./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 0e0057cc 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_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/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_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme --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 0.2.4-dev-0e0057c [2023-11-26 12:03:30,025 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:03:30,096 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-11-26 12:03:30,101 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:03:30,102 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:03:30,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:03:30,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:03:30,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:03:30,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:03:30,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:03:30,132 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:03:30,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:03:30,133 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:03:30,133 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:03:30,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:03:30,135 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:03:30,135 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:03:30,136 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:03:30,136 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:03:30,137 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:03:30,137 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:03:30,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:03:30,139 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-26 12:03:30,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:03:30,140 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:03:30,140 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:03:30,141 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:03:30,142 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:03:30,142 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:03:30,143 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:03:30,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:30,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:03:30,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:03:30,157 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:03:30,161 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:03:30,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:03:30,162 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:03:30,162 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:03:30,163 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:03:30,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:03:30,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:03:30,165 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_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2023-11-26 12:03:30,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:03:30,470 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:03:30,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:03:30,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:03:30,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:03:30,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-26 12:03:33,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:03:34,108 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:03:34,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2023-11-26 12:03:34,138 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/data/048837a5f/466aea07af384b9e875a7bff8649fde6/FLAG299c0182f [2023-11-26 12:03:34,160 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/data/048837a5f/466aea07af384b9e875a7bff8649fde6 [2023-11-26 12:03:34,167 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:03:34,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:03:34,172 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:34,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:03:34,179 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:03:34,182 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96e68ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:34, skipping insertion in model container [2023-11-26 12:03:34,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:34" (1/1) ... [2023-11-26 12:03:34,256 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:03:34,878 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:34,880 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:34,883 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:34,886 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:34,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:34,988 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:03:35,070 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:35,071 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:35,072 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:35,073 WARN L1590 CHandler]: Possible shadowing of function new [2023-11-26 12:03:35,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:03:35,286 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:03:35,286 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35 WrapperNode [2023-11-26 12:03:35,286 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:03:35,288 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:35,288 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:03:35,288 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:03:35,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,416 INFO L138 Inliner]: procedures = 279, calls = 73, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 495 [2023-11-26 12:03:35,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:03:35,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:03:35,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:03:35,418 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:03:35,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,489 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,497 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,505 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,513 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:03:35,514 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:03:35,514 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:03:35,515 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:03:35,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (1/1) ... [2023-11-26 12:03:35,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:03:35,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:03:35,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:03:35,599 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:03:35,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:03:35,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 12:03:35,626 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-26 12:03:35,627 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-26 12:03:35,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:03:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-26 12:03:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:03:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-26 12:03:35,628 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-26 12:03:35,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:03:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-26 12:03:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:03:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:03:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 12:03:35,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:03:35,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:03:35,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:03:35,633 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-26 12:03:35,840 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:03:35,842 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:03:36,641 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:03:36,713 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:03:36,714 INFO L309 CfgBuilder]: Removed 30 assume(true) statements. [2023-11-26 12:03:36,716 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:36 BoogieIcfgContainer [2023-11-26 12:03:36,716 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:03:36,719 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:03:36,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:03:36,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:03:36,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:34" (1/3) ... [2023-11-26 12:03:36,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456cdd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:36, skipping insertion in model container [2023-11-26 12:03:36,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:35" (2/3) ... [2023-11-26 12:03:36,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456cdd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:36, skipping insertion in model container [2023-11-26 12:03:36,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:36" (3/3) ... [2023-11-26 12:03:36,726 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2023-11-26 12:03:36,737 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-26 12:03:36,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:03:36,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2023-11-26 12:03:36,748 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-26 12:03:36,903 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-26 12:03:36,968 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 479 places, 522 transitions, 1064 flow [2023-11-26 12:03:37,403 INFO L124 PetriNetUnfolderBase]: 80/820 cut-off events. [2023-11-26 12:03:37,403 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-26 12:03:37,441 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. [2023-11-26 12:03:37,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 479 places, 522 transitions, 1064 flow [2023-11-26 12:03:37,457 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 479 places, 522 transitions, 1064 flow [2023-11-26 12:03:37,474 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:03:37,481 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;@457d7234, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:03:37,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2023-11-26 12:03:37,491 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-26 12:03:37,491 INFO L124 PetriNetUnfolderBase]: 3/54 cut-off events. [2023-11-26 12:03:37,491 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-26 12:03:37,491 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:37,492 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] [2023-11-26 12:03:37,492 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)] === [2023-11-26 12:03:37,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:37,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1011142958, now seen corresponding path program 1 times [2023-11-26 12:03:37,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:37,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383321543] [2023-11-26 12:03:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:37,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:37,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:38,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:38,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383321543] [2023-11-26 12:03:38,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383321543] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:38,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:38,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:38,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802367509] [2023-11-26 12:03:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:38,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:38,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:38,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:38,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:39,399 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 522 [2023-11-26 12:03:39,408 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) [2023-11-26 12:03:39,408 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:39,408 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 522 [2023-11-26 12:03:39,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:53,224 INFO L124 PetriNetUnfolderBase]: 26818/69061 cut-off events. [2023-11-26 12:03:53,224 INFO L125 PetriNetUnfolderBase]: For 951/1005 co-relation queries the response was YES. [2023-11-26 12:03:53,428 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. [2023-11-26 12:03:53,967 INFO L140 encePairwiseOnDemand]: 474/522 looper letters, 120 selfloop transitions, 10 changer transitions 0/478 dead transitions. [2023-11-26 12:03:53,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 476 places, 478 transitions, 1236 flow [2023-11-26 12:03:53,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:03:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:03:53,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2280 transitions. [2023-11-26 12:03:53,998 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7279693486590039 [2023-11-26 12:03:53,999 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2280 transitions. [2023-11-26 12:03:54,000 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2280 transitions. [2023-11-26 12:03:54,006 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:54,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2280 transitions. [2023-11-26 12:03:54,021 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) [2023-11-26 12:03:54,038 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) [2023-11-26 12:03:54,042 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) [2023-11-26 12:03:54,044 INFO L175 Difference]: Start difference. First operand has 479 places, 522 transitions, 1064 flow. Second operand 6 states and 2280 transitions. [2023-11-26 12:03:54,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 476 places, 478 transitions, 1236 flow [2023-11-26 12:03:54,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 478 transitions, 1236 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-26 12:03:54,077 INFO L231 Difference]: Finished difference. Result has 476 places, 478 transitions, 996 flow [2023-11-26 12:03:54,080 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} [2023-11-26 12:03:54,085 INFO L281 CegarLoopForPetriNet]: 479 programPoint places, -3 predicate places. [2023-11-26 12:03:54,086 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 478 transitions, 996 flow [2023-11-26 12:03:54,088 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) [2023-11-26 12:03:54,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:54,088 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] [2023-11-26 12:03:54,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:03:54,089 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)] === [2023-11-26 12:03:54,090 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:54,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1522385457, now seen corresponding path program 1 times [2023-11-26 12:03:54,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:54,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004623752] [2023-11-26 12:03:54,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:54,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:54,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:54,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:54,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:54,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004623752] [2023-11-26 12:03:54,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004623752] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:54,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:54,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:03:54,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435605111] [2023-11-26 12:03:54,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:54,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:03:54,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:54,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:03:54,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:03:54,223 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 456 out of 522 [2023-11-26 12:03:54,226 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) [2023-11-26 12:03:54,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:54,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 456 of 522 [2023-11-26 12:03:54,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:03:55,352 INFO L124 PetriNetUnfolderBase]: 363/4272 cut-off events. [2023-11-26 12:03:55,353 INFO L125 PetriNetUnfolderBase]: For 131/143 co-relation queries the response was YES. [2023-11-26 12:03:55,379 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. [2023-11-26 12:03:55,395 INFO L140 encePairwiseOnDemand]: 519/522 looper letters, 27 selfloop transitions, 2 changer transitions 0/479 dead transitions. [2023-11-26 12:03:55,396 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 478 places, 479 transitions, 1056 flow [2023-11-26 12:03:55,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:03:55,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-26 12:03:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1398 transitions. [2023-11-26 12:03:55,401 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.89272030651341 [2023-11-26 12:03:55,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1398 transitions. [2023-11-26 12:03:55,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1398 transitions. [2023-11-26 12:03:55,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:03:55,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1398 transitions. [2023-11-26 12:03:55,408 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) [2023-11-26 12:03:55,413 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) [2023-11-26 12:03:55,415 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) [2023-11-26 12:03:55,416 INFO L175 Difference]: Start difference. First operand has 476 places, 478 transitions, 996 flow. Second operand 3 states and 1398 transitions. [2023-11-26 12:03:55,416 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 478 places, 479 transitions, 1056 flow [2023-11-26 12:03:55,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 479 transitions, 1036 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-11-26 12:03:55,428 INFO L231 Difference]: Finished difference. Result has 474 places, 479 transitions, 988 flow [2023-11-26 12:03:55,430 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} [2023-11-26 12:03:55,431 INFO L281 CegarLoopForPetriNet]: 479 programPoint places, -5 predicate places. [2023-11-26 12:03:55,431 INFO L495 AbstractCegarLoop]: Abstraction has has 474 places, 479 transitions, 988 flow [2023-11-26 12:03:55,432 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) [2023-11-26 12:03:55,433 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:03:55,433 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] [2023-11-26 12:03:55,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:03:55,433 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)] === [2023-11-26 12:03:55,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:03:55,434 INFO L85 PathProgramCache]: Analyzing trace with hash -2076741347, now seen corresponding path program 1 times [2023-11-26 12:03:55,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:03:55,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146318038] [2023-11-26 12:03:55,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:03:55,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:03:55,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:03:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:03:55,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:03:55,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146318038] [2023-11-26 12:03:55,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146318038] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:03:55,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:03:55,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-26 12:03:55,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062183614] [2023-11-26 12:03:55,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:03:55,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:03:55,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:03:55,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:03:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:03:56,596 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 352 out of 522 [2023-11-26 12:03:56,600 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) [2023-11-26 12:03:56,601 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:03:56,601 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 352 of 522 [2023-11-26 12:03:56,601 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-26 12:04:08,342 INFO L124 PetriNetUnfolderBase]: 26819/69058 cut-off events. [2023-11-26 12:04:08,342 INFO L125 PetriNetUnfolderBase]: For 1006/1060 co-relation queries the response was YES. [2023-11-26 12:04:08,649 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. [2023-11-26 12:04:11,906 INFO L140 encePairwiseOnDemand]: 510/522 looper letters, 120 selfloop transitions, 10 changer transitions 0/477 dead transitions. [2023-11-26 12:04:11,906 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 477 places, 477 transitions, 1244 flow [2023-11-26 12:04:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:04:11,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-11-26 12:04:11,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2244 transitions. [2023-11-26 12:04:11,917 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7164750957854407 [2023-11-26 12:04:11,918 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2244 transitions. [2023-11-26 12:04:11,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2244 transitions. [2023-11-26 12:04:11,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:04:11,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2244 transitions. [2023-11-26 12:04:11,931 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) [2023-11-26 12:04:11,943 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) [2023-11-26 12:04:11,948 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) [2023-11-26 12:04:11,948 INFO L175 Difference]: Start difference. First operand has 474 places, 479 transitions, 988 flow. Second operand 6 states and 2244 transitions. [2023-11-26 12:04:11,948 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 477 places, 477 transitions, 1244 flow [2023-11-26 12:04:11,957 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 476 places, 477 transitions, 1242 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-26 12:04:11,968 INFO L231 Difference]: Finished difference. Result has 476 places, 477 transitions, 1002 flow [2023-11-26 12:04:11,970 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} [2023-11-26 12:04:11,971 INFO L281 CegarLoopForPetriNet]: 479 programPoint places, -3 predicate places. [2023-11-26 12:04:11,971 INFO L495 AbstractCegarLoop]: Abstraction has has 476 places, 477 transitions, 1002 flow [2023-11-26 12:04:11,974 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) [2023-11-26 12:04:11,974 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-26 12:04:11,975 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] [2023-11-26 12:04:11,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:04:11,975 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)] === [2023-11-26 12:04:11,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:04:11,976 INFO L85 PathProgramCache]: Analyzing trace with hash 857665580, now seen corresponding path program 1 times [2023-11-26 12:04:11,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:04:11,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652587224] [2023-11-26 12:04:11,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:11,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:04:12,020 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-26 12:04:12,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1713939388] [2023-11-26 12:04:12,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:04:12,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:04:12,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:04:12,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:04:12,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55437e31-202e-43ff-8ea1-7229e869bb98/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:04:12,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:04:12,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-26 12:04:12,213 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:04:12,344 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 [2023-11-26 12:04:12,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-11-26 12:04:12,445 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:04:12,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2023-11-26 12:04:12,529 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:04:12,530 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 33 treesize of output 38 [2023-11-26 12:04:12,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:04:12,580 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:04:12,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:04:12,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652587224] [2023-11-26 12:04:12,581 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-26 12:04:12,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713939388] [2023-11-26 12:04:12,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713939388] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:04:12,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:04:12,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-26 12:04:12,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728213377] [2023-11-26 12:04:12,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:04:12,584 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-26 12:04:12,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:04:12,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-26 12:04:12,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-26 12:04:13,761 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 349 out of 522 [2023-11-26 12:04:13,767 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 476 places, 477 transitions, 1002 flow. Second operand has 8 states, 8 states have (on average 351.25) internal successors, (2810), 8 states have internal predecessors, (2810), 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) [2023-11-26 12:04:13,767 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-26 12:04:13,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 349 of 522 [2023-11-26 12:04:13,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand