./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:27:41,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:27:41,146 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:27:41,152 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:27:41,153 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:27:41,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:27:41,199 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:27:41,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:27:41,200 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:27:41,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:27:41,201 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:27:41,202 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:27:41,203 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:27:41,204 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:27:41,207 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:27:41,207 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:27:41,208 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:27:41,208 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:27:41,209 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:27:41,209 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:27:41,209 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:27:41,215 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:27:41,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:27:41,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:27:41,216 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:27:41,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:27:41,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:27:41,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:27:41,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:27:41,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:27:41,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:27:41,218 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:27:41,220 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:27:41,221 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:27:41,221 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:27:41,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:27:41,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:27:41,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:27:41,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:27:41,224 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:27:41,224 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:27:41,224 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:27:41,225 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:27:41,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:27:41,225 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:27:41,226 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:27:41,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:27:41,227 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_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10dd65d363f3d099295f575f6743961c3e6b480300728ce34fc95b90972dc72c [2024-11-09 07:27:41,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:27:41,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:27:41,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:27:41,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:27:41,625 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:27:41,627 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i Unable to find full path for "g++" [2024-11-09 07:27:43,967 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:27:44,293 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:27:44,294 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-09 07:27:44,312 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/data/55394108c/66fe653eeac741eba050c8a8d57237c9/FLAGc8eb21848 [2024-11-09 07:27:44,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/data/55394108c/66fe653eeac741eba050c8a8d57237c9 [2024-11-09 07:27:44,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:27:44,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:27:44,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:27:44,338 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:27:44,346 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:27:44,347 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:27:44" (1/1) ... [2024-11-09 07:27:44,348 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4567a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:44, skipping insertion in model container [2024-11-09 07:27:44,349 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:27:44" (1/1) ... [2024-11-09 07:27:44,406 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:27:44,660 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-09 07:27:45,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:27:45,023 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:27:45,043 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/sv-benchmarks/c/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2024-11-09 07:27:45,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:27:45,179 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:27:45,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45 WrapperNode [2024-11-09 07:27:45,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:27:45,182 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:27:45,182 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:27:45,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:27:45,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,218 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,253 INFO L138 Inliner]: procedures = 175, calls = 41, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2024-11-09 07:27:45,256 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:27:45,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:27:45,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:27:45,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:27:45,271 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,272 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,274 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,278 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,288 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,291 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,308 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:27:45,309 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:27:45,310 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:27:45,310 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:27:45,311 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (1/1) ... [2024-11-09 07:27:45,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:27:45,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:45,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:27:45,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:27:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 07:27:45,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:27:45,406 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-09 07:27:45,407 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-09 07:27:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-09 07:27:45,408 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-09 07:27:45,408 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-09 07:27:45,409 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-09 07:27:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:27:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 07:27:45,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:27:45,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:27:45,412 WARN L207 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 07:27:45,603 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:27:45,606 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:27:45,811 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 07:27:45,812 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:27:45,970 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:27:45,971 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:27:45,971 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:27:45 BoogieIcfgContainer [2024-11-09 07:27:45,971 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:27:45,973 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:27:45,974 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:27:45,977 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:27:45,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:27:44" (1/3) ... [2024-11-09 07:27:45,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c2ad5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:27:45, skipping insertion in model container [2024-11-09 07:27:45,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:27:45" (2/3) ... [2024-11-09 07:27:45,979 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53c2ad5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:27:45, skipping insertion in model container [2024-11-09 07:27:45,979 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:27:45" (3/3) ... [2024-11-09 07:27:45,980 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2024-11-09 07:27:45,999 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:27:45,999 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:27:45,999 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 07:27:46,056 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-09 07:27:46,088 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 38 transitions, 88 flow [2024-11-09 07:27:46,385 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 3138 states, 3137 states have (on average 3.4230156200191266) internal successors, (10738), 3137 states have internal predecessors, (10738), 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) [2024-11-09 07:27:46,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:27:46,428 INFO L333 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, 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;@3965439f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:27:46,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-09 07:27:46,441 INFO L276 IsEmpty]: Start isEmpty. Operand has 3138 states, 3137 states have (on average 3.4230156200191266) internal successors, (10738), 3137 states have internal predecessors, (10738), 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) [2024-11-09 07:27:46,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 07:27:46,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:46,463 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:46,464 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:46,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:46,470 INFO L85 PathProgramCache]: Analyzing trace with hash -160624991, now seen corresponding path program 1 times [2024-11-09 07:27:46,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:46,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617039948] [2024-11-09 07:27:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:46,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:47,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:47,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:47,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617039948] [2024-11-09 07:27:47,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617039948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:47,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:47,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:27:47,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568178375] [2024-11-09 07:27:47,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:47,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:27:47,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:47,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:27:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:27:47,315 INFO L87 Difference]: Start difference. First operand has 3138 states, 3137 states have (on average 3.4230156200191266) internal successors, (10738), 3137 states have internal predecessors, (10738), 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 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-09 07:27:47,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:47,700 INFO L93 Difference]: Finished difference Result 4290 states and 14506 transitions. [2024-11-09 07:27:47,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:27:47,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-09 07:27:47,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:47,761 INFO L225 Difference]: With dead ends: 4290 [2024-11-09 07:27:47,761 INFO L226 Difference]: Without dead ends: 2946 [2024-11-09 07:27:47,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:27:47,775 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 71 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:47,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 141 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:27:47,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2946 states. [2024-11-09 07:27:48,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2946 to 2946. [2024-11-09 07:27:48,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2946 states, 2945 states have (on average 3.396264855687606) internal successors, (10002), 2945 states have internal predecessors, (10002), 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) [2024-11-09 07:27:48,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2946 states to 2946 states and 10002 transitions. [2024-11-09 07:27:48,107 INFO L78 Accepts]: Start accepts. Automaton has 2946 states and 10002 transitions. Word has length 14 [2024-11-09 07:27:48,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:48,108 INFO L471 AbstractCegarLoop]: Abstraction has 2946 states and 10002 transitions. [2024-11-09 07:27:48,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-09 07:27:48,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2946 states and 10002 transitions. [2024-11-09 07:27:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 07:27:48,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:48,123 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:48,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:27:48,124 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:48,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:48,125 INFO L85 PathProgramCache]: Analyzing trace with hash 760063906, now seen corresponding path program 1 times [2024-11-09 07:27:48,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:48,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265568864] [2024-11-09 07:27:48,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:48,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:48,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:48,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:48,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265568864] [2024-11-09 07:27:48,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265568864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:48,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:48,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:27:48,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851113015] [2024-11-09 07:27:48,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:48,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:27:48,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:48,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:27:48,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:27:48,400 INFO L87 Difference]: Start difference. First operand 2946 states and 10002 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-09 07:27:48,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:48,980 INFO L93 Difference]: Finished difference Result 4218 states and 14232 transitions. [2024-11-09 07:27:48,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 07:27:48,981 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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 16 [2024-11-09 07:27:48,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:49,021 INFO L225 Difference]: With dead ends: 4218 [2024-11-09 07:27:49,021 INFO L226 Difference]: Without dead ends: 3210 [2024-11-09 07:27:49,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2024-11-09 07:27:49,028 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 170 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:49,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 176 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 07:27:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3210 states. [2024-11-09 07:27:49,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3210 to 3114. [2024-11-09 07:27:49,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3114 states, 3113 states have (on average 3.393511082557019) internal successors, (10564), 3113 states have internal predecessors, (10564), 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) [2024-11-09 07:27:49,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3114 states to 3114 states and 10564 transitions. [2024-11-09 07:27:49,251 INFO L78 Accepts]: Start accepts. Automaton has 3114 states and 10564 transitions. Word has length 16 [2024-11-09 07:27:49,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:49,252 INFO L471 AbstractCegarLoop]: Abstraction has 3114 states and 10564 transitions. [2024-11-09 07:27:49,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 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) [2024-11-09 07:27:49,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3114 states and 10564 transitions. [2024-11-09 07:27:49,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-09 07:27:49,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:49,260 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:49,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:27:49,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:49,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 2104645838, now seen corresponding path program 1 times [2024-11-09 07:27:49,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:49,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097132642] [2024-11-09 07:27:49,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:49,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:49,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:49,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:49,563 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:49,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097132642] [2024-11-09 07:27:49,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097132642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:49,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:49,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:27:49,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100339055] [2024-11-09 07:27:49,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:49,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:27:49,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:49,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:27:49,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:27:49,569 INFO L87 Difference]: Start difference. First operand 3114 states and 10564 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-11-09 07:27:49,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:49,885 INFO L93 Difference]: Finished difference Result 4570 states and 15340 transitions. [2024-11-09 07:27:49,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:27:49,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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 17 [2024-11-09 07:27:49,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:49,905 INFO L225 Difference]: With dead ends: 4570 [2024-11-09 07:27:49,905 INFO L226 Difference]: Without dead ends: 2034 [2024-11-09 07:27:49,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-09 07:27:49,911 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 192 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:49,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 157 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:27:49,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2034 states. [2024-11-09 07:27:49,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2034 to 2034. [2024-11-09 07:27:49,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2034 states, 2033 states have (on average 3.279881947860305) internal successors, (6668), 2033 states have internal predecessors, (6668), 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) [2024-11-09 07:27:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2034 states to 2034 states and 6668 transitions. [2024-11-09 07:27:50,011 INFO L78 Accepts]: Start accepts. Automaton has 2034 states and 6668 transitions. Word has length 17 [2024-11-09 07:27:50,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:50,012 INFO L471 AbstractCegarLoop]: Abstraction has 2034 states and 6668 transitions. [2024-11-09 07:27:50,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 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) [2024-11-09 07:27:50,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2034 states and 6668 transitions. [2024-11-09 07:27:50,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:27:50,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:50,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:50,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:27:50,019 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:50,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:50,020 INFO L85 PathProgramCache]: Analyzing trace with hash 512162755, now seen corresponding path program 1 times [2024-11-09 07:27:50,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814860650] [2024-11-09 07:27:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:50,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:50,167 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:50,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814860650] [2024-11-09 07:27:50,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814860650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:50,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:50,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:27:50,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880703076] [2024-11-09 07:27:50,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:50,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:27:50,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:50,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:27:50,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:27:50,170 INFO L87 Difference]: Start difference. First operand 2034 states and 6668 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-09 07:27:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:50,263 INFO L93 Difference]: Finished difference Result 3046 states and 9804 transitions. [2024-11-09 07:27:50,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:27:50,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2024-11-09 07:27:50,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:50,282 INFO L225 Difference]: With dead ends: 3046 [2024-11-09 07:27:50,283 INFO L226 Difference]: Without dead ends: 1638 [2024-11-09 07:27:50,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:27:50,288 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 57 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 51 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 [2024-11-09 07:27:50,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 51 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:27:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1638 states. [2024-11-09 07:27:50,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1638 to 1638. [2024-11-09 07:27:50,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1637 states have (on average 3.127672571777642) internal successors, (5120), 1637 states have internal predecessors, (5120), 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) [2024-11-09 07:27:50,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 5120 transitions. [2024-11-09 07:27:50,381 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 5120 transitions. Word has length 18 [2024-11-09 07:27:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:50,381 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 5120 transitions. [2024-11-09 07:27:50,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 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) [2024-11-09 07:27:50,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 5120 transitions. [2024-11-09 07:27:50,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 07:27:50,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:50,386 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:50,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:27:50,387 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:50,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash -207220448, now seen corresponding path program 1 times [2024-11-09 07:27:50,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:50,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111988702] [2024-11-09 07:27:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:50,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:50,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:50,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111988702] [2024-11-09 07:27:50,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111988702] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:50,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:50,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 07:27:50,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834346692] [2024-11-09 07:27:50,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:50,518 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 07:27:50,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:50,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 07:27:50,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:27:50,520 INFO L87 Difference]: Start difference. First operand 1638 states and 5120 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:27:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:50,637 INFO L93 Difference]: Finished difference Result 2026 states and 6196 transitions. [2024-11-09 07:27:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:27:50,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-09 07:27:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:50,652 INFO L225 Difference]: With dead ends: 2026 [2024-11-09 07:27:50,653 INFO L226 Difference]: Without dead ends: 1014 [2024-11-09 07:27:50,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 07:27:50,657 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 93 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:50,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 63 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:50,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-09 07:27:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1014. [2024-11-09 07:27:50,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1014 states, 1013 states have (on average 2.910167818361303) internal successors, (2948), 1013 states have internal predecessors, (2948), 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) [2024-11-09 07:27:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1014 states to 1014 states and 2948 transitions. [2024-11-09 07:27:50,701 INFO L78 Accepts]: Start accepts. Automaton has 1014 states and 2948 transitions. Word has length 20 [2024-11-09 07:27:50,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:50,702 INFO L471 AbstractCegarLoop]: Abstraction has 1014 states and 2948 transitions. [2024-11-09 07:27:50,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 07:27:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 1014 states and 2948 transitions. [2024-11-09 07:27:50,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 07:27:50,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:50,706 INFO L215 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] [2024-11-09 07:27:50,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:27:50,706 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:50,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:50,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1790715063, now seen corresponding path program 1 times [2024-11-09 07:27:50,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:50,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427801847] [2024-11-09 07:27:50,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:50,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:50,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:50,859 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:50,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427801847] [2024-11-09 07:27:50,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427801847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:50,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:50,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 07:27:50,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074098467] [2024-11-09 07:27:50,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:50,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:27:50,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:50,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:27:50,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:27:50,863 INFO L87 Difference]: Start difference. First operand 1014 states and 2948 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-09 07:27:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:51,003 INFO L93 Difference]: Finished difference Result 1070 states and 3080 transitions. [2024-11-09 07:27:51,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:27:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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 23 [2024-11-09 07:27:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:51,015 INFO L225 Difference]: With dead ends: 1070 [2024-11-09 07:27:51,015 INFO L226 Difference]: Without dead ends: 682 [2024-11-09 07:27:51,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:27:51,018 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 135 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:51,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 46 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:51,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-09 07:27:51,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 682. [2024-11-09 07:27:51,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 681 states have (on average 2.866372980910426) internal successors, (1952), 681 states have internal predecessors, (1952), 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) [2024-11-09 07:27:51,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1952 transitions. [2024-11-09 07:27:51,050 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1952 transitions. Word has length 23 [2024-11-09 07:27:51,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:51,050 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1952 transitions. [2024-11-09 07:27:51,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2024-11-09 07:27:51,051 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1952 transitions. [2024-11-09 07:27:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 07:27:51,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:51,054 INFO L215 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] [2024-11-09 07:27:51,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:27:51,054 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:51,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:51,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1464836724, now seen corresponding path program 1 times [2024-11-09 07:27:51,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:51,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770664957] [2024-11-09 07:27:51,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:51,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:51,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:51,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:51,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:51,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770664957] [2024-11-09 07:27:51,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770664957] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:51,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:51,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:27:51,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698832920] [2024-11-09 07:27:51,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:51,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:27:51,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:51,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:27:51,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:27:51,237 INFO L87 Difference]: Start difference. First operand 682 states and 1952 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-11-09 07:27:51,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:51,403 INFO L93 Difference]: Finished difference Result 930 states and 2636 transitions. [2024-11-09 07:27:51,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:27:51,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2024-11-09 07:27:51,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:51,412 INFO L225 Difference]: With dead ends: 930 [2024-11-09 07:27:51,412 INFO L226 Difference]: Without dead ends: 406 [2024-11-09 07:27:51,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:27:51,415 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 41 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:51,415 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 133 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:51,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2024-11-09 07:27:51,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2024-11-09 07:27:51,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 2.745679012345679) internal successors, (1112), 405 states have internal predecessors, (1112), 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) [2024-11-09 07:27:51,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1112 transitions. [2024-11-09 07:27:51,435 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1112 transitions. Word has length 29 [2024-11-09 07:27:51,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:51,435 INFO L471 AbstractCegarLoop]: Abstraction has 406 states and 1112 transitions. [2024-11-09 07:27:51,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-11-09 07:27:51,436 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1112 transitions. [2024-11-09 07:27:51,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 07:27:51,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:51,438 INFO L215 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] [2024-11-09 07:27:51,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 07:27:51,438 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-09 07:27:51,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:51,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1742984964, now seen corresponding path program 2 times [2024-11-09 07:27:51,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:51,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530624669] [2024-11-09 07:27:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:51,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:51,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:51,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:27:51,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:51,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530624669] [2024-11-09 07:27:51,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530624669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:51,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:27:51,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 07:27:51,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105102151] [2024-11-09 07:27:51,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:51,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:27:51,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:51,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:27:51,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:27:51,617 INFO L87 Difference]: Start difference. First operand 406 states and 1112 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-11-09 07:27:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:51,771 INFO L93 Difference]: Finished difference Result 406 states and 1112 transitions. [2024-11-09 07:27:51,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:27:51,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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 29 [2024-11-09 07:27:51,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:51,777 INFO L225 Difference]: With dead ends: 406 [2024-11-09 07:27:51,778 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:27:51,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:27:51,780 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 44 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:51,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 67 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:51,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:27:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:27:51,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-09 07:27:51,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:27:51,787 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2024-11-09 07:27:51,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:51,787 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:27:51,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 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) [2024-11-09 07:27:51,788 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:27:51,788 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:27:51,791 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-09 07:27:51,792 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-09 07:27:51,792 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-09 07:27:51,792 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-09 07:27:51,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 07:27:51,797 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:51,800 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 07:27:51,801 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:27:51,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:27:51 BasicIcfg [2024-11-09 07:27:51,804 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:27:51,805 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:27:51,805 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:27:51,805 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:27:51,806 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:27:45" (3/4) ... [2024-11-09 07:27:51,809 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:27:51,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-09 07:27:51,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-09 07:27:51,813 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2024-11-09 07:27:51,818 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-11-09 07:27:51,818 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 07:27:51,819 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 07:27:51,819 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 07:27:51,900 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:27:51,901 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:27:51,901 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:27:51,902 INFO L158 Benchmark]: Toolchain (without parser) took 7566.52ms. Allocated memory was 178.3MB in the beginning and 239.1MB in the end (delta: 60.8MB). Free memory was 140.0MB in the beginning and 96.2MB in the end (delta: 43.8MB). Peak memory consumption was 106.4MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,902 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:27:51,902 INFO L158 Benchmark]: CACSL2BoogieTranslator took 843.78ms. Allocated memory is still 178.3MB. Free memory was 140.0MB in the beginning and 116.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,903 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.29ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 114.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,903 INFO L158 Benchmark]: Boogie Preprocessor took 51.45ms. Allocated memory is still 178.3MB. Free memory was 114.1MB in the beginning and 112.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,904 INFO L158 Benchmark]: RCFGBuilder took 662.04ms. Allocated memory is still 178.3MB. Free memory was 112.8MB in the beginning and 145.0MB in the end (delta: -32.3MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,904 INFO L158 Benchmark]: TraceAbstraction took 5831.25ms. Allocated memory was 178.3MB in the beginning and 239.1MB in the end (delta: 60.8MB). Free memory was 144.3MB in the beginning and 100.4MB in the end (delta: 43.9MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,904 INFO L158 Benchmark]: Witness Printer took 96.08ms. Allocated memory is still 239.1MB. Free memory was 100.4MB in the beginning and 96.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 07:27:51,906 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 117.4MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 843.78ms. Allocated memory is still 178.3MB. Free memory was 140.0MB in the beginning and 116.2MB in the end (delta: 23.8MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.29ms. Allocated memory is still 178.3MB. Free memory was 115.9MB in the beginning and 114.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.45ms. Allocated memory is still 178.3MB. Free memory was 114.1MB in the beginning and 112.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 662.04ms. Allocated memory is still 178.3MB. Free memory was 112.8MB in the beginning and 145.0MB in the end (delta: -32.3MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5831.25ms. Allocated memory was 178.3MB in the beginning and 239.1MB in the end (delta: 60.8MB). Free memory was 144.3MB in the beginning and 100.4MB in the end (delta: 43.9MB). Peak memory consumption was 104.4MB. Max. memory is 16.1GB. * Witness Printer took 96.08ms. Allocated memory is still 239.1MB. Free memory was 100.4MB in the beginning and 96.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 62 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 803 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 803 mSDsluCounter, 834 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 597 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 621 IncrementalHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 237 mSDtfsCounter, 621 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3138occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 96 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 158 ConstructedInterpolants, 0 QuantifiedInterpolants, 640 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 07:27:51,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8594af03-dadd-4f28-b627-9e683ee9540c/bin/utaipan-verify-YMUCfTKeje/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 Result: TRUE