./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-atomic/lamport-b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/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_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/lamport-b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/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_ec90e802-45aa-413a-bcfc-ef6f56845ecf/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 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:50:55,072 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:50:55,234 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-24 23:50:55,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:50:55,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:50:55,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:50:55,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:50:55,297 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:50:55,298 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:50:55,304 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:50:55,305 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:50:55,307 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:50:55,307 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:50:55,309 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:50:55,310 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:50:55,311 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:50:55,311 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:50:55,312 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:50:55,313 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:50:55,313 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:50:55,314 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:50:55,315 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:50:55,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:50:55,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:50:55,318 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:50:55,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:50:55,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:50:55,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:50:55,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:50:55,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:50:55,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:50:55,323 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 23:50:55,323 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:50:55,323 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:50:55,324 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:50:55,324 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:50:55,324 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:50:55,325 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:50:55,325 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:50:55,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:50:55,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:50:55,327 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:50:55,327 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:50:55,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:50:55,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:50:55,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:50:55,329 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:50:55,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:50:55,329 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_ec90e802-45aa-413a-bcfc-ef6f56845ecf/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 991793f8d7262fdf8fcd914d5c9fbaf399d7f573a6d3b742f5710da63c18b7e1 [2023-11-24 23:50:55,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:50:55,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:50:55,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:50:55,862 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:50:55,862 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:50:55,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-atomic/lamport-b.i [2023-11-24 23:50:59,350 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:50:59,731 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:50:59,732 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/sv-benchmarks/c/pthread-atomic/lamport-b.i [2023-11-24 23:50:59,750 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/data/240cd9d12/b4beec7980264d07be639eca4b14887b/FLAGe4f94efd2 [2023-11-24 23:50:59,768 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/data/240cd9d12/b4beec7980264d07be639eca4b14887b [2023-11-24 23:50:59,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:50:59,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:50:59,775 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:50:59,775 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:50:59,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:50:59,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:59" (1/1) ... [2023-11-24 23:50:59,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa9ae1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:50:59, skipping insertion in model container [2023-11-24 23:50:59,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:50:59" (1/1) ... [2023-11-24 23:50:59,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:51:00,319 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:00,332 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:51:00,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:51:00,473 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:51:00,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00 WrapperNode [2023-11-24 23:51:00,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:51:00,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:00,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:51:00,476 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:51:00,484 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,503 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,542 INFO L138 Inliner]: procedures = 167, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 225 [2023-11-24 23:51:00,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:51:00,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:51:00,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:51:00,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:51:00,556 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,556 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,561 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,573 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,580 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,586 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:51:00,587 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:51:00,587 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:51:00,587 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:51:00,588 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (1/1) ... [2023-11-24 23:51:00,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:51:00,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:51:00,627 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:51:00,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec90e802-45aa-413a-bcfc-ef6f56845ecf/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:51:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:51:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-11-24 23:51:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-11-24 23:51:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-11-24 23:51:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-11-24 23:51:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:51:00,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:51:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:51:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:51:00,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:51:00,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:51:00,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:51:00,681 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 23:51:00,826 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:51:00,827 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:51:01,228 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:51:01,251 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:51:01,257 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-24 23:51:01,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:01 BoogieIcfgContainer [2023-11-24 23:51:01,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:51:01,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:51:01,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:51:01,268 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:51:01,270 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:50:59" (1/3) ... [2023-11-24 23:51:01,271 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c63a156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:01, skipping insertion in model container [2023-11-24 23:51:01,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:51:00" (2/3) ... [2023-11-24 23:51:01,273 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c63a156 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:51:01, skipping insertion in model container [2023-11-24 23:51:01,274 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:51:01" (3/3) ... [2023-11-24 23:51:01,276 INFO L112 eAbstractionObserver]: Analyzing ICFG lamport-b.i [2023-11-24 23:51:01,287 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 23:51:01,301 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:51:01,301 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-24 23:51:01,301 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 23:51:01,449 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-11-24 23:51:01,494 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 236 places, 255 transitions, 524 flow [2023-11-24 23:51:05,567 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 78775 states, 78248 states have (on average 3.1761450771904713) internal successors, (248527), 78774 states have internal predecessors, (248527), 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 23:51:05,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:51:05,605 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;@4b9cf795, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:51:05,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 64 error locations. [2023-11-24 23:51:05,946 INFO L276 IsEmpty]: Start isEmpty. Operand has 78775 states, 78248 states have (on average 3.1761450771904713) internal successors, (248527), 78774 states have internal predecessors, (248527), 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 23:51:05,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-24 23:51:05,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:05,973 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] [2023-11-24 23:51:05,975 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err11ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:05,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:05,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1864133447, now seen corresponding path program 1 times [2023-11-24 23:51:06,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:06,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462861215] [2023-11-24 23:51:06,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:06,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:06,329 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 23:51:06,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:06,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462861215] [2023-11-24 23:51:06,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462861215] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:06,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:06,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:06,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262091425] [2023-11-24 23:51:06,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:06,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 23:51:06,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:06,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 23:51:06,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:51:06,518 INFO L87 Difference]: Start difference. First operand has 78775 states, 78248 states have (on average 3.1761450771904713) internal successors, (248527), 78774 states have internal predecessors, (248527), 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 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 23:51:08,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:08,421 INFO L93 Difference]: Finished difference Result 73540 states and 220661 transitions. [2023-11-24 23:51:08,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 23:51:08,426 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2023-11-24 23:51:08,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:09,220 INFO L225 Difference]: With dead ends: 73540 [2023-11-24 23:51:09,220 INFO L226 Difference]: Without dead ends: 73516 [2023-11-24 23:51:09,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 23:51:09,226 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 220 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:09,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 220 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:51:09,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73516 states. [2023-11-24 23:51:12,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73516 to 73516. [2023-11-24 23:51:12,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73516 states, 72925 states have (on average 3.024916009598903) internal successors, (220592), 73515 states have internal predecessors, (220592), 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 23:51:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73516 states to 73516 states and 220592 transitions. [2023-11-24 23:51:13,482 INFO L78 Accepts]: Start accepts. Automaton has 73516 states and 220592 transitions. Word has length 25 [2023-11-24 23:51:13,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:13,483 INFO L495 AbstractCegarLoop]: Abstraction has 73516 states and 220592 transitions. [2023-11-24 23:51:13,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 23:51:13,484 INFO L276 IsEmpty]: Start isEmpty. Operand 73516 states and 220592 transitions. [2023-11-24 23:51:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-24 23:51:13,486 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:13,489 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] [2023-11-24 23:51:13,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:51:13,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:13,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:13,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1983146225, now seen corresponding path program 1 times [2023-11-24 23:51:13,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:13,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168940844] [2023-11-24 23:51:13,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:13,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:13,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:13,609 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 23:51:13,609 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:13,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168940844] [2023-11-24 23:51:13,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168940844] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:13,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:13,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:13,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420992462] [2023-11-24 23:51:13,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:13,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:13,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:13,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:13,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:13,621 INFO L87 Difference]: Start difference. First operand 73516 states and 220592 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:51:14,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:14,439 INFO L93 Difference]: Finished difference Result 75150 states and 225436 transitions. [2023-11-24 23:51:14,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:14,440 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-24 23:51:14,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:15,463 INFO L225 Difference]: With dead ends: 75150 [2023-11-24 23:51:15,463 INFO L226 Difference]: Without dead ends: 75150 [2023-11-24 23:51:15,469 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 23:51:15,471 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 105 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:15,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 524 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:51:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75150 states. [2023-11-24 23:51:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75150 to 74320. [2023-11-24 23:51:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74320 states, 73729 states have (on average 3.024305225894831) internal successors, (222979), 74319 states have internal predecessors, (222979), 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 23:51:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74320 states to 74320 states and 222979 transitions. [2023-11-24 23:51:18,204 INFO L78 Accepts]: Start accepts. Automaton has 74320 states and 222979 transitions. Word has length 26 [2023-11-24 23:51:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:18,205 INFO L495 AbstractCegarLoop]: Abstraction has 74320 states and 222979 transitions. [2023-11-24 23:51:18,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:51:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 74320 states and 222979 transitions. [2023-11-24 23:51:18,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:51:18,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:18,208 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] [2023-11-24 23:51:18,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:51:18,209 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:18,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:18,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1997246798, now seen corresponding path program 1 times [2023-11-24 23:51:18,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:18,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030683952] [2023-11-24 23:51:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:18,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:18,280 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 23:51:18,280 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:18,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030683952] [2023-11-24 23:51:18,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030683952] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:18,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:18,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:18,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902868402] [2023-11-24 23:51:18,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:18,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:18,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:18,284 INFO L87 Difference]: Start difference. First operand 74320 states and 222979 transitions. Second operand has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 23:51:19,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:19,516 INFO L93 Difference]: Finished difference Result 75954 states and 227823 transitions. [2023-11-24 23:51:19,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:19,517 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2023-11-24 23:51:19,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:19,926 INFO L225 Difference]: With dead ends: 75954 [2023-11-24 23:51:19,927 INFO L226 Difference]: Without dead ends: 75954 [2023-11-24 23:51:19,927 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 23:51:19,937 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 104 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 525 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:19,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 525 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:51:20,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75954 states. [2023-11-24 23:51:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75954 to 75124. [2023-11-24 23:51:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75124 states, 74533 states have (on average 3.0237076194437362) internal successors, (225366), 75123 states have internal predecessors, (225366), 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 23:51:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75124 states to 75124 states and 225366 transitions. [2023-11-24 23:51:22,804 INFO L78 Accepts]: Start accepts. Automaton has 75124 states and 225366 transitions. Word has length 31 [2023-11-24 23:51:22,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:22,804 INFO L495 AbstractCegarLoop]: Abstraction has 75124 states and 225366 transitions. [2023-11-24 23:51:22,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 15.5) internal successors, (31), 3 states have internal predecessors, (31), 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 23:51:22,805 INFO L276 IsEmpty]: Start isEmpty. Operand 75124 states and 225366 transitions. [2023-11-24 23:51:22,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 23:51:22,807 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:22,807 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 23:51:22,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:51:22,808 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:22,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:22,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1665790603, now seen corresponding path program 1 times [2023-11-24 23:51:22,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:22,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257209153] [2023-11-24 23:51:22,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:22,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:22,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:22,930 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 23:51:22,930 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:22,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257209153] [2023-11-24 23:51:22,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257209153] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:22,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:22,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:22,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446681401] [2023-11-24 23:51:22,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:22,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:22,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:22,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:22,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:22,934 INFO L87 Difference]: Start difference. First operand 75124 states and 225366 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 23:51:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:23,366 INFO L93 Difference]: Finished difference Result 76702 states and 230026 transitions. [2023-11-24 23:51:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:23,366 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 23:51:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:23,616 INFO L225 Difference]: With dead ends: 76702 [2023-11-24 23:51:23,617 INFO L226 Difference]: Without dead ends: 76702 [2023-11-24 23:51:23,617 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 23:51:23,619 INFO L413 NwaCegarLoop]: 324 mSDtfsCounter, 108 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:23,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 527 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:51:23,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76702 states. [2023-11-24 23:51:26,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76702 to 75883. [2023-11-24 23:51:26,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75883 states, 75296 states have (on average 3.022856459838504) internal successors, (227609), 75882 states have internal predecessors, (227609), 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 23:51:26,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75883 states to 75883 states and 227609 transitions. [2023-11-24 23:51:26,636 INFO L78 Accepts]: Start accepts. Automaton has 75883 states and 227609 transitions. Word has length 32 [2023-11-24 23:51:26,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:26,637 INFO L495 AbstractCegarLoop]: Abstraction has 75883 states and 227609 transitions. [2023-11-24 23:51:26,637 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 23:51:26,637 INFO L276 IsEmpty]: Start isEmpty. Operand 75883 states and 227609 transitions. [2023-11-24 23:51:26,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 23:51:26,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:26,644 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] [2023-11-24 23:51:26,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:51:26,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:26,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:26,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1726750732, now seen corresponding path program 1 times [2023-11-24 23:51:26,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:26,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411418961] [2023-11-24 23:51:26,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:26,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:26,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:27,264 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 23:51:27,264 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:27,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411418961] [2023-11-24 23:51:27,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411418961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:27,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:27,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-24 23:51:27,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515865363] [2023-11-24 23:51:27,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:27,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-24 23:51:27,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:27,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-24 23:51:27,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-24 23:51:27,268 INFO L87 Difference]: Start difference. First operand 75883 states and 227609 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 23:51:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:27,894 INFO L93 Difference]: Finished difference Result 68421 states and 204358 transitions. [2023-11-24 23:51:27,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 23:51:27,895 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 33 [2023-11-24 23:51:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:28,896 INFO L225 Difference]: With dead ends: 68421 [2023-11-24 23:51:28,897 INFO L226 Difference]: Without dead ends: 68253 [2023-11-24 23:51:28,897 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 23:51:28,913 INFO L413 NwaCegarLoop]: 929 mSDtfsCounter, 738 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1851 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:28,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1851 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:51:29,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68253 states. [2023-11-24 23:51:30,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68253 to 68253. [2023-11-24 23:51:30,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68253 states, 67953 states have (on average 3.0002354568598886) internal successors, (203875), 68252 states have internal predecessors, (203875), 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 23:51:31,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68253 states to 68253 states and 203875 transitions. [2023-11-24 23:51:31,032 INFO L78 Accepts]: Start accepts. Automaton has 68253 states and 203875 transitions. Word has length 33 [2023-11-24 23:51:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:31,033 INFO L495 AbstractCegarLoop]: Abstraction has 68253 states and 203875 transitions. [2023-11-24 23:51:31,033 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 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 23:51:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 68253 states and 203875 transitions. [2023-11-24 23:51:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-24 23:51:31,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:31,036 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] [2023-11-24 23:51:31,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:51:31,036 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:31,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:31,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1796632034, now seen corresponding path program 1 times [2023-11-24 23:51:31,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:31,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173542582] [2023-11-24 23:51:31,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:31,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:31,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:31,108 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 23:51:31,108 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:31,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173542582] [2023-11-24 23:51:31,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173542582] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:31,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:31,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:31,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943581372] [2023-11-24 23:51:31,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:31,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:31,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:31,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:31,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:31,112 INFO L87 Difference]: Start difference. First operand 68253 states and 203875 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 23:51:31,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:31,944 INFO L93 Difference]: Finished difference Result 110109 states and 325138 transitions. [2023-11-24 23:51:31,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:31,945 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 34 [2023-11-24 23:51:31,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:33,290 INFO L225 Difference]: With dead ends: 110109 [2023-11-24 23:51:33,290 INFO L226 Difference]: Without dead ends: 110109 [2023-11-24 23:51:33,290 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 23:51:33,292 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 183 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:33,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 533 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:51:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110109 states. [2023-11-24 23:51:35,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110109 to 71073. [2023-11-24 23:51:35,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71073 states, 70801 states have (on average 2.9634468439711306) internal successors, (209815), 71072 states have internal predecessors, (209815), 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 23:51:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71073 states to 71073 states and 209815 transitions. [2023-11-24 23:51:36,269 INFO L78 Accepts]: Start accepts. Automaton has 71073 states and 209815 transitions. Word has length 34 [2023-11-24 23:51:36,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:36,269 INFO L495 AbstractCegarLoop]: Abstraction has 71073 states and 209815 transitions. [2023-11-24 23:51:36,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 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 23:51:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 71073 states and 209815 transitions. [2023-11-24 23:51:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-24 23:51:36,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:36,272 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] [2023-11-24 23:51:36,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 23:51:36,273 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:36,273 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:36,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1241951732, now seen corresponding path program 1 times [2023-11-24 23:51:36,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:36,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289731224] [2023-11-24 23:51:36,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:36,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:36,344 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 23:51:36,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:36,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289731224] [2023-11-24 23:51:36,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289731224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:36,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:36,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:51:36,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333135758] [2023-11-24 23:51:36,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:36,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:36,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:36,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:36,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:36,349 INFO L87 Difference]: Start difference. First operand 71073 states and 209815 transitions. Second operand has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 23:51:36,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:36,905 INFO L93 Difference]: Finished difference Result 72378 states and 213695 transitions. [2023-11-24 23:51:36,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:36,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 37 [2023-11-24 23:51:36,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:38,316 INFO L225 Difference]: With dead ends: 72378 [2023-11-24 23:51:38,316 INFO L226 Difference]: Without dead ends: 72378 [2023-11-24 23:51:38,317 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 23:51:38,336 INFO L413 NwaCegarLoop]: 315 mSDtfsCounter, 102 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:38,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 520 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-24 23:51:38,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72378 states. [2023-11-24 23:51:40,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72378 to 71676. [2023-11-24 23:51:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71676 states, 71410 states have (on average 2.9635905335387203) internal successors, (211630), 71675 states have internal predecessors, (211630), 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 23:51:41,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71676 states to 71676 states and 211630 transitions. [2023-11-24 23:51:41,183 INFO L78 Accepts]: Start accepts. Automaton has 71676 states and 211630 transitions. Word has length 37 [2023-11-24 23:51:41,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:51:41,183 INFO L495 AbstractCegarLoop]: Abstraction has 71676 states and 211630 transitions. [2023-11-24 23:51:41,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.5) internal successors, (37), 3 states have internal predecessors, (37), 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 23:51:41,184 INFO L276 IsEmpty]: Start isEmpty. Operand 71676 states and 211630 transitions. [2023-11-24 23:51:41,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-24 23:51:41,188 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:51:41,188 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:51:41,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 23:51:41,189 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err11ASSERT_VIOLATIONDATA_RACE, thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err12ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2023-11-24 23:51:41,190 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:51:41,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1737313568, now seen corresponding path program 1 times [2023-11-24 23:51:41,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:51:41,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586500353] [2023-11-24 23:51:41,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:51:41,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:51:41,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:51:41,285 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 23:51:41,286 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:51:41,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586500353] [2023-11-24 23:51:41,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586500353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:51:41,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:51:41,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:51:41,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274545085] [2023-11-24 23:51:41,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:51:41,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:51:41,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:51:41,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:51:41,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:51:41,292 INFO L87 Difference]: Start difference. First operand 71676 states and 211630 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-24 23:51:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:51:41,916 INFO L93 Difference]: Finished difference Result 93561 states and 273828 transitions. [2023-11-24 23:51:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:51:41,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-11-24 23:51:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:51:42,327 INFO L225 Difference]: With dead ends: 93561 [2023-11-24 23:51:42,327 INFO L226 Difference]: Without dead ends: 93561 [2023-11-24 23:51:42,327 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 23:51:42,328 INFO L413 NwaCegarLoop]: 321 mSDtfsCounter, 172 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:51:42,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 509 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]