./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/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_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:38:51,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:38:51,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:38:51,470 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:38:51,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:38:51,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:38:51,502 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:38:51,502 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:38:51,503 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:38:51,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:38:51,506 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:38:51,506 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:38:51,506 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:38:51,507 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:38:51,507 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:38:51,507 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:38:51,508 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:38:51,512 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:38:51,513 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:38:51,513 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:38:51,513 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:38:51,514 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:38:51,514 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:38:51,515 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:38:51,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:38:51,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:38:51,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:38:51,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:38:51,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:38:51,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:38:51,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:38:51,520 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:38:51,520 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:38:51,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:38:51,521 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:38:51,521 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:38:51,521 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:38:51,522 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:38:51,522 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:38:51,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:38:51,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:38:51,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:38:51,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:38:51,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:38:51,525 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:38:51,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:38:51,526 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:38:51,526 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:38:51,526 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:38:51,526 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_41427140-c6de-4ab4-b46c-44779ad9f9c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e2f466b16db44ce2fec1aabf9e70b4ab734ef2801c32e66d10c5bcbcceb5301 [2024-11-09 04:38:51,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:38:51,857 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:38:51,859 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:38:51,860 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:38:51,861 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:38:51,862 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/pthread-atomic/read_write_lock-2.i Unable to find full path for "g++" [2024-11-09 04:38:53,901 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:38:54,141 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:38:54,142 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/sv-benchmarks/c/pthread-atomic/read_write_lock-2.i [2024-11-09 04:38:54,157 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/data/657926fb4/d32e4369c9924042a8487a158f4f55cd/FLAG73c3f7939 [2024-11-09 04:38:54,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/data/657926fb4/d32e4369c9924042a8487a158f4f55cd [2024-11-09 04:38:54,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:38:54,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:38:54,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:38:54,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:38:54,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:38:54,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7010ea15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54, skipping insertion in model container [2024-11-09 04:38:54,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:38:54,652 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:38:54,662 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:38:54,713 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:38:54,753 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:38:54,754 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54 WrapperNode [2024-11-09 04:38:54,754 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:38:54,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:38:54,756 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:38:54,756 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:38:54,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,820 INFO L138 Inliner]: procedures = 172, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 100 [2024-11-09 04:38:54,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:38:54,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:38:54,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:38:54,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:38:54,829 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,840 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,855 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:38:54,856 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:38:54,858 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:38:54,858 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:38:54,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (1/1) ... [2024-11-09 04:38:54,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:38:54,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:38:54,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:38:54,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:38:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-09 04:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-11-09 04:38:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-11-09 04:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-09 04:38:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:38:54,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:38:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-09 04:38:54,926 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-09 04:38:54,927 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 04:38:55,048 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:38:55,051 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:38:55,259 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 04:38:55,259 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:38:55,440 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:38:55,441 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 04:38:55,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:55 BoogieIcfgContainer [2024-11-09 04:38:55,441 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:38:55,444 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:38:55,444 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:38:55,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:38:55,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:38:54" (1/3) ... [2024-11-09 04:38:55,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee3168e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:55, skipping insertion in model container [2024-11-09 04:38:55,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:38:54" (2/3) ... [2024-11-09 04:38:55,450 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ee3168e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:38:55, skipping insertion in model container [2024-11-09 04:38:55,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:55" (3/3) ... [2024-11-09 04:38:55,451 INFO L112 eAbstractionObserver]: Analyzing ICFG read_write_lock-2.i [2024-11-09 04:38:55,470 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:38:55,471 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-09 04:38:55,471 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 04:38:55,569 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 04:38:55,643 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 56 transitions, 140 flow [2024-11-09 04:38:56,791 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18206 states, 18182 states have (on average 3.9632053679463204) internal successors, (72059), 18205 states have internal predecessors, (72059), 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 04:38:56,829 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:38:56,835 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;@412e6aba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:38:56,836 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-09 04:38:56,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 18206 states, 18182 states have (on average 3.9632053679463204) internal successors, (72059), 18205 states have internal predecessors, (72059), 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 04:38:56,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 04:38:56,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:38:56,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 04:38:56,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:38:56,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:38:56,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1123476844, now seen corresponding path program 1 times [2024-11-09 04:38:56,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:38:56,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442012756] [2024-11-09 04:38:56,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:38:56,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:38:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:38:57,359 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 04:38:57,359 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:38:57,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442012756] [2024-11-09 04:38:57,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442012756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:38:57,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:38:57,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 04:38:57,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932901333] [2024-11-09 04:38:57,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:38:57,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:38:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:38:57,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:38:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:57,445 INFO L87 Difference]: Start difference. First operand has 18206 states, 18182 states have (on average 3.9632053679463204) internal successors, (72059), 18205 states have internal predecessors, (72059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 04:38:58,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:38:58,488 INFO L93 Difference]: Finished difference Result 40046 states and 152158 transitions. [2024-11-09 04:38:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:38:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2024-11-09 04:38:58,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:38:59,072 INFO L225 Difference]: With dead ends: 40046 [2024-11-09 04:38:59,076 INFO L226 Difference]: Without dead ends: 30256 [2024-11-09 04:38:59,114 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:38:59,121 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 33 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:38:59,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 40 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:38:59,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30256 states. [2024-11-09 04:39:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30256 to 27708. [2024-11-09 04:39:00,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27708 states, 27688 states have (on average 3.8080395839352787) internal successors, (105437), 27707 states have internal predecessors, (105437), 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 04:39:01,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27708 states to 27708 states and 105437 transitions. [2024-11-09 04:39:01,291 INFO L78 Accepts]: Start accepts. Automaton has 27708 states and 105437 transitions. Word has length 6 [2024-11-09 04:39:01,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:01,291 INFO L471 AbstractCegarLoop]: Abstraction has 27708 states and 105437 transitions. [2024-11-09 04:39:01,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 04:39:01,292 INFO L276 IsEmpty]: Start isEmpty. Operand 27708 states and 105437 transitions. [2024-11-09 04:39:01,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 04:39:01,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:01,301 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:01,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:39:01,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:01,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:01,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1760185162, now seen corresponding path program 1 times [2024-11-09 04:39:01,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:01,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288554158] [2024-11-09 04:39:01,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:01,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:01,543 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 04:39:01,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:01,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288554158] [2024-11-09 04:39:01,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288554158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:01,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:01,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:39:01,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317844690] [2024-11-09 04:39:01,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:01,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:39:01,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:01,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:39:01,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:01,547 INFO L87 Difference]: Start difference. First operand 27708 states and 105437 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:39:02,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:02,343 INFO L93 Difference]: Finished difference Result 39920 states and 149362 transitions. [2024-11-09 04:39:02,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:39:02,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-09 04:39:02,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:02,510 INFO L225 Difference]: With dead ends: 39920 [2024-11-09 04:39:02,511 INFO L226 Difference]: Without dead ends: 18046 [2024-11-09 04:39:02,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:02,550 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 52 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:02,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 50 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18046 states. [2024-11-09 04:39:03,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18046 to 16600. [2024-11-09 04:39:03,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16600 states, 16568 states have (on average 3.5874577498792855) internal successors, (59437), 16599 states have internal predecessors, (59437), 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 04:39:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16600 states to 16600 states and 59437 transitions. [2024-11-09 04:39:03,426 INFO L78 Accepts]: Start accepts. Automaton has 16600 states and 59437 transitions. Word has length 12 [2024-11-09 04:39:03,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:03,428 INFO L471 AbstractCegarLoop]: Abstraction has 16600 states and 59437 transitions. [2024-11-09 04:39:03,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:39:03,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16600 states and 59437 transitions. [2024-11-09 04:39:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 04:39:03,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:03,432 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:03,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:39:03,432 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:03,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:03,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1760185161, now seen corresponding path program 1 times [2024-11-09 04:39:03,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:03,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783904999] [2024-11-09 04:39:03,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:03,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:03,542 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 04:39:03,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:03,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783904999] [2024-11-09 04:39:03,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783904999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:03,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:03,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:39:03,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822315829] [2024-11-09 04:39:03,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:03,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:39:03,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:03,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:39:03,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:03,547 INFO L87 Difference]: Start difference. First operand 16600 states and 59437 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:39:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:04,070 INFO L93 Difference]: Finished difference Result 19237 states and 66542 transitions. [2024-11-09 04:39:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:39:04,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2024-11-09 04:39:04,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:04,175 INFO L225 Difference]: With dead ends: 19237 [2024-11-09 04:39:04,175 INFO L226 Difference]: Without dead ends: 13207 [2024-11-09 04:39:04,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:39:04,192 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 64 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:04,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 44 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:04,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13207 states. [2024-11-09 04:39:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13207 to 12346. [2024-11-09 04:39:04,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12346 states, 12322 states have (on average 3.5904074013958773) internal successors, (44241), 12345 states have internal predecessors, (44241), 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 04:39:04,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12346 states to 12346 states and 44241 transitions. [2024-11-09 04:39:04,889 INFO L78 Accepts]: Start accepts. Automaton has 12346 states and 44241 transitions. Word has length 12 [2024-11-09 04:39:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:04,890 INFO L471 AbstractCegarLoop]: Abstraction has 12346 states and 44241 transitions. [2024-11-09 04:39:04,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 04:39:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 12346 states and 44241 transitions. [2024-11-09 04:39:04,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 04:39:04,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:04,900 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 04:39:04,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:39:04,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:04,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:04,901 INFO L85 PathProgramCache]: Analyzing trace with hash 675615030, now seen corresponding path program 1 times [2024-11-09 04:39:04,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:04,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083485601] [2024-11-09 04:39:04,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:04,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:04,956 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 04:39:04,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:04,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083485601] [2024-11-09 04:39:04,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083485601] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:04,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:04,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:39:04,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431970068] [2024-11-09 04:39:04,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:04,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 04:39:04,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:04,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 04:39:04,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:04,959 INFO L87 Difference]: Start difference. First operand 12346 states and 44241 transitions. Second operand has 3 states, 2 states have (on average 9.0) 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 04:39:05,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:05,156 INFO L93 Difference]: Finished difference Result 14579 states and 51619 transitions. [2024-11-09 04:39:05,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 04:39:05,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) 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 04:39:05,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:05,240 INFO L225 Difference]: With dead ends: 14579 [2024-11-09 04:39:05,240 INFO L226 Difference]: Without dead ends: 12920 [2024-11-09 04:39:05,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 04:39:05,250 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 38 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:05,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 30 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:05,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12920 states. [2024-11-09 04:39:05,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12920 to 12920. [2024-11-09 04:39:05,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12920 states, 12900 states have (on average 3.5366666666666666) internal successors, (45623), 12919 states have internal predecessors, (45623), 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 04:39:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12920 states to 12920 states and 45623 transitions. [2024-11-09 04:39:05,872 INFO L78 Accepts]: Start accepts. Automaton has 12920 states and 45623 transitions. Word has length 18 [2024-11-09 04:39:05,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:05,873 INFO L471 AbstractCegarLoop]: Abstraction has 12920 states and 45623 transitions. [2024-11-09 04:39:05,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) 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 04:39:05,874 INFO L276 IsEmpty]: Start isEmpty. Operand 12920 states and 45623 transitions. [2024-11-09 04:39:05,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:39:05,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:05,885 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:05,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:39:05,886 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:05,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:05,887 INFO L85 PathProgramCache]: Analyzing trace with hash -530864364, now seen corresponding path program 1 times [2024-11-09 04:39:05,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:05,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681916422] [2024-11-09 04:39:05,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:05,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:06,050 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 04:39:06,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:06,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681916422] [2024-11-09 04:39:06,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681916422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:06,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:06,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:06,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831970143] [2024-11-09 04:39:06,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:06,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:06,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:06,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:06,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:06,052 INFO L87 Difference]: Start difference. First operand 12920 states and 45623 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:06,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:06,340 INFO L93 Difference]: Finished difference Result 13214 states and 46375 transitions. [2024-11-09 04:39:06,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:39:06,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2024-11-09 04:39:06,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:06,712 INFO L225 Difference]: With dead ends: 13214 [2024-11-09 04:39:06,712 INFO L226 Difference]: Without dead ends: 11966 [2024-11-09 04:39:06,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:06,720 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 112 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:06,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 104 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:06,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11966 states. [2024-11-09 04:39:07,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11966 to 11672. [2024-11-09 04:39:07,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11672 states, 11654 states have (on average 3.5372404324695386) internal successors, (41223), 11671 states have internal predecessors, (41223), 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 04:39:07,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11672 states to 11672 states and 41223 transitions. [2024-11-09 04:39:07,210 INFO L78 Accepts]: Start accepts. Automaton has 11672 states and 41223 transitions. Word has length 19 [2024-11-09 04:39:07,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:07,211 INFO L471 AbstractCegarLoop]: Abstraction has 11672 states and 41223 transitions. [2024-11-09 04:39:07,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:07,212 INFO L276 IsEmpty]: Start isEmpty. Operand 11672 states and 41223 transitions. [2024-11-09 04:39:07,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:39:07,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:07,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:07,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 04:39:07,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:07,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:07,226 INFO L85 PathProgramCache]: Analyzing trace with hash -530864363, now seen corresponding path program 1 times [2024-11-09 04:39:07,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:07,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537860165] [2024-11-09 04:39:07,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:07,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:07,375 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 04:39:07,375 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:07,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537860165] [2024-11-09 04:39:07,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537860165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:07,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:07,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:07,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064240160] [2024-11-09 04:39:07,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:07,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:07,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:07,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:07,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:07,378 INFO L87 Difference]: Start difference. First operand 11672 states and 41223 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:07,688 INFO L93 Difference]: Finished difference Result 13526 states and 47155 transitions. [2024-11-09 04:39:07,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:39:07,689 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2024-11-09 04:39:07,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:07,769 INFO L225 Difference]: With dead ends: 13526 [2024-11-09 04:39:07,769 INFO L226 Difference]: Without dead ends: 11342 [2024-11-09 04:39:07,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:07,780 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 116 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:07,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 122 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:07,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11342 states. [2024-11-09 04:39:08,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11342 to 11048. [2024-11-09 04:39:08,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11048 states, 11034 states have (on average 3.5411455501178177) internal successors, (39073), 11047 states have internal predecessors, (39073), 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 04:39:08,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11048 states to 11048 states and 39073 transitions. [2024-11-09 04:39:08,245 INFO L78 Accepts]: Start accepts. Automaton has 11048 states and 39073 transitions. Word has length 19 [2024-11-09 04:39:08,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:08,247 INFO L471 AbstractCegarLoop]: Abstraction has 11048 states and 39073 transitions. [2024-11-09 04:39:08,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:08,247 INFO L276 IsEmpty]: Start isEmpty. Operand 11048 states and 39073 transitions. [2024-11-09 04:39:08,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:39:08,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:08,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:08,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 04:39:08,259 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:08,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:08,260 INFO L85 PathProgramCache]: Analyzing trace with hash -200748034, now seen corresponding path program 1 times [2024-11-09 04:39:08,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:08,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100505548] [2024-11-09 04:39:08,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:08,597 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 04:39:08,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:08,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100505548] [2024-11-09 04:39:08,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100505548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:08,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:08,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:08,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436319882] [2024-11-09 04:39:08,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:08,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:08,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:08,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:08,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:08,600 INFO L87 Difference]: Start difference. First operand 11048 states and 39073 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:08,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:08,864 INFO L93 Difference]: Finished difference Result 11048 states and 39073 transitions. [2024-11-09 04:39:08,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:39:08,865 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2024-11-09 04:39:08,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:08,929 INFO L225 Difference]: With dead ends: 11048 [2024-11-09 04:39:08,930 INFO L226 Difference]: Without dead ends: 9744 [2024-11-09 04:39:08,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:08,938 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 148 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:08,938 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 100 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:08,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2024-11-09 04:39:09,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2024-11-09 04:39:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9732 states have (on average 3.547061241265927) internal successors, (34520), 9743 states have internal predecessors, (34520), 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 04:39:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 34520 transitions. [2024-11-09 04:39:09,221 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 34520 transitions. Word has length 19 [2024-11-09 04:39:09,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:09,222 INFO L471 AbstractCegarLoop]: Abstraction has 9744 states and 34520 transitions. [2024-11-09 04:39:09,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:09,222 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 34520 transitions. [2024-11-09 04:39:09,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 04:39:09,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:09,231 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:09,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 04:39:09,232 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:09,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash -200748033, now seen corresponding path program 1 times [2024-11-09 04:39:09,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:09,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042510403] [2024-11-09 04:39:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:09,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:09,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:09,338 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 04:39:09,338 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:09,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042510403] [2024-11-09 04:39:09,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042510403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:09,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:09,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:09,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684348674] [2024-11-09 04:39:09,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:09,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:09,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:09,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:09,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:09,341 INFO L87 Difference]: Start difference. First operand 9744 states and 34520 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:09,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:09,586 INFO L93 Difference]: Finished difference Result 11353 states and 39819 transitions. [2024-11-09 04:39:09,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:39:09,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 19 [2024-11-09 04:39:09,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:09,629 INFO L225 Difference]: With dead ends: 11353 [2024-11-09 04:39:09,629 INFO L226 Difference]: Without dead ends: 8847 [2024-11-09 04:39:09,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:09,636 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 93 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:09,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 130 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 04:39:09,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8847 states. [2024-11-09 04:39:09,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8847 to 8847. [2024-11-09 04:39:09,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8847 states, 8839 states have (on average 3.5645435003959722) internal successors, (31507), 8846 states have internal predecessors, (31507), 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 04:39:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8847 states to 8847 states and 31507 transitions. [2024-11-09 04:39:10,040 INFO L78 Accepts]: Start accepts. Automaton has 8847 states and 31507 transitions. Word has length 19 [2024-11-09 04:39:10,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:10,040 INFO L471 AbstractCegarLoop]: Abstraction has 8847 states and 31507 transitions. [2024-11-09 04:39:10,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 04:39:10,040 INFO L276 IsEmpty]: Start isEmpty. Operand 8847 states and 31507 transitions. [2024-11-09 04:39:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 04:39:10,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:10,057 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] [2024-11-09 04:39:10,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 04:39:10,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:10,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:10,058 INFO L85 PathProgramCache]: Analyzing trace with hash 673259146, now seen corresponding path program 1 times [2024-11-09 04:39:10,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:10,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694293588] [2024-11-09 04:39:10,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:10,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:10,148 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 04:39:10,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694293588] [2024-11-09 04:39:10,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694293588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:10,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:10,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:10,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963937100] [2024-11-09 04:39:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:10,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:10,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:10,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:10,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:10,151 INFO L87 Difference]: Start difference. First operand 8847 states and 31507 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:10,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:10,320 INFO L93 Difference]: Finished difference Result 8847 states and 31507 transitions. [2024-11-09 04:39:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:39:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 04:39:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:10,370 INFO L225 Difference]: With dead ends: 8847 [2024-11-09 04:39:10,370 INFO L226 Difference]: Without dead ends: 7238 [2024-11-09 04:39:10,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:10,376 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 114 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:10,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 106 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7238 states. [2024-11-09 04:39:10,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7238 to 7238. [2024-11-09 04:39:10,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7238 states, 7234 states have (on average 3.558197401161183) internal successors, (25740), 7237 states have internal predecessors, (25740), 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 04:39:10,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7238 states to 7238 states and 25740 transitions. [2024-11-09 04:39:10,569 INFO L78 Accepts]: Start accepts. Automaton has 7238 states and 25740 transitions. Word has length 25 [2024-11-09 04:39:10,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:10,570 INFO L471 AbstractCegarLoop]: Abstraction has 7238 states and 25740 transitions. [2024-11-09 04:39:10,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:10,570 INFO L276 IsEmpty]: Start isEmpty. Operand 7238 states and 25740 transitions. [2024-11-09 04:39:10,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 04:39:10,579 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:39:10,579 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] [2024-11-09 04:39:10,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 04:39:10,579 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-09 04:39:10,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:39:10,580 INFO L85 PathProgramCache]: Analyzing trace with hash 673245272, now seen corresponding path program 1 times [2024-11-09 04:39:10,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:39:10,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251435675] [2024-11-09 04:39:10,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:39:10,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:39:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:39:10,664 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 