./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx --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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:05:11,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:05:12,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-21 22:05:12,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:05:12,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:05:12,144 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:05:12,145 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:05:12,146 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:05:12,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:05:12,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:05:12,154 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:05:12,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:05:12,155 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:05:12,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:05:12,158 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:05:12,159 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:05:12,159 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:05:12,160 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:05:12,160 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:05:12,161 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:05:12,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:05:12,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:05:12,163 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 22:05:12,163 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:05:12,164 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:05:12,164 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:05:12,165 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:05:12,166 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:05:12,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:05:12,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:05:12,168 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:12,169 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:05:12,169 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:05:12,169 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:05:12,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:05:12,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:05:12,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:05:12,170 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:05:12,171 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:05:12,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:05:12,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:05:12,172 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_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2023-11-21 22:05:12,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:05:12,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:05:12,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:05:12,545 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:05:12,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:05:12,547 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-21 22:05:15,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:05:15,995 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:05:15,995 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-21 22:05:16,029 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/data/4202459fc/98f030e3ead84d1fbc424d992fa0b898/FLAG6d9e523c9 [2023-11-21 22:05:16,048 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/data/4202459fc/98f030e3ead84d1fbc424d992fa0b898 [2023-11-21 22:05:16,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:05:16,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:05:16,059 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:16,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:05:16,065 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:05:16,066 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@144af494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:16, skipping insertion in model container [2023-11-21 22:05:16,068 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:05:16" (1/1) ... [2023-11-21 22:05:16,149 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:05:16,771 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,772 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,775 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,777 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,868 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:16,896 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:05:16,970 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,976 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,978 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:16,982 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-21 22:05:17,032 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:05:17,124 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:05:17,124 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17 WrapperNode [2023-11-21 22:05:17,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:05:17,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:17,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:05:17,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:05:17,135 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,179 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,272 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 495 [2023-11-21 22:05:17,273 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:05:17,274 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:05:17,274 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:05:17,274 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:05:17,284 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,293 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,342 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,348 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:05:17,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:05:17,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:05:17,361 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:05:17,361 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (1/1) ... [2023-11-21 22:05:17,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:05:17,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:17,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:05:17,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:05:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:05:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:05:17,468 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-21 22:05:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-21 22:05:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:05:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-21 22:05:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:05:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-21 22:05:17,469 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-21 22:05:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:05:17,469 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-21 22:05:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:05:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:05:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:05:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:05:17,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:05:17,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:05:17,472 WARN L212 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-21 22:05:17,652 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:05:17,654 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:05:18,530 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:05:18,581 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:05:18,583 INFO L308 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-21 22:05:18,585 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:18 BoogieIcfgContainer [2023-11-21 22:05:18,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:05:18,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:05:18,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:05:18,592 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:05:18,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:05:16" (1/3) ... [2023-11-21 22:05:18,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353e49b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:18, skipping insertion in model container [2023-11-21 22:05:18,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:05:17" (2/3) ... [2023-11-21 22:05:18,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@353e49b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:05:18, skipping insertion in model container [2023-11-21 22:05:18,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:05:18" (3/3) ... [2023-11-21 22:05:18,596 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2023-11-21 22:05:18,606 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-21 22:05:18,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:05:18,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-21 22:05:18,615 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-21 22:05:18,841 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-21 22:05:18,904 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 522 transitions, 1064 flow [2023-11-21 22:05:19,261 INFO L124 PetriNetUnfolderBase]: 80/820 cut-off events. [2023-11-21 22:05:19,262 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-21 22:05:19,302 INFO L83 FinitePrefix]: Finished finitePrefix Result has 837 conditions, 820 events. 80/820 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 4215 event pairs, 0 based on Foata normal form. 0/695 useless extension candidates. Maximal degree in co-relation 420. Up to 8 conditions per place. [2023-11-21 22:05:19,302 INFO L82 GeneralOperation]: Start removeDead. Operand has 479 places, 522 transitions, 1064 flow [2023-11-21 22:05:19,320 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 522 transitions, 1064 flow [2023-11-21 22:05:19,336 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:05:19,347 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5c0344f3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:05:19,347 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-21 22:05:19,378 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-21 22:05:19,379 INFO L124 PetriNetUnfolderBase]: 3/54 cut-off events. [2023-11-21 22:05:19,379 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-21 22:05:19,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:19,380 INFO L208 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] [2023-11-21 22:05:19,381 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-21 22:05:19,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:19,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1011142958, now seen corresponding path program 1 times [2023-11-21 22:05:19,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:19,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818685460] [2023-11-21 22:05:19,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:19,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:20,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:20,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818685460] [2023-11-21 22:05:20,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818685460] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:20,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:20,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:20,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946666147] [2023-11-21 22:05:20,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:20,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:20,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:20,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:21,204 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 522 [2023-11-21 22:05:21,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 479 places, 522 transitions, 1064 flow. Second operand has 6 states, 6 states have (on average 353.3333333333333) internal successors, (2120), 6 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:21,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:21,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 522 [2023-11-21 22:05:21,213 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:34,748 INFO L124 PetriNetUnfolderBase]: 26818/69061 cut-off events. [2023-11-21 22:05:34,749 INFO L125 PetriNetUnfolderBase]: For 951/1005 co-relation queries the response was YES. [2023-11-21 22:05:34,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108988 conditions, 69061 events. 26818/69061 cut-off events. For 951/1005 co-relation queries the response was YES. Maximal size of possible extension queue 1510. Compared 831982 event pairs, 23364 based on Foata normal form. 14450/77494 useless extension candidates. Maximal degree in co-relation 105770. Up to 39532 conditions per place. [2023-11-21 22:05:35,269 INFO L140 encePairwiseOnDemand]: 474/522 looper letters, 120 selfloop transitions, 10 changer transitions 0/478 dead transitions. [2023-11-21 22:05:35,269 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 478 transitions, 1236 flow [2023-11-21 22:05:35,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:35,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:35,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2280 transitions. [2023-11-21 22:05:35,295 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7279693486590039 [2023-11-21 22:05:35,296 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2280 transitions. [2023-11-21 22:05:35,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2280 transitions. [2023-11-21 22:05:35,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:35,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2280 transitions. [2023-11-21 22:05:35,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 380.0) internal successors, (2280), 6 states have internal predecessors, (2280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:35,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:35,334 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:35,336 INFO L175 Difference]: Start difference. First operand has 479 places, 522 transitions, 1064 flow. Second operand 6 states and 2280 transitions. [2023-11-21 22:05:35,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 478 transitions, 1236 flow [2023-11-21 22:05:35,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 478 transitions, 1236 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-21 22:05:35,369 INFO L231 Difference]: Finished difference. Result has 476 places, 478 transitions, 996 flow [2023-11-21 22:05:35,372 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=522, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=468, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=996, PETRI_PLACES=476, PETRI_TRANSITIONS=478} [2023-11-21 22:05:35,376 INFO L281 CegarLoopForPetriNet]: 479 programPoint places, -3 predicate places. [2023-11-21 22:05:35,377 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 478 transitions, 996 flow [2023-11-21 22:05:35,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 353.3333333333333) internal successors, (2120), 6 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:35,379 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:35,379 INFO L208 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] [2023-11-21 22:05:35,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:05:35,380 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-21 22:05:35,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:35,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1522385457, now seen corresponding path program 1 times [2023-11-21 22:05:35,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:35,381 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884475906] [2023-11-21 22:05:35,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:35,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:35,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:35,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884475906] [2023-11-21 22:05:35,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884475906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:35,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:35,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 22:05:35,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779227267] [2023-11-21 22:05:35,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:35,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 22:05:35,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:35,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 22:05:35,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 22:05:35,498 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 522 [2023-11-21 22:05:35,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 478 transitions, 996 flow. Second operand has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:35,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:35,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 522 [2023-11-21 22:05:35,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:36,666 INFO L124 PetriNetUnfolderBase]: 363/4272 cut-off events. [2023-11-21 22:05:36,666 INFO L125 PetriNetUnfolderBase]: For 131/143 co-relation queries the response was YES. [2023-11-21 22:05:36,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4889 conditions, 4272 events. 363/4272 cut-off events. For 131/143 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 40397 event pairs, 264 based on Foata normal form. 1/3868 useless extension candidates. Maximal degree in co-relation 4630. Up to 530 conditions per place. [2023-11-21 22:05:36,715 INFO L140 encePairwiseOnDemand]: 519/522 looper letters, 27 selfloop transitions, 2 changer transitions 0/479 dead transitions. [2023-11-21 22:05:36,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 479 transitions, 1056 flow [2023-11-21 22:05:36,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 22:05:36,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-21 22:05:36,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2023-11-21 22:05:36,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.89272030651341 [2023-11-21 22:05:36,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1398 transitions. [2023-11-21 22:05:36,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1398 transitions. [2023-11-21 22:05:36,725 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:36,726 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1398 transitions. [2023-11-21 22:05:36,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 466.0) internal successors, (1398), 3 states have internal predecessors, (1398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:36,742 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 522.0) internal successors, (2088), 4 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:36,744 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 522.0) internal successors, (2088), 4 states have internal predecessors, (2088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:36,745 INFO L175 Difference]: Start difference. First operand has 476 places, 478 transitions, 996 flow. Second operand 3 states and 1398 transitions. [2023-11-21 22:05:36,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 479 transitions, 1056 flow [2023-11-21 22:05:36,751 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 479 transitions, 1036 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-21 22:05:36,761 INFO L231 Difference]: Finished difference. Result has 474 places, 479 transitions, 988 flow [2023-11-21 22:05:36,762 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=522, PETRI_DIFFERENCE_MINUEND_FLOW=976, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=478, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=476, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=988, PETRI_PLACES=474, PETRI_TRANSITIONS=479} [2023-11-21 22:05:36,763 INFO L281 CegarLoopForPetriNet]: 479 programPoint places, -5 predicate places. [2023-11-21 22:05:36,764 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 479 transitions, 988 flow [2023-11-21 22:05:36,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 457.3333333333333) internal successors, (1372), 3 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:36,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:36,766 INFO L208 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] [2023-11-21 22:05:36,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:05:36,767 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-21 22:05:36,767 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:36,768 INFO L85 PathProgramCache]: Analyzing trace with hash -2076741347, now seen corresponding path program 1 times [2023-11-21 22:05:36,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:36,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367997148] [2023-11-21 22:05:36,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:36,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:36,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:37,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:37,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367997148] [2023-11-21 22:05:37,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367997148] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:37,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:37,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:37,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075604615] [2023-11-21 22:05:37,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:37,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:37,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:37,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:37,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:38,156 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 522 [2023-11-21 22:05:38,160 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 474 places, 479 transitions, 988 flow. Second operand has 6 states, 6 states have (on average 353.3333333333333) internal successors, (2120), 6 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:38,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:38,161 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 522 [2023-11-21 22:05:38,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-21 22:05:48,939 INFO L124 PetriNetUnfolderBase]: 26819/69058 cut-off events. [2023-11-21 22:05:48,939 INFO L125 PetriNetUnfolderBase]: For 1006/1060 co-relation queries the response was YES. [2023-11-21 22:05:49,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 109036 conditions, 69058 events. 26819/69058 cut-off events. For 1006/1060 co-relation queries the response was YES. Maximal size of possible extension queue 1518. Compared 831118 event pairs, 23364 based on Foata normal form. 0/63064 useless extension candidates. Maximal degree in co-relation 108836. Up to 39566 conditions per place. [2023-11-21 22:05:49,563 INFO L140 encePairwiseOnDemand]: 510/522 looper letters, 120 selfloop transitions, 10 changer transitions 0/477 dead transitions. [2023-11-21 22:05:49,563 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 477 transitions, 1244 flow [2023-11-21 22:05:49,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:05:49,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-21 22:05:49,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2244 transitions. [2023-11-21 22:05:49,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7164750957854407 [2023-11-21 22:05:49,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2244 transitions. [2023-11-21 22:05:49,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2244 transitions. [2023-11-21 22:05:49,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:05:49,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2244 transitions. [2023-11-21 22:05:49,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 374.0) internal successors, (2244), 6 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:49,594 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:49,598 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 522.0) internal successors, (3654), 7 states have internal predecessors, (3654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:49,598 INFO L175 Difference]: Start difference. First operand has 474 places, 479 transitions, 988 flow. Second operand 6 states and 2244 transitions. [2023-11-21 22:05:49,599 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 477 transitions, 1244 flow [2023-11-21 22:05:49,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 477 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-21 22:05:49,618 INFO L231 Difference]: Finished difference. Result has 476 places, 477 transitions, 1002 flow [2023-11-21 22:05:49,619 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=522, PETRI_DIFFERENCE_MINUEND_FLOW=982, PETRI_DIFFERENCE_MINUEND_PLACES=471, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=477, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=467, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1002, PETRI_PLACES=476, PETRI_TRANSITIONS=477} [2023-11-21 22:05:49,621 INFO L281 CegarLoopForPetriNet]: 479 programPoint places, -3 predicate places. [2023-11-21 22:05:49,625 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 477 transitions, 1002 flow [2023-11-21 22:05:49,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 353.3333333333333) internal successors, (2120), 6 states have internal predecessors, (2120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:49,628 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-21 22:05:49,628 INFO L208 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] [2023-11-21 22:05:49,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:05:49,630 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr6ASSERT_VIOLATIONDATA_RACE, t2_funErr5ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 38 more)] === [2023-11-21 22:05:49,630 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:05:49,631 INFO L85 PathProgramCache]: Analyzing trace with hash 857665580, now seen corresponding path program 1 times [2023-11-21 22:05:49,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:05:49,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714727640] [2023-11-21 22:05:49,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:49,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:05:49,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-21 22:05:49,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2119684920] [2023-11-21 22:05:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:05:49,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-21 22:05:49,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:05:49,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-21 22:05:49,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_90e99029-c31f-465a-8544-3f415bb0231c/bin/uautomizer-verify-bycVGegfSx/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-21 22:05:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:05:49,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-21 22:05:49,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:05:49,939 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-21 22:05:49,961 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-11-21 22:05:49,999 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:05:49,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2023-11-21 22:05:50,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-21 22:05:50,046 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 44 [2023-11-21 22:05:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:05:50,075 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:05:50,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:05:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714727640] [2023-11-21 22:05:50,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-21 22:05:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119684920] [2023-11-21 22:05:50,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119684920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:05:50,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:05:50,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:05:50,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092309063] [2023-11-21 22:05:50,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:05:50,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:05:50,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:05:50,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:05:50,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:05:50,813 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 351 out of 522 [2023-11-21 22:05:50,820 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 477 transitions, 1002 flow. Second operand has 6 states, 6 states have (on average 353.6666666666667) internal successors, (2122), 6 states have internal predecessors, (2122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:05:50,820 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-21 22:05:50,820 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 351 of 522 [2023-11-21 22:05:50,820 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand