./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/test-easy1.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/test-easy1.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E --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 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 04:10:14,405 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 04:10:14,509 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-DataRace-32bit-Taipan_Default.epf [2024-11-14 04:10:14,522 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 04:10:14,522 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 04:10:14,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 04:10:14,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 04:10:14,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 04:10:14,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 04:10:14,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 04:10:14,574 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 04:10:14,574 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 04:10:14,574 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 04:10:14,574 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 04:10:14,576 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 04:10:14,576 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 04:10:14,576 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 04:10:14,577 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 04:10:14,577 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 04:10:14,577 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 04:10:14,577 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 04:10:14,577 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 04:10:14,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 04:10:14,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 04:10:14,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 04:10:14,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:14,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 04:10:14,580 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E 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 -> 935a7b7fee114f90b65d69dd73b2635844dd9aedca06c4cbc37a4ce046611c9d [2024-11-14 04:10:14,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 04:10:14,932 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 04:10:14,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 04:10:14,935 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 04:10:14,936 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 04:10:14,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/weaver/test-easy1.wvr.c Unable to find full path for "g++" [2024-11-14 04:10:17,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 04:10:17,364 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 04:10:17,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/sv-benchmarks/c/weaver/test-easy1.wvr.c [2024-11-14 04:10:17,375 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/data/dc5f3c6af/806bdf2c747e49adad0767f3af5927a7/FLAGabd8832f7 [2024-11-14 04:10:17,394 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/data/dc5f3c6af/806bdf2c747e49adad0767f3af5927a7 [2024-11-14 04:10:17,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 04:10:17,399 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 04:10:17,401 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:17,401 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 04:10:17,407 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 04:10:17,408 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231af2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17, skipping insertion in model container [2024-11-14 04:10:17,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 04:10:17,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:17,663 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 04:10:17,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 04:10:17,708 INFO L204 MainTranslator]: Completed translation [2024-11-14 04:10:17,709 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17 WrapperNode [2024-11-14 04:10:17,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 04:10:17,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:17,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 04:10:17,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 04:10:17,719 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,747 INFO L138 Inliner]: procedures = 20, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 69 [2024-11-14 04:10:17,748 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 04:10:17,749 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 04:10:17,749 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 04:10:17,749 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 04:10:17,757 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,764 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,770 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 04:10:17,773 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 04:10:17,773 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 04:10:17,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 04:10:17,774 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (1/1) ... [2024-11-14 04:10:17,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 04:10:17,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 04:10:17,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 04:10:17,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 04:10:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 04:10:17,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-14 04:10:17,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-14 04:10:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-14 04:10:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-14 04:10:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 04:10:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 04:10:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 04:10:17,864 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-14 04:10:17,996 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 04:10:17,997 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 04:10:18,299 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-14 04:10:18,299 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 04:10:18,319 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 04:10:18,319 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-14 04:10:18,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:18 BoogieIcfgContainer [2024-11-14 04:10:18,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 04:10:18,323 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 04:10:18,324 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 04:10:18,330 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 04:10:18,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:10:17" (1/3) ... [2024-11-14 04:10:18,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755a42f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:18, skipping insertion in model container [2024-11-14 04:10:18,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:10:17" (2/3) ... [2024-11-14 04:10:18,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@755a42f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:10:18, skipping insertion in model container [2024-11-14 04:10:18,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:18" (3/3) ... [2024-11-14 04:10:18,334 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy1.wvr.c [2024-11-14 04:10:18,357 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 04:10:18,361 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy1.wvr.c that has 3 procedures, 124 locations, 1 initial locations, 2 loop locations, and 13 error locations. [2024-11-14 04:10:18,361 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-14 04:10:18,479 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-14 04:10:18,525 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 130 places, 130 transitions, 274 flow [2024-11-14 04:10:18,689 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1276 states, 1254 states have (on average 2.6610845295055823) internal successors, (3337), 1275 states have internal predecessors, (3337), 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) [2024-11-14 04:10:18,729 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 04:10:18,742 INFO L333 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, 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;@3d2d10c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 04:10:18,742 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-14 04:10:18,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 1276 states, 1254 states have (on average 2.6610845295055823) internal successors, (3337), 1275 states have internal predecessors, (3337), 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) [2024-11-14 04:10:18,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-14 04:10:18,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:18,759 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:18,759 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-14 04:10:18,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:18,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1126069679, now seen corresponding path program 1 times [2024-11-14 04:10:18,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:18,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779113977] [2024-11-14 04:10:18,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:18,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:18,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:19,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:19,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779113977] [2024-11-14 04:10:19,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779113977] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:19,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:19,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:19,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861132312] [2024-11-14 04:10:19,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:19,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:10:19,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:10:19,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:10:19,099 INFO L87 Difference]: Start difference. First operand has 1276 states, 1254 states have (on average 2.6610845295055823) internal successors, (3337), 1275 states have internal predecessors, (3337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-14 04:10:19,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:19,342 INFO L93 Difference]: Finished difference Result 2505 states and 6625 transitions. [2024-11-14 04:10:19,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:10:19,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-14 04:10:19,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:19,388 INFO L225 Difference]: With dead ends: 2505 [2024-11-14 04:10:19,389 INFO L226 Difference]: Without dead ends: 1274 [2024-11-14 04:10:19,401 INFO L431 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 [2024-11-14 04:10:19,405 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:19,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 181 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:19,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1274 states. [2024-11-14 04:10:19,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1274 to 1274. [2024-11-14 04:10:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1274 states, 1253 states have (on average 2.564245810055866) internal successors, (3213), 1273 states have internal predecessors, (3213), 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) [2024-11-14 04:10:19,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1274 states to 1274 states and 3213 transitions. [2024-11-14 04:10:19,557 INFO L78 Accepts]: Start accepts. Automaton has 1274 states and 3213 transitions. Word has length 18 [2024-11-14 04:10:19,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:19,558 INFO L471 AbstractCegarLoop]: Abstraction has 1274 states and 3213 transitions. [2024-11-14 04:10:19,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-14 04:10:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 1274 states and 3213 transitions. [2024-11-14 04:10:19,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-14 04:10:19,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:19,559 INFO L215 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] [2024-11-14 04:10:19,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 04:10:19,560 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-14 04:10:19,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:19,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1470231103, now seen corresponding path program 1 times [2024-11-14 04:10:19,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:19,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758903808] [2024-11-14 04:10:19,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:19,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:19,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:19,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:19,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758903808] [2024-11-14 04:10:19,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758903808] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:19,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:19,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:19,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993822076] [2024-11-14 04:10:19,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:19,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:10:19,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:19,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:10:19,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:10:19,686 INFO L87 Difference]: Start difference. First operand 1274 states and 3213 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-14 04:10:19,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:19,792 INFO L93 Difference]: Finished difference Result 1274 states and 3213 transitions. [2024-11-14 04:10:19,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:10:19,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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 26 [2024-11-14 04:10:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:19,809 INFO L225 Difference]: With dead ends: 1274 [2024-11-14 04:10:19,810 INFO L226 Difference]: Without dead ends: 1273 [2024-11-14 04:10:19,811 INFO L431 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 [2024-11-14 04:10:19,813 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 2 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:19,815 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 181 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2024-11-14 04:10:19,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1273. [2024-11-14 04:10:19,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1273 states, 1253 states have (on average 2.5634477254588988) internal successors, (3212), 1272 states have internal predecessors, (3212), 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) [2024-11-14 04:10:19,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1273 states to 1273 states and 3212 transitions. [2024-11-14 04:10:19,913 INFO L78 Accepts]: Start accepts. Automaton has 1273 states and 3212 transitions. Word has length 26 [2024-11-14 04:10:19,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:19,914 INFO L471 AbstractCegarLoop]: Abstraction has 1273 states and 3212 transitions. [2024-11-14 04:10:19,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 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) [2024-11-14 04:10:19,915 INFO L276 IsEmpty]: Start isEmpty. Operand 1273 states and 3212 transitions. [2024-11-14 04:10:19,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-14 04:10:19,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:19,916 INFO L215 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] [2024-11-14 04:10:19,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 04:10:19,917 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-14 04:10:19,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:19,920 INFO L85 PathProgramCache]: Analyzing trace with hash -179489854, now seen corresponding path program 1 times [2024-11-14 04:10:19,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:19,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780417438] [2024-11-14 04:10:19,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:19,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:19,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:19,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780417438] [2024-11-14 04:10:19,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780417438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:19,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:19,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175139203] [2024-11-14 04:10:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:19,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:10:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:10:19,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:10:19,981 INFO L87 Difference]: Start difference. First operand 1273 states and 3212 transitions. Second operand has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-14 04:10:20,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:20,139 INFO L93 Difference]: Finished difference Result 1336 states and 3376 transitions. [2024-11-14 04:10:20,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:10:20,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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 30 [2024-11-14 04:10:20,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:20,152 INFO L225 Difference]: With dead ends: 1336 [2024-11-14 04:10:20,153 INFO L226 Difference]: Without dead ends: 1207 [2024-11-14 04:10:20,158 INFO L431 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 [2024-11-14 04:10:20,159 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 62 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:20,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 145 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:20,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1207 states. [2024-11-14 04:10:20,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1207 to 1144. [2024-11-14 04:10:20,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1144 states, 1135 states have (on average 2.5383259911894274) internal successors, (2881), 1143 states have internal predecessors, (2881), 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) [2024-11-14 04:10:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1144 states to 1144 states and 2881 transitions. [2024-11-14 04:10:20,241 INFO L78 Accepts]: Start accepts. Automaton has 1144 states and 2881 transitions. Word has length 30 [2024-11-14 04:10:20,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:20,242 INFO L471 AbstractCegarLoop]: Abstraction has 1144 states and 2881 transitions. [2024-11-14 04:10:20,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.0) internal successors, (30), 3 states have internal predecessors, (30), 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) [2024-11-14 04:10:20,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1144 states and 2881 transitions. [2024-11-14 04:10:20,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-14 04:10:20,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:20,243 INFO L215 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] [2024-11-14 04:10:20,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 04:10:20,244 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-14 04:10:20,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:20,245 INFO L85 PathProgramCache]: Analyzing trace with hash -691050330, now seen corresponding path program 1 times [2024-11-14 04:10:20,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:20,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762395518] [2024-11-14 04:10:20,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:20,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:20,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:20,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:20,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762395518] [2024-11-14 04:10:20,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762395518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:20,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:20,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:20,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306904895] [2024-11-14 04:10:20,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:20,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:10:20,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:10:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:10:20,315 INFO L87 Difference]: Start difference. First operand 1144 states and 2881 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-14 04:10:20,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:20,428 INFO L93 Difference]: Finished difference Result 1196 states and 3019 transitions. [2024-11-14 04:10:20,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:10:20,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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 32 [2024-11-14 04:10:20,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:20,438 INFO L225 Difference]: With dead ends: 1196 [2024-11-14 04:10:20,438 INFO L226 Difference]: Without dead ends: 1056 [2024-11-14 04:10:20,439 INFO L431 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 [2024-11-14 04:10:20,440 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 57 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:20,440 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 138 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 04:10:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2024-11-14 04:10:20,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1004. [2024-11-14 04:10:20,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1001 states have (on average 2.5184815184815186) internal successors, (2521), 1003 states have internal predecessors, (2521), 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) [2024-11-14 04:10:20,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 2521 transitions. [2024-11-14 04:10:20,501 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 2521 transitions. Word has length 32 [2024-11-14 04:10:20,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:20,502 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 2521 transitions. [2024-11-14 04:10:20,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-14 04:10:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 2521 transitions. [2024-11-14 04:10:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 04:10:20,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:20,504 INFO L215 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] [2024-11-14 04:10:20,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 04:10:20,506 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-14 04:10:20,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash 469193206, now seen corresponding path program 1 times [2024-11-14 04:10:20,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:20,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734503279] [2024-11-14 04:10:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:20,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:20,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:20,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:20,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734503279] [2024-11-14 04:10:20,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734503279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:20,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:20,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:20,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994994831] [2024-11-14 04:10:20,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:20,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:10:20,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:20,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:10:20,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:10:20,618 INFO L87 Difference]: Start difference. First operand 1004 states and 2521 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) [2024-11-14 04:10:20,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:20,687 INFO L93 Difference]: Finished difference Result 1004 states and 2521 transitions. [2024-11-14 04:10:20,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:10:20,687 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 [2024-11-14 04:10:20,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:20,695 INFO L225 Difference]: With dead ends: 1004 [2024-11-14 04:10:20,695 INFO L226 Difference]: Without dead ends: 830 [2024-11-14 04:10:20,696 INFO L431 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 [2024-11-14 04:10:20,698 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 27 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:20,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 184 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:10:20,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2024-11-14 04:10:20,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2024-11-14 04:10:20,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 2.4861278648974667) internal successors, (2061), 829 states have internal predecessors, (2061), 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) [2024-11-14 04:10:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2061 transitions. [2024-11-14 04:10:20,770 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2061 transitions. Word has length 56 [2024-11-14 04:10:20,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:20,772 INFO L471 AbstractCegarLoop]: Abstraction has 830 states and 2061 transitions. [2024-11-14 04:10:20,773 INFO L472 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) [2024-11-14 04:10:20,773 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2061 transitions. [2024-11-14 04:10:20,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-14 04:10:20,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 04:10:20,779 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 04:10:20,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 04:10:20,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread2Err0ASSERT_VIOLATIONDATA_RACE (and 17 more)] === [2024-11-14 04:10:20,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 04:10:20,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1210610318, now seen corresponding path program 1 times [2024-11-14 04:10:20,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 04:10:20,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539075690] [2024-11-14 04:10:20,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 04:10:20,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 04:10:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 04:10:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-14 04:10:20,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 04:10:20,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539075690] [2024-11-14 04:10:20,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539075690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 04:10:20,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 04:10:20,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-14 04:10:20,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885039813] [2024-11-14 04:10:20,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 04:10:20,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 04:10:20,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 04:10:20,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 04:10:20,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 04:10:20,900 INFO L87 Difference]: Start difference. First operand 830 states and 2061 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-14 04:10:20,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 04:10:20,980 INFO L93 Difference]: Finished difference Result 830 states and 2061 transitions. [2024-11-14 04:10:20,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 04:10:20,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2024-11-14 04:10:20,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 04:10:20,985 INFO L225 Difference]: With dead ends: 830 [2024-11-14 04:10:20,985 INFO L226 Difference]: Without dead ends: 0 [2024-11-14 04:10:20,990 INFO L431 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 [2024-11-14 04:10:20,991 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 21 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 04:10:20,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 172 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 04:10:20,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-14 04:10:20,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-14 04:10:20,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-14 04:10:20,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-14 04:10:20,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2024-11-14 04:10:20,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 04:10:20,998 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-14 04:10:20,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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) [2024-11-14 04:10:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-14 04:10:20,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-14 04:10:21,001 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (20 of 21 remaining) [2024-11-14 04:10:21,003 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (19 of 21 remaining) [2024-11-14 04:10:21,004 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (18 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (17 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (16 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (15 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (13 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (12 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (11 of 21 remaining) [2024-11-14 04:10:21,005 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (10 of 21 remaining) [2024-11-14 04:10:21,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (9 of 21 remaining) [2024-11-14 04:10:21,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (8 of 21 remaining) [2024-11-14 04:10:21,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 21 remaining) [2024-11-14 04:10:21,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 21 remaining) [2024-11-14 04:10:21,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (5 of 21 remaining) [2024-11-14 04:10:21,006 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (4 of 21 remaining) [2024-11-14 04:10:21,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (3 of 21 remaining) [2024-11-14 04:10:21,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (2 of 21 remaining) [2024-11-14 04:10:21,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (1 of 21 remaining) [2024-11-14 04:10:21,007 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (0 of 21 remaining) [2024-11-14 04:10:21,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 04:10:21,012 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-14 04:10:21,017 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-14 04:10:21,017 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-14 04:10:21,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:10:21 BasicIcfg [2024-11-14 04:10:21,020 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-14 04:10:21,021 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-14 04:10:21,021 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-14 04:10:21,021 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-14 04:10:21,022 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:10:18" (3/4) ... [2024-11-14 04:10:21,024 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-14 04:10:21,027 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-14 04:10:21,027 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-14 04:10:21,031 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-14 04:10:21,031 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-14 04:10:21,032 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-14 04:10:21,032 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-14 04:10:21,117 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/witness.graphml [2024-11-14 04:10:21,117 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/witness.yml [2024-11-14 04:10:21,117 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-14 04:10:21,118 INFO L158 Benchmark]: Toolchain (without parser) took 3719.37ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 62.7MB in the end (delta: 29.9MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2024-11-14 04:10:21,119 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:21,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.38ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 81.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:10:21,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.06ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:21,120 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 842.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:10:21,120 INFO L158 Benchmark]: RCFGBuilder took 547.32ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 65.8MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-14 04:10:21,121 INFO L158 Benchmark]: TraceAbstraction took 2697.13ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 66.7MB in the end (delta: -1.4MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2024-11-14 04:10:21,121 INFO L158 Benchmark]: Witness Printer took 96.31ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 62.7MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-14 04:10:21,123 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.38ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 81.2MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.06ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 79.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.0MB in the end (delta: 842.5kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 547.32ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 65.8MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2697.13ms. Allocated memory is still 117.4MB. Free memory was 65.3MB in the beginning and 66.7MB in the end (delta: -1.4MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Witness Printer took 96.31ms. Allocated memory is still 117.4MB. Free memory was 66.7MB in the beginning and 62.7MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 41]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 42]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 59]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 60]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 61]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 164 locations, 21 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 1001 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 407 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 122 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 594 mSDtfsCounter, 122 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1276occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 115 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 218 ConstructedInterpolants, 0 QuantifiedInterpolants, 230 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-14 04:10:21,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41833791-5a05-4a5f-aae1-7cc9f536cc87/bin/utaipan-verify-sOmjnqqW8E/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 Result: TRUE