./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc 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_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh --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 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:09:06,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:09:06,391 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 13:09:06,397 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:09:06,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:09:06,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:09:06,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:09:06,426 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:09:06,427 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:09:06,427 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:09:06,428 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:09:06,428 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:09:06,429 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:09:06,429 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:09:06,430 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:09:06,430 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:09:06,431 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:09:06,431 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:09:06,432 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:09:06,432 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:09:06,433 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:09:06,435 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:09:06,435 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:09:06,436 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:09:06,437 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:09:06,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:09:06,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:09:06,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:09:06,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:09:06,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:09:06,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:09:06,440 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 13:09:06,440 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 13:09:06,440 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:09:06,440 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:09:06,440 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:09:06,441 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:09:06,441 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:09:06,441 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:09:06,441 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:09:06,442 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:09:06,442 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:09:06,442 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:09:06,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:09:06,443 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:09:06,443 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:09:06,443 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:09:06,443 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:09:06,444 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_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2023-12-02 13:09:06,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:09:06,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:09:06,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:09:06,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:09:06,730 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:09:06,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-divine/condvar.i [2023-12-02 13:09:09,539 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:09:09,785 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:09:09,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/sv-benchmarks/c/pthread-divine/condvar.i [2023-12-02 13:09:09,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/data/39dd42913/c7e8c6eeebc14fc680ce4999866e5b48/FLAG3c606c210 [2023-12-02 13:09:09,811 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/data/39dd42913/c7e8c6eeebc14fc680ce4999866e5b48 [2023-12-02 13:09:09,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:09:09,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:09:09,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:09:09,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:09:09,821 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:09:09,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:09:09" (1/1) ... [2023-12-02 13:09:09,823 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d84503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:09, skipping insertion in model container [2023-12-02 13:09:09,823 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:09:09" (1/1) ... [2023-12-02 13:09:09,869 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:09:10,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:09:10,187 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:09:10,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:09:10,276 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:09:10,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10 WrapperNode [2023-12-02 13:09:10,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:09:10,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:09:10,278 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:09:10,278 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:09:10,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,329 INFO L138 Inliner]: procedures = 169, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 97 [2023-12-02 13:09:10,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:09:10,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:09:10,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:09:10,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:09:10,340 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,351 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,358 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:09:10,362 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:09:10,362 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:09:10,362 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:09:10,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (1/1) ... [2023-12-02 13:09:10,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:09:10,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:10,393 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:09:10,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:09:10,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:09:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:09:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 13:09:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:09:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:09:10,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:09:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:09:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 13:09:10,441 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 13:09:10,441 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 13:09:10,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:09:10,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:09:10,444 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 13:09:10,574 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:09:10,576 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:09:10,785 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:09:10,810 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:09:10,810 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-02 13:09:10,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:10 BoogieIcfgContainer [2023-12-02 13:09:10,812 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:09:10,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:09:10,815 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:09:10,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:09:10,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:09:09" (1/3) ... [2023-12-02 13:09:10,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40053522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:09:10, skipping insertion in model container [2023-12-02 13:09:10,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:09:10" (2/3) ... [2023-12-02 13:09:10,820 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40053522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:09:10, skipping insertion in model container [2023-12-02 13:09:10,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:10" (3/3) ... [2023-12-02 13:09:10,821 INFO L112 eAbstractionObserver]: Analyzing ICFG condvar.i [2023-12-02 13:09:10,828 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 