./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 9bd2c7ff 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_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ --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 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:18:04,914 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:18:05,078 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-19 05:18:05,094 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:18:05,095 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:18:05,161 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:18:05,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:18:05,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:18:05,164 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:18:05,170 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:18:05,171 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:18:05,172 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:18:05,173 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:18:05,175 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:18:05,175 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:18:05,176 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:18:05,177 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:18:05,177 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:18:05,177 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:18:05,178 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:18:05,178 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:18:05,179 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:18:05,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:18:05,181 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:18:05,181 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:18:05,182 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:18:05,182 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:18:05,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:18:05,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:18:05,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:18:05,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:18:05,185 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-19 05:18:05,186 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:18:05,186 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:18:05,186 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:18:05,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:18:05,187 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:18:05,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:18:05,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:05,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:18:05,188 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:18:05,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:18:05,189 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:18:05,189 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:18:05,190 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:18:05,190 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:18:05,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:18:05,190 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_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e7e50acdaac6c5347f0e6861619a1b564ff01a6e5e780f6d69a20f7f739312d [2023-11-19 05:18:05,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:18:05,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:18:05,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:18:05,544 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:18:05,545 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:18:05,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2023-11-19 05:18:09,356 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:18:09,692 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:18:09,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/sv-benchmarks/c/pthread-ext/23_lu-fig2.fixed.i [2023-11-19 05:18:09,718 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/data/c49f56484/a387ab7709f84e9f85125a22e1a8365f/FLAGaea7b1ca8 [2023-11-19 05:18:09,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/data/c49f56484/a387ab7709f84e9f85125a22e1a8365f [2023-11-19 05:18:09,740 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:18:09,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:18:09,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:09,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:18:09,760 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:18:09,761 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:09" (1/1) ... [2023-11-19 05:18:09,762 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@306960c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:09, skipping insertion in model container [2023-11-19 05:18:09,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:09" (1/1) ... [2023-11-19 05:18:09,846 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:18:10,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:10,353 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:18:10,405 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:18:10,465 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:18:10,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10 WrapperNode [2023-11-19 05:18:10,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:18:10,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:10,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:18:10,469 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:18:10,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,506 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,556 INFO L138 Inliner]: procedures = 172, calls = 22, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 145 [2023-11-19 05:18:10,556 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:18:10,557 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:18:10,558 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:18:10,558 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:18:10,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,590 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:18:10,633 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:18:10,633 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:18:10,633 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:18:10,634 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (1/1) ... [2023-11-19 05:18:10,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:18:10,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:18:10,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:18:10,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:18:10,732 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-19 05:18:10,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-19 05:18:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:18:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:18:10,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:18:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:18:10,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:18:10,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:18:10,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:18:10,739 WARN L210 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-19 05:18:10,986 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:18:10,988 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:18:11,362 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:18:11,656 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:18:11,657 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:18:11,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:11 BoogieIcfgContainer [2023-11-19 05:18:11,662 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:18:11,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:18:11,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:18:11,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:18:11,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:09" (1/3) ... [2023-11-19 05:18:11,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c334bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:11, skipping insertion in model container [2023-11-19 05:18:11,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:10" (2/3) ... [2023-11-19 05:18:11,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c334bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:11, skipping insertion in model container [2023-11-19 05:18:11,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:11" (3/3) ... [2023-11-19 05:18:11,675 INFO L112 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2023-11-19 05:18:11,686 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-19 05:18:11,699 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:18:11,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-19 05:18:11,701 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-19 05:18:11,764 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-19 05:18:11,833 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2023-11-19 05:18:11,908 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 77 transitions, 158 flow [2023-11-19 05:18:11,912 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 77 transitions, 158 flow [2023-11-19 05:18:11,914 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 77 transitions, 158 flow [2023-11-19 05:18:11,999 INFO L124 PetriNetUnfolderBase]: 3/76 cut-off events. [2023-11-19 05:18:11,999 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-19 05:18:12,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 103 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2023-11-19 05:18:12,010 INFO L119 LiptonReduction]: Number of co-enabled transitions 1628 [2023-11-19 05:18:14,686 INFO L134 LiptonReduction]: Checked pairs total: 5828 [2023-11-19 05:18:14,686 INFO L136 LiptonReduction]: Total number of compositions: 76 [2023-11-19 05:18:14,696 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 38 transitions, 80 flow [2023-11-19 05:18:14,762 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 305 states, 204 states have (on average 2.965686274509804) internal successors, (605), 304 states have internal predecessors, (605), 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) [2023-11-19 05:18:14,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:18:14,790 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;@8196d36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:18:14,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-19 05:18:14,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 204 states have (on average 2.965686274509804) internal successors, (605), 304 states have internal predecessors, (605), 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) [2023-11-19 05:18:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:18:14,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:14,800 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:18:14,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err8ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-19 05:18:14,813 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:14,814 INFO L85 PathProgramCache]: Analyzing trace with hash 582585, now seen corresponding path program 1 times [2023-11-19 05:18:14,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:14,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987740013] [2023-11-19 05:18:14,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:14,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:18:15,090 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:15,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987740013] [2023-11-19 05:18:15,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987740013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:15,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:15,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 05:18:15,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650889444] [2023-11-19 05:18:15,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:15,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-19 05:18:15,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:15,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-19 05:18:15,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:18:15,133 INFO L87 Difference]: Start difference. First operand has 305 states, 204 states have (on average 2.965686274509804) internal successors, (605), 304 states have internal predecessors, (605), 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 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 05:18:15,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:15,185 INFO L93 Difference]: Finished difference Result 97 states and 180 transitions. [2023-11-19 05:18:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-19 05:18:15,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-19 05:18:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:15,198 INFO L225 Difference]: With dead ends: 97 [2023-11-19 05:18:15,198 INFO L226 Difference]: Without dead ends: 83 [2023-11-19 05:18:15,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-19 05:18:15,204 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:18:15,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:18:15,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2023-11-19 05:18:15,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2023-11-19 05:18:15,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 78 states have (on average 1.9487179487179487) internal successors, (152), 82 states have internal predecessors, (152), 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) [2023-11-19 05:18:15,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 152 transitions. [2023-11-19 05:18:15,254 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 152 transitions. Word has length 3 [2023-11-19 05:18:15,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:15,254 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 152 transitions. [2023-11-19 05:18:15,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-19 05:18:15,255 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 152 transitions. [2023-11-19 05:18:15,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:18:15,256 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:15,256 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:18:15,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:18:15,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-19 05:18:15,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:15,258 INFO L85 PathProgramCache]: Analyzing trace with hash 18060084, now seen corresponding path program 1 times [2023-11-19 05:18:15,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:15,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90115997] [2023-11-19 05:18:15,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:15,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:15,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:15,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:18:15,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:15,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90115997] [2023-11-19 05:18:15,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90115997] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:15,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:15,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:18:15,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639463281] [2023-11-19 05:18:15,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:15,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:15,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:15,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:15,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:15,338 INFO L87 Difference]: Start difference. First operand 83 states and 152 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) [2023-11-19 05:18:15,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:15,394 INFO L93 Difference]: Finished difference Result 87 states and 155 transitions. [2023-11-19 05:18:15,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:18:15,395 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 [2023-11-19 05:18:15,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:15,400 INFO L225 Difference]: With dead ends: 87 [2023-11-19 05:18:15,400 INFO L226 Difference]: Without dead ends: 87 [2023-11-19 05:18:15,401 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 [2023-11-19 05:18:15,402 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:18:15,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 15 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:18:15,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-19 05:18:15,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 79. [2023-11-19 05:18:15,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.9066666666666667) internal successors, (143), 78 states have internal predecessors, (143), 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) [2023-11-19 05:18:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 143 transitions. [2023-11-19 05:18:15,420 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 143 transitions. Word has length 4 [2023-11-19 05:18:15,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:15,420 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 143 transitions. [2023-11-19 05:18:15,421 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) [2023-11-19 05:18:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 143 transitions. [2023-11-19 05:18:15,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-19 05:18:15,422 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:15,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-19 05:18:15,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:18:15,422 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-19 05:18:15,423 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:15,423 INFO L85 PathProgramCache]: Analyzing trace with hash 175163722, now seen corresponding path program 1 times [2023-11-19 05:18:15,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:15,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297754533] [2023-11-19 05:18:15,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:15,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:15,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:18:15,565 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:15,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297754533] [2023-11-19 05:18:15,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297754533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:15,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:15,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:18:15,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49871808] [2023-11-19 05:18:15,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:15,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:15,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:15,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:15,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:15,569 INFO L87 Difference]: Start difference. First operand 79 states and 143 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:18:15,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:15,612 INFO L93 Difference]: Finished difference Result 84 states and 148 transitions. [2023-11-19 05:18:15,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:18:15,613 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-19 05:18:15,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:15,616 INFO L225 Difference]: With dead ends: 84 [2023-11-19 05:18:15,616 INFO L226 Difference]: Without dead ends: 64 [2023-11-19 05:18:15,616 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 [2023-11-19 05:18:15,618 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 10 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 18 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 [2023-11-19 05:18:15,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 18 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:18:15,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-11-19 05:18:15,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-11-19 05:18:15,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.8833333333333333) internal successors, (113), 63 states have internal predecessors, (113), 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) [2023-11-19 05:18:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 113 transitions. [2023-11-19 05:18:15,628 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 113 transitions. Word has length 6 [2023-11-19 05:18:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:15,628 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 113 transitions. [2023-11-19 05:18:15,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:18:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 113 transitions. [2023-11-19 05:18:15,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:18:15,630 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:15,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:18:15,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:18:15,631 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-19 05:18:15,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:15,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1157473736, now seen corresponding path program 1 times [2023-11-19 05:18:15,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:15,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452878547] [2023-11-19 05:18:15,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:15,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:18:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:18:15,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:18:15,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452878547] [2023-11-19 05:18:15,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452878547] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:18:15,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:18:15,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:18:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098774492] [2023-11-19 05:18:15,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:18:15,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:18:15,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:18:15,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:18:15,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:18:15,682 INFO L87 Difference]: Start difference. First operand 64 states and 113 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:18:15,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:18:15,712 INFO L93 Difference]: Finished difference Result 69 states and 121 transitions. [2023-11-19 05:18:15,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:18:15,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 05:18:15,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:18:15,714 INFO L225 Difference]: With dead ends: 69 [2023-11-19 05:18:15,714 INFO L226 Difference]: Without dead ends: 53 [2023-11-19 05:18:15,714 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 [2023-11-19 05:18:15,715 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:18:15,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 13 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:18:15,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2023-11-19 05:18:15,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2023-11-19 05:18:15,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 46 states have (on average 1.6521739130434783) internal successors, (76), 48 states have internal predecessors, (76), 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) [2023-11-19 05:18:15,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 76 transitions. [2023-11-19 05:18:15,722 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 76 transitions. Word has length 7 [2023-11-19 05:18:15,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:18:15,722 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 76 transitions. [2023-11-19 05:18:15,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:18:15,723 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2023-11-19 05:18:15,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 05:18:15,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:18:15,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:18:15,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:18:15,724 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 24 more)] === [2023-11-19 05:18:15,725 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:18:15,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2094037598, now seen corresponding path program 1 times [2023-11-19 05:18:15,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:18:15,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511538372] [2023-11-19 05:18:15,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:18:15,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:18:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:18:15,746 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:18:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:18:15,787 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:18:15,787 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:18:15,789 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (27 of 28 remaining) [2023-11-19 05:18:15,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (26 of 28 remaining) [2023-11-19 05:18:15,791 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (25 of 28 remaining) [2023-11-19 05:18:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (24 of 28 remaining) [2023-11-19 05:18:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (23 of 28 remaining) [2023-11-19 05:18:15,792 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (22 of 28 remaining) [2023-11-19 05:18:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (21 of 28 remaining) [2023-11-19 05:18:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (20 of 28 remaining) [2023-11-19 05:18:15,793 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (19 of 28 remaining) [2023-11-19 05:18:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (18 of 28 remaining) [2023-11-19 05:18:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 28 remaining) [2023-11-19 05:18:15,794 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 28 remaining) [2023-11-19 05:18:15,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 28 remaining) [2023-11-19 05:18:15,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 28 remaining) [2023-11-19 05:18:15,795 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 28 remaining) [2023-11-19 05:18:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 28 remaining) [2023-11-19 05:18:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (11 of 28 remaining) [2023-11-19 05:18:15,796 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (10 of 28 remaining) [2023-11-19 05:18:15,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 28 remaining) [2023-11-19 05:18:15,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (8 of 28 remaining) [2023-11-19 05:18:15,797 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (7 of 28 remaining) [2023-11-19 05:18:15,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (6 of 28 remaining) [2023-11-19 05:18:15,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (5 of 28 remaining) [2023-11-19 05:18:15,798 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (4 of 28 remaining) [2023-11-19 05:18:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (3 of 28 remaining) [2023-11-19 05:18:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (2 of 28 remaining) [2023-11-19 05:18:15,799 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONDATA_RACE (1 of 28 remaining) [2023-11-19 05:18:15,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONDATA_RACE (0 of 28 remaining) [2023-11-19 05:18:15,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 05:18:15,803 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-19 05:18:15,810 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-19 05:18:15,810 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:18:15,832 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 05:18:15,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:18:15 BasicIcfg [2023-11-19 05:18:15,848 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:18:15,849 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:18:15,849 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:18:15,852 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:18:15,853 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:11" (3/4) ... [2023-11-19 05:18:15,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:18:15,857 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:18:15,864 INFO L158 Benchmark]: Toolchain (without parser) took 6111.08ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 48.0MB in the beginning and 98.6MB in the end (delta: -50.6MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2023-11-19 05:18:15,865 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:18:15,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 714.15ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 47.7MB in the beginning and 104.2MB in the end (delta: -56.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2023-11-19 05:18:15,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.67ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 101.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:18:15,867 INFO L158 Benchmark]: Boogie Preprocessor took 60.74ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:18:15,874 INFO L158 Benchmark]: RCFGBuilder took 1029.11ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 69.4MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 05:18:15,875 INFO L158 Benchmark]: TraceAbstraction took 4182.29ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 68.7MB in the beginning and 98.6MB in the end (delta: -29.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-19 05:18:15,875 INFO L158 Benchmark]: Witness Printer took 8.18ms. Allocated memory is still 182.5MB. Free memory is still 98.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:18:15,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 75.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 714.15ms. Allocated memory was 111.1MB in the beginning and 142.6MB in the end (delta: 31.5MB). Free memory was 47.7MB in the beginning and 104.2MB in the end (delta: -56.6MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.67ms. Allocated memory is still 142.6MB. Free memory was 104.2MB in the beginning and 101.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.74ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1029.11ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 69.4MB in the end (delta: 30.7MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4182.29ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 68.7MB in the beginning and 98.6MB in the end (delta: -29.9MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 8.18ms. Allocated memory is still 182.5MB. Free memory is still 98.6MB. 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~pre9 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: 2.8s, 78 PlacesBefore, 40 PlacesAfterwards, 77 TransitionsBefore, 38 TransitionsAfterwards, 1628 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 76 TotalNumberOfCompositions, 5828 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3808, independent: 3580, independent conditional: 0, independent unconditional: 3580, dependent: 228, dependent conditional: 0, dependent unconditional: 228, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1414, independent: 1372, independent conditional: 0, independent unconditional: 1372, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1414, independent: 1216, independent conditional: 0, independent unconditional: 1216, dependent: 198, dependent conditional: 0, dependent unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 198, independent: 156, independent conditional: 0, independent unconditional: 156, dependent: 42, dependent conditional: 0, dependent unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 316, independent: 193, independent conditional: 0, independent unconditional: 193, dependent: 123, dependent conditional: 0, dependent unconditional: 123, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3808, independent: 2208, independent conditional: 0, independent unconditional: 2208, dependent: 186, dependent conditional: 0, dependent unconditional: 186, unknown: 1414, unknown conditional: 0, unknown unconditional: 1414] , Statistics on independence cache: Total cache size (in pairs): 267, Positive cache size: 247, Positive conditional cache size: 0, Positive unconditional cache size: 247, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, 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: 724]: Data race detected [2023-11-19 05:18:15,906 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated [2023-11-19 05:18:15,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre9 could not be translated Data race detected The following path leads to a data race: [L688] 0 int mThread=0; [L689] 0 int start_main=0; [L690] 0 int mStartLock=0; [L691] 0 int __COUNT__ =0; [L733] 0 pthread_t t; [L734] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [__COUNT__=0, mStartLock=0, mThread=0, start_main=0, t={3:0}] [L735] CALL 0 thr2(0) [L724] 0 int self = mThread; VAL [__COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=0, mThread=0, start_main=0] [L710] 1 int PR_CreateThread__RES = 1; [L711] CALL 1 __VERIFIER_atomic_acquire() [L694] EXPR 1 mStartLock==0 [L694] CALL 1 assume_abort_if_not(mStartLock==0) [L3] COND FALSE 1 !(!cond) [L694] RET 1 assume_abort_if_not(mStartLock==0) [L695] 1 mStartLock = 1 [L711] RET 1 __VERIFIER_atomic_acquire() [L712] 1 start_main=1 VAL [PR_CreateThread__RES=1, __COUNT__=0, arg={0:0}, arg={0:0}, mStartLock=1, mThread=0, start_main=1] [L713] CALL 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L704] 1 __COUNT__ == 0 [L704] COND TRUE 1 __COUNT__ == 0 [L705] 1 mThread = PR_CreateThread__RES [L706] EXPR 1 __COUNT__ + 1 [L706] 1 __COUNT__ = __COUNT__ + 1 [L713] RET 1 __VERIFIER_atomic_thr1(PR_CreateThread__RES) [L724] 0 int self = mThread; VAL [__COUNT__=1, arg={0:0}, arg={0:0}, mStartLock=1, mThread=1, start_main=1] Now there is a data race on ~mThread~0 between C: mThread = PR_CreateThread__RES [705] and C: int self = mThread; [724] - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 712]: 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: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 725]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 695]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 719]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 734]: 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 3 procedures, 98 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 104 IncrementalHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 41 mSDtfsCounter, 104 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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! [2023-11-19 05:18:15,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a197a70a-1c80-465b-9fa2-890ee3237335/bin/utaipan-verify-t7M7D8N6sZ/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