04:39:10,664 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:39:10,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251435675] [2024-11-09 04:39:10,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251435675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:39:10,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:39:10,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:39:10,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946832948] [2024-11-09 04:39:10,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:39:10,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:39:10,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:39:10,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:39:10,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:39:10,666 INFO L87 Difference]: Start difference. First operand 7238 states and 25740 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:10,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:39:10,819 INFO L93 Difference]: Finished difference Result 7238 states and 25740 transitions. [2024-11-09 04:39:10,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 04:39:10,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-11-09 04:39:10,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:39:10,849 INFO L225 Difference]: With dead ends: 7238 [2024-11-09 04:39:10,850 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:39:10,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:39:10,865 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 83 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:39:10,865 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 104 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:39:10,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:39:10,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:39:10,866 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 04:39:10,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:39:10,889 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2024-11-09 04:39:10,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:39:10,889 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:39:10,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:39:10,889 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:39:10,889 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:39:10,892 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-09 04:39:10,893 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-09 04:39:10,893 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-09 04:39:10,893 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-09 04:39:10,893 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 16 remaining) [2024-11-09 04:39:10,893 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 16 remaining) [2024-11-09 04:39:10,894 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-09 04:39:10,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-09 04:39:10,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-09 04:39:10,895 INFO L782 garLoopResultBuilder]: Registering result SAFE for location readerErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-09 04:39:10,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 04:39:10,898 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:39:10,903 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-09 04:39:10,903 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:39:10,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:39:10 BasicIcfg [2024-11-09 04:39:10,906 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:39:10,907 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:39:10,907 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:39:10,907 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:39:10,908 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:38:55" (3/4) ... [2024-11-09 04:39:10,909 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:39:10,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure reader [2024-11-09 04:39:10,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure writer [2024-11-09 04:39:10,916 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2024-11-09 04:39:10,917 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-09 04:39:10,917 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 04:39:10,917 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 04:39:10,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:39:10,991 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:39:10,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:39:10,992 INFO L158 Benchmark]: Toolchain (without parser) took 16816.44ms. Allocated memory was 157.3MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 113.6MB in the beginning and 8.3GB in the end (delta: -8.2GB). Peak memory consumption was 944.4MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,992 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:39:10,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 577.36ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 91.3MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,993 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.24ms. Allocated memory is still 157.3MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,993 INFO L158 Benchmark]: Boogie Preprocessor took 33.87ms. Allocated memory is still 157.3MB. Free memory was 89.2MB in the beginning and 87.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,994 INFO L158 Benchmark]: RCFGBuilder took 585.61ms. Allocated memory is still 157.3MB. Free memory was 87.8MB in the beginning and 64.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,994 INFO L158 Benchmark]: TraceAbstraction took 15462.11ms. Allocated memory was 157.3MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 64.0MB in the beginning and 8.3GB in the end (delta: -8.2GB). Peak memory consumption was 892.0MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,994 INFO L158 Benchmark]: Witness Printer took 84.85ms. Allocated memory is still 9.3GB. Free memory was 8.3GB in the beginning and 8.3GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:39:10,996 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 157.3MB. Free memory is still 128.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 577.36ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 91.3MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.24ms. Allocated memory is still 157.3MB. Free memory was 91.3MB in the beginning and 89.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.87ms. Allocated memory is still 157.3MB. Free memory was 89.2MB in the beginning and 87.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 585.61ms. Allocated memory is still 157.3MB. Free memory was 87.8MB in the beginning and 64.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 15462.11ms. Allocated memory was 157.3MB in the beginning and 9.3GB in the end (delta: 9.1GB). Free memory was 64.0MB in the beginning and 8.3GB in the end (delta: -8.2GB). Peak memory consumption was 892.0MB. Max. memory is 16.1GB. * Witness Printer took 84.85ms. Allocated memory is still 9.3GB. Free memory was 8.3GB in the beginning and 8.3GB 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: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 711]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 740]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 82 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 15.3s, OverallIterations: 10, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 5.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 853 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 853 mSDsluCounter, 830 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 549 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1279 IncrementalHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 281 mSDtfsCounter, 1279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27708occurred in iteration=1, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 5443 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 174 NumberOfCodeBlocks, 174 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 164 ConstructedInterpolants, 0 QuantifiedInterpolants, 460 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-09 04:39:11,027 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41427140-c6de-4ab4-b46c-44779ad9f9c8/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE