./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/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_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/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_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/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 d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:13,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:14,049 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:53:14,054 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:14,054 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:14,079 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:14,080 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:14,081 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:14,081 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:14,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:14,083 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:14,083 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:14,084 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:14,084 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:14,085 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:14,085 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:14,086 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:14,086 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:14,087 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:14,087 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:14,087 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:14,093 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:14,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:14,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:14,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:53:14,096 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:14,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:53:14,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:14,097 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:14,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:14,099 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:14,099 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:53:14,100 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:53:14,100 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:53:14,100 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:14,101 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:14,101 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:14,101 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:14,101 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:14,102 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:14,102 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:14,102 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:14,103 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:14,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:14,103 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:14,103 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:14,103 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:14,104 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_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5772eac83993f999ed7a0d2c72e283c734e18136b4020af8f8e407255c20c04 [2023-11-12 00:53:14,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:14,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:14,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:14,467 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:14,468 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:14,469 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-12 00:53:17,617 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:17,905 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:17,906 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/sv-benchmarks/c/goblint-regression/13-privatized_04-priv_multi_true.i [2023-11-12 00:53:17,934 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/data/e0845675c/1e56e369b4a847e7939fbc10e0528dc4/FLAG5b38146cb [2023-11-12 00:53:17,951 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/data/e0845675c/1e56e369b4a847e7939fbc10e0528dc4 [2023-11-12 00:53:17,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:17,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:17,965 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:17,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:17,970 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:17,971 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:17" (1/1) ... [2023-11-12 00:53:17,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c911a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:17, skipping insertion in model container [2023-11-12 00:53:17,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:17" (1/1) ... [2023-11-12 00:53:18,041 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:18,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:18,574 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:53:18,644 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:18,709 WARN L672 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:18,717 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:53:18,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18 WrapperNode [2023-11-12 00:53:18,718 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:18,720 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:18,720 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:53:18,720 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:53:18,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,752 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,818 INFO L138 Inliner]: procedures = 271, calls = 46, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 118 [2023-11-12 00:53:18,819 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:18,819 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:53:18,820 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:53:18,820 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:53:18,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,874 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,895 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,899 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,906 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,909 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:53:18,918 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:53:18,918 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:53:18,918 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:53:18,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (1/1) ... [2023-11-12 00:53:18,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:18,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:18,969 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:53:18,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb304aef-5d47-46e1-b2b8-bd7fc1f9c6df/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:53:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-11-12 00:53:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:53:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure generate [2023-11-12 00:53:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure generate [2023-11-12 00:53:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:53:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:53:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-12 00:53:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:53:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure dispose [2023-11-12 00:53:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dispose [2023-11-12 00:53:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure process [2023-11-12 00:53:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure process [2023-11-12 00:53:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:53:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:53:19,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:53:19,005 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 00:53:19,358 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:53:19,361 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:53:19,742 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:19,753 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:19,753 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 00:53:19,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:19 BoogieIcfgContainer [2023-11-12 00:53:19,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:19,759 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:19,759 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:19,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:19,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:17" (1/3) ... [2023-11-12 00:53:19,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb1f060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:19, skipping insertion in model container [2023-11-12 00:53:19,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:18" (2/3) ... [2023-11-12 00:53:19,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bb1f060 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:19, skipping insertion in model container [2023-11-12 00:53:19,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:19" (3/3) ... [2023-11-12 00:53:19,767 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_04-priv_multi_true.i [2023-11-12 00:53:19,777 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:53:19,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:19,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2023-11-12 00:53:19,788 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:53:19,864 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:53:19,900 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:53:19,915 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 216 places, 220 transitions, 452 flow [2023-11-12 00:53:19,918 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 216 places, 220 transitions, 452 flow [2023-11-12 00:53:19,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 216 places, 220 transitions, 452 flow [2023-11-12 00:53:20,050 INFO L124 PetriNetUnfolderBase]: 14/217 cut-off events. [2023-11-12 00:53:20,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:53:20,063 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227 conditions, 217 events. 14/217 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 536 event pairs, 0 based on Foata normal form. 0/188 useless extension candidates. Maximal degree in co-relation 189. Up to 2 conditions per place. [2023-11-12 00:53:20,081 INFO L119 LiptonReduction]: Number of co-enabled transitions 23212 [2023-11-12 00:53:26,766 INFO L134 LiptonReduction]: Checked pairs total: 162806 [2023-11-12 00:53:26,766 INFO L136 LiptonReduction]: Total number of compositions: 198 [2023-11-12 00:53:26,775 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 93 places, 91 transitions, 194 flow [2023-11-12 00:53:30,439 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 82105 states, 81836 states have (on average 4.254582335402512) internal successors, (348178), 82104 states have internal predecessors, (348178), 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 00:53:30,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:53:30,473 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;@10a69cbe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:53:30,473 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-11-12 00:53:30,851 INFO L276 IsEmpty]: Start isEmpty. Operand has 82105 states, 81836 states have (on average 4.254582335402512) internal successors, (348178), 82104 states have internal predecessors, (348178), 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 00:53:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:53:30,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:30,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:53:30,858 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting processErr5ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-12 00:53:30,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:30,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1574992265, now seen corresponding path program 1 times [2023-11-12 00:53:30,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:30,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405920002] [2023-11-12 00:53:30,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:30,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:31,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:31,427 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 00:53:31,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:31,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405920002] [2023-11-12 00:53:31,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405920002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:31,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:31,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-12 00:53:31,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819148192] [2023-11-12 00:53:31,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:31,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:53:31,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:53:31,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:53:31,612 INFO L87 Difference]: Start difference. First operand has 82105 states, 81836 states have (on average 4.254582335402512) internal successors, (348178), 82104 states have internal predecessors, (348178), 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 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 00:53:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:34,385 INFO L93 Difference]: Finished difference Result 72074 states and 295154 transitions. [2023-11-12 00:53:34,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:53:34,388 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2023-11-12 00:53:34,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:35,639 INFO L225 Difference]: With dead ends: 72074 [2023-11-12 00:53:35,640 INFO L226 Difference]: Without dead ends: 72074 [2023-11-12 00:53:35,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:53:35,648 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:35,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:53:36,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72074 states. [2023-11-12 00:53:39,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72074 to 72074. [2023-11-12 00:53:39,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72074 states, 71930 states have (on average 4.103350479632977) internal successors, (295154), 72073 states have internal predecessors, (295154), 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 00:53:41,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72074 states to 72074 states and 295154 transitions. [2023-11-12 00:53:41,134 INFO L78 Accepts]: Start accepts. Automaton has 72074 states and 295154 transitions. Word has length 6 [2023-11-12 00:53:41,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:41,134 INFO L495 AbstractCegarLoop]: Abstraction has 72074 states and 295154 transitions. [2023-11-12 00:53:41,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 00:53:41,135 INFO L276 IsEmpty]: Start isEmpty. Operand 72074 states and 295154 transitions. [2023-11-12 00:53:41,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:53:41,136 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:41,136 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:41,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:53:41,137 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting generateErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-12 00:53:41,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:41,138 INFO L85 PathProgramCache]: Analyzing trace with hash -1600438982, now seen corresponding path program 1 times [2023-11-12 00:53:41,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:41,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818061478] [2023-11-12 00:53:41,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:41,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:41,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:41,237 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 00:53:41,238 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:41,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818061478] [2023-11-12 00:53:41,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818061478] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:41,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:41,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:41,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964942098] [2023-11-12 00:53:41,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:41,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:41,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:41,243 INFO L87 Difference]: Start difference. First operand 72074 states and 295154 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 00:53:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:42,904 INFO L93 Difference]: Finished difference Result 84038 states and 344169 transitions. [2023-11-12 00:53:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2023-11-12 00:53:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:43,496 INFO L225 Difference]: With dead ends: 84038 [2023-11-12 00:53:43,497 INFO L226 Difference]: Without dead ends: 84038 [2023-11-12 00:53:43,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:43,500 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 63 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:43,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 86 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:53:44,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84038 states. [2023-11-12 00:53:47,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84038 to 78048. [2023-11-12 00:53:47,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78048 states, 77904 states have (on average 4.102895871842267) internal successors, (319632), 78047 states have internal predecessors, (319632), 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 00:53:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78048 states to 78048 states and 319632 transitions. [2023-11-12 00:53:48,790 INFO L78 Accepts]: Start accepts. Automaton has 78048 states and 319632 transitions. Word has length 7 [2023-11-12 00:53:48,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:48,790 INFO L495 AbstractCegarLoop]: Abstraction has 78048 states and 319632 transitions. [2023-11-12 00:53:48,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 00:53:48,791 INFO L276 IsEmpty]: Start isEmpty. Operand 78048 states and 319632 transitions. [2023-11-12 00:53:48,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:53:48,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:48,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:48,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:53:48,793 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting processErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-12 00:53:48,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:48,793 INFO L85 PathProgramCache]: Analyzing trace with hash -1739197285, now seen corresponding path program 1 times [2023-11-12 00:53:48,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:48,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567831072] [2023-11-12 00:53:48,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:48,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:48,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:48,904 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 00:53:48,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:48,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567831072] [2023-11-12 00:53:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [567831072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:48,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:48,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:48,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663595151] [2023-11-12 00:53:48,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:48,912 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:48,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:48,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:48,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:48,914 INFO L87 Difference]: Start difference. First operand 78048 states and 319632 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 00:53:50,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:50,999 INFO L93 Difference]: Finished difference Result 137564 states and 553398 transitions. [2023-11-12 00:53:50,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:50,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2023-11-12 00:53:50,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:52,979 INFO L225 Difference]: With dead ends: 137564 [2023-11-12 00:53:52,980 INFO L226 Difference]: Without dead ends: 137564 [2023-11-12 00:53:52,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:52,985 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 65 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:52,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 66 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:53:53,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137564 states. [2023-11-12 00:53:56,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137564 to 87600. [2023-11-12 00:53:56,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87600 states, 87464 states have (on average 4.069331382054331) internal successors, (355920), 87599 states have internal predecessors, (355920), 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 00:53:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87600 states to 87600 states and 355920 transitions. [2023-11-12 00:53:57,288 INFO L78 Accepts]: Start accepts. Automaton has 87600 states and 355920 transitions. Word has length 8 [2023-11-12 00:53:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:57,288 INFO L495 AbstractCegarLoop]: Abstraction has 87600 states and 355920 transitions. [2023-11-12 00:53:57,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 00:53:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 87600 states and 355920 transitions. [2023-11-12 00:53:57,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:53:57,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:57,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:57,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:53:57,292 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting disposeErr0ASSERT_VIOLATIONDATA_RACE === [processErr0ASSERT_VIOLATIONDATA_RACE, processErr1ASSERT_VIOLATIONDATA_RACE, processErr2ASSERT_VIOLATIONDATA_RACE, processErr3ASSERT_VIOLATIONDATA_RACE (and 27 more)] === [2023-11-12 00:53:57,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:57,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1707662146, now seen corresponding path program 1 times [2023-11-12 00:53:57,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:57,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506104485] [2023-11-12 00:53:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:57,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:57,411 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 00:53:57,411 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:57,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506104485] [2023-11-12 00:53:57,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506104485] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:57,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:57,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:57,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655698639] [2023-11-12 00:53:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:57,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:57,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:57,414 INFO L87 Difference]: Start difference. First operand 87600 states and 355920 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 00:53:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:59,974 INFO L93 Difference]: Finished difference Result 163175 states and 648464 transitions. [2023-11-12 00:53:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:59,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2023-11-12 00:53:59,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted.