIONDATA_RACE (11 of 79 remaining) [2024-10-31 22:19:21,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err15ASSERT_VIOLATIONDATA_RACE (10 of 79 remaining) [2024-10-31 22:19:21,499 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err16ASSERT_VIOLATIONDATA_RACE (9 of 79 remaining) [2024-10-31 22:19:21,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err17ASSERT_VIOLATIONDATA_RACE (8 of 79 remaining) [2024-10-31 22:19:21,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err18ASSERT_VIOLATIONDATA_RACE (7 of 79 remaining) [2024-10-31 22:19:21,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err19ASSERT_VIOLATIONDATA_RACE (6 of 79 remaining) [2024-10-31 22:19:21,505 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err25ASSERT_VIOLATIONDATA_RACE (5 of 79 remaining) [2024-10-31 22:19:21,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err20ASSERT_VIOLATIONDATA_RACE (4 of 79 remaining) [2024-10-31 22:19:21,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err21ASSERT_VIOLATIONDATA_RACE (3 of 79 remaining) [2024-10-31 22:19:21,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err22ASSERT_VIOLATIONDATA_RACE (2 of 79 remaining) [2024-10-31 22:19:21,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err23ASSERT_VIOLATIONDATA_RACE (1 of 79 remaining) [2024-10-31 22:19:21,506 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err24ASSERT_VIOLATIONDATA_RACE (0 of 79 remaining) [2024-10-31 22:19:21,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-31 22:19:21,507 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-31 22:19:21,507 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-31 22:19:21,508 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-31 22:19:21,657 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-31 22:19:21,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 482 transitions, 982 flow [2024-10-31 22:19:21,923 INFO L124 PetriNetUnfolderBase]: 22/513 cut-off events. [2024-10-31 22:19:21,923 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-31 22:19:21,934 INFO L83 FinitePrefix]: Finished finitePrefix Result has 526 conditions, 513 events. 22/513 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1693 event pairs, 0 based on Foata normal form. 0/409 useless extension candidates. Maximal degree in co-relation 395. Up to 8 conditions per place. [2024-10-31 22:19:21,935 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 482 transitions, 982 flow [2024-10-31 22:19:21,946 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 482 transitions, 982 flow [2024-10-31 22:19:21,947 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:19:21,948 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@b03cf09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:19:21,948 INFO L334 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2024-10-31 22:19:21,960 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-31 22:19:21,961 INFO L124 PetriNetUnfolderBase]: 2/97 cut-off events. [2024-10-31 22:19:21,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-31 22:19:21,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:21,961 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:21,962 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2024-10-31 22:19:21,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:21,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1669737931, now seen corresponding path program 1 times [2024-10-31 22:19:21,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:21,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772058587] [2024-10-31 22:19:21,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:21,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:22,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:22,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:22,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772058587] [2024-10-31 22:19:22,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772058587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:22,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:22,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-31 22:19:22,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906252939] [2024-10-31 22:19:22,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:22,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-31 22:19:22,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:22,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-31 22:19:22,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-31 22:19:22,402 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 402 out of 482 [2024-10-31 22:19:22,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 482 transitions, 982 flow. Second operand has 2 states, 2 states have (on average 403.0) internal successors, (806), 2 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:22,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:22,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 402 of 482 [2024-10-31 22:19:22,405 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:26,425 INFO L124 PetriNetUnfolderBase]: 1750/12258 cut-off events. [2024-10-31 22:19:26,429 INFO L125 PetriNetUnfolderBase]: For 391/391 co-relation queries the response was YES. [2024-10-31 22:19:26,569 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14731 conditions, 12258 events. 1750/12258 cut-off events. For 391/391 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 137729 event pairs, 962 based on Foata normal form. 959/11634 useless extension candidates. Maximal degree in co-relation 12831. Up to 2202 conditions per place. [2024-10-31 22:19:26,647 INFO L140 encePairwiseOnDemand]: 429/482 looper letters, 27 selfloop transitions, 0 changer transitions 0/423 dead transitions. [2024-10-31 22:19:26,647 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 423 transitions, 918 flow [2024-10-31 22:19:26,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-31 22:19:26,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-31 22:19:26,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 884 transitions. [2024-10-31 22:19:26,650 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.91701244813278 [2024-10-31 22:19:26,650 INFO L175 Difference]: Start difference. First operand has 470 places, 482 transitions, 982 flow. Second operand 2 states and 884 transitions. [2024-10-31 22:19:26,650 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 423 transitions, 918 flow [2024-10-31 22:19:26,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 419 places, 423 transitions, 916 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:26,661 INFO L231 Difference]: Finished difference. Result has 419 places, 423 transitions, 862 flow [2024-10-31 22:19:26,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=482, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=418, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=423, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=862, PETRI_PLACES=419, PETRI_TRANSITIONS=423} [2024-10-31 22:19:26,663 INFO L277 CegarLoopForPetriNet]: 470 programPoint places, -51 predicate places. [2024-10-31 22:19:26,664 INFO L471 AbstractCegarLoop]: Abstraction has has 419 places, 423 transitions, 862 flow [2024-10-31 22:19:26,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 403.0) internal successors, (806), 2 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:26,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:26,665 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:26,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-31 22:19:26,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2024-10-31 22:19:26,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:26,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1699552338, now seen corresponding path program 1 times [2024-10-31 22:19:26,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:26,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187980522] [2024-10-31 22:19:26,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:26,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:26,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:26,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187980522] [2024-10-31 22:19:26,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187980522] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:26,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:26,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:26,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111988503] [2024-10-31 22:19:26,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:26,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:26,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:26,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:26,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:26,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 390 out of 482 [2024-10-31 22:19:26,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 423 transitions, 862 flow. Second operand has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:26,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:26,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 390 of 482 [2024-10-31 22:19:26,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:37,523 INFO L124 PetriNetUnfolderBase]: 9462/55044 cut-off events. [2024-10-31 22:19:37,524 INFO L125 PetriNetUnfolderBase]: For 733/733 co-relation queries the response was YES. [2024-10-31 22:19:37,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68372 conditions, 55044 events. 9462/55044 cut-off events. For 733/733 co-relation queries the response was YES. Maximal size of possible extension queue 984. Compared 809033 event pairs, 2845 based on Foata normal form. 0/47657 useless extension candidates. Maximal degree in co-relation 68366. Up to 6387 conditions per place. [2024-10-31 22:19:38,345 INFO L140 encePairwiseOnDemand]: 470/482 looper letters, 65 selfloop transitions, 9 changer transitions 0/458 dead transitions. [2024-10-31 22:19:38,348 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 458 transitions, 1090 flow [2024-10-31 22:19:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-31 22:19:38,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-31 22:19:38,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1247 transitions. [2024-10-31 22:19:38,351 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.8623789764868603 [2024-10-31 22:19:38,351 INFO L175 Difference]: Start difference. First operand has 419 places, 423 transitions, 862 flow. Second operand 3 states and 1247 transitions. [2024-10-31 22:19:38,351 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 458 transitions, 1090 flow [2024-10-31 22:19:38,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 421 places, 458 transitions, 1090 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-31 22:19:38,361 INFO L231 Difference]: Finished difference. Result has 423 places, 432 transitions, 940 flow [2024-10-31 22:19:38,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=482, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=419, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=423, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=414, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=940, PETRI_PLACES=423, PETRI_TRANSITIONS=432} [2024-10-31 22:19:38,364 INFO L277 CegarLoopForPetriNet]: 470 programPoint places, -47 predicate places. [2024-10-31 22:19:38,364 INFO L471 AbstractCegarLoop]: Abstraction has has 423 places, 432 transitions, 940 flow [2024-10-31 22:19:38,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:38,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-31 22:19:38,365 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:19:38,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-31 22:19:38,366 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err5ASSERT_VIOLATIONDATA_RACE (and 101 more)] === [2024-10-31 22:19:38,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:19:38,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1712997701, now seen corresponding path program 1 times [2024-10-31 22:19:38,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:19:38,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595304166] [2024-10-31 22:19:38,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:19:38,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:19:38,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:19:38,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:19:38,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:19:38,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595304166] [2024-10-31 22:19:38,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595304166] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:19:38,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:19:38,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-31 22:19:38,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756096194] [2024-10-31 22:19:38,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:19:38,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-31 22:19:38,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:19:38,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-31 22:19:38,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-31 22:19:38,506 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 387 out of 482 [2024-10-31 22:19:38,508 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 423 places, 432 transitions, 940 flow. Second operand has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-31 22:19:38,508 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-31 22:19:38,508 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 387 of 482 [2024-10-31 22:19:38,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-31 22:19:41,108 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1847] L766-->L766-3: Formula: (let ((.cse4 (select |v_#race_731| |v_~#m2~0.base_21|))) (let ((.cse2 (+ |v_~#m2~0.offset_21| 2)) (.cse1 (+ |v_~#m2~0.offset_21| 1)) (.cse5 (select |v_#memory_int_425| |v_~#m2~0.base_21|)) (.cse0 (select .cse4 |v_~#m2~0.offset_21|)) (.cse3 (+ |v_~#m2~0.offset_21| 3))) (and (= |v_#race_731| (store |v_#race_733| |v_~#m2~0.base_21| (store (store (store (store (select |v_#race_733| |v_~#m2~0.base_21|) |v_~#m2~0.offset_21| .cse0) .cse1 .cse0) .cse2 .cse0) .cse3 .cse0))) (= .cse0 (select .cse4 .cse2)) (not (= (ite (= (select .cse5 |v_~#m2~0.offset_21|) 1) 1 0) 0)) (= (select .cse4 .cse1) .cse0) (= |v_#memory_int_424| (store |v_#memory_int_425| |v_~#m2~0.base_21| (store .cse5 |v_~#m2~0.offset_21| 0))) (= .cse0 (select .cse4 .cse3))))) InVars {#race=|v_#race_733|, #memory_int=|v_#memory_int_425|, ~#m2~0.base=|v_~#m2~0.base_21|, ~#m2~0.offset=|v_~#m2~0.offset_21|} OutVars{#race=|v_#race_731|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.base=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.base_5|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.offset=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.offset_5|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.offset=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.offset_5|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.base=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.base_5|, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_7|, #memory_int=|v_#memory_int_424|, ~#m2~0.base=|v_~#m2~0.base_21|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~nondet6#1=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~nondet6#1_5|, ~#m2~0.offset=|v_~#m2~0.offset_21|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem5#1=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem5#1_5|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.base, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, #memory_int, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.offset, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~nondet6#1, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem5#1, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.offset, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.base, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][189], [139#L766-3true, 112#L766-3true, 347#L775-6true, 475#true, 432#L716true, 471#true, 480#true, 467#true, 469#true, 473#true, Black: 477#(= |#race~state~0| 0)]) [2024-10-31 22:19:41,108 INFO L294 olderBase$Statistics]: this new event has 154 ancestors and is cut-off event [2024-10-31 22:19:41,109 INFO L297 olderBase$Statistics]: existing Event has 143 ancestors and is cut-off event [2024-10-31 22:19:41,109 INFO L297 olderBase$Statistics]: existing Event has 143 ancestors and is cut-off event [2024-10-31 22:19:41,109 INFO L297 olderBase$Statistics]: existing Event has 154 ancestors and is cut-off event [2024-10-31 22:19:41,226 INFO L292 olderBase$Statistics]: inserting event number 4 for the transition-marking pair ([1847] L766-->L766-3: Formula: (let ((.cse4 (select |v_#race_731| |v_~#m2~0.base_21|))) (let ((.cse2 (+ |v_~#m2~0.offset_21| 2)) (.cse1 (+ |v_~#m2~0.offset_21| 1)) (.cse5 (select |v_#memory_int_425| |v_~#m2~0.base_21|)) (.cse0 (select .cse4 |v_~#m2~0.offset_21|)) (.cse3 (+ |v_~#m2~0.offset_21| 3))) (and (= |v_#race_731| (store |v_#race_733| |v_~#m2~0.base_21| (store (store (store (store (select |v_#race_733| |v_~#m2~0.base_21|) |v_~#m2~0.offset_21| .cse0) .cse1 .cse0) .cse2 .cse0) .cse3 .cse0))) (= .cse0 (select .cse4 .cse2)) (not (= (ite (= (select .cse5 |v_~#m2~0.offset_21|) 1) 1 0) 0)) (= (select .cse4 .cse1) .cse0) (= |v_#memory_int_424| (store |v_#memory_int_425| |v_~#m2~0.base_21| (store .cse5 |v_~#m2~0.offset_21| 0))) (= .cse0 (select .cse4 .cse3))))) InVars {#race=|v_#race_733|, #memory_int=|v_#memory_int_425|, ~#m2~0.base=|v_~#m2~0.base_21|, ~#m2~0.offset=|v_~#m2~0.offset_21|} OutVars{#race=|v_#race_731|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.base=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.base_5|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.offset=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.offset_5|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.offset=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.offset_5|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.base=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.base_5|, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1_7|, #memory_int=|v_#memory_int_424|, ~#m2~0.base=|v_~#m2~0.base_21|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~nondet6#1=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~nondet6#1_5|, ~#m2~0.offset=|v_~#m2~0.offset_21|, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem5#1=|v_thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem5#1_5|, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1=|v_thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1_7|} AuxVars[] AssignedVars[#race, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.base, thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1, #memory_int, thr1Thread3of3ForFork0___VERIFIER_atomic_release_~m#1.offset, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~nondet6#1, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#t~mem5#1, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.offset, thr1Thread3of3ForFork0___VERIFIER_atomic_release_#in~m#1.base, thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1][189], [139#L766-3true, 112#L766-3true, 347#L775-6true, 475#true, 471#true, 480#true, 467#true, 469#true, 343#L764true, 473#true, Black: 477#(= |#race~state~0| 0)]) [2024-10-31 22:19:41,226 INFO L294 olderBase$Statistics]: this new event has 155 ancestors and is cut-off event [2024-10-31 22:19:41,227 INFO L297 olderBase$Statistics]: existing Event has 155 ancestors and is cut-off event [2024-10-31 22:19:41,227 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event [2024-10-31 22:19:41,227 INFO L297 olderBase$Statistics]: existing Event has 144 ancestors and is cut-off event