./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-4.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_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/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_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/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_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/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 981efc79b98be1af19a50b7730f942b742f0093baf5909570150cbe7e4c78c16 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-25 00:05:27,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-25 00:05:27,275 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-11-25 00:05:27,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-25 00:05:27,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-25 00:05:27,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-25 00:05:27,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-25 00:05:27,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-25 00:05:27,310 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-25 00:05:27,311 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-25 00:05:27,312 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-25 00:05:27,312 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-25 00:05:27,313 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-25 00:05:27,314 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-25 00:05:27,314 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-25 00:05:27,315 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-25 00:05:27,316 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-25 00:05:27,316 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-25 00:05:27,317 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-25 00:05:27,318 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-25 00:05:27,318 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-25 00:05:27,323 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-25 00:05:27,324 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-25 00:05:27,324 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-25 00:05:27,325 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-25 00:05:27,325 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-25 00:05:27,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-25 00:05:27,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-25 00:05:27,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-25 00:05:27,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-25 00:05:27,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-25 00:05:27,329 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-25 00:05:27,329 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-25 00:05:27,330 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-25 00:05:27,330 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-25 00:05:27,331 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-25 00:05:27,331 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-25 00:05:27,332 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-25 00:05:27,333 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:27,333 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-25 00:05:27,334 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-25 00:05:27,343 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-25 00:05:27,344 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-25 00:05:27,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-25 00:05:27,345 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-25 00:05:27,345 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-25 00:05:27,346 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-25 00:05:27,346 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-25 00:05:27,347 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_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 981efc79b98be1af19a50b7730f942b742f0093baf5909570150cbe7e4c78c16 [2023-11-25 00:05:27,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-25 00:05:27,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-25 00:05:27,722 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-25 00:05:27,724 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-25 00:05:27,724 INFO L274 PluginConnector]: CDTParser initialized [2023-11-25 00:05:27,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-4.i [2023-11-25 00:05:30,848 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-25 00:05:31,181 INFO L384 CDTParser]: Found 1 translation units. [2023-11-25 00:05:31,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race-4.i [2023-11-25 00:05:31,199 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/data/d46dc0ffc/71e9e2294b0e44fd80e28e104bb51075/FLAG16dc74e6b [2023-11-25 00:05:31,213 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/data/d46dc0ffc/71e9e2294b0e44fd80e28e104bb51075 [2023-11-25 00:05:31,216 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-25 00:05:31,217 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-25 00:05:31,219 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:31,219 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-25 00:05:31,225 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-25 00:05:31,225 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,227 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a923e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31, skipping insertion in model container [2023-11-25 00:05:31,227 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,297 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-25 00:05:31,656 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:31,674 INFO L202 MainTranslator]: Completed pre-run [2023-11-25 00:05:31,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-25 00:05:31,813 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-11-25 00:05:31,821 INFO L206 MainTranslator]: Completed translation [2023-11-25 00:05:31,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31 WrapperNode [2023-11-25 00:05:31,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-25 00:05:31,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:31,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-25 00:05:31,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-25 00:05:31,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,855 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,884 INFO L138 Inliner]: procedures = 160, calls = 58, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 127 [2023-11-25 00:05:31,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-25 00:05:31,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-25 00:05:31,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-25 00:05:31,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-25 00:05:31,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,907 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,908 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,929 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-25 00:05:31,930 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-25 00:05:31,930 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-25 00:05:31,930 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-25 00:05:31,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (1/1) ... [2023-11-25 00:05:31,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-25 00:05:31,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-25 00:05:31,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-25 00:05:32,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54cc0956-1973-4a5b-9ba1-4d54cd3bc411/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-25 00:05:32,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-25 00:05:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-25 00:05:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-25 00:05:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-25 00:05:32,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-25 00:05:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-25 00:05:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-11-25 00:05:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-25 00:05:32,027 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-11-25 00:05:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-11-25 00:05:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-25 00:05:32,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-25 00:05:32,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-25 00:05:32,030 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-25 00:05:32,188 INFO L241 CfgBuilder]: Building ICFG [2023-11-25 00:05:32,190 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-25 00:05:32,619 INFO L282 CfgBuilder]: Performing block encoding [2023-11-25 00:05:32,709 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-25 00:05:32,710 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-25 00:05:32,712 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:32 BoogieIcfgContainer [2023-11-25 00:05:32,712 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-25 00:05:32,716 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-25 00:05:32,717 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-25 00:05:32,721 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-25 00:05:32,722 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 12:05:31" (1/3) ... [2023-11-25 00:05:32,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f74d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:32, skipping insertion in model container [2023-11-25 00:05:32,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 12:05:31" (2/3) ... [2023-11-25 00:05:32,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59f74d30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 12:05:32, skipping insertion in model container [2023-11-25 00:05:32,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 12:05:32" (3/3) ... [2023-11-25 00:05:32,727 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race-4.i [2023-11-25 00:05:32,736 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-25 00:05:32,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-25 00:05:32,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-11-25 00:05:32,746 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-25 00:05:32,817 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-25 00:05:32,855 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 179 places, 184 transitions, 372 flow [2023-11-25 00:05:33,053 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3942 states, 3890 states have (on average 2.0796915167095116) internal successors, (8090), 3941 states have internal predecessors, (8090), 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) [2023-11-25 00:05:33,074 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:05:33,081 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;@73be5e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:05:33,082 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-11-25 00:05:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 3942 states, 3890 states have (on average 2.0796915167095116) internal successors, (8090), 3941 states have internal predecessors, (8090), 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) [2023-11-25 00:05:33,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-25 00:05:33,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:33,104 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] [2023-11-25 00:05:33,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:33,111 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:33,111 INFO L85 PathProgramCache]: Analyzing trace with hash -855807379, now seen corresponding path program 1 times [2023-11-25 00:05:33,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:33,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469950893] [2023-11-25 00:05:33,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:33,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:33,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:33,456 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:33,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469950893] [2023-11-25 00:05:33,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469950893] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:33,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:33,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:33,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805306759] [2023-11-25 00:05:33,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:33,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:33,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:33,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:33,530 INFO L87 Difference]: Start difference. First operand has 3942 states, 3890 states have (on average 2.0796915167095116) internal successors, (8090), 3941 states have internal predecessors, (8090), 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 28.5) 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) [2023-11-25 00:05:33,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:33,856 INFO L93 Difference]: Finished difference Result 5357 states and 10710 transitions. [2023-11-25 00:05:33,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:33,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.5) 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 [2023-11-25 00:05:33,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:33,942 INFO L225 Difference]: With dead ends: 5357 [2023-11-25 00:05:33,942 INFO L226 Difference]: Without dead ends: 5356 [2023-11-25 00:05:33,944 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 [2023-11-25 00:05:33,951 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 116 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:33,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 347 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:33,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5356 states. [2023-11-25 00:05:34,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5356 to 3869. [2023-11-25 00:05:34,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3869 states, 3833 states have (on average 2.0073049830420038) internal successors, (7694), 3868 states have internal predecessors, (7694), 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) [2023-11-25 00:05:34,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3869 states to 3869 states and 7694 transitions. [2023-11-25 00:05:34,248 INFO L78 Accepts]: Start accepts. Automaton has 3869 states and 7694 transitions. Word has length 57 [2023-11-25 00:05:34,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:34,251 INFO L495 AbstractCegarLoop]: Abstraction has 3869 states and 7694 transitions. [2023-11-25 00:05:34,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) 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) [2023-11-25 00:05:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3869 states and 7694 transitions. [2023-11-25 00:05:34,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-25 00:05:34,258 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:34,258 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] [2023-11-25 00:05:34,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-25 00:05:34,259 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:34,260 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:34,260 INFO L85 PathProgramCache]: Analyzing trace with hash -613530947, now seen corresponding path program 1 times [2023-11-25 00:05:34,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:34,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642746490] [2023-11-25 00:05:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:34,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:35,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:35,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642746490] [2023-11-25 00:05:35,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642746490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:35,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:35,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:05:35,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357807038] [2023-11-25 00:05:35,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:35,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:05:35,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:35,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:05:35,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:05:35,149 INFO L87 Difference]: Start difference. First operand 3869 states and 7694 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2023-11-25 00:05:35,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:35,414 INFO L93 Difference]: Finished difference Result 3814 states and 7584 transitions. [2023-11-25 00:05:35,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:05:35,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2023-11-25 00:05:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:35,442 INFO L225 Difference]: With dead ends: 3814 [2023-11-25 00:05:35,442 INFO L226 Difference]: Without dead ends: 3814 [2023-11-25 00:05:35,447 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 [2023-11-25 00:05:35,449 INFO L413 NwaCegarLoop]: 329 mSDtfsCounter, 229 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:35,451 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 822 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:05:35,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3814 states. [2023-11-25 00:05:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3814 to 3814. [2023-11-25 00:05:35,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3814 states, 3783 states have (on average 2.0047581284694687) internal successors, (7584), 3813 states have internal predecessors, (7584), 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) [2023-11-25 00:05:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 7584 transitions. [2023-11-25 00:05:35,615 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 7584 transitions. Word has length 65 [2023-11-25 00:05:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:35,616 INFO L495 AbstractCegarLoop]: Abstraction has 3814 states and 7584 transitions. [2023-11-25 00:05:35,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2023-11-25 00:05:35,616 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 7584 transitions. [2023-11-25 00:05:35,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-25 00:05:35,619 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:35,619 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] [2023-11-25 00:05:35,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-25 00:05:35,620 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:35,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:35,620 INFO L85 PathProgramCache]: Analyzing trace with hash -346708242, now seen corresponding path program 1 times [2023-11-25 00:05:35,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:35,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215122659] [2023-11-25 00:05:35,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:35,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:35,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:35,691 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:35,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215122659] [2023-11-25 00:05:35,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215122659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:35,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:35,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:35,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919960231] [2023-11-25 00:05:35,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:35,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:35,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:35,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:35,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:35,695 INFO L87 Difference]: Start difference. First operand 3814 states and 7584 transitions. Second operand has 3 states, 2 states have (on average 33.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-11-25 00:05:35,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:35,809 INFO L93 Difference]: Finished difference Result 3872 states and 7701 transitions. [2023-11-25 00:05:35,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:35,810 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 33.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2023-11-25 00:05:35,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:35,838 INFO L225 Difference]: With dead ends: 3872 [2023-11-25 00:05:35,839 INFO L226 Difference]: Without dead ends: 3872 [2023-11-25 00:05:35,839 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 [2023-11-25 00:05:35,840 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 55 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:35,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 340 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:35,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3872 states. [2023-11-25 00:05:35,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3872 to 3834. [2023-11-25 00:05:35,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3834 states, 3805 states have (on average 2.0039421813403417) internal successors, (7625), 3833 states have internal predecessors, (7625), 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) [2023-11-25 00:05:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 7625 transitions. [2023-11-25 00:05:35,969 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 7625 transitions. Word has length 66 [2023-11-25 00:05:35,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:35,969 INFO L495 AbstractCegarLoop]: Abstraction has 3834 states and 7625 transitions. [2023-11-25 00:05:35,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 33.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2023-11-25 00:05:35,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 7625 transitions. [2023-11-25 00:05:35,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-25 00:05:35,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:35,972 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:35,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-25 00:05:35,972 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:35,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:35,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1247565341, now seen corresponding path program 1 times [2023-11-25 00:05:35,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:35,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176235482] [2023-11-25 00:05:35,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:35,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:36,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:36,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176235482] [2023-11-25 00:05:36,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176235482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:36,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:36,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:36,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582389182] [2023-11-25 00:05:36,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:36,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:36,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:36,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:36,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:36,021 INFO L87 Difference]: Start difference. First operand 3834 states and 7625 transitions. Second operand has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:05:36,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:36,157 INFO L93 Difference]: Finished difference Result 3912 states and 7784 transitions. [2023-11-25 00:05:36,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:36,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2023-11-25 00:05:36,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:36,183 INFO L225 Difference]: With dead ends: 3912 [2023-11-25 00:05:36,183 INFO L226 Difference]: Without dead ends: 3912 [2023-11-25 00:05:36,184 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 [2023-11-25 00:05:36,185 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 67 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:36,185 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 340 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:36,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2023-11-25 00:05:36,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3838. [2023-11-25 00:05:36,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3838 states, 3812 states have (on average 2.002623294858342) internal successors, (7634), 3837 states have internal predecessors, (7634), 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) [2023-11-25 00:05:36,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3838 states to 3838 states and 7634 transitions. [2023-11-25 00:05:36,306 INFO L78 Accepts]: Start accepts. Automaton has 3838 states and 7634 transitions. Word has length 67 [2023-11-25 00:05:36,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:36,306 INFO L495 AbstractCegarLoop]: Abstraction has 3838 states and 7634 transitions. [2023-11-25 00:05:36,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 33.5) internal successors, (67), 3 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-25 00:05:36,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3838 states and 7634 transitions. [2023-11-25 00:05:36,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-25 00:05:36,309 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:36,309 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, 1] [2023-11-25 00:05:36,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-25 00:05:36,310 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:36,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:36,310 INFO L85 PathProgramCache]: Analyzing trace with hash 2088294377, now seen corresponding path program 1 times [2023-11-25 00:05:36,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:36,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537945163] [2023-11-25 00:05:36,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:36,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:36,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:36,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:36,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537945163] [2023-11-25 00:05:36,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537945163] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:36,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:36,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:36,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816772436] [2023-11-25 00:05:36,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:36,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:36,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:36,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:36,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:36,364 INFO L87 Difference]: Start difference. First operand 3838 states and 7634 transitions. Second operand has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-11-25 00:05:36,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:36,465 INFO L93 Difference]: Finished difference Result 4672 states and 9300 transitions. [2023-11-25 00:05:36,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:36,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2023-11-25 00:05:36,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:36,497 INFO L225 Difference]: With dead ends: 4672 [2023-11-25 00:05:36,497 INFO L226 Difference]: Without dead ends: 4672 [2023-11-25 00:05:36,497 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 [2023-11-25 00:05:36,498 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 103 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:36,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 357 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2023-11-25 00:05:36,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 3813. [2023-11-25 00:05:36,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3813 states, 3791 states have (on average 2.0002637826431022) internal successors, (7583), 3812 states have internal predecessors, (7583), 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) [2023-11-25 00:05:36,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3813 states to 3813 states and 7583 transitions. [2023-11-25 00:05:36,668 INFO L78 Accepts]: Start accepts. Automaton has 3813 states and 7583 transitions. Word has length 75 [2023-11-25 00:05:36,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:36,669 INFO L495 AbstractCegarLoop]: Abstraction has 3813 states and 7583 transitions. [2023-11-25 00:05:36,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.5) internal successors, (75), 3 states have internal predecessors, (75), 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) [2023-11-25 00:05:36,670 INFO L276 IsEmpty]: Start isEmpty. Operand 3813 states and 7583 transitions. [2023-11-25 00:05:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-11-25 00:05:36,672 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:36,673 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, 1, 1, 1, 1] [2023-11-25 00:05:36,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-25 00:05:36,676 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:36,677 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:36,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1306194162, now seen corresponding path program 1 times [2023-11-25 00:05:36,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:36,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549812764] [2023-11-25 00:05:36,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:36,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:36,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:36,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549812764] [2023-11-25 00:05:36,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549812764] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:36,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:36,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:36,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197546033] [2023-11-25 00:05:36,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:36,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:36,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:36,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:36,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:36,758 INFO L87 Difference]: Start difference. First operand 3813 states and 7583 transitions. Second operand has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2023-11-25 00:05:36,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:36,852 INFO L93 Difference]: Finished difference Result 3984 states and 7889 transitions. [2023-11-25 00:05:36,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:36,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2023-11-25 00:05:36,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:36,870 INFO L225 Difference]: With dead ends: 3984 [2023-11-25 00:05:36,870 INFO L226 Difference]: Without dead ends: 3746 [2023-11-25 00:05:36,871 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 [2023-11-25 00:05:36,872 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 59 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:36,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 344 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-25 00:05:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3746 states. [2023-11-25 00:05:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3746 to 3591. [2023-11-25 00:05:36,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3591 states, 3572 states have (on average 1.997760358342665) internal successors, (7136), 3590 states have internal predecessors, (7136), 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) [2023-11-25 00:05:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 7136 transitions. [2023-11-25 00:05:36,979 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 7136 transitions. Word has length 78 [2023-11-25 00:05:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:05:36,979 INFO L495 AbstractCegarLoop]: Abstraction has 3591 states and 7136 transitions. [2023-11-25 00:05:36,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 39.0) internal successors, (78), 3 states have internal predecessors, (78), 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) [2023-11-25 00:05:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 7136 transitions. [2023-11-25 00:05:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-25 00:05:36,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:36,982 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:36,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-25 00:05:36,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-11-25 00:05:36,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:36,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1886798631, now seen corresponding path program 1 times [2023-11-25 00:05:36,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:36,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774966587] [2023-11-25 00:05:36,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:36,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:05:37,010 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-25 00:05:37,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-25 00:05:37,057 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-25 00:05:37,057 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-25 00:05:37,058 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-11-25 00:05:37,060 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-11-25 00:05:37,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-11-25 00:05:37,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-11-25 00:05:37,061 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-11-25 00:05:37,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-11-25 00:05:37,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-11-25 00:05:37,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-11-25 00:05:37,062 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-11-25 00:05:37,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-11-25 00:05:37,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-11-25 00:05:37,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-11-25 00:05:37,063 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-11-25 00:05:37,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-11-25 00:05:37,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-11-25 00:05:37,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-11-25 00:05:37,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-11-25 00:05:37,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-11-25 00:05:37,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-25 00:05:37,068 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-25 00:05:37,070 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-25 00:05:37,071 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-25 00:05:37,109 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-25 00:05:37,114 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 238 places, 243 transitions, 496 flow [2023-11-25 00:05:43,816 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 224637 states, 224250 states have (on average 3.081542920847269) internal successors, (691036), 224636 states have internal predecessors, (691036), 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) [2023-11-25 00:05:43,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-25 00:05:43,819 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;@73be5e5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-25 00:05:43,819 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-25 00:05:44,173 INFO L276 IsEmpty]: Start isEmpty. Operand has 224637 states, 224250 states have (on average 3.081542920847269) internal successors, (691036), 224636 states have internal predecessors, (691036), 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) [2023-11-25 00:05:44,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-25 00:05:44,174 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:05:44,175 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] [2023-11-25 00:05:44,175 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-25 00:05:44,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:05:44,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1115543776, now seen corresponding path program 1 times [2023-11-25 00:05:44,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:05:44,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729135127] [2023-11-25 00:05:44,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:05:44,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:05:44,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:05:44,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:05:44,210 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:05:44,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729135127] [2023-11-25 00:05:44,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729135127] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:05:44,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:05:44,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-25 00:05:44,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829394192] [2023-11-25 00:05:44,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:05:44,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-25 00:05:44,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:05:44,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-25 00:05:44,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-25 00:05:45,029 INFO L87 Difference]: Start difference. First operand has 224637 states, 224250 states have (on average 3.081542920847269) internal successors, (691036), 224636 states have internal predecessors, (691036), 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 28.5) 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) [2023-11-25 00:05:49,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:05:49,798 INFO L93 Difference]: Finished difference Result 360600 states and 1073590 transitions. [2023-11-25 00:05:49,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-25 00:05:49,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 28.5) 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 [2023-11-25 00:05:49,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:05:52,558 INFO L225 Difference]: With dead ends: 360600 [2023-11-25 00:05:52,559 INFO L226 Difference]: Without dead ends: 360599 [2023-11-25 00:05:52,559 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 [2023-11-25 00:05:52,560 INFO L413 NwaCegarLoop]: 291 mSDtfsCounter, 168 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-25 00:05:52,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 466 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-25 00:05:53,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360599 states. [2023-11-25 00:06:01,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360599 to 238820. [2023-11-25 00:06:02,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238820 states, 238475 states have (on average 2.994301289443338) internal successors, (714066), 238819 states have internal predecessors, (714066), 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) [2023-11-25 00:06:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238820 states to 238820 states and 714066 transitions. [2023-11-25 00:06:04,058 INFO L78 Accepts]: Start accepts. Automaton has 238820 states and 714066 transitions. Word has length 57 [2023-11-25 00:06:04,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-25 00:06:04,063 INFO L495 AbstractCegarLoop]: Abstraction has 238820 states and 714066 transitions. [2023-11-25 00:06:04,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 28.5) 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) [2023-11-25 00:06:04,063 INFO L276 IsEmpty]: Start isEmpty. Operand 238820 states and 714066 transitions. [2023-11-25 00:06:04,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-25 00:06:04,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-25 00:06:04,065 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] [2023-11-25 00:06:04,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-25 00:06:04,068 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-11-25 00:06:04,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-25 00:06:04,069 INFO L85 PathProgramCache]: Analyzing trace with hash -391930390, now seen corresponding path program 1 times [2023-11-25 00:06:04,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-25 00:06:04,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64027690] [2023-11-25 00:06:04,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-25 00:06:04,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-25 00:06:04,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-25 00:06:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-25 00:06:04,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-25 00:06:04,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64027690] [2023-11-25 00:06:04,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64027690] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-25 00:06:04,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-25 00:06:04,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-25 00:06:04,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546899630] [2023-11-25 00:06:04,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-25 00:06:04,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-25 00:06:04,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-25 00:06:04,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-25 00:06:04,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-25 00:06:04,687 INFO L87 Difference]: Start difference. First operand 238820 states and 714066 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2023-11-25 00:06:07,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-25 00:06:07,550 INFO L93 Difference]: Finished difference Result 235388 states and 703841 transitions. [2023-11-25 00:06:07,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-25 00:06:07,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 65 [2023-11-25 00:06:07,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-25 00:06:09,330 INFO L225 Difference]: With dead ends: 235388 [2023-11-25 00:06:09,330 INFO L226 Difference]: Without dead ends: 235388 [2023-11-25 00:06:09,330 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 [2023-11-25 00:06:09,331 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 465 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-25 00:06:09,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1593 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-25 00:06:09,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235388 states.