13:09:10,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:09:10,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-12-02 13:09:10,838 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 13:09:10,892 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-12-02 13:09:10,940 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 101 places, 103 transitions, 213 flow [2023-12-02 13:09:11,032 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 727 states, 716 states have (on average 2.127094972067039) internal successors, (1523), 726 states have internal predecessors, (1523), 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) [2023-12-02 13:09:11,048 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:09:11,054 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;@6e1290a6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:09:11,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-12-02 13:09:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 727 states, 716 states have (on average 2.127094972067039) internal successors, (1523), 726 states have internal predecessors, (1523), 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) [2023-12-02 13:09:11,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 13:09:11,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:11,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:11,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:11,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:11,072 INFO L85 PathProgramCache]: Analyzing trace with hash 296098665, now seen corresponding path program 1 times [2023-12-02 13:09:11,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:11,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960763379] [2023-12-02 13:09:11,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:11,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:11,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:11,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:11,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960763379] [2023-12-02 13:09:11,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960763379] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:11,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:09:11,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:09:11,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639788769] [2023-12-02 13:09:11,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:11,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:09:11,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:11,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:09:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:11,371 INFO L87 Difference]: Start difference. First operand has 727 states, 716 states have (on average 2.127094972067039) internal successors, (1523), 726 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 13:09:11,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:11,452 INFO L93 Difference]: Finished difference Result 873 states and 1689 transitions. [2023-12-02 13:09:11,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:09:11,455 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-12-02 13:09:11,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:11,475 INFO L225 Difference]: With dead ends: 873 [2023-12-02 13:09:11,476 INFO L226 Difference]: Without dead ends: 873 [2023-12-02 13:09:11,477 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 [2023-12-02 13:09:11,480 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 45 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:11,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 188 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:09:11,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2023-12-02 13:09:11,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 667. [2023-12-02 13:09:11,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 654 states have (on average 1.9785932721712538) internal successors, (1294), 666 states have internal predecessors, (1294), 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) [2023-12-02 13:09:11,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 1294 transitions. [2023-12-02 13:09:11,562 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 1294 transitions. Word has length 43 [2023-12-02 13:09:11,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:11,562 INFO L495 AbstractCegarLoop]: Abstraction has 667 states and 1294 transitions. [2023-12-02 13:09:11,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 13:09:11,563 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 1294 transitions. [2023-12-02 13:09:11,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 13:09:11,565 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:11,565 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:11,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:09:11,566 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:11,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash -787212999, now seen corresponding path program 1 times [2023-12-02 13:09:11,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:11,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313351142] [2023-12-02 13:09:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:11,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:11,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:11,659 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:11,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313351142] [2023-12-02 13:09:11,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313351142] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:11,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:09:11,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:09:11,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553533867] [2023-12-02 13:09:11,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:11,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:09:11,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:11,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:09:11,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:11,663 INFO L87 Difference]: Start difference. First operand 667 states and 1294 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 13:09:11,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:11,699 INFO L93 Difference]: Finished difference Result 905 states and 1745 transitions. [2023-12-02 13:09:11,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:09:11,699 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2023-12-02 13:09:11,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:11,706 INFO L225 Difference]: With dead ends: 905 [2023-12-02 13:09:11,706 INFO L226 Difference]: Without dead ends: 893 [2023-12-02 13:09:11,707 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 [2023-12-02 13:09:11,708 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 36 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:11,709 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 187 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:09:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2023-12-02 13:09:11,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 677. [2023-12-02 13:09:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 664 states have (on average 1.9759036144578312) internal successors, (1312), 676 states have internal predecessors, (1312), 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) [2023-12-02 13:09:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1312 transitions. [2023-12-02 13:09:11,738 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1312 transitions. Word has length 46 [2023-12-02 13:09:11,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:11,739 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 1312 transitions. [2023-12-02 13:09:11,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 13:09:11,740 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1312 transitions. [2023-12-02 13:09:11,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 13:09:11,742 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:11,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:11,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:09:11,743 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:11,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:11,743 INFO L85 PathProgramCache]: Analyzing trace with hash 24872077, now seen corresponding path program 1 times [2023-12-02 13:09:11,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:11,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716595170] [2023-12-02 13:09:11,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:11,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:11,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:11,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716595170] [2023-12-02 13:09:11,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716595170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:11,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:09:11,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:09:11,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812740378] [2023-12-02 13:09:11,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:11,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:09:11,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:11,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:09:11,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:11,837 INFO L87 Difference]: Start difference. First operand 677 states and 1312 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 13:09:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:11,877 INFO L93 Difference]: Finished difference Result 683 states and 1321 transitions. [2023-12-02 13:09:11,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:09:11,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2023-12-02 13:09:11,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:11,884 INFO L225 Difference]: With dead ends: 683 [2023-12-02 13:09:11,884 INFO L226 Difference]: Without dead ends: 683 [2023-12-02 13:09:11,884 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 [2023-12-02 13:09:11,886 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 22 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:11,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 173 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:09:11,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-12-02 13:09:11,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 673. [2023-12-02 13:09:11,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 661 states have (on average 1.9697428139183055) internal successors, (1302), 672 states have internal predecessors, (1302), 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) [2023-12-02 13:09:11,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1302 transitions. [2023-12-02 13:09:11,907 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1302 transitions. Word has length 46 [2023-12-02 13:09:11,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:11,907 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 1302 transitions. [2023-12-02 13:09:11,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 13:09:11,908 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1302 transitions. [2023-12-02 13:09:11,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 13:09:11,910 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:11,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:11,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:09:11,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:11,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:11,912 INFO L85 PathProgramCache]: Analyzing trace with hash 827103228, now seen corresponding path program 1 times [2023-12-02 13:09:11,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:11,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181206994] [2023-12-02 13:09:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:11,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:11,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:11,984 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:11,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181206994] [2023-12-02 13:09:11,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181206994] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:11,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:09:11,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:09:11,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920015035] [2023-12-02 13:09:11,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:11,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:09:11,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:11,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:09:11,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:11,986 INFO L87 Difference]: Start difference. First operand 673 states and 1302 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-12-02 13:09:12,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:12,023 INFO L93 Difference]: Finished difference Result 868 states and 1690 transitions. [2023-12-02 13:09:12,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:09:12,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2023-12-02 13:09:12,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:12,029 INFO L225 Difference]: With dead ends: 868 [2023-12-02 13:09:12,030 INFO L226 Difference]: Without dead ends: 868 [2023-12-02 13:09:12,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:12,031 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 30 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:12,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 174 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:09:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2023-12-02 13:09:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 694. [2023-12-02 13:09:12,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 682 states have (on average 1.970674486803519) internal successors, (1344), 693 states have internal predecessors, (1344), 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) [2023-12-02 13:09:12,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 1344 transitions. [2023-12-02 13:09:12,053 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 1344 transitions. Word has length 47 [2023-12-02 13:09:12,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:12,053 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 1344 transitions. [2023-12-02 13:09:12,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2023-12-02 13:09:12,054 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 1344 transitions. [2023-12-02 13:09:12,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 13:09:12,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:12,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:12,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:09:12,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:12,058 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:12,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1083541826, now seen corresponding path program 1 times [2023-12-02 13:09:12,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:12,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015412355] [2023-12-02 13:09:12,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:12,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:12,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:12,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:12,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:12,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015412355] [2023-12-02 13:09:12,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015412355] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:12,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:09:12,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:09:12,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358876597] [2023-12-02 13:09:12,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:12,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:09:12,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:12,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:09:12,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:12,174 INFO L87 Difference]: Start difference. First operand 694 states and 1344 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-02 13:09:12,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:12,197 INFO L93 Difference]: Finished difference Result 462 states and 872 transitions. [2023-12-02 13:09:12,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:09:12,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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 53 [2023-12-02 13:09:12,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:12,201 INFO L225 Difference]: With dead ends: 462 [2023-12-02 13:09:12,201 INFO L226 Difference]: Without dead ends: 462 [2023-12-02 13:09:12,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:09:12,203 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 16 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:12,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 139 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:09:12,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-12-02 13:09:12,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2023-12-02 13:09:12,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 455 states have (on average 1.9164835164835166) internal successors, (872), 461 states have internal predecessors, (872), 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) [2023-12-02 13:09:12,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 872 transitions. [2023-12-02 13:09:12,234 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 872 transitions. Word has length 53 [2023-12-02 13:09:12,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:12,234 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 872 transitions. [2023-12-02 13:09:12,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 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) [2023-12-02 13:09:12,235 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 872 transitions. [2023-12-02 13:09:12,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 13:09:12,236 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:12,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:12,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:09:12,237 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:12,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:12,237 INFO L85 PathProgramCache]: Analyzing trace with hash 497549866, now seen corresponding path program 1 times [2023-12-02 13:09:12,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:12,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258645181] [2023-12-02 13:09:12,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:12,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:12,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:12,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:12,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258645181] [2023-12-02 13:09:12,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258645181] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:12,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232211150] [2023-12-02 13:09:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:12,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:12,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:12,357 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:12,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:09:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:12,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 13:09:12,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:12,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:09:12,492 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:09:12,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232211150] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:09:12,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:09:12,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-02 13:09:12,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991834071] [2023-12-02 13:09:12,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:09:12,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:09:12,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:12,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:09:12,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:09:12,495 INFO L87 Difference]: Start difference. First operand 462 states and 872 transitions. Second operand has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-12-02 13:09:12,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:12,532 INFO L93 Difference]: Finished difference Result 492 states and 932 transitions. [2023-12-02 13:09:12,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:09:12,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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 56 [2023-12-02 13:09:12,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:12,536 INFO L225 Difference]: With dead ends: 492 [2023-12-02 13:09:12,536 INFO L226 Difference]: Without dead ends: 492 [2023-12-02 13:09:12,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:09:12,538 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 22 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:12,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 169 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 13:09:12,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-02 13:09:12,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 474. [2023-12-02 13:09:12,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 468 states have (on average 1.9145299145299146) internal successors, (896), 473 states have internal predecessors, (896), 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) [2023-12-02 13:09:12,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 896 transitions. [2023-12-02 13:09:12,561 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 896 transitions. Word has length 56 [2023-12-02 13:09:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:12,561 INFO L495 AbstractCegarLoop]: Abstraction has 474 states and 896 transitions. [2023-12-02 13:09:12,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.0) internal successors, (56), 3 states have internal predecessors, (56), 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) [2023-12-02 13:09:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 896 transitions. [2023-12-02 13:09:12,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 13:09:12,563 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:12,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:12,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:09:12,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:12,764 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:12,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:12,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1270927642, now seen corresponding path program 1 times [2023-12-02 13:09:12,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:12,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612500155] [2023-12-02 13:09:12,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:12,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:12,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:12,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:12,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:12,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612500155] [2023-12-02 13:09:12,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612500155] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:12,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429087119] [2023-12-02 13:09:12,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:12,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:12,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:12,846 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:12,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:09:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:12,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 13:09:12,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:13,003 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:09:13,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:13,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429087119] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:09:13,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2042449221] [2023-12-02 13:09:13,057 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 13:09:13,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:09:13,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-12-02 13:09:13,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100010682] [2023-12-02 13:09:13,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:09:13,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-12-02 13:09:13,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:13,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-12-02 13:09:13,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-12-02 13:09:13,062 INFO L87 Difference]: Start difference. First operand 474 states and 896 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) [2023-12-02 13:09:13,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:13,195 INFO L93 Difference]: Finished difference Result 654 states and 1256 transitions. [2023-12-02 13:09:13,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 13:09:13,196 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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 60 [2023-12-02 13:09:13,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:13,201 INFO L225 Difference]: With dead ends: 654 [2023-12-02 13:09:13,201 INFO L226 Difference]: Without dead ends: 654 [2023-12-02 13:09:13,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-12-02 13:09:13,202 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 160 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:13,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 438 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 13:09:13,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 654 states. [2023-12-02 13:09:13,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 654 to 654. [2023-12-02 13:09:13,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 648 states have (on average 1.9382716049382716) internal successors, (1256), 653 states have internal predecessors, (1256), 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) [2023-12-02 13:09:13,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1256 transitions. [2023-12-02 13:09:13,239 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1256 transitions. Word has length 60 [2023-12-02 13:09:13,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:13,239 INFO L495 AbstractCegarLoop]: Abstraction has 654 states and 1256 transitions. [2023-12-02 13:09:13,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 states have internal predecessors, (80), 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) [2023-12-02 13:09:13,239 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1256 transitions. [2023-12-02 13:09:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 13:09:13,241 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:13,241 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:13,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-02 13:09:13,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:13,442 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:13,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:13,442 INFO L85 PathProgramCache]: Analyzing trace with hash -627935578, now seen corresponding path program 2 times [2023-12-02 13:09:13,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:13,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356368691] [2023-12-02 13:09:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:13,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:13,609 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:13,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356368691] [2023-12-02 13:09:13,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356368691] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434208256] [2023-12-02 13:09:13,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:09:13,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:13,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:13,611 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:13,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:09:13,700 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-12-02 13:09:13,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:09:13,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 13:09:13,704 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:13,772 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:13,773 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:09:13,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:13,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434208256] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:09:13,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2079569625] [2023-12-02 13:09:13,897 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 13:09:13,900 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:09:13,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2023-12-02 13:09:13,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92696338] [2023-12-02 13:09:13,900 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:09:13,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-12-02 13:09:13,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:13,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-12-02 13:09:13,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2023-12-02 13:09:13,902 INFO L87 Difference]: Start difference. First operand 654 states and 1256 transitions. Second operand has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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) [2023-12-02 13:09:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:14,246 INFO L93 Difference]: Finished difference Result 1014 states and 1976 transitions. [2023-12-02 13:09:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-12-02 13:09:14,247 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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 78 [2023-12-02 13:09:14,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:14,253 INFO L225 Difference]: With dead ends: 1014 [2023-12-02 13:09:14,254 INFO L226 Difference]: Without dead ends: 1014 [2023-12-02 13:09:14,254 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2023-12-02 13:09:14,255 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 465 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:14,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 827 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:09:14,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2023-12-02 13:09:14,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1014. [2023-12-02 13:09:14,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1008 states have (on average 1.9603174603174602) internal successors, (1976), 1013 states have internal predecessors, (1976), 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) [2023-12-02 13:09:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 1976 transitions. [2023-12-02 13:09:14,287 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 1976 transitions. Word has length 78 [2023-12-02 13:09:14,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:14,287 INFO L495 AbstractCegarLoop]: Abstraction has 1014 states and 1976 transitions. [2023-12-02 13:09:14,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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) [2023-12-02 13:09:14,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 1976 transitions. [2023-12-02 13:09:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-02 13:09:14,290 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:14,290 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:14,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:09:14,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:14,495 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:14,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:14,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1251625434, now seen corresponding path program 3 times [2023-12-02 13:09:14,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:14,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939293605] [2023-12-02 13:09:14,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:14,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:14,879 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:14,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939293605] [2023-12-02 13:09:14,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939293605] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:14,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479187840] [2023-12-02 13:09:14,880 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-12-02 13:09:14,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:14,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:14,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:14,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:09:14,988 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-12-02 13:09:14,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:09:14,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 13:09:14,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:15,139 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:15,140 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:09:15,509 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:15,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479187840] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:09:15,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [168726785] [2023-12-02 13:09:15,510 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 13:09:15,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:09:15,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2023-12-02 13:09:15,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218477836] [2023-12-02 13:09:15,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:09:15,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-12-02 13:09:15,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:15,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-12-02 13:09:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2023-12-02 13:09:15,513 INFO L87 Difference]: Start difference. First operand 1014 states and 1976 transitions. Second operand has 34 states, 34 states have (on average 5.529411764705882) internal successors, (188), 34 states have internal predecessors, (188), 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) [2023-12-02 13:09:16,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:16,441 INFO L93 Difference]: Finished difference Result 1734 states and 3416 transitions. [2023-12-02 13:09:16,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2023-12-02 13:09:16,442 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 5.529411764705882) internal successors, (188), 34 states have internal predecessors, (188), 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 114 [2023-12-02 13:09:16,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:16,453 INFO L225 Difference]: With dead ends: 1734 [2023-12-02 13:09:16,453 INFO L226 Difference]: Without dead ends: 1734 [2023-12-02 13:09:16,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2023-12-02 13:09:16,456 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 1325 mSDsluCounter, 866 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:16,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 958 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 13:09:16,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1734 states. [2023-12-02 13:09:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1734 to 1734. [2023-12-02 13:09:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1734 states, 1728 states have (on average 1.9768518518518519) internal successors, (3416), 1733 states have internal predecessors, (3416), 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) [2023-12-02 13:09:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1734 states to 1734 states and 3416 transitions. [2023-12-02 13:09:16,522 INFO L78 Accepts]: Start accepts. Automaton has 1734 states and 3416 transitions. Word has length 114 [2023-12-02 13:09:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:16,522 INFO L495 AbstractCegarLoop]: Abstraction has 1734 states and 3416 transitions. [2023-12-02 13:09:16,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 5.529411764705882) internal successors, (188), 34 states have internal predecessors, (188), 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) [2023-12-02 13:09:16,523 INFO L276 IsEmpty]: Start isEmpty. Operand 1734 states and 3416 transitions. [2023-12-02 13:09:16,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-02 13:09:16,529 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:16,529 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:16,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-12-02 13:09:16,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:16,730 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:16,731 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:16,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1219562202, now seen corresponding path program 4 times [2023-12-02 13:09:16,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:16,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286013730] [2023-12-02 13:09:16,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:16,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:17,797 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:17,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286013730] [2023-12-02 13:09:17,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286013730] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:17,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393353303] [2023-12-02 13:09:17,798 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-12-02 13:09:17,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:17,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:17,799 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:17,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-02 13:09:17,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:17,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 13:09:17,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:18,201 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:18,201 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:09:19,309 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 0 proven. 960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:19,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393353303] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:09:19,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1391617375] [2023-12-02 13:09:19,310 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 13:09:19,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:09:19,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 66 [2023-12-02 13:09:19,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458292282] [2023-12-02 13:09:19,310 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:09:19,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2023-12-02 13:09:19,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:19,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2023-12-02 13:09:19,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1122, Invalid=3168, Unknown=0, NotChecked=0, Total=4290 [2023-12-02 13:09:19,315 INFO L87 Difference]: Start difference. First operand 1734 states and 3416 transitions. Second operand has 66 states, 66 states have (on average 5.03030303030303) internal successors, (332), 66 states have internal predecessors, (332), 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) [2023-12-02 13:09:21,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:21,978 INFO L93 Difference]: Finished difference Result 3174 states and 6296 transitions. [2023-12-02 13:09:21,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2023-12-02 13:09:21,979 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 66 states have (on average 5.03030303030303) internal successors, (332), 66 states have internal predecessors, (332), 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 186 [2023-12-02 13:09:21,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:21,995 INFO L225 Difference]: With dead ends: 3174 [2023-12-02 13:09:21,995 INFO L226 Difference]: Without dead ends: 3174 [2023-12-02 13:09:22,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3579 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4936, Invalid=10814, Unknown=0, NotChecked=0, Total=15750 [2023-12-02 13:09:22,002 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 4246 mSDsluCounter, 1051 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4246 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:22,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4246 Valid, 1143 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-02 13:09:22,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3174 states. [2023-12-02 13:09:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3174 to 3174. [2023-12-02 13:09:22,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3174 states, 3168 states have (on average 1.9873737373737375) internal successors, (6296), 3173 states have internal predecessors, (6296), 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) [2023-12-02 13:09:22,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3174 states to 3174 states and 6296 transitions. [2023-12-02 13:09:22,097 INFO L78 Accepts]: Start accepts. Automaton has 3174 states and 6296 transitions. Word has length 186 [2023-12-02 13:09:22,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:22,098 INFO L495 AbstractCegarLoop]: Abstraction has 3174 states and 6296 transitions. [2023-12-02 13:09:22,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 5.03030303030303) internal successors, (332), 66 states have internal predecessors, (332), 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) [2023-12-02 13:09:22,098 INFO L276 IsEmpty]: Start isEmpty. Operand 3174 states and 6296 transitions. [2023-12-02 13:09:22,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2023-12-02 13:09:22,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:22,109 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:22,115 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-12-02 13:09:22,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-02 13:09:22,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:22,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:22,311 INFO L85 PathProgramCache]: Analyzing trace with hash 279737126, now seen corresponding path program 5 times [2023-12-02 13:09:22,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:22,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903313640] [2023-12-02 13:09:22,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:22,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:22,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:09:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:24,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:09:24,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903313640] [2023-12-02 13:09:24,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903313640] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:09:24,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775082776] [2023-12-02 13:09:24,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-12-02 13:09:24,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:24,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:09:24,993 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:09:24,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-02 13:09:25,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2023-12-02 13:09:25,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-02 13:09:25,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 64 conjunts are in the unsatisfiable core [2023-12-02 13:09:25,174 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:09:25,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:25,499 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:09:27,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4216 backedges. 0 proven. 4216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:09:27,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775082776] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:09:27,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2005602982] [2023-12-02 13:09:27,328 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1621) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-02 13:09:27,328 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:09:27,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 89 [2023-12-02 13:09:27,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870524652] [2023-12-02 13:09:27,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-12-02 13:09:27,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2023-12-02 13:09:27,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:09:27,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2023-12-02 13:09:27,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2024, Invalid=5808, Unknown=0, NotChecked=0, Total=7832 [2023-12-02 13:09:27,336 INFO L87 Difference]: Start difference. First operand 3174 states and 6296 transitions. Second operand has 89 states, 89 states have (on average 4.943820224719101) internal successors, (440), 89 states have internal predecessors, (440), 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) [2023-12-02 13:09:32,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:09:32,510 INFO L93 Difference]: Finished difference Result 4254 states and 8456 transitions. [2023-12-02 13:09:32,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2023-12-02 13:09:32,511 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 89 states have (on average 4.943820224719101) internal successors, (440), 89 states have internal predecessors, (440), 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 330 [2023-12-02 13:09:32,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:09:32,529 INFO L225 Difference]: With dead ends: 4254 [2023-12-02 13:09:32,529 INFO L226 Difference]: Without dead ends: 4254 [2023-12-02 13:09:32,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 891 GetRequests, 679 SyntacticMatches, 41 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8625 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=9335, Invalid=20421, Unknown=0, NotChecked=0, Total=29756 [2023-12-02 13:09:32,538 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 6192 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6192 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:09:32,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6192 Valid, 1575 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 609 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-02 13:09:32,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4254 states. [2023-12-02 13:09:32,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4254 to 4254. [2023-12-02 13:09:32,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4254 states, 4248 states have (on average 1.990583804143126) internal successors, (8456), 4253 states have internal predecessors, (8456), 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) [2023-12-02 13:09:32,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4254 states to 4254 states and 8456 transitions. [2023-12-02 13:09:32,629 INFO L78 Accepts]: Start accepts. Automaton has 4254 states and 8456 transitions. Word has length 330 [2023-12-02 13:09:32,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:09:32,629 INFO L495 AbstractCegarLoop]: Abstraction has 4254 states and 8456 transitions. [2023-12-02 13:09:32,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 4.943820224719101) internal successors, (440), 89 states have internal predecessors, (440), 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) [2023-12-02 13:09:32,630 INFO L276 IsEmpty]: Start isEmpty. Operand 4254 states and 8456 transitions. [2023-12-02 13:09:32,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2023-12-02 13:09:32,644 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:09:32,645 INFO L195 NwaCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:32,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-12-02 13:09:32,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:09:32,845 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting threadErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-12-02 13:09:32,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:09:32,846 INFO L85 PathProgramCache]: Analyzing trace with hash 865874342, now seen corresponding path program 6 times [2023-12-02 13:09:32,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:09:32,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158195389] [2023-12-02 13:09:32,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:09:32,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:09:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:09:32,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:09:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:09:33,133 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:09:33,133 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:09:33,134 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-12-02 13:09:33,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-12-02 13:09:33,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-12-02 13:09:33,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (4 of 8 remaining) [2023-12-02 13:09:33,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2023-12-02 13:09:33,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-12-02 13:09:33,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-12-02 13:09:33,136 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-12-02 13:09:33,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 13:09:33,139 INFO L445 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1] [2023-12-02 13:09:33,145 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-12-02 13:09:33,145 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:09:33,256 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-12-02 13:09:33,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 13:09:33,278 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-12-02 13:09:33,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:09:33 BasicIcfg [2023-12-02 13:09:33,295 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:09:33,296 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:09:33,296 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:09:33,296 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:09:33,296 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:09:10" (3/4) ... [2023-12-02 13:09:33,298 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:09:33,299 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:09:33,299 INFO L158 Benchmark]: Toolchain (without parser) took 23484.09ms. Allocated memory was 161.5MB in the beginning and 423.6MB in the end (delta: 262.1MB). Free memory was 128.4MB in the beginning and 155.8MB in the end (delta: -27.4MB). Peak memory consumption was 235.2MB. Max. memory is 16.1GB. [2023-12-02 13:09:33,299 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:09:33,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 460.69ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 108.3MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 13:09:33,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.93ms. Allocated memory is still 161.5MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:09:33,300 INFO L158 Benchmark]: Boogie Preprocessor took 30.80ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 13:09:33,301 INFO L158 Benchmark]: RCFGBuilder took 450.35ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 88.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 13:09:33,301 INFO L158 Benchmark]: TraceAbstraction took 22479.82ms. Allocated memory was 161.5MB in the beginning and 423.6MB in the end (delta: 262.1MB). Free memory was 87.3MB in the beginning and 155.8MB in the end (delta: -68.5MB). Peak memory consumption was 195.3MB. Max. memory is 16.1GB. [2023-12-02 13:09:33,301 INFO L158 Benchmark]: Witness Printer took 3.12ms. Allocated memory is still 423.6MB. Free memory is still 155.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:09:33,303 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 460.69ms. Allocated memory is still 161.5MB. Free memory was 128.4MB in the beginning and 108.3MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.93ms. Allocated memory is still 161.5MB. Free memory was 107.9MB in the beginning and 105.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.80ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 104.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 450.35ms. Allocated memory is still 161.5MB. Free memory was 104.0MB in the beginning and 88.1MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22479.82ms. Allocated memory was 161.5MB in the beginning and 423.6MB in the end (delta: 262.1MB). Free memory was 87.3MB in the beginning and 155.8MB in the end (delta: -68.5MB). Peak memory consumption was 195.3MB. Max. memory is 16.1GB. * Witness Printer took 3.12ms. Allocated memory is still 423.6MB. Free memory is still 155.8MB. 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: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 704]: Data race detected [2023-12-02 13:09:33,412 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-12-02 13:09:33,421 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 13:09:33,422 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-12-02 13:09:33,536 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre8 could not be translated [2023-12-02 13:09:33,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 13:09:33,543 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated Data race detected The following path leads to a data race: [L697] 0 pthread_mutex_t lock; VAL [lock={3:0}] [L698] 0 pthread_cond_t cond; VAL [cond={4:0}, lock={3:0}] [L699] 0 int x; VAL [cond={4:0}, lock={3:0}, x=0] [L700] 0 _Bool x_set = 0; VAL [cond={4:0}, lock={3:0}, x=0, x_set=0] [L711] 0 pthread_t t; VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0, x_set=0] [L712] FCALL, FORK 0 pthread_create( &t, ((void *)0), thread, ((void *)0) ) VAL [cond={4:0}, lock={3:0}, t={7:0}, x=0, x_set=0] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=0, x_set=0] [L713] 0 int i = 0; VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=0, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=0, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=1, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=1, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=2, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=2, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=3, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=3, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=4, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=4, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=5, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=5, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=6, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=6, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=7, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=7, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=8, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=8, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=9, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=9, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=10, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=10, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=11, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=11, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=12, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=12, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=13, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=13, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=14, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=14, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=15, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=15, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=16, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=16, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=17, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=17, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=18, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=18, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=19, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=19, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=20, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=20, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=21, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=21, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=22, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=22, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=23, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=23, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=24, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=24, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=25, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=25, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=26, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=26, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=27, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=27, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=28, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=28, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=29, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=29, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=30, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=30, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=31, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=31, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=32, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=32, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=33, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=33, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=34, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=34, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=35, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=35, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=36, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=36, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=37, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=37, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=38, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=38, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=39, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=39, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=40, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=40, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=41, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L713] COND TRUE 0 i <= 42 VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=41, x_set=0] [L714] 0 x = i VAL [cond={4:0}, i=42, lock={3:0}, t={7:0}, x=42, x_set=0] [L713] 0 i++ VAL [cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L713] COND FALSE 0 !(i <= 42) VAL [cond={4:0}, i=43, lock={3:0}, t={7:0}, x=42, x_set=0] [L715] 0 x_set = 1 VAL [cond={4:0}, lock={3:0}, t={7:0}, x=42, x_set=1] [L704] 1 !x_set VAL [arg={0:0}, arg={0:0}, cond={4:0}, lock={3:0}, x=42, x_set=1] Now there is a data race on ~x_set~0 between C: x_set = 1 [715] and C: !x_set [704] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 715]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: 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 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 there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 124 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 22.2s, OverallIterations: 12, TraceHistogramMax: 43, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.1s, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12559 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12559 mSDsluCounter, 5971 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4919 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1712 IncrementalHoareTripleChecker+Invalid, 1721 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 1052 mSDtfsCounter, 1712 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2103 GetRequests, 1658 SyntacticMatches, 41 SemanticMatches, 404 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13224 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4254occurred in iteration=11, InterpolantAutomatonStates: 315, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 624 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 2321 NumberOfCodeBlocks, 2321 NumberOfCodeBlocksAsserted, 53 NumberOfCheckSat, 2629 ConstructedInterpolants, 0 QuantifiedInterpolants, 5799 SizeOfPredicates, 114 NumberOfNonLiveVariables, 1589 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 1/16211 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! [2023-12-02 13:09:33,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_404d2497-f19e-4ee1-abed-a89b50a8ab81/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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