./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/unroll-5.wvr.c --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_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/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_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/weaver/unroll-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/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_51a156f4-42d9-4154-a508-9be7e05a5b73/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 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:55:31,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:55:31,644 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:55:31,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:55:31,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:55:31,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:55:31,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:55:31,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:55:31,678 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:55:31,679 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:55:31,680 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:55:31,680 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:55:31,681 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:55:31,682 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:55:31,682 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:55:31,683 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:55:31,683 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:55:31,684 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:55:31,685 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:55:31,685 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:55:31,686 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:55:31,687 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:55:31,687 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:55:31,688 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:55:31,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:55:31,689 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:55:31,690 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:55:31,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:55:31,691 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:55:31,711 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:55:31,712 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:55:31,713 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:55:31,713 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:55:31,713 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:55:31,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:55:31,714 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:55:31,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:55:31,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:55:31,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:31,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:55:31,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:55:31,717 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:55:31,717 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:55:31,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:55:31,718 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:55:31,718 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:55:31,718 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:55:31,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:55:31,719 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_51a156f4-42d9-4154-a508-9be7e05a5b73/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 624ca078114fa3c35bb1960efece3c50cba0d03b97522c4936fd5f6e5d783f29 [2023-11-24 23:55:32,009 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:55:32,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:55:32,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:55:32,037 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:55:32,037 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:55:32,039 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/weaver/unroll-5.wvr.c [2023-11-24 23:55:35,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:55:35,475 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:55:35,476 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/sv-benchmarks/c/weaver/unroll-5.wvr.c [2023-11-24 23:55:35,486 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/data/d69f0d929/c3812d22cc244cb8ba4cd17a66add787/FLAG1ab357602 [2023-11-24 23:55:35,504 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/data/d69f0d929/c3812d22cc244cb8ba4cd17a66add787 [2023-11-24 23:55:35,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:55:35,512 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:55:35,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:35,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:55:35,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:55:35,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c0ab280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35, skipping insertion in model container [2023-11-24 23:55:35,524 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,560 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:55:35,781 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:35,790 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:55:35,830 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:55:35,855 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:55:35,856 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35 WrapperNode [2023-11-24 23:55:35,857 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:55:35,858 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:35,858 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:55:35,858 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:55:35,866 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,896 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,938 INFO L138 Inliner]: procedures = 24, calls = 39, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 352 [2023-11-24 23:55:35,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:55:35,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:55:35,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:55:35,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:55:35,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:35,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:36,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:36,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:36,025 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:36,028 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:36,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:55:36,040 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:55:36,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:55:36,042 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:55:36,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (1/1) ... [2023-11-24 23:55:36,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:55:36,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:55:36,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:55:36,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51a156f4-42d9-4154-a508-9be7e05a5b73/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:55:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:55:36,132 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 23:55:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 23:55:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 23:55:36,133 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 23:55:36,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:55:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:55:36,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:55:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:55:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:55:36,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:55:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:55:36,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:55:36,139 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 23:55:36,254 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:55:36,256 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:55:37,019 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:55:37,041 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:55:37,042 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-24 23:55:37,044 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:37 BoogieIcfgContainer [2023-11-24 23:55:37,044 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:55:37,047 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:55:37,047 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:55:37,051 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:55:37,051 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:55:35" (1/3) ... [2023-11-24 23:55:37,052 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc84d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:37, skipping insertion in model container [2023-11-24 23:55:37,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:55:35" (2/3) ... [2023-11-24 23:55:37,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc84d23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:55:37, skipping insertion in model container [2023-11-24 23:55:37,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:55:37" (3/3) ... [2023-11-24 23:55:37,054 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-5.wvr.c [2023-11-24 23:55:37,064 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:55:37,075 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:55:37,075 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2023-11-24 23:55:37,075 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:55:37,273 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-24 23:55:37,338 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 443 places, 459 transitions, 932 flow [2023-11-24 23:55:41,692 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 118924 states, 118213 states have (on average 3.0041281415749537) internal successors, (355127), 118923 states have internal predecessors, (355127), 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 23:55:41,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:55:41,729 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;@7707e323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:55:41,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 101 error locations. [2023-11-24 23:55:41,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 118924 states, 118213 states have (on average 3.0041281415749537) internal successors, (355127), 118923 states have internal predecessors, (355127), 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 23:55:41,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:55:41,880 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:41,881 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] [2023-11-24 23:55:41,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-11-24 23:55:41,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:41,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1884568271, now seen corresponding path program 1 times [2023-11-24 23:55:41,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:41,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495516764] [2023-11-24 23:55:41,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:41,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:42,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:42,145 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 23:55:42,146 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:42,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495516764] [2023-11-24 23:55:42,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495516764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:42,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:42,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:55:42,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267019264] [2023-11-24 23:55:42,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:42,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:42,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:42,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:42,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:42,368 INFO L87 Difference]: Start difference. First operand has 118924 states, 118213 states have (on average 3.0041281415749537) internal successors, (355127), 118923 states have internal predecessors, (355127), 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 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 23:55:44,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:44,446 INFO L93 Difference]: Finished difference Result 118923 states and 347455 transitions. [2023-11-24 23:55:44,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:44,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2023-11-24 23:55:44,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:45,369 INFO L225 Difference]: With dead ends: 118923 [2023-11-24 23:55:45,370 INFO L226 Difference]: Without dead ends: 118906 [2023-11-24 23:55:45,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:45,379 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 820 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:45,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 820 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:55:45,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118906 states. [2023-11-24 23:55:50,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118906 to 118906. [2023-11-24 23:55:50,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118906 states, 118028 states have (on average 2.943513403599146) internal successors, (347417), 118905 states have internal predecessors, (347417), 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 23:55:51,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118906 states to 118906 states and 347417 transitions. [2023-11-24 23:55:51,972 INFO L78 Accepts]: Start accepts. Automaton has 118906 states and 347417 transitions. Word has length 20 [2023-11-24 23:55:51,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:51,973 INFO L495 AbstractCegarLoop]: Abstraction has 118906 states and 347417 transitions. [2023-11-24 23:55:51,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 23:55:51,973 INFO L276 IsEmpty]: Start isEmpty. Operand 118906 states and 347417 transitions. [2023-11-24 23:55:51,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:55:51,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:51,975 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] [2023-11-24 23:55:51,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:55:51,977 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-11-24 23:55:51,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash 155645126, now seen corresponding path program 1 times [2023-11-24 23:55:51,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:51,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098124082] [2023-11-24 23:55:51,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:51,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:52,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:52,098 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 23:55:52,098 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:52,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098124082] [2023-11-24 23:55:52,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098124082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:52,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:52,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:55:52,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872328240] [2023-11-24 23:55:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:52,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:52,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:52,105 INFO L87 Difference]: Start difference. First operand 118906 states and 347417 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 23:55:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:55:53,727 INFO L93 Difference]: Finished difference Result 118905 states and 347416 transitions. [2023-11-24 23:55:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:55:53,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2023-11-24 23:55:53,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:55:54,346 INFO L225 Difference]: With dead ends: 118905 [2023-11-24 23:55:54,346 INFO L226 Difference]: Without dead ends: 118905 [2023-11-24 23:55:54,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:54,349 INFO L413 NwaCegarLoop]: 412 mSDtfsCounter, 2 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:55:54,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 795 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:55:54,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118905 states. [2023-11-24 23:55:57,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118905 to 118905. [2023-11-24 23:55:57,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118905 states, 118028 states have (on average 2.9435049310333143) internal successors, (347416), 118904 states have internal predecessors, (347416), 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 23:55:59,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118905 states to 118905 states and 347416 transitions. [2023-11-24 23:55:59,117 INFO L78 Accepts]: Start accepts. Automaton has 118905 states and 347416 transitions. Word has length 28 [2023-11-24 23:55:59,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:55:59,118 INFO L495 AbstractCegarLoop]: Abstraction has 118905 states and 347416 transitions. [2023-11-24 23:55:59,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 23:55:59,118 INFO L276 IsEmpty]: Start isEmpty. Operand 118905 states and 347416 transitions. [2023-11-24 23:55:59,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 23:55:59,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:55:59,120 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 23:55:59,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:55:59,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-11-24 23:55:59,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:55:59,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1897444993, now seen corresponding path program 1 times [2023-11-24 23:55:59,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:55:59,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090121934] [2023-11-24 23:55:59,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:55:59,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:55:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:55:59,219 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 23:55:59,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:55:59,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090121934] [2023-11-24 23:55:59,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090121934] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:55:59,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:55:59,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:55:59,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590625220] [2023-11-24 23:55:59,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:55:59,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:55:59,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:55:59,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:55:59,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:55:59,223 INFO L87 Difference]: Start difference. First operand 118905 states and 347416 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) [2023-11-24 23:56:00,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:00,069 INFO L93 Difference]: Finished difference Result 114062 states and 333321 transitions. [2023-11-24 23:56:00,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:00,070 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 [2023-11-24 23:56:00,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:00,541 INFO L225 Difference]: With dead ends: 114062 [2023-11-24 23:56:00,541 INFO L226 Difference]: Without dead ends: 114062 [2023-11-24 23:56:00,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:00,544 INFO L413 NwaCegarLoop]: 397 mSDtfsCounter, 371 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:00,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 425 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:01,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114062 states. [2023-11-24 23:56:04,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114062 to 114062. [2023-11-24 23:56:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114062 states, 113366 states have (on average 2.9402201718328245) internal successors, (333321), 114061 states have internal predecessors, (333321), 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 23:56:05,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114062 states to 114062 states and 333321 transitions. [2023-11-24 23:56:05,531 INFO L78 Accepts]: Start accepts. Automaton has 114062 states and 333321 transitions. Word has length 32 [2023-11-24 23:56:05,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:05,533 INFO L495 AbstractCegarLoop]: Abstraction has 114062 states and 333321 transitions. [2023-11-24 23:56:05,533 INFO L496 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) [2023-11-24 23:56:05,533 INFO L276 IsEmpty]: Start isEmpty. Operand 114062 states and 333321 transitions. [2023-11-24 23:56:05,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-24 23:56:05,536 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:05,537 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, 1, 1, 1] [2023-11-24 23:56:05,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:56:05,537 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-11-24 23:56:05,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:05,538 INFO L85 PathProgramCache]: Analyzing trace with hash -978961469, now seen corresponding path program 1 times [2023-11-24 23:56:05,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:05,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221780158] [2023-11-24 23:56:05,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:05,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:06,451 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 23:56:06,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:06,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221780158] [2023-11-24 23:56:06,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221780158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:06,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:06,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:56:06,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673592030] [2023-11-24 23:56:06,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:06,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:56:06,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:06,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:56:06,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:56:06,455 INFO L87 Difference]: Start difference. First operand 114062 states and 333321 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 23:56:07,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:07,543 INFO L93 Difference]: Finished difference Result 114061 states and 333320 transitions. [2023-11-24 23:56:07,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:56:07,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 70 [2023-11-24 23:56:07,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:08,857 INFO L225 Difference]: With dead ends: 114061 [2023-11-24 23:56:08,857 INFO L226 Difference]: Without dead ends: 114061 [2023-11-24 23:56:08,858 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 23:56:08,866 INFO L413 NwaCegarLoop]: 400 mSDtfsCounter, 8 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 737 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:08,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 737 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-24 23:56:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114061 states. [2023-11-24 23:56:12,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114061 to 114061. [2023-11-24 23:56:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114061 states, 113366 states have (on average 2.9402113508459324) internal successors, (333320), 114060 states have internal predecessors, (333320), 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 23:56:14,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114061 states to 114061 states and 333320 transitions. [2023-11-24 23:56:14,149 INFO L78 Accepts]: Start accepts. Automaton has 114061 states and 333320 transitions. Word has length 70 [2023-11-24 23:56:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:14,153 INFO L495 AbstractCegarLoop]: Abstraction has 114061 states and 333320 transitions. [2023-11-24 23:56:14,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 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 23:56:14,155 INFO L276 IsEmpty]: Start isEmpty. Operand 114061 states and 333320 transitions. [2023-11-24 23:56:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-24 23:56:14,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:14,177 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, 1, 1, 1] [2023-11-24 23:56:14,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:56:14,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-11-24 23:56:14,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:14,182 INFO L85 PathProgramCache]: Analyzing trace with hash 766261684, now seen corresponding path program 1 times [2023-11-24 23:56:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:14,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877685876] [2023-11-24 23:56:14,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:14,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:14,338 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 23:56:14,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:14,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877685876] [2023-11-24 23:56:14,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877685876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:14,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:14,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:14,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898197228] [2023-11-24 23:56:14,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:14,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:14,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:14,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:14,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:14,344 INFO L87 Difference]: Start difference. First operand 114061 states and 333320 transitions. Second operand has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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 23:56:15,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:15,205 INFO L93 Difference]: Finished difference Result 114060 states and 333319 transitions. [2023-11-24 23:56:15,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:15,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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 70 [2023-11-24 23:56:15,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:15,643 INFO L225 Difference]: With dead ends: 114060 [2023-11-24 23:56:15,643 INFO L226 Difference]: Without dead ends: 114060 [2023-11-24 23:56:15,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:15,645 INFO L413 NwaCegarLoop]: 402 mSDtfsCounter, 2 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 781 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 [2023-11-24 23:56:15,646 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 781 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:15,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114060 states. [2023-11-24 23:56:19,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114060 to 114060. [2023-11-24 23:56:19,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114060 states, 113366 states have (on average 2.940202529859041) internal successors, (333319), 114059 states have internal predecessors, (333319), 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 23:56:20,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114060 states to 114060 states and 333319 transitions. [2023-11-24 23:56:20,537 INFO L78 Accepts]: Start accepts. Automaton has 114060 states and 333319 transitions. Word has length 70 [2023-11-24 23:56:20,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:20,537 INFO L495 AbstractCegarLoop]: Abstraction has 114060 states and 333319 transitions. [2023-11-24 23:56:20,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 35.0) internal successors, (70), 3 states have internal predecessors, (70), 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 23:56:20,539 INFO L276 IsEmpty]: Start isEmpty. Operand 114060 states and 333319 transitions. [2023-11-24 23:56:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:56:20,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:20,542 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:20,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:56:20,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 97 more)] === [2023-11-24 23:56:20,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:20,543 INFO L85 PathProgramCache]: Analyzing trace with hash -1499534538, now seen corresponding path program 1 times [2023-11-24 23:56:20,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:20,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558113447] [2023-11-24 23:56:20,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:20,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:20,623 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 23:56:20,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:56:20,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558113447] [2023-11-24 23:56:20,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558113447] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:20,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:20,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:20,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195693299] [2023-11-24 23:56:20,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:20,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:20,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:56:20,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:20,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:20,628 INFO L87 Difference]: Start difference. First operand 114060 states and 333319 transitions. Second operand has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 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)