./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.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_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91 --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 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:58:50,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:58:50,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:58:50,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:58:50,503 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:58:50,560 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:58:50,561 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:58:50,562 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:58:50,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:58:50,563 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:58:50,564 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:58:50,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:58:50,565 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:58:50,566 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:58:50,566 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:58:50,567 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:58:50,567 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:58:50,568 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:58:50,568 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:58:50,569 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:58:50,570 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:58:50,570 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:58:50,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:58:50,571 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:58:50,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:58:50,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:58:50,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:58:50,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:58:50,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:58:50,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:58:50,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:58:50,575 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:58:50,575 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:58:50,576 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:58:50,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:58:50,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:58:50,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:58:50,597 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:58:50,597 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:50,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:58:50,598 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:58:50,598 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:58:50,598 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:58:50,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:58:50,599 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:58:50,599 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:58:50,599 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:58:50,600 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:58:50,600 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_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32482febe38d61a93fd0705f3ad97c9c1ccc991b1238f75e4d1dd99bfb01c35e [2023-11-24 23:58:50,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:58:50,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:58:50,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:58:50,918 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:58:50,919 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:58:50,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2023-11-24 23:58:54,074 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:58:54,466 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:58:54,468 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/sv-benchmarks/c/pthread-divine/divinefifo-bug_1w1r.i [2023-11-24 23:58:54,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/data/1d3be256b/fc6bcaf71d9c4dff8346e03b9f0f30c6/FLAG63a4e3cf6 [2023-11-24 23:58:54,511 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/data/1d3be256b/fc6bcaf71d9c4dff8346e03b9f0f30c6 [2023-11-24 23:58:54,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:58:54,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:58:54,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:54,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:58:54,523 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:58:54,523 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:54" (1/1) ... [2023-11-24 23:58:54,525 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496623a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:54, skipping insertion in model container [2023-11-24 23:58:54,525 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:58:54" (1/1) ... [2023-11-24 23:58:54,577 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:58:55,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:55,381 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:58:55,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:58:55,549 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:58:55,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55 WrapperNode [2023-11-24 23:58:55,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:58:55,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:55,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:58:55,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:58:55,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,602 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,738 INFO L138 Inliner]: procedures = 277, calls = 111, calls flagged for inlining = 27, calls inlined = 29, statements flattened = 980 [2023-11-24 23:58:55,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:58:55,740 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:58:55,740 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:58:55,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:58:55,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,909 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,935 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:58:55,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:58:55,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:58:55,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:58:55,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (1/1) ... [2023-11-24 23:58:55,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:58:56,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:58:56,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:58:56,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b0aa1e-fae1-44ff-9e57-4235135860b4/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:58:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2023-11-24 23:58:56,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2023-11-24 23:58:56,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:58:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:58:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:58:56,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:58:56,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:58:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:58:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:58:56,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:58:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:58:56,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:58:56,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:58:56,159 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 23:58:56,367 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:58:56,370 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:58:58,356 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:58:58,404 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:58:58,407 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-24 23:58:58,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:58 BoogieIcfgContainer [2023-11-24 23:58:58,410 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:58:58,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:58:58,415 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:58:58,421 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:58:58,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:58:54" (1/3) ... [2023-11-24 23:58:58,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd2a019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:58, skipping insertion in model container [2023-11-24 23:58:58,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:58:55" (2/3) ... [2023-11-24 23:58:58,426 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fd2a019 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:58:58, skipping insertion in model container [2023-11-24 23:58:58,426 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:58:58" (3/3) ... [2023-11-24 23:58:58,428 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.i [2023-11-24 23:58:58,440 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:58:58,454 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:58:58,454 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 99 error locations. [2023-11-24 23:58:58,454 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:58:58,765 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-11-24 23:58:58,833 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 1138 places, 1178 transitions, 2363 flow [2023-11-24 23:59:02,882 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 109853 states, 108854 states have (on average 2.0781689235122274) internal successors, (226217), 109852 states have internal predecessors, (226217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:02,947 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:59:02,964 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;@19e5ace0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:59:02,965 INFO L358 AbstractCegarLoop]: Starting to check reachability of 115 error locations. [2023-11-24 23:59:03,101 INFO L276 IsEmpty]: Start isEmpty. Operand has 109853 states, 108854 states have (on average 2.0781689235122274) internal successors, (226217), 109852 states have internal predecessors, (226217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 23:59:03,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:03,114 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] [2023-11-24 23:59:03,115 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [pusherErr0ASSERT_VIOLATIONDATA_RACE, pusherErr1ASSERT_VIOLATIONDATA_RACE, pusherErr2ASSERT_VIOLATIONDATA_RACE, pusherErr6ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-24 23:59:03,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:03,127 INFO L85 PathProgramCache]: Analyzing trace with hash -82470856, now seen corresponding path program 1 times [2023-11-24 23:59:03,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:03,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743328451] [2023-11-24 23:59:03,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:03,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:03,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:04,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:04,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:04,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743328451] [2023-11-24 23:59:04,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743328451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:04,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:04,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:04,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792434602] [2023-11-24 23:59:04,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:04,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:59:04,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:04,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:59:04,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:05,062 INFO L87 Difference]: Start difference. First operand has 109853 states, 108854 states have (on average 2.0781689235122274) internal successors, (226217), 109852 states have internal predecessors, (226217), 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 6 states, 5 states have (on average 6.4) internal successors, (32), 6 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) [2023-11-24 23:59:08,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:08,126 INFO L93 Difference]: Finished difference Result 107190 states and 217211 transitions. [2023-11-24 23:59:08,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:08,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 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 [2023-11-24 23:59:08,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:08,693 INFO L225 Difference]: With dead ends: 107190 [2023-11-24 23:59:08,694 INFO L226 Difference]: Without dead ends: 107085 [2023-11-24 23:59:08,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:08,700 INFO L413 NwaCegarLoop]: 1099 mSDtfsCounter, 15 mSDsluCounter, 1016 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2115 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:08,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2115 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-24 23:59:09,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107085 states. [2023-11-24 23:59:11,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107085 to 107085. [2023-11-24 23:59:12,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107085 states, 105967 states have (on average 2.04790170524786) internal successors, (217010), 107084 states have internal predecessors, (217010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:13,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107085 states to 107085 states and 217010 transitions. [2023-11-24 23:59:13,184 INFO L78 Accepts]: Start accepts. Automaton has 107085 states and 217010 transitions. Word has length 32 [2023-11-24 23:59:13,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:13,185 INFO L495 AbstractCegarLoop]: Abstraction has 107085 states and 217010 transitions. [2023-11-24 23:59:13,185 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 6 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) [2023-11-24 23:59:13,186 INFO L276 IsEmpty]: Start isEmpty. Operand 107085 states and 217010 transitions. [2023-11-24 23:59:13,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 23:59:13,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:13,188 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] [2023-11-24 23:59:13,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:59:13,189 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [pusherErr0ASSERT_VIOLATIONDATA_RACE, pusherErr1ASSERT_VIOLATIONDATA_RACE, pusherErr2ASSERT_VIOLATIONDATA_RACE, pusherErr6ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-24 23:59:13,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:13,190 INFO L85 PathProgramCache]: Analyzing trace with hash -2104998173, now seen corresponding path program 1 times [2023-11-24 23:59:13,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:13,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462198999] [2023-11-24 23:59:13,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:13,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:13,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:13,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:13,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:13,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462198999] [2023-11-24 23:59:13,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462198999] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:13,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:13,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:13,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176623010] [2023-11-24 23:59:13,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:13,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:59:13,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:13,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:59:13,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:13,715 INFO L87 Difference]: Start difference. First operand 107085 states and 217010 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:15,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:15,991 INFO L93 Difference]: Finished difference Result 107084 states and 217009 transitions. [2023-11-24 23:59:15,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:15,992 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 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 39 [2023-11-24 23:59:15,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:16,388 INFO L225 Difference]: With dead ends: 107084 [2023-11-24 23:59:16,389 INFO L226 Difference]: Without dead ends: 107084 [2023-11-24 23:59:16,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:16,391 INFO L413 NwaCegarLoop]: 1096 mSDtfsCounter, 4 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2094 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:16,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2094 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-24 23:59:16,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107084 states. [2023-11-24 23:59:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107084 to 107084. [2023-11-24 23:59:19,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107084 states, 105967 states have (on average 2.047892268347693) internal successors, (217009), 107083 states have internal predecessors, (217009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:20,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107084 states to 107084 states and 217009 transitions. [2023-11-24 23:59:20,099 INFO L78 Accepts]: Start accepts. Automaton has 107084 states and 217009 transitions. Word has length 39 [2023-11-24 23:59:20,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:20,099 INFO L495 AbstractCegarLoop]: Abstraction has 107084 states and 217009 transitions. [2023-11-24 23:59:20,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 107084 states and 217009 transitions. [2023-11-24 23:59:20,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-24 23:59:20,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:20,102 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] [2023-11-24 23:59:20,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:59:20,103 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [pusherErr0ASSERT_VIOLATIONDATA_RACE, pusherErr1ASSERT_VIOLATIONDATA_RACE, pusherErr2ASSERT_VIOLATIONDATA_RACE, pusherErr6ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-24 23:59:20,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:20,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1162512593, now seen corresponding path program 1 times [2023-11-24 23:59:20,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:20,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486881751] [2023-11-24 23:59:20,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:20,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:20,601 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486881751] [2023-11-24 23:59:20,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486881751] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:20,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:20,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:20,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792134228] [2023-11-24 23:59:20,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:20,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:59:20,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:20,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:59:20,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:20,613 INFO L87 Difference]: Start difference. First operand 107084 states and 217009 transitions. Second operand has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:23,184 INFO L93 Difference]: Finished difference Result 107083 states and 217008 transitions. [2023-11-24 23:59:23,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:23,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 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 48 [2023-11-24 23:59:23,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:23,644 INFO L225 Difference]: With dead ends: 107083 [2023-11-24 23:59:23,644 INFO L226 Difference]: Without dead ends: 107083 [2023-11-24 23:59:23,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:23,653 INFO L413 NwaCegarLoop]: 1095 mSDtfsCounter, 1 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 1204 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:23,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2095 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1204 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-24 23:59:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107083 states. [2023-11-24 23:59:26,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107083 to 107083. [2023-11-24 23:59:26,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107083 states, 105967 states have (on average 2.047882831447526) internal successors, (217008), 107082 states have internal predecessors, (217008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:26,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107083 states to 107083 states and 217008 transitions. [2023-11-24 23:59:26,508 INFO L78 Accepts]: Start accepts. Automaton has 107083 states and 217008 transitions. Word has length 48 [2023-11-24 23:59:26,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:26,508 INFO L495 AbstractCegarLoop]: Abstraction has 107083 states and 217008 transitions. [2023-11-24 23:59:26,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.6) internal successors, (48), 6 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 107083 states and 217008 transitions. [2023-11-24 23:59:26,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-24 23:59:26,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:26,510 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] [2023-11-24 23:59:26,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:59:26,511 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [pusherErr0ASSERT_VIOLATIONDATA_RACE, pusherErr1ASSERT_VIOLATIONDATA_RACE, pusherErr2ASSERT_VIOLATIONDATA_RACE, pusherErr6ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-24 23:59:26,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:26,511 INFO L85 PathProgramCache]: Analyzing trace with hash 314627445, now seen corresponding path program 1 times [2023-11-24 23:59:26,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:26,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533631208] [2023-11-24 23:59:26,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:26,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:27,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:27,005 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:27,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533631208] [2023-11-24 23:59:27,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533631208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:27,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:27,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:27,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135676420] [2023-11-24 23:59:27,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:27,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:59:27,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:27,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:59:27,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:27,008 INFO L87 Difference]: Start difference. First operand 107083 states and 217008 transitions. Second operand has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:28,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:28,997 INFO L93 Difference]: Finished difference Result 107082 states and 217007 transitions. [2023-11-24 23:59:28,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:28,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 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 [2023-11-24 23:59:29,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:29,321 INFO L225 Difference]: With dead ends: 107082 [2023-11-24 23:59:29,321 INFO L226 Difference]: Without dead ends: 107082 [2023-11-24 23:59:29,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:29,323 INFO L413 NwaCegarLoop]: 1087 mSDtfsCounter, 21 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1584 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:29,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1584 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:59:29,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107082 states. [2023-11-24 23:59:32,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107082 to 107082. [2023-11-24 23:59:32,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107082 states, 105967 states have (on average 2.0478733945473593) internal successors, (217007), 107081 states have internal predecessors, (217007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107082 states to 107082 states and 217007 transitions. [2023-11-24 23:59:32,526 INFO L78 Accepts]: Start accepts. Automaton has 107082 states and 217007 transitions. Word has length 60 [2023-11-24 23:59:32,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:59:32,528 INFO L495 AbstractCegarLoop]: Abstraction has 107082 states and 217007 transitions. [2023-11-24 23:59:32,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:32,529 INFO L276 IsEmpty]: Start isEmpty. Operand 107082 states and 217007 transitions. [2023-11-24 23:59:32,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-24 23:59:32,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:59:32,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:59:32,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:59:32,533 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [pusherErr0ASSERT_VIOLATIONDATA_RACE, pusherErr1ASSERT_VIOLATIONDATA_RACE, pusherErr2ASSERT_VIOLATIONDATA_RACE, pusherErr6ASSERT_VIOLATIONDATA_RACE (and 111 more)] === [2023-11-24 23:59:32,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:59:32,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1166847594, now seen corresponding path program 1 times [2023-11-24 23:59:32,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:59:32,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771240868] [2023-11-24 23:59:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:59:32,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:59:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:59:33,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:59:33,014 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:59:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771240868] [2023-11-24 23:59:33,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771240868] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:59:33,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:59:33,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:59:33,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799945843] [2023-11-24 23:59:33,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:59:33,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:59:33,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:59:33,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:59:33,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:33,019 INFO L87 Difference]: Start difference. First operand 107082 states and 217007 transitions. Second operand has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:59:35,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:59:35,705 INFO L93 Difference]: Finished difference Result 107081 states and 217006 transitions. [2023-11-24 23:59:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:59:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.4) internal successors, (67), 6 states have internal predecessors, (67), 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 67 [2023-11-24 23:59:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:59:35,948 INFO L225 Difference]: With dead ends: 107081 [2023-11-24 23:59:35,948 INFO L226 Difference]: Without dead ends: 107081 [2023-11-24 23:59:35,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:59:35,949 INFO L413 NwaCegarLoop]: 1093 mSDtfsCounter, 8 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 1792 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2584 SdHoareTripleChecker+Invalid, 1792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:59:35,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2584 Invalid, 1792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1792 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-24 23:59:36,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107081 states.