./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.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_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/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_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/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_a2260cf1-4539-4217-b846-e296b42551a0/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 9d7936e5b6ec9509cab6289f8b3da6dd07c923c681ccf9d629892aaea9fa54f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:10:09,189 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:10:09,268 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-12 00:10:09,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:10:09,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:10:09,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:10:09,305 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:10:09,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:10:09,306 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:10:09,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:10:09,307 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:10:09,308 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:10:09,309 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:10:09,309 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:10:09,310 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:10:09,310 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:10:09,311 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:10:09,311 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:10:09,312 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:10:09,313 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:10:09,313 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:10:09,320 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:10:09,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:10:09,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:10:09,322 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:10:09,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:10:09,322 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:10:09,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:10:09,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:10:09,324 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:10:09,324 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:10:09,324 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-12 00:10:09,325 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:10:09,325 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:10:09,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:10:09,326 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:10:09,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:10:09,329 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:10:09,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:09,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:10:09,329 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:10:09,330 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:10:09,330 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:10:09,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:10:09,331 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:10:09,331 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:10:09,331 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:10:09,332 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_a2260cf1-4539-4217-b846-e296b42551a0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d7936e5b6ec9509cab6289f8b3da6dd07c923c681ccf9d629892aaea9fa54f9 [2023-11-12 00:10:09,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:10:09,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:10:09,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:10:09,778 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:10:09,779 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:10:09,781 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2023-11-12 00:10:13,217 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:10:13,677 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:10:13,678 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/sv-benchmarks/c/pthread-nondet/nondet-loop-bound-2.i [2023-11-12 00:10:13,698 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/data/93d59bc2b/f9510c4350b64e25bad1851ffce46e53/FLAG8a82d88d3 [2023-11-12 00:10:13,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/data/93d59bc2b/f9510c4350b64e25bad1851ffce46e53 [2023-11-12 00:10:13,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:10:13,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:10:13,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:13,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:10:13,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:10:13,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:13" (1/1) ... [2023-11-12 00:10:13,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4073dfd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:13, skipping insertion in model container [2023-11-12 00:10:13,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:10:13" (1/1) ... [2023-11-12 00:10:13,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:10:14,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:14,298 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:10:14,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:10:14,445 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:10:14,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14 WrapperNode [2023-11-12 00:10:14,446 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:10:14,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:14,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:10:14,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:10:14,458 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,501 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,526 INFO L138 Inliner]: procedures = 170, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 85 [2023-11-12 00:10:14,527 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:10:14,527 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:10:14,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:10:14,528 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:10:14,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,543 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,543 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,567 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,569 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,571 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,575 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:10:14,576 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:10:14,576 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:10:14,577 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:10:14,578 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (1/1) ... [2023-11-12 00:10:14,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:10:14,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:10:14,619 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:10:14,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:10:14,676 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-12 00:10:14,677 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-12 00:10:14,677 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-12 00:10:14,678 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-12 00:10:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:10:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:10:14,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:10:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:10:14,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:10:14,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:10:14,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:10:14,687 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 00:10:14,915 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:10:14,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:10:15,310 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:10:15,320 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:10:15,325 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:10:15,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:15 BoogieIcfgContainer [2023-11-12 00:10:15,330 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:10:15,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:10:15,335 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:10:15,339 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:10:15,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:10:13" (1/3) ... [2023-11-12 00:10:15,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf5a4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:15, skipping insertion in model container [2023-11-12 00:10:15,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:10:14" (2/3) ... [2023-11-12 00:10:15,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf5a4bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:10:15, skipping insertion in model container [2023-11-12 00:10:15,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:15" (3/3) ... [2023-11-12 00:10:15,346 INFO L112 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2023-11-12 00:10:15,358 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-12 00:10:15,371 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:10:15,372 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2023-11-12 00:10:15,372 INFO L521 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-12 00:10:15,441 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-12 00:10:15,482 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-12 00:10:15,504 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 118 places, 117 transitions, 242 flow [2023-11-12 00:10:15,510 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 117 transitions, 242 flow [2023-11-12 00:10:15,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 117 transitions, 242 flow [2023-11-12 00:10:15,591 INFO L124 PetriNetUnfolderBase]: 6/134 cut-off events. [2023-11-12 00:10:15,591 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-12 00:10:15,599 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 134 events. 6/134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 207 event pairs, 0 based on Foata normal form. 0/116 useless extension candidates. Maximal degree in co-relation 98. Up to 4 conditions per place. [2023-11-12 00:10:15,604 INFO L119 LiptonReduction]: Number of co-enabled transitions 2428 [2023-11-12 00:10:20,910 INFO L134 LiptonReduction]: Checked pairs total: 4891 [2023-11-12 00:10:20,911 INFO L136 LiptonReduction]: Total number of compositions: 138 [2023-11-12 00:10:20,920 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 27 transitions, 62 flow [2023-11-12 00:10:20,973 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 292 states, 255 states have (on average 3.0941176470588236) internal successors, (789), 291 states have internal predecessors, (789), 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 00:10:20,999 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:10:21,011 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;@7b781e59, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:10:21,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-12 00:10:21,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 255 states have (on average 3.0941176470588236) internal successors, (789), 291 states have internal predecessors, (789), 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 00:10:21,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2023-11-12 00:10:21,025 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:21,026 INFO L195 NwaCegarLoop]: trace histogram [1] [2023-11-12 00:10:21,027 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)] === [2023-11-12 00:10:21,036 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:21,036 INFO L85 PathProgramCache]: Analyzing trace with hash 451, now seen corresponding path program 1 times [2023-11-12 00:10:21,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:21,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020135204] [2023-11-12 00:10:21,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:21,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:21,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:21,183 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 00:10:21,184 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:21,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020135204] [2023-11-12 00:10:21,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020135204] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:21,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:21,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-11-12 00:10:21,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975837664] [2023-11-12 00:10:21,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:21,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:10:21,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:21,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:10:21,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:10:21,225 INFO L87 Difference]: Start difference. First operand has 292 states, 255 states have (on average 3.0941176470588236) internal successors, (789), 291 states have internal predecessors, (789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:21,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:21,292 INFO L93 Difference]: Finished difference Result 175 states and 407 transitions. [2023-11-12 00:10:21,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:10:21,298 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2023-11-12 00:10:21,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:21,318 INFO L225 Difference]: With dead ends: 175 [2023-11-12 00:10:21,318 INFO L226 Difference]: Without dead ends: 173 [2023-11-12 00:10:21,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 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 00:10:21,327 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:21,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:21,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2023-11-12 00:10:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2023-11-12 00:10:21,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 165 states have (on average 2.4363636363636365) internal successors, (402), 172 states have internal predecessors, (402), 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 00:10:21,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 402 transitions. [2023-11-12 00:10:21,416 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 402 transitions. Word has length 1 [2023-11-12 00:10:21,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:21,417 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 402 transitions. [2023-11-12 00:10:21,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:21,417 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 402 transitions. [2023-11-12 00:10:21,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:10:21,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:21,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:10:21,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:10:21,419 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-12 00:10:21,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:21,420 INFO L85 PathProgramCache]: Analyzing trace with hash 14085309, now seen corresponding path program 1 times [2023-11-12 00:10:21,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:21,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135122716] [2023-11-12 00:10:21,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:21,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:21,595 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 00:10:21,595 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:21,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135122716] [2023-11-12 00:10:21,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135122716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:21,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:21,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:21,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733533570] [2023-11-12 00:10:21,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:21,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:21,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:21,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:21,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:21,602 INFO L87 Difference]: Start difference. First operand 173 states and 402 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 00:10:21,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:21,682 INFO L93 Difference]: Finished difference Result 208 states and 469 transitions. [2023-11-12 00:10:21,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:21,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-12 00:10:21,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:21,689 INFO L225 Difference]: With dead ends: 208 [2023-11-12 00:10:21,689 INFO L226 Difference]: Without dead ends: 204 [2023-11-12 00:10:21,690 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 00:10:21,692 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:21,693 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 8 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:10:21,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-12 00:10:21,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 170. [2023-11-12 00:10:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 163 states have (on average 2.4171779141104293) internal successors, (394), 169 states have internal predecessors, (394), 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 00:10:21,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 394 transitions. [2023-11-12 00:10:21,719 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 394 transitions. Word has length 4 [2023-11-12 00:10:21,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:21,720 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 394 transitions. [2023-11-12 00:10:21,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 00:10:21,720 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 394 transitions. [2023-11-12 00:10:21,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:10:21,721 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:21,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:21,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:10:21,722 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-12 00:10:21,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:21,723 INFO L85 PathProgramCache]: Analyzing trace with hash -1698280193, now seen corresponding path program 1 times [2023-11-12 00:10:21,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:21,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360262496] [2023-11-12 00:10:21,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:21,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:10:21,887 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 00:10:21,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:10:21,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360262496] [2023-11-12 00:10:21,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360262496] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:10:21,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:10:21,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:10:21,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448213261] [2023-11-12 00:10:21,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:10:21,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:10:21,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:10:21,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:10:21,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:10:21,902 INFO L87 Difference]: Start difference. First operand 170 states and 394 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 00:10:21,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:21,962 INFO L93 Difference]: Finished difference Result 164 states and 369 transitions. [2023-11-12 00:10:21,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:10:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2023-11-12 00:10:21,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:21,966 INFO L225 Difference]: With dead ends: 164 [2023-11-12 00:10:21,968 INFO L226 Difference]: Without dead ends: 158 [2023-11-12 00:10:21,968 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 00:10:21,971 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:21,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 7 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:10:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-12 00:10:21,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-12 00:10:21,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 153 states have (on average 2.30718954248366) internal successors, (353), 157 states have internal predecessors, (353), 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 00:10:21,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 353 transitions. [2023-11-12 00:10:22,001 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 353 transitions. Word has length 9 [2023-11-12 00:10:22,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:22,001 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 353 transitions. [2023-11-12 00:10:22,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 00:10:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 353 transitions. [2023-11-12 00:10:22,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:10:22,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:10:22,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:10:22,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:10:22,005 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2023-11-12 00:10:22,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:10:22,007 INFO L85 PathProgramCache]: Analyzing trace with hash 473638630, now seen corresponding path program 1 times [2023-11-12 00:10:22,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:10:22,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415216851] [2023-11-12 00:10:22,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:10:22,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:10:22,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:22,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:10:22,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:10:22,142 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:10:22,142 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:10:22,144 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err0ASSERT_VIOLATIONDATA_RACE (14 of 15 remaining) [2023-11-12 00:10:22,146 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2023-11-12 00:10:22,147 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2023-11-12 00:10:22,148 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2023-11-12 00:10:22,151 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2023-11-12 00:10:22,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2023-11-12 00:10:22,152 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2023-11-12 00:10:22,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2023-11-12 00:10:22,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2023-11-12 00:10:22,157 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2023-11-12 00:10:22,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 15 remaining) [2023-11-12 00:10:22,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 15 remaining) [2023-11-12 00:10:22,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2023-11-12 00:10:22,158 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2023-11-12 00:10:22,159 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2023-11-12 00:10:22,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:10:22,162 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 00:10:22,170 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-12 00:10:22,170 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:10:22,224 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-12 00:10:22,226 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 00:10:22,227 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-12 00:10:22,227 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-12 00:10:22,246 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:10:22 BasicIcfg [2023-11-12 00:10:22,246 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:10:22,247 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:10:22,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:10:22,248 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:10:22,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:10:15" (3/4) ... [2023-11-12 00:10:22,254 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:10:22,256 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:10:22,258 INFO L158 Benchmark]: Toolchain (without parser) took 8528.49ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 137.2MB in the beginning and 151.1MB in the end (delta: -13.9MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2023-11-12 00:10:22,259 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:22,260 INFO L158 Benchmark]: CACSL2BoogieTranslator took 711.76ms. Allocated memory is still 167.8MB. Free memory was 137.0MB in the beginning and 121.3MB in the end (delta: 15.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2023-11-12 00:10:22,261 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.18ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 119.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:22,262 INFO L158 Benchmark]: Boogie Preprocessor took 47.75ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 117.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:22,263 INFO L158 Benchmark]: RCFGBuilder took 754.71ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 130.5MB in the end (delta: -13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:22,263 INFO L158 Benchmark]: TraceAbstraction took 6912.17ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 129.7MB in the beginning and 152.1MB in the end (delta: -22.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-11-12 00:10:22,263 INFO L158 Benchmark]: Witness Printer took 8.63ms. Allocated memory is still 201.3MB. Free memory is still 151.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:22,267 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 127.9MB. Free memory is still 102.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 711.76ms. Allocated memory is still 167.8MB. Free memory was 137.0MB in the beginning and 121.3MB in the end (delta: 15.7MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.18ms. Allocated memory is still 167.8MB. Free memory was 121.3MB in the beginning and 119.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.75ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 117.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 754.71ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 130.5MB in the end (delta: -13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 6912.17ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 129.7MB in the beginning and 152.1MB in the end (delta: -22.5MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 8.63ms. Allocated memory is still 201.3MB. Free memory is still 151.1MB. 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~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 The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.4s, 118 PlacesBefore, 31 PlacesAfterwards, 117 TransitionsBefore, 27 TransitionsAfterwards, 2428 CoEnabledTransitionPairs, 7 FixpointIterations, 61 TrivialSequentialCompositions, 52 ConcurrentSequentialCompositions, 8 TrivialYvCompositions, 14 ConcurrentYvCompositions, 3 ChoiceCompositions, 138 TotalNumberOfCompositions, 4891 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3294, independent: 3160, independent conditional: 0, independent unconditional: 3160, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1934, independent: 1900, independent conditional: 0, independent unconditional: 1900, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1934, independent: 1840, independent conditional: 0, independent unconditional: 1840, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 94, independent: 60, independent conditional: 0, independent unconditional: 60, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 169, independent: 92, independent conditional: 0, independent unconditional: 92, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3294, independent: 1260, independent conditional: 0, independent unconditional: 1260, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 1934, unknown conditional: 0, unknown unconditional: 1934] , Statistics on independence cache: Total cache size (in pairs): 107, Positive cache size: 98, Positive conditional cache size: 0, Positive unconditional cache size: 98, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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: 693]: Data race detected [2023-11-12 00:10:22,306 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-12 00:10:22,313 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 00:10:22,315 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-12 00:10:22,316 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-12 00:10:22,327 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-11-12 00:10:22,333 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre11 could not be translated [2023-11-12 00:10:22,335 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet3 could not be translated [2023-11-12 00:10:22,342 WARN L1567 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; [L691] 0 volatile int n; [L701] 0 pthread_t t1, t2; [L702] 0 int i; [L703] 0 x = 0 [L704] 0 n = __VERIFIER_nondet_uint() [L705] EXPR 0 n >= 20 [L705] EXPR 0 n >= 20 && n < 40 [L705] EXPR 0 n < 40 [L705] EXPR 0 n >= 20 && n < 40 [L705] CALL 0 assume_abort_if_not(n >= 20 && n < 40) [L687] COND FALSE 0 !(!cond) [L705] RET 0 assume_abort_if_not(n >= 20 && n < 40) [L706] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [\old(argc)=52, argc=52, argv={49:50}, argv={49:50}, n=20, t1={3:0}, t2={5:0}, x=0] [L707] 0 i = 0 VAL [\old(argc)=52, argc=52, argv={49:50}, argv={49:50}, i=0, n=20, t1={3:0}, t2={5:0}, x=0] [L707] 0 i < n VAL [\old(argc)=52, argc=52, argv={49:50}, argv={49:50}, i=0, n=20, t1={3:0}, t2={5:0}, x=0] [L693] 1 x <= n VAL [arg={0:0}, arg={0:0}, n=20, x=0] [L707] 0 i < n [L707] COND TRUE 0 i < n [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [\old(argc)=52, arg={0:0}, argc=52, argv={49:50}, argv={49:50}, i=0, n=20, t1={3:0}, t2={5:0}, x=0] [L696] 2 int t; [L697] 2 t = x [L698] 2 x = t + 1 VAL [arg={0:0}, arg={0:0}, n=20, t=0, x=1] [L693] 1 x <= n VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, n=20, t=0, x=1] Now there is a data race on ~x~0 between C: x = t + 1 [698] and C: x <= n [693] - 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: 698]: 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, 149 locations, 15 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 82 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 15 mSDtfsCounter, 82 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=292occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 34 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2023-11-12 00:10:22,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2260cf1-4539-4217-b846-e296b42551a0/bin/utaipan-verify-NcY6lQBIFX/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