./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 30e01a73 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_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire --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 cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:15,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:15,404 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-23 21:12:15,415 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:15,416 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:15,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:15,455 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:15,456 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:15,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:15,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:15,463 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:15,464 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:15,464 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:15,466 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:15,467 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:15,467 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:15,468 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:15,468 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:15,469 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:15,469 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:15,471 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:15,472 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:15,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:15,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:15,474 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:15,475 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:15,475 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:15,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:15,476 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:15,476 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:15,478 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:15,478 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-23 21:12:15,478 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:12:15,479 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:15,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:15,489 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:15,490 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:15,490 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:15,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:15,491 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:15,491 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:15,491 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:15,492 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:15,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:15,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:15,492 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:15,492 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:15,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:15,493 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_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cdf629ba70521b99830442583c87012a34d164ca28f01f7e59d76ae2f1e525ff [2023-11-23 21:12:15,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:15,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:15,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:15,845 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:15,845 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:15,847 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2023-11-23 21:12:19,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:19,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:19,403 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-1.i [2023-11-23 21:12:19,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/data/a99fede65/eff515ba176a405f8798bbeaae3934cb/FLAGac2cf217c [2023-11-23 21:12:19,438 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/data/a99fede65/eff515ba176a405f8798bbeaae3934cb [2023-11-23 21:12:19,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:19,442 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:19,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:19,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:19,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:19,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:19" (1/1) ... [2023-11-23 21:12:19,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64cb1651 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:19, skipping insertion in model container [2023-11-23 21:12:19,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:19" (1/1) ... [2023-11-23 21:12:19,497 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:19,901 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:19,912 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:19,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:20,001 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:20,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20 WrapperNode [2023-11-23 21:12:20,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:20,004 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:20,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:20,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:20,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,058 INFO L138 Inliner]: procedures = 170, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2023-11-23 21:12:20,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:20,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:20,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:20,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:20,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,088 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,117 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:20,124 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:20,124 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:20,124 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:20,125 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (1/1) ... [2023-11-23 21:12:20,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:20,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:20,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:20,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:20,212 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-23 21:12:20,213 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-23 21:12:20,213 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-23 21:12:20,213 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-23 21:12:20,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:12:20,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:12:20,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:12:20,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:20,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:20,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:20,219 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 21:12:20,358 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:20,360 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:20,572 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:20,586 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:20,586 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:12:20,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:20 BoogieIcfgContainer [2023-11-23 21:12:20,588 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:20,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:20,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:20,594 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:20,594 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:19" (1/3) ... [2023-11-23 21:12:20,595 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d20ace0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:20, skipping insertion in model container [2023-11-23 21:12:20,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:20" (2/3) ... [2023-11-23 21:12:20,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d20ace0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:20, skipping insertion in model container [2023-11-23 21:12:20,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:20" (3/3) ... [2023-11-23 21:12:20,597 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2023-11-23 21:12:20,612 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 21:12:20,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:20,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-23 21:12:20,642 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 21:12:20,722 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-23 21:12:20,760 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 117 places, 116 transitions, 240 flow [2023-11-23 21:12:21,149 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6987 states, 6952 states have (on average 2.9200230149597237) internal successors, (20300), 6986 states have internal predecessors, (20300), 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) [2023-11-23 21:12:21,177 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:21,185 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;@36944c6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:21,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-23 21:12:21,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 6987 states, 6952 states have (on average 2.9200230149597237) internal successors, (20300), 6986 states have internal predecessors, (20300), 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) [2023-11-23 21:12:21,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-23 21:12:21,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:21,217 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:21,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:21,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:21,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1316546796, now seen corresponding path program 1 times [2023-11-23 21:12:21,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:21,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137303497] [2023-11-23 21:12:21,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:21,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:21,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:21,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:21,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137303497] [2023-11-23 21:12:21,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137303497] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:21,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:21,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:21,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073188837] [2023-11-23 21:12:21,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:21,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:21,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:21,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:21,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:21,593 INFO L87 Difference]: Start difference. First operand has 6987 states, 6952 states have (on average 2.9200230149597237) internal successors, (20300), 6986 states have internal predecessors, (20300), 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 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-23 21:12:21,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:21,771 INFO L93 Difference]: Finished difference Result 6035 states and 16699 transitions. [2023-11-23 21:12:21,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:21,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2023-11-23 21:12:21,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:21,849 INFO L225 Difference]: With dead ends: 6035 [2023-11-23 21:12:21,850 INFO L226 Difference]: Without dead ends: 6034 [2023-11-23 21:12:21,852 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 [2023-11-23 21:12:21,857 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 1 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:21,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 194 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:21,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6034 states. [2023-11-23 21:12:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6034 to 6034. [2023-11-23 21:12:22,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6034 states, 5991 states have (on average 2.787180771156735) internal successors, (16698), 6033 states have internal predecessors, (16698), 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) [2023-11-23 21:12:22,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6034 states to 6034 states and 16698 transitions. [2023-11-23 21:12:22,295 INFO L78 Accepts]: Start accepts. Automaton has 6034 states and 16698 transitions. Word has length 19 [2023-11-23 21:12:22,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:22,296 INFO L495 AbstractCegarLoop]: Abstraction has 6034 states and 16698 transitions. [2023-11-23 21:12:22,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-23 21:12:22,297 INFO L276 IsEmpty]: Start isEmpty. Operand 6034 states and 16698 transitions. [2023-11-23 21:12:22,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-23 21:12:22,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:22,299 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:12:22,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:22,301 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:22,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:22,302 INFO L85 PathProgramCache]: Analyzing trace with hash -856069271, now seen corresponding path program 1 times [2023-11-23 21:12:22,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:22,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435939118] [2023-11-23 21:12:22,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:22,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:22,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:22,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:22,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435939118] [2023-11-23 21:12:22,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435939118] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:22,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:22,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:22,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848644633] [2023-11-23 21:12:22,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:22,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:22,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:22,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:22,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:22,445 INFO L87 Difference]: Start difference. First operand 6034 states and 16698 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-23 21:12:22,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:22,589 INFO L93 Difference]: Finished difference Result 6033 states and 16697 transitions. [2023-11-23 21:12:22,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:22,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2023-11-23 21:12:22,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:22,643 INFO L225 Difference]: With dead ends: 6033 [2023-11-23 21:12:22,644 INFO L226 Difference]: Without dead ends: 6033 [2023-11-23 21:12:22,645 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 [2023-11-23 21:12:22,646 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 2 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:22,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 186 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:12:22,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2023-11-23 21:12:22,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 6033. [2023-11-23 21:12:22,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6033 states, 5991 states have (on average 2.7870138541145053) internal successors, (16697), 6032 states have internal predecessors, (16697), 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) [2023-11-23 21:12:22,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6033 states to 6033 states and 16697 transitions. [2023-11-23 21:12:22,947 INFO L78 Accepts]: Start accepts. Automaton has 6033 states and 16697 transitions. Word has length 25 [2023-11-23 21:12:22,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:22,947 INFO L495 AbstractCegarLoop]: Abstraction has 6033 states and 16697 transitions. [2023-11-23 21:12:22,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 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) [2023-11-23 21:12:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 6033 states and 16697 transitions. [2023-11-23 21:12:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-23 21:12:22,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:22,949 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:12:22,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:12:22,950 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:22,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:22,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1836531212, now seen corresponding path program 1 times [2023-11-23 21:12:22,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:22,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112502324] [2023-11-23 21:12:22,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:22,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:23,011 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112502324] [2023-11-23 21:12:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112502324] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:23,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:23,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:23,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545805140] [2023-11-23 21:12:23,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:23,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:23,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:23,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:23,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:23,014 INFO L87 Difference]: Start difference. First operand 6033 states and 16697 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-23 21:12:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:23,086 INFO L93 Difference]: Finished difference Result 5419 states and 14967 transitions. [2023-11-23 21:12:23,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:23,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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 29 [2023-11-23 21:12:23,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:23,130 INFO L225 Difference]: With dead ends: 5419 [2023-11-23 21:12:23,130 INFO L226 Difference]: Without dead ends: 5339 [2023-11-23 21:12:23,130 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 [2023-11-23 21:12:23,132 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 70 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:23,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 120 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:23,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5339 states. [2023-11-23 21:12:23,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5339 to 5339. [2023-11-23 21:12:23,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5339 states, 5322 states have (on average 2.7709507703870724) internal successors, (14747), 5338 states have internal predecessors, (14747), 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) [2023-11-23 21:12:23,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5339 states to 5339 states and 14747 transitions. [2023-11-23 21:12:23,453 INFO L78 Accepts]: Start accepts. Automaton has 5339 states and 14747 transitions. Word has length 29 [2023-11-23 21:12:23,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:23,453 INFO L495 AbstractCegarLoop]: Abstraction has 5339 states and 14747 transitions. [2023-11-23 21:12:23,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-23 21:12:23,454 INFO L276 IsEmpty]: Start isEmpty. Operand 5339 states and 14747 transitions. [2023-11-23 21:12:23,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-23 21:12:23,461 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:23,461 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:12:23,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 21:12:23,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:23,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:23,471 INFO L85 PathProgramCache]: Analyzing trace with hash 433726586, now seen corresponding path program 1 times [2023-11-23 21:12:23,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:23,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981833441] [2023-11-23 21:12:23,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:23,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:23,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:23,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:23,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981833441] [2023-11-23 21:12:23,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981833441] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:23,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:23,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:23,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874192411] [2023-11-23 21:12:23,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:23,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:23,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:23,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:23,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:23,620 INFO L87 Difference]: Start difference. First operand 5339 states and 14747 transitions. Second operand has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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) [2023-11-23 21:12:23,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:23,796 INFO L93 Difference]: Finished difference Result 5964 states and 16183 transitions. [2023-11-23 21:12:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:23,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2023-11-23 21:12:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:23,865 INFO L225 Difference]: With dead ends: 5964 [2023-11-23 21:12:23,865 INFO L226 Difference]: Without dead ends: 5844 [2023-11-23 21:12:23,865 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 [2023-11-23 21:12:23,878 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 50 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:23,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 213 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:23,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5844 states. [2023-11-23 21:12:24,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5844 to 4739. [2023-11-23 21:12:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4739 states, 4729 states have (on average 2.754705011630366) internal successors, (13027), 4738 states have internal predecessors, (13027), 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) [2023-11-23 21:12:24,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4739 states to 4739 states and 13027 transitions. [2023-11-23 21:12:24,206 INFO L78 Accepts]: Start accepts. Automaton has 4739 states and 13027 transitions. Word has length 45 [2023-11-23 21:12:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:24,208 INFO L495 AbstractCegarLoop]: Abstraction has 4739 states and 13027 transitions. [2023-11-23 21:12:24,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.5) internal successors, (45), 3 states have internal predecessors, (45), 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) [2023-11-23 21:12:24,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4739 states and 13027 transitions. [2023-11-23 21:12:24,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 21:12:24,222 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:24,222 INFO L195 NwaCegarLoop]: 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] [2023-11-23 21:12:24,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 21:12:24,223 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:24,225 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:24,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1494223308, now seen corresponding path program 1 times [2023-11-23 21:12:24,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:24,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567700800] [2023-11-23 21:12:24,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:24,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:24,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:24,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:24,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:24,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567700800] [2023-11-23 21:12:24,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567700800] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:24,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:24,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:12:24,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276645697] [2023-11-23 21:12:24,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:24,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:24,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:24,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:24,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:24,374 INFO L87 Difference]: Start difference. First operand 4739 states and 13027 transitions. Second operand has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-23 21:12:24,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:24,479 INFO L93 Difference]: Finished difference Result 5128 states and 14005 transitions. [2023-11-23 21:12:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:24,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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 61 [2023-11-23 21:12:24,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:24,500 INFO L225 Difference]: With dead ends: 5128 [2023-11-23 21:12:24,501 INFO L226 Difference]: Without dead ends: 3958 [2023-11-23 21:12:24,501 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 [2023-11-23 21:12:24,502 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 38 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:24,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 218 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:24,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2023-11-23 21:12:24,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3776. [2023-11-23 21:12:24,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3768 states have (on average 2.682059447983015) internal successors, (10106), 3775 states have internal predecessors, (10106), 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) [2023-11-23 21:12:24,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 10106 transitions. [2023-11-23 21:12:24,685 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 10106 transitions. Word has length 61 [2023-11-23 21:12:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:24,685 INFO L495 AbstractCegarLoop]: Abstraction has 3776 states and 10106 transitions. [2023-11-23 21:12:24,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.5) internal successors, (61), 3 states have internal predecessors, (61), 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) [2023-11-23 21:12:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 10106 transitions. [2023-11-23 21:12:24,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-23 21:12:24,688 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:24,688 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:24,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 21:12:24,689 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:24,689 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:24,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1429534603, now seen corresponding path program 1 times [2023-11-23 21:12:24,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:24,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163845307] [2023-11-23 21:12:24,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:24,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:24,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:24,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163845307] [2023-11-23 21:12:24,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163845307] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:24,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:24,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 21:12:24,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33597044] [2023-11-23 21:12:24,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:24,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 21:12:24,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:24,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 21:12:24,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:12:24,825 INFO L87 Difference]: Start difference. First operand 3776 states and 10106 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-11-23 21:12:24,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:24,903 INFO L93 Difference]: Finished difference Result 3780 states and 10109 transitions. [2023-11-23 21:12:24,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:12:24,904 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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 63 [2023-11-23 21:12:24,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:24,918 INFO L225 Difference]: With dead ends: 3780 [2023-11-23 21:12:24,918 INFO L226 Difference]: Without dead ends: 3776 [2023-11-23 21:12:24,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 21:12:24,919 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:24,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 374 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:24,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3776 states. [2023-11-23 21:12:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3776 to 3776. [2023-11-23 21:12:25,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3768 states have (on average 2.6817940552016983) internal successors, (10105), 3775 states have internal predecessors, (10105), 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) [2023-11-23 21:12:25,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 10105 transitions. [2023-11-23 21:12:25,141 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 10105 transitions. Word has length 63 [2023-11-23 21:12:25,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:25,142 INFO L495 AbstractCegarLoop]: Abstraction has 3776 states and 10105 transitions. [2023-11-23 21:12:25,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 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) [2023-11-23 21:12:25,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 10105 transitions. [2023-11-23 21:12:25,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-23 21:12:25,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:25,147 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:25,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 21:12:25,148 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-23 21:12:25,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:25,149 INFO L85 PathProgramCache]: Analyzing trace with hash 2116976365, now seen corresponding path program 1 times [2023-11-23 21:12:25,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:25,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601863693] [2023-11-23 21:12:25,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:25,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:25,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:12:25,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:25,256 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:12:25,257 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:12:25,258 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err1ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-23 21:12:25,260 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-23 21:12:25,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-23 21:12:25,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-23 21:12:25,261 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-23 21:12:25,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-23 21:12:25,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-11-23 21:12:25,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-23 21:12:25,262 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-23 21:12:25,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-23 21:12:25,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2023-11-23 21:12:25,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2023-11-23 21:12:25,263 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-23 21:12:25,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-23 21:12:25,264 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-23 21:12:25,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 21:12:25,268 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:25,275 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-23 21:12:25,276 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:12:25,328 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-23 21:12:25,329 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 21:12:25,330 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,331 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,332 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-23 21:12:25,333 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-23 21:12:25,334 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,335 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:12:25 BasicIcfg [2023-11-23 21:12:25,343 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:12:25,344 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:12:25,344 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:12:25,345 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:12:25,345 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:20" (3/4) ... [2023-11-23 21:12:25,347 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:12:25,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:12:25,349 INFO L158 Benchmark]: Toolchain (without parser) took 5906.66ms. Allocated memory was 153.1MB in the beginning and 580.9MB in the end (delta: 427.8MB). Free memory was 121.9MB in the beginning and 419.7MB in the end (delta: -297.8MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. [2023-11-23 21:12:25,349 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:25,350 INFO L158 Benchmark]: CACSL2BoogieTranslator took 559.06ms. Allocated memory is still 153.1MB. Free memory was 121.8MB in the beginning and 102.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-23 21:12:25,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.93ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 100.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:25,350 INFO L158 Benchmark]: Boogie Preprocessor took 63.85ms. Allocated memory is still 153.1MB. Free memory was 100.1MB in the beginning and 98.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:25,351 INFO L158 Benchmark]: RCFGBuilder took 464.05ms. Allocated memory is still 153.1MB. Free memory was 98.4MB in the beginning and 84.0MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:12:25,351 INFO L158 Benchmark]: TraceAbstraction took 4753.18ms. Allocated memory was 153.1MB in the beginning and 580.9MB in the end (delta: 427.8MB). Free memory was 83.1MB in the beginning and 420.8MB in the end (delta: -337.7MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. [2023-11-23 21:12:25,352 INFO L158 Benchmark]: Witness Printer took 4.24ms. Allocated memory is still 580.9MB. Free memory was 420.8MB in the beginning and 419.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:25,354 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 69.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 559.06ms. Allocated memory is still 153.1MB. Free memory was 121.8MB in the beginning and 102.2MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.93ms. Allocated memory is still 153.1MB. Free memory was 102.2MB in the beginning and 100.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.85ms. Allocated memory is still 153.1MB. Free memory was 100.1MB in the beginning and 98.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 464.05ms. Allocated memory is still 153.1MB. Free memory was 98.4MB in the beginning and 84.0MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4753.18ms. Allocated memory was 153.1MB in the beginning and 580.9MB in the end (delta: 427.8MB). Free memory was 83.1MB in the beginning and 420.8MB in the end (delta: -337.7MB). Peak memory consumption was 90.0MB. Max. memory is 16.1GB. * Witness Printer took 4.24ms. Allocated memory is still 580.9MB. Free memory was 420.8MB in the beginning and 419.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 698]: Data race detected [2023-11-23 21:12:25,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 21:12:25,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-23 21:12:25,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,392 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,392 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-23 21:12:25,393 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-23 21:12:25,394 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,394 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,395 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,419 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-23 21:12:25,419 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-23 21:12:25,420 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,420 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short7 could not be translated [2023-11-23 21:12:25,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-23 21:12:25,422 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-23 21:12:25,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,423 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-23 21:12:25,424 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated Data race detected The following path leads to a data race: [L690] 0 volatile int x; VAL [x=0] [L691] 0 volatile int n; VAL [n=0, x=0] [L701] 0 pthread_t t1, t2; VAL [\old(argc)=51, argc=51, argv={53:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L702] 0 int i; VAL [\old(argc)=51, argc=51, argv={53:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L703] 0 x = 0 VAL [\old(argc)=51, argc=51, argv={53:50}, n=0, t1={5:0}, t2={3:0}, x=0] [L704] 0 n = __VERIFIER_nondet_uint() VAL [\old(argc)=51, argc=51, argv={53:50}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 VAL [\old(argc)=51, argc=51, argv={53:50}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=51, argc=51, argv={53:50}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n < 40 VAL [\old(argc)=51, argc=51, argv={53:50}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] EXPR 0 n >= 20 && n < 40 VAL [\old(argc)=51, argc=51, argv={53:50}, n=39, t1={5:0}, t2={3:0}, x=0] [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, n=39, x=0] [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=51, argc=51, argv={53:50}, n=39, t1={5:0}, t2={3:0}, x=0] [L707] 0 i = 0 VAL [\old(argc)=51, argc=51, argv={53:50}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] 0 i < n VAL [\old(argc)=51, argc=51, argv={53:50}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L707] COND TRUE 0 i < n VAL [\old(argc)=51, argc=51, argv={53:50}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=51, arg={0:0}, argc=51, argv={53:50}, i=0, n=39, t1={5:0}, t2={3:0}, x=0] [L696] 2 int t; VAL [arg={0:0}, arg={0:0}, n=39, x=0] [L697] 2 t = x VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=0] [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=1] [L693] 1 x < n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=39, t=0, x=1] [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=39, t=0, x=1] Now there is a data race on ~x~0 between C: x < n [693] and C: x = t + 1 [698] - UnprovableResult [Line: 697]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 703]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 704]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 707]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 148 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 165 mSDsluCounter, 1305 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 648 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 105 IncrementalHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 657 mSDtfsCounter, 105 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6987occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 1287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 308 NumberOfCodeBlocks, 308 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 253 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-23 21:12:25,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff373f78-86bd-44f2-ab92-34cfd5962048/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE