./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread/stack_longer-2.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_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/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_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/stack_longer-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/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_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/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 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:48:45,190 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:48:45,314 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:48:45,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:48:45,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:48:45,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:48:45,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:48:45,363 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:48:45,364 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:48:45,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:48:45,370 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:48:45,370 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:48:45,371 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:48:45,373 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:48:45,373 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:48:45,374 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:48:45,374 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:48:45,375 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:48:45,375 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:48:45,375 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:48:45,376 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:48:45,377 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:48:45,378 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:48:45,378 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:48:45,379 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:48:45,379 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:48:45,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:48:45,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:48:45,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:48:45,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:48:45,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:48:45,383 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:48:45,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:48:45,383 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:48:45,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:48:45,384 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:48:45,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:48:45,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:48:45,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:45,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:48:45,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:48:45,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:48:45,386 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:48:45,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:48:45,387 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:48:45,387 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:48:45,387 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:48:45,387 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:48:45,387 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_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 402cb3c5f3290109e83e598d96446a87fac59fa4aaa0b6234366e7da005f5688 [2023-11-24 23:48:45,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:48:45,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:48:45,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:48:45,750 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:48:45,751 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:48:45,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread/stack_longer-2.i [2023-11-24 23:48:48,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:48:49,317 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:48:49,317 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/sv-benchmarks/c/pthread/stack_longer-2.i [2023-11-24 23:48:49,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/data/bbfa88b60/16a914675e054ee7b81881632877a674/FLAGf92234980 [2023-11-24 23:48:49,361 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/data/bbfa88b60/16a914675e054ee7b81881632877a674 [2023-11-24 23:48:49,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:48:49,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:48:49,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:49,372 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:48:49,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:48:49,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:49" (1/1) ... [2023-11-24 23:48:49,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c10455a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:49, skipping insertion in model container [2023-11-24 23:48:49,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:48:49" (1/1) ... [2023-11-24 23:48:49,446 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:48:50,031 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:50,045 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:48:50,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:48:50,196 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:48:50,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50 WrapperNode [2023-11-24 23:48:50,197 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:48:50,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:50,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:48:50,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:48:50,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,306 INFO L138 Inliner]: procedures = 278, calls = 41, calls flagged for inlining = 12, calls inlined = 13, statements flattened = 204 [2023-11-24 23:48:50,308 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:48:50,308 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:48:50,309 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:48:50,309 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:48:50,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,340 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,347 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,381 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,384 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,386 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,390 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:48:50,391 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:48:50,392 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:48:50,392 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:48:50,397 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (1/1) ... [2023-11-24 23:48:50,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:48:50,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:48:50,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:48:50,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e7aa1a7-5eae-4dbf-a8ae-3f9b4dcdbce7/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:48:50,479 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2023-11-24 23:48:50,479 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2023-11-24 23:48:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2023-11-24 23:48:50,480 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2023-11-24 23:48:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:48:50,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:48:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 23:48:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:48:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:48:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 23:48:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:48:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:48:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:48:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:48:50,485 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 23:48:50,669 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:48:50,672 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:48:51,137 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:48:51,168 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:48:51,168 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:48:51,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:51 BoogieIcfgContainer [2023-11-24 23:48:51,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:48:51,174 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:48:51,174 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:48:51,177 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:48:51,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:48:49" (1/3) ... [2023-11-24 23:48:51,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35161f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:51, skipping insertion in model container [2023-11-24 23:48:51,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:48:50" (2/3) ... [2023-11-24 23:48:51,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35161f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:48:51, skipping insertion in model container [2023-11-24 23:48:51,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:48:51" (3/3) ... [2023-11-24 23:48:51,181 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longer-2.i [2023-11-24 23:48:51,190 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:48:51,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:48:51,203 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2023-11-24 23:48:51,203 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:48:51,327 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-24 23:48:51,392 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 221 places, 226 transitions, 466 flow [2023-11-24 23:48:53,912 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 59478 states, 59388 states have (on average 3.0164511349094094) internal successors, (179141), 59477 states have internal predecessors, (179141), 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 23:48:53,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:48:53,997 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;@5eaa7c03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:48:54,002 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2023-11-24 23:48:54,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 59478 states, 59388 states have (on average 3.0164511349094094) internal successors, (179141), 59477 states have internal predecessors, (179141), 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 23:48:54,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 23:48:54,157 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:48:54,158 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] [2023-11-24 23:48:54,159 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2Err0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:48:54,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:48:54,165 INFO L85 PathProgramCache]: Analyzing trace with hash -624633929, now seen corresponding path program 1 times [2023-11-24 23:48:54,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:48:54,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585046186] [2023-11-24 23:48:54,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:48:54,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:48:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:48:54,708 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 23:48:54,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:48:54,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585046186] [2023-11-24 23:48:54,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585046186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:48:54,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:48:54,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:48:54,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225310794] [2023-11-24 23:48:54,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:48:54,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:48:54,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:48:54,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:48:54,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:48:54,844 INFO L87 Difference]: Start difference. First operand has 59478 states, 59388 states have (on average 3.0164511349094094) internal successors, (179141), 59477 states have internal predecessors, (179141), 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 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 23:48:56,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:48:56,590 INFO L93 Difference]: Finished difference Result 84471 states and 242195 transitions. [2023-11-24 23:48:56,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:48:56,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2023-11-24 23:48:56,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:48:57,230 INFO L225 Difference]: With dead ends: 84471 [2023-11-24 23:48:57,230 INFO L226 Difference]: Without dead ends: 84393 [2023-11-24 23:48:57,232 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 23:48:57,238 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 156 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:48:57,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 415 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:48:57,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84393 states. [2023-11-24 23:48:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84393 to 54997. [2023-11-24 23:49:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54997 states, 54891 states have (on average 2.878504672897196) internal successors, (158004), 54996 states have internal predecessors, (158004), 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 23:49:01,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54997 states to 54997 states and 158004 transitions. [2023-11-24 23:49:01,020 INFO L78 Accepts]: Start accepts. Automaton has 54997 states and 158004 transitions. Word has length 41 [2023-11-24 23:49:01,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:01,023 INFO L495 AbstractCegarLoop]: Abstraction has 54997 states and 158004 transitions. [2023-11-24 23:49:01,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.5) internal successors, (41), 3 states have internal predecessors, (41), 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 23:49:01,024 INFO L276 IsEmpty]: Start isEmpty. Operand 54997 states and 158004 transitions. [2023-11-24 23:49:01,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-24 23:49:01,038 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:01,040 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] [2023-11-24 23:49:01,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:49:01,041 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:49:01,041 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:01,054 INFO L85 PathProgramCache]: Analyzing trace with hash -389042841, now seen corresponding path program 1 times [2023-11-24 23:49:01,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:01,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537776776] [2023-11-24 23:49:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:01,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:01,736 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 23:49:01,736 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:01,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537776776] [2023-11-24 23:49:01,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537776776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:01,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:01,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:49:01,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991365149] [2023-11-24 23:49:01,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:01,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:49:01,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:01,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:49:01,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:49:01,742 INFO L87 Difference]: Start difference. First operand 54997 states and 158004 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 23:49:03,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:03,185 INFO L93 Difference]: Finished difference Result 81027 states and 230047 transitions. [2023-11-24 23:49:03,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:49:03,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 41 [2023-11-24 23:49:03,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:03,575 INFO L225 Difference]: With dead ends: 81027 [2023-11-24 23:49:03,575 INFO L226 Difference]: Without dead ends: 80747 [2023-11-24 23:49:03,576 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 23:49:03,578 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 578 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:03,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 1434 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-24 23:49:03,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80747 states. [2023-11-24 23:49:06,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80747 to 75005. [2023-11-24 23:49:06,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75005 states, 74899 states have (on average 2.9078625882855578) internal successors, (217796), 75004 states have internal predecessors, (217796), 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 23:49:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75005 states to 75005 states and 217796 transitions. [2023-11-24 23:49:07,415 INFO L78 Accepts]: Start accepts. Automaton has 75005 states and 217796 transitions. Word has length 41 [2023-11-24 23:49:07,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:07,416 INFO L495 AbstractCegarLoop]: Abstraction has 75005 states and 217796 transitions. [2023-11-24 23:49:07,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 6 states have internal predecessors, (41), 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 23:49:07,417 INFO L276 IsEmpty]: Start isEmpty. Operand 75005 states and 217796 transitions. [2023-11-24 23:49:07,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-24 23:49:07,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:07,435 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:49:07,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:49:07,436 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:49:07,436 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:07,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1336250065, now seen corresponding path program 1 times [2023-11-24 23:49:07,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:07,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385921098] [2023-11-24 23:49:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:07,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:07,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:07,586 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 23:49:07,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:07,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385921098] [2023-11-24 23:49:07,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385921098] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:07,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:07,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:49:07,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465620004] [2023-11-24 23:49:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:07,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:49:07,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:07,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:49:07,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:49:07,595 INFO L87 Difference]: Start difference. First operand 75005 states and 217796 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:49:08,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:08,552 INFO L93 Difference]: Finished difference Result 128398 states and 373444 transitions. [2023-11-24 23:49:08,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:49:08,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2023-11-24 23:49:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:09,547 INFO L225 Difference]: With dead ends: 128398 [2023-11-24 23:49:09,548 INFO L226 Difference]: Without dead ends: 128398 [2023-11-24 23:49:09,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:49:09,550 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 154 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:09,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 453 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:49:09,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128398 states. [2023-11-24 23:49:11,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128398 to 75587. [2023-11-24 23:49:12,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75587 states, 75481 states have (on average 2.90788410328427) internal successors, (219490), 75586 states have internal predecessors, (219490), 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 23:49:12,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75587 states to 75587 states and 219490 transitions. [2023-11-24 23:49:12,392 INFO L78 Accepts]: Start accepts. Automaton has 75587 states and 219490 transitions. Word has length 56 [2023-11-24 23:49:12,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:12,393 INFO L495 AbstractCegarLoop]: Abstraction has 75587 states and 219490 transitions. [2023-11-24 23:49:12,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:49:12,394 INFO L276 IsEmpty]: Start isEmpty. Operand 75587 states and 219490 transitions. [2023-11-24 23:49:12,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-24 23:49:12,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:12,411 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] [2023-11-24 23:49:12,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:49:12,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:49:12,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:12,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1514057705, now seen corresponding path program 1 times [2023-11-24 23:49:12,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:12,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311560518] [2023-11-24 23:49:12,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:12,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:12,557 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 23:49:12,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:12,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311560518] [2023-11-24 23:49:12,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311560518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:12,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:12,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:49:12,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494564834] [2023-11-24 23:49:12,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:12,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:49:12,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:12,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:49:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:49:12,561 INFO L87 Difference]: Start difference. First operand 75587 states and 219490 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 23:49:13,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:13,927 INFO L93 Difference]: Finished difference Result 102949 states and 297776 transitions. [2023-11-24 23:49:13,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:49:13,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 57 [2023-11-24 23:49:13,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:14,311 INFO L225 Difference]: With dead ends: 102949 [2023-11-24 23:49:14,311 INFO L226 Difference]: Without dead ends: 102042 [2023-11-24 23:49:14,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 23:49:14,313 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 113 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:14,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 380 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-24 23:49:14,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102042 states. [2023-11-24 23:49:17,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102042 to 98638. [2023-11-24 23:49:17,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98638 states, 98532 states have (on average 2.9127593066211994) internal successors, (287000), 98637 states have internal predecessors, (287000), 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 23:49:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98638 states to 98638 states and 287000 transitions. [2023-11-24 23:49:17,684 INFO L78 Accepts]: Start accepts. Automaton has 98638 states and 287000 transitions. Word has length 57 [2023-11-24 23:49:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:17,684 INFO L495 AbstractCegarLoop]: Abstraction has 98638 states and 287000 transitions. [2023-11-24 23:49:17,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 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 23:49:17,685 INFO L276 IsEmpty]: Start isEmpty. Operand 98638 states and 287000 transitions. [2023-11-24 23:49:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-24 23:49:17,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:17,700 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] [2023-11-24 23:49:17,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:49:17,701 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:49:17,702 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:17,702 INFO L85 PathProgramCache]: Analyzing trace with hash -319157544, now seen corresponding path program 1 times [2023-11-24 23:49:17,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:17,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822881742] [2023-11-24 23:49:17,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:17,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:19,075 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 23:49:19,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:19,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822881742] [2023-11-24 23:49:19,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822881742] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:19,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:19,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:49:19,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789831782] [2023-11-24 23:49:19,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:19,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:49:19,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:19,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:49:19,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:49:19,082 INFO L87 Difference]: Start difference. First operand 98638 states and 287000 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 23:49:20,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:20,121 INFO L93 Difference]: Finished difference Result 103174 states and 300274 transitions. [2023-11-24 23:49:20,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:49:20,122 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2023-11-24 23:49:20,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:20,579 INFO L225 Difference]: With dead ends: 103174 [2023-11-24 23:49:20,580 INFO L226 Difference]: Without dead ends: 103174 [2023-11-24 23:49:20,580 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 23:49:20,582 INFO L413 NwaCegarLoop]: 451 mSDtfsCounter, 294 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:20,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 940 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-24 23:49:20,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103174 states. [2023-11-24 23:49:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103174 to 101974. [2023-11-24 23:49:23,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101974 states, 101868 states have (on average 2.913024698629599) internal successors, (296744), 101973 states have internal predecessors, (296744), 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 23:49:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101974 states to 101974 states and 296744 transitions. [2023-11-24 23:49:24,148 INFO L78 Accepts]: Start accepts. Automaton has 101974 states and 296744 transitions. Word has length 64 [2023-11-24 23:49:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:24,148 INFO L495 AbstractCegarLoop]: Abstraction has 101974 states and 296744 transitions. [2023-11-24 23:49:24,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 23:49:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 101974 states and 296744 transitions. [2023-11-24 23:49:24,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:49:24,165 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:24,165 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 23:49:24,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:49:24,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:49:24,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1643240490, now seen corresponding path program 1 times [2023-11-24 23:49:24,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:24,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954406911] [2023-11-24 23:49:24,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:24,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:24,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:25,829 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 23:49:25,830 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:25,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954406911] [2023-11-24 23:49:25,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954406911] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:25,830 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:25,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 23:49:25,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829930790] [2023-11-24 23:49:25,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:25,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:49:25,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:25,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:49:25,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:49:25,838 INFO L87 Difference]: Start difference. First operand 101974 states and 296744 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 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) [2023-11-24 23:49:27,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:49:27,551 INFO L93 Difference]: Finished difference Result 123703 states and 349312 transitions. [2023-11-24 23:49:27,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-24 23:49:27,552 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 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) Word has length 74 [2023-11-24 23:49:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:49:27,931 INFO L225 Difference]: With dead ends: 123703 [2023-11-24 23:49:27,932 INFO L226 Difference]: Without dead ends: 123573 [2023-11-24 23:49:27,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2023-11-24 23:49:27,933 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 1436 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 3884 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:49:27,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 3884 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-24 23:49:28,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123573 states. [2023-11-24 23:49:30,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123573 to 104103. [2023-11-24 23:49:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104103 states, 103997 states have (on average 2.915747569641432) internal successors, (303229), 104102 states have internal predecessors, (303229), 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 23:49:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104103 states to 104103 states and 303229 transitions. [2023-11-24 23:49:31,475 INFO L78 Accepts]: Start accepts. Automaton has 104103 states and 303229 transitions. Word has length 74 [2023-11-24 23:49:31,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:49:31,475 INFO L495 AbstractCegarLoop]: Abstraction has 104103 states and 303229 transitions. [2023-11-24 23:49:31,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 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) [2023-11-24 23:49:31,476 INFO L276 IsEmpty]: Start isEmpty. Operand 104103 states and 303229 transitions. [2023-11-24 23:49:31,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-24 23:49:31,489 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:49:31,489 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 23:49:31,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:49:31,489 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 23 more)] === [2023-11-24 23:49:31,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:49:31,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1329898104, now seen corresponding path program 2 times [2023-11-24 23:49:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:49:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491120721] [2023-11-24 23:49:31,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:49:31,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:49:31,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:49:33,163 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 23:49:33,164 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:49:33,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491120721] [2023-11-24 23:49:33,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491120721] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:49:33,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:49:33,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-24 23:49:33,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434582460] [2023-11-24 23:49:33,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:49:33,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-24 23:49:33,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:49:33,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-24 23:49:33,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-11-24 23:49:33,167 INFO L87 Difference]: Start difference. First operand 104103 states and 303229 transitions. Second operand has 12 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 12 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)