./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 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_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:42,800 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:42,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:53:42,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:42,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:42,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:42,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:42,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:42,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:42,956 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:42,957 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:42,957 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:42,958 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:42,960 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:42,960 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:42,961 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:42,961 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:42,962 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:42,963 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:42,963 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:42,964 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:42,965 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:42,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:42,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:42,967 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:53:42,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:42,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:53:42,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:42,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:42,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:42,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:42,970 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:53:42,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:53:42,971 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:53:42,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:42,972 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:42,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:42,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:42,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:42,974 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:42,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:42,975 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:42,976 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:42,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:42,976 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:42,977 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:42,977 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:42,977 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2023-11-12 00:53:43,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:43,358 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:43,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:43,364 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:43,365 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:43,366 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-12 00:53:46,843 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:47,169 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:47,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2023-11-12 00:53:47,180 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/data/5e59ed507/ff8ecc2c7d8c4016b4e6d3222ff5d807/FLAG331974897 [2023-11-12 00:53:47,198 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/data/5e59ed507/ff8ecc2c7d8c4016b4e6d3222ff5d807 [2023-11-12 00:53:47,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:47,203 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:47,205 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:47,206 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:47,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:47,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,215 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68b141e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47, skipping insertion in model container [2023-11-12 00:53:47,215 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,246 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:47,599 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:47,612 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:53:47,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:47,681 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:53:47,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47 WrapperNode [2023-11-12 00:53:47,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:47,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:47,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:53:47,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:53:47,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,725 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,775 INFO L138 Inliner]: procedures = 25, calls = 47, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 310 [2023-11-12 00:53:47,776 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:47,777 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:53:47,777 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:53:47,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:53:47,792 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,805 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,816 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:53:47,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:53:47,895 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:53:47,895 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:53:47,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (1/1) ... [2023-11-12 00:53:47,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:47,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:47,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:53:47,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3e4bdda1-78e1-4c45-820d-768b2294a653/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:53:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:53:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:53:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:53:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:53:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-12 00:53:47,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-12 00:53:47,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-12 00:53:47,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-12 00:53:47,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-12 00:53:47,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-12 00:53:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:53:47,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:53:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:53:47,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:53:47,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:53:47,987 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-12 00:53:48,182 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:53:48,188 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:53:49,093 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:49,110 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:49,110 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-11-12 00:53:49,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:49 BoogieIcfgContainer [2023-11-12 00:53:49,114 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:49,116 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:49,117 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:49,120 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:49,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:47" (1/3) ... [2023-11-12 00:53:49,121 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0c6e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:49, skipping insertion in model container [2023-11-12 00:53:49,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:47" (2/3) ... [2023-11-12 00:53:49,122 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0c6e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:49, skipping insertion in model container [2023-11-12 00:53:49,122 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:49" (3/3) ... [2023-11-12 00:53:49,124 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2023-11-12 00:53:49,133 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:53:49,145 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:49,145 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-12 00:53:49,146 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:53:49,278 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-11-12 00:53:49,327 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:53:49,348 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 523 places, 540 transitions, 1101 flow [2023-11-12 00:53:49,354 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 523 places, 540 transitions, 1101 flow [2023-11-12 00:53:49,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 523 places, 540 transitions, 1101 flow [2023-11-12 00:53:49,649 INFO L124 PetriNetUnfolderBase]: 27/537 cut-off events. [2023-11-12 00:53:49,674 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2023-11-12 00:53:49,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 550 conditions, 537 events. 27/537 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 757 event pairs, 0 based on Foata normal form. 0/463 useless extension candidates. Maximal degree in co-relation 396. Up to 2 conditions per place. [2023-11-12 00:53:49,707 INFO L119 LiptonReduction]: Number of co-enabled transitions 21474 [2023-11-12 00:54:13,102 INFO L134 LiptonReduction]: Checked pairs total: 182373 [2023-11-12 00:54:13,103 INFO L136 LiptonReduction]: Total number of compositions: 583 [2023-11-12 00:54:13,114 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 158 places, 158 transitions, 337 flow [2023-11-12 00:54:23,415 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:23,445 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:54:23,455 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=FINITE_AUTOMATA, 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;@149c4f5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:54:23,455 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-12 00:54:23,791 INFO L276 IsEmpty]: Start isEmpty. Operand has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:23,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 00:54:23,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:23,799 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 00:54:23,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 68 more)] === [2023-11-12 00:54:23,812 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:23,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1936, now seen corresponding path program 1 times [2023-11-12 00:54:23,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:23,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459778824] [2023-11-12 00:54:23,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:23,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:23,968 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:54:23,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459778824] [2023-11-12 00:54:23,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459778824] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:23,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:23,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 00:54:23,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049453376] [2023-11-12 00:54:23,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:23,978 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:54:23,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:54:24,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:54:24,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:54:24,436 INFO L87 Difference]: Start difference. First operand has 232483 states, 231229 states have (on average 3.955598129992345) internal successors, (914649), 232482 states have internal predecessors, (914649), 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) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:54:28,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:28,024 INFO L93 Difference]: Finished difference Result 147589 states and 565341 transitions. [2023-11-12 00:54:28,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:54:28,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 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) Word has length 1 [2023-11-12 00:54:28,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted.