./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.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_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh --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 490e43bb8ca19cea87b27390f3d2ab0cf6fc9da6355c682d1c6272a9c3d813c1 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 15:36:43,009 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 15:36:43,077 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-DataRace-32bit-Taipan_Default.epf [2023-12-02 15:36:43,081 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 15:36:43,082 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 15:36:43,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 15:36:43,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 15:36:43,108 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 15:36:43,109 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 15:36:43,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 15:36:43,110 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 15:36:43,110 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 15:36:43,111 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 15:36:43,111 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 15:36:43,112 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 15:36:43,112 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 15:36:43,113 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 15:36:43,113 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 15:36:43,114 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 15:36:43,114 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 15:36:43,115 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 15:36:43,116 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 15:36:43,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 15:36:43,117 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 15:36:43,118 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 15:36:43,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 15:36:43,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 15:36:43,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 15:36:43,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 15:36:43,120 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 15:36:43,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 15:36:43,120 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-12-02 15:36:43,121 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 15:36:43,121 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 15:36:43,121 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 15:36:43,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 15:36:43,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 15:36:43,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 15:36:43,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:36:43,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 15:36:43,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 15:36:43,123 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 15:36:43,123 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 15:36:43,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 15:36:43,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 15:36:43,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 15:36:43,123 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 15:36:43,124 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 15:36:43,124 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_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 490e43bb8ca19cea87b27390f3d2ab0cf6fc9da6355c682d1c6272a9c3d813c1 [2023-12-02 15:36:43,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 15:36:43,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 15:36:43,375 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 15:36:43,377 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 15:36:43,377 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 15:36:43,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i [2023-12-02 15:36:46,172 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 15:36:46,412 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 15:36:46,412 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/sv-benchmarks/c/pthread-race-challenges/thread-join-counter-inner-race.i [2023-12-02 15:36:46,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/data/31e256bd9/5cd672789814460997c7025926508629/FLAG61455ba23 [2023-12-02 15:36:46,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/data/31e256bd9/5cd672789814460997c7025926508629 [2023-12-02 15:36:46,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 15:36:46,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 15:36:46,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 15:36:46,449 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 15:36:46,454 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 15:36:46,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1580f839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46, skipping insertion in model container [2023-12-02 15:36:46,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,506 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 15:36:46,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:36:46,832 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 15:36:46,876 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 15:36:46,909 WARN L675 CHandler]: The function pthread_detach is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 15:36:46,917 INFO L206 MainTranslator]: Completed translation [2023-12-02 15:36:46,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46 WrapperNode [2023-12-02 15:36:46,917 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 15:36:46,918 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 15:36:46,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 15:36:46,919 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 15:36:46,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,961 INFO L138 Inliner]: procedures = 160, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2023-12-02 15:36:46,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 15:36:46,963 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 15:36:46,963 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 15:36:46,963 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 15:36:46,972 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,984 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,991 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:46,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 15:36:46,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 15:36:46,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 15:36:46,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 15:36:46,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (1/1) ... [2023-12-02 15:36:47,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 15:36:47,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 15:36:47,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 15:36:47,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 15:36:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 15:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 15:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-12-02 15:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 15:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 15:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 15:36:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure pthread_detach [2023-12-02 15:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 15:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2023-12-02 15:36:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2023-12-02 15:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-12-02 15:36:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 15:36:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 15:36:47,059 WARN L213 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-12-02 15:36:47,186 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 15:36:47,188 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 15:36:47,405 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 15:36:47,433 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 15:36:47,434 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-12-02 15:36:47,435 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:36:47 BoogieIcfgContainer [2023-12-02 15:36:47,436 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 15:36:47,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 15:36:47,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 15:36:47,442 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 15:36:47,442 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:36:46" (1/3) ... [2023-12-02 15:36:47,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a2cca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:36:47, skipping insertion in model container [2023-12-02 15:36:47,443 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:36:46" (2/3) ... [2023-12-02 15:36:47,443 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30a2cca2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:36:47, skipping insertion in model container [2023-12-02 15:36:47,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:36:47" (3/3) ... [2023-12-02 15:36:47,461 INFO L112 eAbstractionObserver]: Analyzing ICFG thread-join-counter-inner-race.i [2023-12-02 15:36:47,468 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-12-02 15:36:47,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 15:36:47,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2023-12-02 15:36:47,475 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-12-02 15:36:47,531 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:36:47,559 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 138 places, 143 transitions, 290 flow [2023-12-02 15:36:47,672 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2688 states, 2636 states have (on average 2.1157056145675264) internal successors, (5577), 2687 states have internal predecessors, (5577), 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) [2023-12-02 15:36:47,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:36:47,697 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;@45cac572, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:36:47,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2023-12-02 15:36:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 2688 states, 2636 states have (on average 2.1157056145675264) internal successors, (5577), 2687 states have internal predecessors, (5577), 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) [2023-12-02 15:36:47,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 15:36:47,715 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:47,715 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] [2023-12-02 15:36:47,716 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)] === [2023-12-02 15:36:47,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:47,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1740679426, now seen corresponding path program 1 times [2023-12-02 15:36:47,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:47,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238055434] [2023-12-02 15:36:47,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:47,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:47,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:47,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:47,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238055434] [2023-12-02 15:36:47,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238055434] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:47,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:47,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:36:47,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306516902] [2023-12-02 15:36:47,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:47,966 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:36:47,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:47,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:36:47,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:36:48,007 INFO L87 Difference]: Start difference. First operand has 2688 states, 2636 states have (on average 2.1157056145675264) internal successors, (5577), 2687 states have internal predecessors, (5577), 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 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-12-02 15:36:48,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:48,151 INFO L93 Difference]: Finished difference Result 3434 states and 6886 transitions. [2023-12-02 15:36:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:36:48,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-12-02 15:36:48,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:48,197 INFO L225 Difference]: With dead ends: 3434 [2023-12-02 15:36:48,197 INFO L226 Difference]: Without dead ends: 3433 [2023-12-02 15:36:48,199 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 [2023-12-02 15:36:48,203 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 94 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:48,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 284 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:36:48,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3433 states. [2023-12-02 15:36:48,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3433 to 2641. [2023-12-02 15:36:48,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2641 states, 2605 states have (on average 2.021113243761996) internal successors, (5265), 2640 states have internal predecessors, (5265), 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) [2023-12-02 15:36:48,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 5265 transitions. [2023-12-02 15:36:48,381 INFO L78 Accepts]: Start accepts. Automaton has 2641 states and 5265 transitions. Word has length 36 [2023-12-02 15:36:48,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:36:48,382 INFO L495 AbstractCegarLoop]: Abstraction has 2641 states and 5265 transitions. [2023-12-02 15:36:48,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-12-02 15:36:48,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2641 states and 5265 transitions. [2023-12-02 15:36:48,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 15:36:48,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:48,384 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] [2023-12-02 15:36:48,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 15:36:48,385 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 15:36:48,385 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:48,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1200060822, now seen corresponding path program 1 times [2023-12-02 15:36:48,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:48,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607068194] [2023-12-02 15:36:48,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:48,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:48,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:48,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:48,482 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:48,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607068194] [2023-12-02 15:36:48,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607068194] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:48,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:48,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:36:48,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792275358] [2023-12-02 15:36:48,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:48,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:36:48,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:48,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:36:48,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:36:48,487 INFO L87 Difference]: Start difference. First operand 2641 states and 5265 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 15:36:48,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:48,564 INFO L93 Difference]: Finished difference Result 2699 states and 5382 transitions. [2023-12-02 15:36:48,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:36:48,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-12-02 15:36:48,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:48,585 INFO L225 Difference]: With dead ends: 2699 [2023-12-02 15:36:48,585 INFO L226 Difference]: Without dead ends: 2699 [2023-12-02 15:36:48,586 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 [2023-12-02 15:36:48,587 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 49 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:48,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 282 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:36:48,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2023-12-02 15:36:48,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2663. [2023-12-02 15:36:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2663 states, 2629 states have (on average 2.01977938379612) internal successors, (5310), 2662 states have internal predecessors, (5310), 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) [2023-12-02 15:36:48,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2663 states to 2663 states and 5310 transitions. [2023-12-02 15:36:48,683 INFO L78 Accepts]: Start accepts. Automaton has 2663 states and 5310 transitions. Word has length 43 [2023-12-02 15:36:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:36:48,683 INFO L495 AbstractCegarLoop]: Abstraction has 2663 states and 5310 transitions. [2023-12-02 15:36:48,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 15:36:48,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2663 states and 5310 transitions. [2023-12-02 15:36:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 15:36:48,686 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:48,686 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] [2023-12-02 15:36:48,686 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 15:36:48,686 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 15:36:48,687 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:48,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1486552792, now seen corresponding path program 1 times [2023-12-02 15:36:48,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:48,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125087612] [2023-12-02 15:36:48,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:48,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:48,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:48,794 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:48,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125087612] [2023-12-02 15:36:48,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125087612] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:48,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:48,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:36:48,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850070346] [2023-12-02 15:36:48,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:48,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:36:48,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:48,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:36:48,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:36:48,797 INFO L87 Difference]: Start difference. First operand 2663 states and 5310 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 15:36:48,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:48,863 INFO L93 Difference]: Finished difference Result 2700 states and 5387 transitions. [2023-12-02 15:36:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:36:48,864 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2023-12-02 15:36:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:48,878 INFO L225 Difference]: With dead ends: 2700 [2023-12-02 15:36:48,879 INFO L226 Difference]: Without dead ends: 2700 [2023-12-02 15:36:48,879 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 [2023-12-02 15:36:48,880 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 52 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:48,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 277 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:36:48,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2023-12-02 15:36:48,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2654. [2023-12-02 15:36:48,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2654 states, 2624 states have (on average 2.0171493902439024) internal successors, (5293), 2653 states have internal predecessors, (5293), 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) [2023-12-02 15:36:48,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 5293 transitions. [2023-12-02 15:36:48,944 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 5293 transitions. Word has length 46 [2023-12-02 15:36:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:36:48,944 INFO L495 AbstractCegarLoop]: Abstraction has 2654 states and 5293 transitions. [2023-12-02 15:36:48,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 15:36:48,945 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 5293 transitions. [2023-12-02 15:36:48,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 15:36:48,946 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:48,947 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] [2023-12-02 15:36:48,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 15:36:48,947 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 15:36:48,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:48,948 INFO L85 PathProgramCache]: Analyzing trace with hash -56506829, now seen corresponding path program 1 times [2023-12-02 15:36:48,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:48,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061139301] [2023-12-02 15:36:48,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:48,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:49,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:49,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:49,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061139301] [2023-12-02 15:36:49,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061139301] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:49,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:49,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:36:49,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158009433] [2023-12-02 15:36:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:49,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:36:49,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:49,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:36:49,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:36:49,433 INFO L87 Difference]: Start difference. First operand 2654 states and 5293 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-12-02 15:36:49,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:49,560 INFO L93 Difference]: Finished difference Result 2606 states and 5197 transitions. [2023-12-02 15:36:49,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:36:49,561 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2023-12-02 15:36:49,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:49,578 INFO L225 Difference]: With dead ends: 2606 [2023-12-02 15:36:49,578 INFO L226 Difference]: Without dead ends: 2606 [2023-12-02 15:36:49,578 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 [2023-12-02 15:36:49,580 INFO L413 NwaCegarLoop]: 288 mSDtfsCounter, 219 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:49,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 624 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:36:49,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2606 states. [2023-12-02 15:36:49,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2606 to 2606. [2023-12-02 15:36:49,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2606 states, 2580 states have (on average 2.014341085271318) internal successors, (5197), 2605 states have internal predecessors, (5197), 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) [2023-12-02 15:36:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2606 states to 2606 states and 5197 transitions. [2023-12-02 15:36:49,670 INFO L78 Accepts]: Start accepts. Automaton has 2606 states and 5197 transitions. Word has length 46 [2023-12-02 15:36:49,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:36:49,671 INFO L495 AbstractCegarLoop]: Abstraction has 2606 states and 5197 transitions. [2023-12-02 15:36:49,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-12-02 15:36:49,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2606 states and 5197 transitions. [2023-12-02 15:36:49,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 15:36:49,673 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:49,673 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] [2023-12-02 15:36:49,673 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 15:36:49,674 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 15:36:49,674 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:49,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1364397713, now seen corresponding path program 1 times [2023-12-02 15:36:49,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:49,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767426613] [2023-12-02 15:36:49,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:49,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:49,706 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:49,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767426613] [2023-12-02 15:36:49,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767426613] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:49,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:49,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:36:49,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066936653] [2023-12-02 15:36:49,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:49,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:36:49,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:49,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:36:49,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:36:49,709 INFO L87 Difference]: Start difference. First operand 2606 states and 5197 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-02 15:36:49,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:49,760 INFO L93 Difference]: Finished difference Result 2782 states and 5514 transitions. [2023-12-02 15:36:49,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:36:49,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-12-02 15:36:49,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:49,774 INFO L225 Difference]: With dead ends: 2782 [2023-12-02 15:36:49,774 INFO L226 Difference]: Without dead ends: 2674 [2023-12-02 15:36:49,775 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 [2023-12-02 15:36:49,776 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 53 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:49,776 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 284 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:36:49,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2674 states. [2023-12-02 15:36:49,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2674 to 2519. [2023-12-02 15:36:49,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 2495 states have (on average 2.0080160320641283) internal successors, (5010), 2518 states have internal predecessors, (5010), 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) [2023-12-02 15:36:49,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 5010 transitions. [2023-12-02 15:36:49,834 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 5010 transitions. Word has length 51 [2023-12-02 15:36:49,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:36:49,835 INFO L495 AbstractCegarLoop]: Abstraction has 2519 states and 5010 transitions. [2023-12-02 15:36:49,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-02 15:36:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 5010 transitions. [2023-12-02 15:36:49,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 15:36:49,836 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:49,836 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] [2023-12-02 15:36:49,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 15:36:49,837 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 15 more)] === [2023-12-02 15:36:49,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:49,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1347103635, now seen corresponding path program 1 times [2023-12-02 15:36:49,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:49,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954639879] [2023-12-02 15:36:49,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:49,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:49,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:49,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:49,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:49,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954639879] [2023-12-02 15:36:49,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954639879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:49,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:49,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:36:49,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825688828] [2023-12-02 15:36:49,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:49,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:36:49,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:49,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:36:49,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:36:49,878 INFO L87 Difference]: Start difference. First operand 2519 states and 5010 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-02 15:36:49,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:49,931 INFO L93 Difference]: Finished difference Result 2966 states and 5897 transitions. [2023-12-02 15:36:49,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:36:49,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2023-12-02 15:36:49,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:49,947 INFO L225 Difference]: With dead ends: 2966 [2023-12-02 15:36:49,947 INFO L226 Difference]: Without dead ends: 2966 [2023-12-02 15:36:49,947 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 [2023-12-02 15:36:49,948 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 85 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:49,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 291 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:36:49,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2023-12-02 15:36:50,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2491. [2023-12-02 15:36:50,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2491 states, 2472 states have (on average 2.003640776699029) internal successors, (4953), 2490 states have internal predecessors, (4953), 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) [2023-12-02 15:36:50,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2491 states to 2491 states and 4953 transitions. [2023-12-02 15:36:50,042 INFO L78 Accepts]: Start accepts. Automaton has 2491 states and 4953 transitions. Word has length 52 [2023-12-02 15:36:50,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:36:50,042 INFO L495 AbstractCegarLoop]: Abstraction has 2491 states and 4953 transitions. [2023-12-02 15:36:50,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-02 15:36:50,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2491 states and 4953 transitions. [2023-12-02 15:36:50,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 15:36:50,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:50,044 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] [2023-12-02 15:36:50,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 15:36:50,045 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)] === [2023-12-02 15:36:50,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash -816486187, now seen corresponding path program 1 times [2023-12-02 15:36:50,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:50,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14218291] [2023-12-02 15:36:50,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:50,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:36:50,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:36:50,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:36:50,120 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:36:50,120 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:36:50,121 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 18 remaining) [2023-12-02 15:36:50,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (16 of 18 remaining) [2023-12-02 15:36:50,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (15 of 18 remaining) [2023-12-02 15:36:50,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (14 of 18 remaining) [2023-12-02 15:36:50,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (13 of 18 remaining) [2023-12-02 15:36:50,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (12 of 18 remaining) [2023-12-02 15:36:50,124 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 18 remaining) [2023-12-02 15:36:50,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 18 remaining) [2023-12-02 15:36:50,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 18 remaining) [2023-12-02 15:36:50,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 18 remaining) [2023-12-02 15:36:50,125 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 18 remaining) [2023-12-02 15:36:50,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 18 remaining) [2023-12-02 15:36:50,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 18 remaining) [2023-12-02 15:36:50,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 18 remaining) [2023-12-02 15:36:50,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 18 remaining) [2023-12-02 15:36:50,126 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 18 remaining) [2023-12-02 15:36:50,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 18 remaining) [2023-12-02 15:36:50,127 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 18 remaining) [2023-12-02 15:36:50,127 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 15:36:50,131 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:36:50,133 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-12-02 15:36:50,133 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-12-02 15:36:50,174 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-12-02 15:36:50,180 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 191 places, 196 transitions, 402 flow [2023-12-02 15:36:53,258 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 137764 states, 137377 states have (on average 3.105425216739338) internal successors, (426614), 137763 states have internal predecessors, (426614), 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) [2023-12-02 15:36:53,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 15:36:53,260 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;@45cac572, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 15:36:53,260 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-12-02 15:36:53,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 137764 states, 137377 states have (on average 3.105425216739338) internal successors, (426614), 137763 states have internal predecessors, (426614), 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) [2023-12-02 15:36:53,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 15:36:53,450 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:36:53,450 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] [2023-12-02 15:36:53,450 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)] === [2023-12-02 15:36:53,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:36:53,450 INFO L85 PathProgramCache]: Analyzing trace with hash -399818238, now seen corresponding path program 1 times [2023-12-02 15:36:53,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:36:53,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794382393] [2023-12-02 15:36:53,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:36:53,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:36:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:36:53,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:36:53,474 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:36:53,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794382393] [2023-12-02 15:36:53,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794382393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:36:53,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:36:53,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:36:53,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388071432] [2023-12-02 15:36:53,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:36:53,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:36:53,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:36:53,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:36:53,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:36:53,623 INFO L87 Difference]: Start difference. First operand has 137764 states, 137377 states have (on average 3.105425216739338) internal successors, (426614), 137763 states have internal predecessors, (426614), 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 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-12-02 15:36:55,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:36:55,969 INFO L93 Difference]: Finished difference Result 215069 states and 640561 transitions. [2023-12-02 15:36:55,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:36:55,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2023-12-02 15:36:55,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:36:57,210 INFO L225 Difference]: With dead ends: 215069 [2023-12-02 15:36:57,210 INFO L226 Difference]: Without dead ends: 215068 [2023-12-02 15:36:57,211 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 [2023-12-02 15:36:57,212 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 140 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:36:57,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 397 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:36:57,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215068 states. [2023-12-02 15:37:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215068 to 148167. [2023-12-02 15:37:01,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148167 states, 147822 states have (on average 2.9954675217491307) internal successors, (442796), 148166 states have internal predecessors, (442796), 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) [2023-12-02 15:37:02,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148167 states to 148167 states and 442796 transitions. [2023-12-02 15:37:02,430 INFO L78 Accepts]: Start accepts. Automaton has 148167 states and 442796 transitions. Word has length 36 [2023-12-02 15:37:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:02,430 INFO L495 AbstractCegarLoop]: Abstraction has 148167 states and 442796 transitions. [2023-12-02 15:37:02,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-12-02 15:37:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 148167 states and 442796 transitions. [2023-12-02 15:37:02,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 15:37:02,431 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:02,431 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] [2023-12-02 15:37:02,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 15:37:02,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:02,432 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 981537966, now seen corresponding path program 1 times [2023-12-02 15:37:02,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:02,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60349685] [2023-12-02 15:37:02,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:02,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:02,459 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:02,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60349685] [2023-12-02 15:37:02,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60349685] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:02,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:02,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983964491] [2023-12-02 15:37:02,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:02,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:02,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:02,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:02,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:02,462 INFO L87 Difference]: Start difference. First operand 148167 states and 442796 transitions. Second operand has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 15:37:03,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:03,639 INFO L93 Difference]: Finished difference Result 153080 states and 457438 transitions. [2023-12-02 15:37:03,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:03,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2023-12-02 15:37:03,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:04,459 INFO L225 Difference]: With dead ends: 153080 [2023-12-02 15:37:04,459 INFO L226 Difference]: Without dead ends: 153080 [2023-12-02 15:37:04,459 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 [2023-12-02 15:37:04,460 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 101 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:04,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 418 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:04,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153080 states. [2023-12-02 15:37:08,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153080 to 150520. [2023-12-02 15:37:08,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150520 states, 150180 states have (on average 2.9951658010387536) internal successors, (449814), 150519 states have internal predecessors, (449814), 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) [2023-12-02 15:37:08,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150520 states to 150520 states and 449814 transitions. [2023-12-02 15:37:08,676 INFO L78 Accepts]: Start accepts. Automaton has 150520 states and 449814 transitions. Word has length 43 [2023-12-02 15:37:08,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:08,676 INFO L495 AbstractCegarLoop]: Abstraction has 150520 states and 449814 transitions. [2023-12-02 15:37:08,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 21.5) internal successors, (43), 3 states have internal predecessors, (43), 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) [2023-12-02 15:37:08,677 INFO L276 IsEmpty]: Start isEmpty. Operand 150520 states and 449814 transitions. [2023-12-02 15:37:08,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 15:37:08,677 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:08,678 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] [2023-12-02 15:37:08,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 15:37:08,678 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:08,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:08,678 INFO L85 PathProgramCache]: Analyzing trace with hash -420339492, now seen corresponding path program 1 times [2023-12-02 15:37:08,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:08,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912907825] [2023-12-02 15:37:08,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:08,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:08,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:08,705 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:08,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912907825] [2023-12-02 15:37:08,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912907825] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:08,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:08,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:08,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989472146] [2023-12-02 15:37:08,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:08,706 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:08,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:08,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:08,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:08,707 INFO L87 Difference]: Start difference. First operand 150520 states and 449814 transitions. Second operand has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 15:37:09,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:09,919 INFO L93 Difference]: Finished difference Result 158077 states and 472352 transitions. [2023-12-02 15:37:09,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:09,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2023-12-02 15:37:09,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:10,529 INFO L225 Difference]: With dead ends: 158077 [2023-12-02 15:37:10,529 INFO L226 Difference]: Without dead ends: 158077 [2023-12-02 15:37:10,529 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 [2023-12-02 15:37:10,530 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 101 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:10,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 393 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:11,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158077 states. [2023-12-02 15:37:14,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158077 to 152761. [2023-12-02 15:37:14,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152761 states, 152433 states have (on average 2.9946140271463526) internal successors, (456478), 152760 states have internal predecessors, (456478), 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) [2023-12-02 15:37:15,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152761 states to 152761 states and 456478 transitions. [2023-12-02 15:37:15,331 INFO L78 Accepts]: Start accepts. Automaton has 152761 states and 456478 transitions. Word has length 46 [2023-12-02 15:37:15,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:15,332 INFO L495 AbstractCegarLoop]: Abstraction has 152761 states and 456478 transitions. [2023-12-02 15:37:15,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 23.0) internal successors, (46), 3 states have internal predecessors, (46), 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) [2023-12-02 15:37:15,332 INFO L276 IsEmpty]: Start isEmpty. Operand 152761 states and 456478 transitions. [2023-12-02 15:37:15,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 15:37:15,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:15,333 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] [2023-12-02 15:37:15,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 15:37:15,334 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:15,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:15,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1009706471, now seen corresponding path program 1 times [2023-12-02 15:37:15,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:15,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021321196] [2023-12-02 15:37:15,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:15,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:15,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:15,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:15,661 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:15,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021321196] [2023-12-02 15:37:15,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021321196] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:15,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:15,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 15:37:15,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44535000] [2023-12-02 15:37:15,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:15,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 15:37:15,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:15,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 15:37:15,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-12-02 15:37:15,663 INFO L87 Difference]: Start difference. First operand 152761 states and 456478 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-12-02 15:37:16,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:16,582 INFO L93 Difference]: Finished difference Result 149957 states and 448134 transitions. [2023-12-02 15:37:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-02 15:37:16,583 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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 46 [2023-12-02 15:37:16,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:17,471 INFO L225 Difference]: With dead ends: 149957 [2023-12-02 15:37:17,471 INFO L226 Difference]: Without dead ends: 149957 [2023-12-02 15:37:17,471 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 [2023-12-02 15:37:17,472 INFO L413 NwaCegarLoop]: 527 mSDtfsCounter, 417 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:17,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 1433 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-02 15:37:17,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149957 states. [2023-12-02 15:37:20,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149957 to 149957. [2023-12-02 15:37:20,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149957 states, 149676 states have (on average 2.9940270985328308) internal successors, (448134), 149956 states have internal predecessors, (448134), 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) [2023-12-02 15:37:21,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149957 states to 149957 states and 448134 transitions. [2023-12-02 15:37:21,891 INFO L78 Accepts]: Start accepts. Automaton has 149957 states and 448134 transitions. Word has length 46 [2023-12-02 15:37:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:21,892 INFO L495 AbstractCegarLoop]: Abstraction has 149957 states and 448134 transitions. [2023-12-02 15:37:21,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 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) [2023-12-02 15:37:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 149957 states and 448134 transitions. [2023-12-02 15:37:21,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 15:37:21,907 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:21,907 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] [2023-12-02 15:37:21,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 15:37:21,908 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:21,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:21,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1656528307, now seen corresponding path program 1 times [2023-12-02 15:37:21,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:21,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040600799] [2023-12-02 15:37:21,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:21,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:21,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:21,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:21,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:21,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040600799] [2023-12-02 15:37:21,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040600799] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:21,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:21,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:21,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455504047] [2023-12-02 15:37:21,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:21,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:21,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:21,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:21,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:21,975 INFO L87 Difference]: Start difference. First operand 149957 states and 448134 transitions. Second operand has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-02 15:37:22,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:22,893 INFO L93 Difference]: Finished difference Result 165141 states and 490802 transitions. [2023-12-02 15:37:22,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:22,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2023-12-02 15:37:22,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:23,842 INFO L225 Difference]: With dead ends: 165141 [2023-12-02 15:37:23,842 INFO L226 Difference]: Without dead ends: 164583 [2023-12-02 15:37:23,843 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 [2023-12-02 15:37:23,843 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 105 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:23,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 420 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164583 states. [2023-12-02 15:37:27,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164583 to 151768. [2023-12-02 15:37:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151768 states, 151493 states have (on average 2.993372631078664) internal successors, (453475), 151767 states have internal predecessors, (453475), 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) [2023-12-02 15:37:27,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151768 states to 151768 states and 453475 transitions. [2023-12-02 15:37:27,931 INFO L78 Accepts]: Start accepts. Automaton has 151768 states and 453475 transitions. Word has length 51 [2023-12-02 15:37:27,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:27,931 INFO L495 AbstractCegarLoop]: Abstraction has 151768 states and 453475 transitions. [2023-12-02 15:37:27,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 25.5) internal successors, (51), 3 states have internal predecessors, (51), 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) [2023-12-02 15:37:27,931 INFO L276 IsEmpty]: Start isEmpty. Operand 151768 states and 453475 transitions. [2023-12-02 15:37:27,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 15:37:27,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:27,932 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] [2023-12-02 15:37:27,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 15:37:27,932 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting threadErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:27,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:27,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1104394591, now seen corresponding path program 1 times [2023-12-02 15:37:27,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:27,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243662113] [2023-12-02 15:37:27,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:27,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:27,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:27,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:27,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243662113] [2023-12-02 15:37:27,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243662113] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:27,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:27,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:27,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176091868] [2023-12-02 15:37:27,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:27,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:27,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:27,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:27,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:27,964 INFO L87 Difference]: Start difference. First operand 151768 states and 453475 transitions. Second operand has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-02 15:37:29,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:29,329 INFO L93 Difference]: Finished difference Result 187346 states and 556788 transitions. [2023-12-02 15:37:29,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:29,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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 52 [2023-12-02 15:37:29,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:30,314 INFO L225 Difference]: With dead ends: 187346 [2023-12-02 15:37:30,314 INFO L226 Difference]: Without dead ends: 187346 [2023-12-02 15:37:30,314 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 [2023-12-02 15:37:30,316 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 150 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:30,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 407 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:30,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187346 states. [2023-12-02 15:37:33,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187346 to 149307. [2023-12-02 15:37:34,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149307 states, 149082 states have (on average 2.988777987952939) internal successors, (445573), 149306 states have internal predecessors, (445573), 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) [2023-12-02 15:37:34,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149307 states to 149307 states and 445573 transitions. [2023-12-02 15:37:34,596 INFO L78 Accepts]: Start accepts. Automaton has 149307 states and 445573 transitions. Word has length 52 [2023-12-02 15:37:34,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:34,596 INFO L495 AbstractCegarLoop]: Abstraction has 149307 states and 445573 transitions. [2023-12-02 15:37:34,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.0) internal successors, (52), 3 states have internal predecessors, (52), 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) [2023-12-02 15:37:34,596 INFO L276 IsEmpty]: Start isEmpty. Operand 149307 states and 445573 transitions. [2023-12-02 15:37:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 15:37:34,598 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:34,598 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] [2023-12-02 15:37:34,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 15:37:34,599 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting threadErr5ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:34,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:34,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1452672169, now seen corresponding path program 1 times [2023-12-02 15:37:34,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:34,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882579121] [2023-12-02 15:37:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:34,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:34,639 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:34,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882579121] [2023-12-02 15:37:34,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882579121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:34,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:34,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:34,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827742365] [2023-12-02 15:37:34,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:34,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:34,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:34,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:34,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:34,641 INFO L87 Difference]: Start difference. First operand 149307 states and 445573 transitions. Second operand has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-12-02 15:37:35,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:35,863 INFO L93 Difference]: Finished difference Result 156529 states and 466978 transitions. [2023-12-02 15:37:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:35,863 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2023-12-02 15:37:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:36,352 INFO L225 Difference]: With dead ends: 156529 [2023-12-02 15:37:36,352 INFO L226 Difference]: Without dead ends: 156151 [2023-12-02 15:37:36,352 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 [2023-12-02 15:37:36,353 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 100 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:36,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 394 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 15:37:36,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156151 states. [2023-12-02 15:37:39,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156151 to 151131. [2023-12-02 15:37:39,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151131 states, 150923 states have (on average 2.9872584032917446) internal successors, (450846), 151130 states have internal predecessors, (450846), 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) [2023-12-02 15:37:40,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151131 states to 151131 states and 450846 transitions. [2023-12-02 15:37:40,752 INFO L78 Accepts]: Start accepts. Automaton has 151131 states and 450846 transitions. Word has length 62 [2023-12-02 15:37:40,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:40,753 INFO L495 AbstractCegarLoop]: Abstraction has 151131 states and 450846 transitions. [2023-12-02 15:37:40,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.0) internal successors, (62), 3 states have internal predecessors, (62), 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) [2023-12-02 15:37:40,753 INFO L276 IsEmpty]: Start isEmpty. Operand 151131 states and 450846 transitions. [2023-12-02 15:37:40,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 15:37:40,755 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:40,755 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] [2023-12-02 15:37:40,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 15:37:40,755 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting threadErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:40,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash -494667449, now seen corresponding path program 1 times [2023-12-02 15:37:40,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:40,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652747936] [2023-12-02 15:37:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:40,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 15:37:40,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 15:37:40,787 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 15:37:40,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652747936] [2023-12-02 15:37:40,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652747936] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 15:37:40,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 15:37:40,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 15:37:40,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94545100] [2023-12-02 15:37:40,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 15:37:40,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 15:37:40,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 15:37:40,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 15:37:40,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 15:37:40,789 INFO L87 Difference]: Start difference. First operand 151131 states and 450846 transitions. Second operand has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-02 15:37:42,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 15:37:42,082 INFO L93 Difference]: Finished difference Result 156334 states and 466472 transitions. [2023-12-02 15:37:42,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 15:37:42,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2023-12-02 15:37:42,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 15:37:42,559 INFO L225 Difference]: With dead ends: 156334 [2023-12-02 15:37:42,560 INFO L226 Difference]: Without dead ends: 155344 [2023-12-02 15:37:42,560 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 [2023-12-02 15:37:42,560 INFO L413 NwaCegarLoop]: 261 mSDtfsCounter, 104 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 15:37:42,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 422 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 15:37:42,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155344 states. [2023-12-02 15:37:45,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155344 to 151304. [2023-12-02 15:37:45,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151304 states, 151118 states have (on average 2.986090339999206) internal successors, (451252), 151303 states have internal predecessors, (451252), 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) [2023-12-02 15:37:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151304 states to 151304 states and 451252 transitions. [2023-12-02 15:37:46,291 INFO L78 Accepts]: Start accepts. Automaton has 151304 states and 451252 transitions. Word has length 63 [2023-12-02 15:37:46,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 15:37:46,291 INFO L495 AbstractCegarLoop]: Abstraction has 151304 states and 451252 transitions. [2023-12-02 15:37:46,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 31.5) internal successors, (63), 3 states have internal predecessors, (63), 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) [2023-12-02 15:37:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 151304 states and 451252 transitions. [2023-12-02 15:37:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 15:37:46,293 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 15:37:46,293 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] [2023-12-02 15:37:46,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 15:37:46,293 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 21 more)] === [2023-12-02 15:37:46,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 15:37:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1421871304, now seen corresponding path program 1 times [2023-12-02 15:37:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 15:37:46,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031502218] [2023-12-02 15:37:46,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 15:37:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 15:37:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:37:46,312 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 15:37:46,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 15:37:46,332 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 15:37:46,332 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 15:37:46,333 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (23 of 24 remaining) [2023-12-02 15:37:46,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 24 remaining) [2023-12-02 15:37:46,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (21 of 24 remaining) [2023-12-02 15:37:46,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (20 of 24 remaining) [2023-12-02 15:37:46,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (19 of 24 remaining) [2023-12-02 15:37:46,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 24 remaining) [2023-12-02 15:37:46,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (17 of 24 remaining) [2023-12-02 15:37:46,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (16 of 24 remaining) [2023-12-02 15:37:46,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (15 of 24 remaining) [2023-12-02 15:37:46,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (14 of 24 remaining) [2023-12-02 15:37:46,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (13 of 24 remaining) [2023-12-02 15:37:46,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (12 of 24 remaining) [2023-12-02 15:37:46,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (11 of 24 remaining) [2023-12-02 15:37:46,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (10 of 24 remaining) [2023-12-02 15:37:46,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (9 of 24 remaining) [2023-12-02 15:37:46,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 24 remaining) [2023-12-02 15:37:46,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (7 of 24 remaining) [2023-12-02 15:37:46,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (6 of 24 remaining) [2023-12-02 15:37:46,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONDATA_RACE (5 of 24 remaining) [2023-12-02 15:37:46,336 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr1ASSERT_VIOLATIONDATA_RACE (4 of 24 remaining) [2023-12-02 15:37:46,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr2ASSERT_VIOLATIONDATA_RACE (3 of 24 remaining) [2023-12-02 15:37:46,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr4ASSERT_VIOLATIONDATA_RACE (2 of 24 remaining) [2023-12-02 15:37:46,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr5ASSERT_VIOLATIONDATA_RACE (1 of 24 remaining) [2023-12-02 15:37:46,337 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr3ASSERT_VIOLATIONDATA_RACE (0 of 24 remaining) [2023-12-02 15:37:46,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 15:37:46,337 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 15:37:46,342 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2023-12-02 15:37:46,343 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 15:37:46,384 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-12-02 15:37:46,386 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-12-02 15:37:46,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,387 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-12-02 15:37:46,388 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,388 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-12-02 15:37:46,389 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,389 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,389 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 15:37:46,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-12-02 15:37:46,390 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,391 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-12-02 15:37:46,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:37:46 BasicIcfg [2023-12-02 15:37:46,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 15:37:46,399 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 15:37:46,399 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 15:37:46,399 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 15:37:46,400 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:36:47" (3/4) ... [2023-12-02 15:37:46,401 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 15:37:46,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 15:37:46,403 INFO L158 Benchmark]: Toolchain (without parser) took 59956.16ms. Allocated memory was 144.7MB in the beginning and 15.0GB in the end (delta: 14.9GB). Free memory was 102.0MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 6.8GB. Max. memory is 16.1GB. [2023-12-02 15:37:46,403 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:37:46,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.22ms. Allocated memory is still 144.7MB. Free memory was 101.5MB in the beginning and 81.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 15:37:46,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.66ms. Allocated memory is still 144.7MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:37:46,404 INFO L158 Benchmark]: Boogie Preprocessor took 31.50ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 15:37:46,405 INFO L158 Benchmark]: RCFGBuilder took 440.65ms. Allocated memory is still 144.7MB. Free memory was 78.0MB in the beginning and 59.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-12-02 15:37:46,405 INFO L158 Benchmark]: TraceAbstraction took 58960.09ms. Allocated memory was 144.7MB in the beginning and 15.0GB in the end (delta: 14.9GB). Free memory was 58.6MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 6.7GB. Max. memory is 16.1GB. [2023-12-02 15:37:46,405 INFO L158 Benchmark]: Witness Printer took 3.42ms. Allocated memory is still 15.0GB. Free memory is still 8.2GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 15:37:46,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 109.1MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.22ms. Allocated memory is still 144.7MB. Free memory was 101.5MB in the beginning and 81.7MB in the end (delta: 19.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.66ms. Allocated memory is still 144.7MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.50ms. Allocated memory is still 144.7MB. Free memory was 79.6MB in the beginning and 78.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 440.65ms. Allocated memory is still 144.7MB. Free memory was 78.0MB in the beginning and 59.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 58960.09ms. Allocated memory was 144.7MB in the beginning and 15.0GB in the end (delta: 14.9GB). Free memory was 58.6MB in the beginning and 8.2GB in the end (delta: -8.1GB). Peak memory consumption was 6.7GB. Max. memory is 16.1GB. * Witness Printer took 3.42ms. Allocated memory is still 15.0GB. Free memory is still 8.2GB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - DataRaceFoundResult [Line: 712]: Data race detected [2023-12-02 15:37:46,431 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-12-02 15:37:46,433 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-12-02 15:37:46,433 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,434 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,434 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-12-02 15:37:46,434 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,434 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-12-02 15:37:46,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,435 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 15:37:46,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,436 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-12-02 15:37:46,437 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,437 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-12-02 15:37:46,456 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-12-02 15:37:46,457 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~pre14 could not be translated [2023-12-02 15:37:46,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,458 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-12-02 15:37:46,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem16 could not be translated [2023-12-02 15:37:46,459 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-12-02 15:37:46,460 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated [2023-12-02 15:37:46,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post0 could not be translated [2023-12-02 15:37:46,461 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet1 could not be translated Data race detected The following path leads to a data race: [L685] 0 int threads_alive = 0; VAL [threads_alive=0] [L686] 0 _Bool keep_alive = 1; VAL [keep_alive=1, threads_alive=0] [L687] 0 pthread_mutex_t keep_alive_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0] [L688] 0 int data = 0; VAL [data=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0] [L689] 0 pthread_mutex_t data_mutex = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; VAL [data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0] [L705] 0 int threads_total = __VERIFIER_nondet_int(); VAL [data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1] [L706] CALL 0 assume_abort_if_not(threads_total >= 0) [L682] COND FALSE 0 !(!cond) VAL [\old(cond)=1, cond=1, data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0] [L706] RET 0 assume_abort_if_not(threads_total >= 0) [L707] 0 int i = 0; VAL [data=0, data_mutex={2:0}, i=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1] [L707] COND TRUE 0 i < threads_total VAL [data=0, data_mutex={2:0}, i=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1] [L708] 0 pthread_t tid; VAL [data=0, data_mutex={2:0}, i=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1, tid={5:0}] [L709] FCALL, FORK 0 pthread_create(&tid, ((void *)0), &thread, ((void *)0)) VAL [arg={0:0}, data=0, data_mutex={2:0}, i=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1, tid={5:0}] [L691] 1 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0] [L691] 1 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0] [L710] EXPR 0 \read(tid) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, i=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1, tid={5:0}] [L710] 0 pthread_detach(tid) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, i=0, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1, tid={5:0}] [L707] 0 i++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, i=1, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1, tid={5:0}] [L707] COND FALSE 0 !(i < threads_total) VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, i=1, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1] [L712] 0 threads_alive != threads_total VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=0, threads_total=1] [L691] 1 threads_alive++ VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=1] [L712] 0 threads_alive != threads_total VAL [arg={0:0}, arg={0:0}, data=0, data_mutex={2:0}, keep_alive=1, keep_alive_mutex={1:0}, threads_alive=1, threads_total=1] Now there is a data race on ~threads_alive~0 between C: threads_alive++ [691] and C: threads_alive != threads_total [712] - UnprovableResult [Line: 714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 716]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 717]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 696]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 187 locations, 18 error locations. Started 1 CEGAR loops. OverallTime: 2.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 552 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 552 mSDsluCounter, 2042 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 903 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 269 IncrementalHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 1139 mSDtfsCounter, 269 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2688occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 1504 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 268 ConstructedInterpolants, 0 QuantifiedInterpolants, 359 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 238 locations, 24 error locations. Started 1 CEGAR loops. OverallTime: 56.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 17.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1218 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1218 mSDsluCounter, 4284 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1978 mSDsCounter, 26 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 683 IncrementalHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 26 mSolverCounterUnsat, 2306 mSDtfsCounter, 683 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152761occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 35.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 134691 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 465 NumberOfCodeBlocks, 465 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 486 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-02 15:37:46,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2de2a80-daae-451b-9647-cdb0cc398191/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE