./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b705ca0c5b5371dfb056caad606a25fce2d2b74615677865ff593635c093e46 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:37:55,205 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:37:55,265 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-28 20:37:55,269 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:37:55,269 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:37:55,294 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:37:55,295 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:37:55,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:37:55,296 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:37:55,297 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:37:55,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:37:55,298 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:37:55,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:37:55,299 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:37:55,299 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:37:55,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:37:55,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:37:55,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:37:55,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:37:55,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:37:55,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:37:55,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:37:55,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:37:55,304 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:37:55,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:37:55,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:37:55,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:37:55,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:37:55,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:37:55,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:37:55,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:37:55,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:37:55,308 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:37:55,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:37:55,308 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:37:55,308 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:37:55,309 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:37:55,309 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:37:55,309 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:37:55,309 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b705ca0c5b5371dfb056caad606a25fce2d2b74615677865ff593635c093e46 [2023-11-28 20:37:55,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:37:55,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:37:55,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:37:55,523 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:37:55,524 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:37:55,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c [2023-11-28 20:37:58,257 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:37:58,445 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:37:58,445 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c [2023-11-28 20:37:58,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data/de327227b/e8b4d2db4999412b9206ec8f76101207/FLAGc64c2cfca [2023-11-28 20:37:58,467 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data/de327227b/e8b4d2db4999412b9206ec8f76101207 [2023-11-28 20:37:58,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:37:58,470 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:37:58,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:37:58,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:37:58,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:37:58,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:58,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5328da61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58, skipping insertion in model container [2023-11-28 20:37:58,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:58,520 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:37:58,671 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c[1266,1279] [2023-11-28 20:37:58,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:37:58,784 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:37:58,796 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c[1266,1279] [2023-11-28 20:37:58,861 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:37:58,874 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:37:58,875 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58 WrapperNode [2023-11-28 20:37:58,875 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:37:58,876 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:37:58,876 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:37:58,877 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:37:58,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:58,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:58,985 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 745 [2023-11-28 20:37:58,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:37:58,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:37:58,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:37:58,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:37:58,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:58,995 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,041 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 20:37:59,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,042 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,062 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,069 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,091 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:37:59,102 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:37:59,102 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:37:59,102 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:37:59,103 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (1/1) ... [2023-11-28 20:37:59,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:37:59,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:37:59,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:37:59,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:37:59,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:37:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 20:37:59,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:37:59,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:37:59,348 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:37:59,350 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:37:59,934 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:37:59,968 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:37:59,968 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:37:59,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:59 BoogieIcfgContainer [2023-11-28 20:37:59,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:37:59,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:37:59,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:37:59,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:37:59,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:37:58" (1/3) ... [2023-11-28 20:37:59,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60caa9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:37:59, skipping insertion in model container [2023-11-28 20:37:59,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:37:58" (2/3) ... [2023-11-28 20:37:59,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60caa9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:37:59, skipping insertion in model container [2023-11-28 20:37:59,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:59" (3/3) ... [2023-11-28 20:37:59,977 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c [2023-11-28 20:37:59,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:37:59,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:38:00,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:38:00,044 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@4fa8319b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:38:00,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:38:00,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 96 states have (on average 1.6666666666666667) internal successors, (160), 97 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:00,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-28 20:38:00,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:00,056 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:00,056 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:00,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:00,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2035936997, now seen corresponding path program 1 times [2023-11-28 20:38:00,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:00,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728656716] [2023-11-28 20:38:00,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:00,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:00,702 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:00,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:00,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728656716] [2023-11-28 20:38:00,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728656716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:00,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:00,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:38:00,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726329353] [2023-11-28 20:38:00,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:00,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:38:00,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:00,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:38:00,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:38:00,742 INFO L87 Difference]: Start difference. First operand has 98 states, 96 states have (on average 1.6666666666666667) internal successors, (160), 97 states have internal predecessors, (160), 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 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:00,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:00,836 INFO L93 Difference]: Finished difference Result 161 states and 266 transitions. [2023-11-28 20:38:00,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:38:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2023-11-28 20:38:00,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:00,848 INFO L225 Difference]: With dead ends: 161 [2023-11-28 20:38:00,848 INFO L226 Difference]: Without dead ends: 100 [2023-11-28 20:38:00,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:38:00,855 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 219 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:00,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 208 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:38:00,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2023-11-28 20:38:00,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 96. [2023-11-28 20:38:00,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.6210526315789473) internal successors, (154), 95 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:00,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 154 transitions. [2023-11-28 20:38:00,895 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 154 transitions. Word has length 34 [2023-11-28 20:38:00,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:00,896 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 154 transitions. [2023-11-28 20:38:00,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 154 transitions. [2023-11-28 20:38:00,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-28 20:38:00,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:00,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:00,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 20:38:00,898 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:00,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:00,899 INFO L85 PathProgramCache]: Analyzing trace with hash 404245095, now seen corresponding path program 1 times [2023-11-28 20:38:00,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:00,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168681186] [2023-11-28 20:38:00,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:00,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:00,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:01,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 20:38:01,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168681186] [2023-11-28 20:38:01,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168681186] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:01,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:01,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:38:01,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300292088] [2023-11-28 20:38:01,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:01,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:38:01,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 20:38:01,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:38:01,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:38:01,165 INFO L87 Difference]: Start difference. First operand 96 states and 154 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:01,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:01,195 INFO L93 Difference]: Finished difference Result 100 states and 158 transitions. [2023-11-28 20:38:01,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:38:01,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 35 [2023-11-28 20:38:01,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:01,197 INFO L225 Difference]: With dead ends: 100 [2023-11-28 20:38:01,198 INFO L226 Difference]: Without dead ends: 98 [2023-11-28 20:38:01,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:38:01,200 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 1 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:01,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 448 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-28 20:38:01,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-11-28 20:38:01,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2023-11-28 20:38:01,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.6082474226804124) internal successors, (156), 97 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 156 transitions. [2023-11-28 20:38:01,212 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 156 transitions. Word has length 35 [2023-11-28 20:38:01,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:01,213 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 156 transitions. [2023-11-28 20:38:01,213 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:01,213 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 156 transitions. [2023-11-28 20:38:01,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-28 20:38:01,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:01,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:38:01,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-28 20:38:01,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:01,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:01,216 INFO L85 PathProgramCache]: Analyzing trace with hash -351578815, now seen corresponding path program 1 times [2023-11-28 20:38:01,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 20:38:01,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490195421] [2023-11-28 20:38:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:01,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 20:38:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:38:01,265 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-28 20:38:01,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-28 20:38:01,330 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-28 20:38:01,330 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-28 20:38:01,332 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:38:01,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 20:38:01,337 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-28 20:38:01,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:38:01,374 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-28 20:38:01,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-28 20:38:01,375 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-28 20:38:01,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-28 20:38:01,376 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-28 20:38:01,377 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-28 20:38:01,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-28 20:38:01,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-28 20:38:01,378 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-28 20:38:01,379 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated [2023-11-28 20:38:01,379 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-28 20:38:01,380 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated [2023-11-28 20:38:01,380 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated [2023-11-28 20:38:01,381 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated [2023-11-28 20:38:01,382 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated [2023-11-28 20:38:01,382 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated [2023-11-28 20:38:01,383 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-28 20:38:01,383 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-28 20:38:01,384 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-28 20:38:01,384 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-28 20:38:01,385 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated [2023-11-28 20:38:01,385 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated [2023-11-28 20:38:01,386 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated [2023-11-28 20:38:01,386 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated [2023-11-28 20:38:01,389 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet56 could not be translated [2023-11-28 20:38:01,392 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet57 could not be translated [2023-11-28 20:38:01,393 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated [2023-11-28 20:38:01,394 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-28 20:38:01,409 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:38:01 BoogieIcfgContainer [2023-11-28 20:38:01,409 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:38:01,410 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:38:01,410 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:38:01,410 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:38:01,411 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:37:59" (3/4) ... [2023-11-28 20:38:01,413 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-28 20:38:01,414 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:38:01,415 INFO L158 Benchmark]: Toolchain (without parser) took 2944.83ms. Allocated memory was 188.7MB in the beginning and 245.4MB in the end (delta: 56.6MB). Free memory was 153.2MB in the beginning and 151.5MB in the end (delta: 1.7MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2023-11-28 20:38:01,415 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:38:01,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 404.72ms. Allocated memory is still 188.7MB. Free memory was 153.2MB in the beginning and 132.8MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-28 20:38:01,416 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.10ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 119.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-28 20:38:01,417 INFO L158 Benchmark]: Boogie Preprocessor took 115.56ms. Allocated memory is still 188.7MB. Free memory was 119.6MB in the beginning and 111.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:38:01,417 INFO L158 Benchmark]: RCFGBuilder took 867.13ms. Allocated memory is still 188.7MB. Free memory was 111.1MB in the beginning and 95.8MB in the end (delta: 15.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2023-11-28 20:38:01,418 INFO L158 Benchmark]: TraceAbstraction took 1438.02ms. Allocated memory was 188.7MB in the beginning and 245.4MB in the end (delta: 56.6MB). Free memory was 94.9MB in the beginning and 151.5MB in the end (delta: -56.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:38:01,418 INFO L158 Benchmark]: Witness Printer took 4.45ms. Allocated memory is still 245.4MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:38:01,420 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 111.1MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 404.72ms. Allocated memory is still 188.7MB. Free memory was 153.2MB in the beginning and 132.8MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.10ms. Allocated memory is still 188.7MB. Free memory was 132.3MB in the beginning and 119.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.56ms. Allocated memory is still 188.7MB. Free memory was 119.6MB in the beginning and 111.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 867.13ms. Allocated memory is still 188.7MB. Free memory was 111.1MB in the beginning and 95.8MB in the end (delta: 15.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1438.02ms. Allocated memory was 188.7MB in the beginning and 245.4MB in the end (delta: 56.6MB). Free memory was 94.9MB in the beginning and 151.5MB in the end (delta: -56.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.45ms. Allocated memory is still 245.4MB. Free memory is still 151.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet14 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet25 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet24 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet26 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet56 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet58 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 161. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L32] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 10); [L33] const SORT_7 msb_SORT_7 = (SORT_7)1 << (10 - 1); [L35] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 2); [L36] const SORT_11 msb_SORT_11 = (SORT_11)1 << (2 - 1); [L38] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L39] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L41] const SORT_30 mask_SORT_30 = (SORT_30)-1 >> (sizeof(SORT_30) * 8 - 4); [L42] const SORT_30 msb_SORT_30 = (SORT_30)1 << (4 - 1); [L44] const SORT_7 var_8 = 0; [L45] const SORT_13 var_15 = 0; [L46] const SORT_1 var_19 = 1; [L47] const SORT_1 var_23 = 0; [L48] const SORT_13 var_74 = 1; [L49] const SORT_13 var_78 = 104; [L51] SORT_1 input_2; [L52] SORT_3 input_4; [L53] SORT_1 input_5; [L54] SORT_1 input_6; [L55] SORT_1 input_28; [L56] SORT_30 input_31; [L57] SORT_1 input_33; [L58] SORT_30 input_35; [L59] SORT_1 input_37; [L60] SORT_1 input_39; [L61] SORT_1 input_45; [L62] SORT_1 input_47; [L63] SORT_1 input_49; [L64] SORT_3 input_53; [L65] SORT_1 input_56; [L66] SORT_1 input_66; [L67] SORT_7 input_72; [L68] SORT_1 input_86; [L69] SORT_1 input_92; [L70] SORT_1 input_98; [L71] SORT_1 input_104; [L72] SORT_1 input_105; [L73] SORT_1 input_106; [L74] SORT_1 input_120; [L75] SORT_1 input_122; [L76] SORT_1 input_137; [L77] SORT_1 input_138; [L78] SORT_1 input_139; [L80] EXPR __VERIFIER_nondet_ushort() & mask_SORT_7 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L80] SORT_7 state_9 = __VERIFIER_nondet_ushort() & mask_SORT_7; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L81] SORT_1 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L82] SORT_1 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L83] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L84] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L85] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L86] SORT_1 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=0, state_58=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L87] SORT_1 state_60 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=0, state_58=0, state_60=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L88] SORT_1 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=0, state_58=0, state_60=0, state_62=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L89] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=0, state_58=0, state_60=0, state_62=0, state_64=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L90] SORT_1 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=0, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L91] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L93] SORT_7 init_10_arg_1 = var_8; [L94] state_9 = init_10_arg_1 [L95] SORT_1 init_25_arg_1 = var_23; [L96] state_24 = init_25_arg_1 [L97] SORT_1 init_27_arg_1 = var_23; [L98] state_26 = init_27_arg_1 [L99] SORT_1 init_42_arg_1 = var_23; [L100] state_41 = init_42_arg_1 [L101] SORT_1 init_44_arg_1 = var_23; [L102] state_43 = init_44_arg_1 [L103] SORT_1 init_52_arg_1 = var_19; [L104] state_51 = init_52_arg_1 [L105] SORT_1 init_59_arg_1 = var_23; [L106] state_58 = init_59_arg_1 [L107] SORT_1 init_61_arg_1 = var_23; [L108] state_60 = init_61_arg_1 [L109] SORT_1 init_63_arg_1 = var_23; [L110] state_62 = init_63_arg_1 [L111] SORT_1 init_65_arg_1 = var_23; [L112] state_64 = init_65_arg_1 [L113] SORT_1 init_69_arg_1 = var_23; [L114] state_68 = init_69_arg_1 [L115] SORT_1 init_71_arg_1 = var_23; [L116] state_70 = init_71_arg_1 VAL [init_10_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_70=0, state_9=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L119] input_2 = __VERIFIER_nondet_uchar() [L120] input_4 = __VERIFIER_nondet_uchar() [L121] input_5 = __VERIFIER_nondet_uchar() [L122] input_6 = __VERIFIER_nondet_uchar() [L123] input_28 = __VERIFIER_nondet_uchar() [L124] input_31 = __VERIFIER_nondet_uchar() [L125] input_33 = __VERIFIER_nondet_uchar() [L126] input_35 = __VERIFIER_nondet_uchar() [L127] input_37 = __VERIFIER_nondet_uchar() [L128] input_39 = __VERIFIER_nondet_uchar() [L129] input_45 = __VERIFIER_nondet_uchar() [L130] input_47 = __VERIFIER_nondet_uchar() [L131] input_49 = __VERIFIER_nondet_uchar() [L132] input_53 = __VERIFIER_nondet_uchar() [L133] input_56 = __VERIFIER_nondet_uchar() [L134] input_66 = __VERIFIER_nondet_uchar() [L135] input_72 = __VERIFIER_nondet_ushort() [L136] input_86 = __VERIFIER_nondet_uchar() [L137] input_92 = __VERIFIER_nondet_uchar() [L138] input_98 = __VERIFIER_nondet_uchar() [L139] input_104 = __VERIFIER_nondet_uchar() [L140] input_105 = __VERIFIER_nondet_uchar() [L141] input_106 = __VERIFIER_nondet_uchar() [L142] input_120 = __VERIFIER_nondet_uchar() [L143] input_122 = __VERIFIER_nondet_uchar() [L144] input_137 = __VERIFIER_nondet_uchar() [L145] input_138 = __VERIFIER_nondet_uchar() [L146] input_139 = __VERIFIER_nondet_uchar() [L149] SORT_7 var_12_arg_0 = state_9; [L150] SORT_11 var_12 = var_12_arg_0 >> 8; [L151] SORT_11 var_14_arg_0 = var_12; VAL [init_10_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_70=0, state_9=0, var_12=0, var_12_arg_0=0, var_14_arg_0=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L152] EXPR var_14_arg_0 & mask_SORT_11 VAL [init_10_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_70=0, state_9=0, var_12=0, var_12_arg_0=0, var_14_arg_0=0, var_15=0, var_19=1, var_23=0, var_74=1, var_78=104, var_8=0] [L152] var_14_arg_0 = var_14_arg_0 & mask_SORT_11 [L153] SORT_13 var_14 = var_14_arg_0; [L154] SORT_13 var_16_arg_0 = var_14; [L155] SORT_13 var_16_arg_1 = var_15; [L156] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L157] SORT_1 var_20_arg_0 = var_16; [L158] SORT_1 var_20 = ~var_20_arg_0; [L159] SORT_1 var_21_arg_0 = var_19; [L160] SORT_1 var_21_arg_1 = var_20; VAL [init_10_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_70=0, state_9=0, var_12=0, var_12_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_19=1, var_20=254, var_20_arg_0=1, var_21_arg_0=1, var_21_arg_1=254, var_23=0, var_74=1, var_78=104, var_8=0] [L161] EXPR var_21_arg_0 & var_21_arg_1 VAL [init_10_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_70=0, state_9=0, var_12=0, var_12_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_19=1, var_20=254, var_20_arg_0=1, var_21_arg_0=1, var_21_arg_1=254, var_23=0, var_74=1, var_78=104, var_8=0] [L161] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L162] EXPR var_21 & mask_SORT_1 VAL [init_10_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_52_arg_1=1, init_59_arg_1=0, init_61_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_69_arg_1=0, init_71_arg_1=0, mask_SORT_11=3, mask_SORT_13=4294967295, mask_SORT_1=1, mask_SORT_30=15, mask_SORT_3=255, mask_SORT_7=1023, msb_SORT_11=2, msb_SORT_13=2147483648, msb_SORT_1=1, msb_SORT_30=8, msb_SORT_3=128, msb_SORT_7=512, state_24=0, state_26=0, state_41=0, state_43=0, state_51=1, state_58=0, state_60=0, state_62=0, state_64=0, state_68=0, state_70=0, state_9=0, var_12=0, var_12_arg_0=0, var_14=0, var_14_arg_0=0, var_15=0, var_16=1, var_16_arg_0=0, var_16_arg_1=0, var_19=1, var_20=254, var_20_arg_0=1, var_21=1, var_21_arg_0=1, var_21_arg_1=254, var_23=0, var_74=1, var_78=104, var_8=0] [L162] var_21 = var_21 & mask_SORT_1 [L163] SORT_1 bad_22_arg_0 = var_21; [L164] CALL __VERIFIER_assert(!(bad_22_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 98 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 220 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 220 mSDsluCounter, 656 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 361 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 295 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 67 ConstructedInterpolants, 0 QuantifiedInterpolants, 139 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-28 20:38:01,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3b705ca0c5b5371dfb056caad606a25fce2d2b74615677865ff593635c093e46 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:38:03,371 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:38:03,446 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-28 20:38:03,452 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:38:03,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:38:03,479 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:38:03,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:38:03,481 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:38:03,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:38:03,482 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:38:03,482 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:38:03,483 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:38:03,483 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:38:03,484 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:38:03,484 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:38:03,485 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:38:03,485 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 20:38:03,486 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:38:03,486 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 20:38:03,487 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:38:03,487 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 20:38:03,488 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:38:03,489 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:38:03,489 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:38:03,490 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 20:38:03,490 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:38:03,491 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:38:03,491 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:38:03,492 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:38:03,492 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:38:03,492 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:38:03,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:38:03,493 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:38:03,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 20:38:03,494 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:38:03,494 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:38:03,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:38:03,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:38:03,495 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 20:38:03,495 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:38:03,495 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:38:03,495 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:38:03,495 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b705ca0c5b5371dfb056caad606a25fce2d2b74615677865ff593635c093e46 [2023-11-28 20:38:03,777 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:38:03,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:38:03,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:38:03,799 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:38:03,799 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:38:03,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c [2023-11-28 20:38:06,619 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:38:06,832 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:38:06,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c [2023-11-28 20:38:06,845 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data/99c6c9796/98a004d622ed45e18388cffec11b28b5/FLAG62543daac [2023-11-28 20:38:06,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/data/99c6c9796/98a004d622ed45e18388cffec11b28b5 [2023-11-28 20:38:06,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:38:06,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:38:06,866 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:38:06,866 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:38:06,871 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:38:06,872 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:38:06" (1/1) ... [2023-11-28 20:38:06,873 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506ded68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:06, skipping insertion in model container [2023-11-28 20:38:06,874 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:38:06" (1/1) ... [2023-11-28 20:38:06,914 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:38:07,068 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c[1266,1279] [2023-11-28 20:38:07,164 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:38:07,176 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:38:07,186 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c[1266,1279] [2023-11-28 20:38:07,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:38:07,255 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:38:07,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07 WrapperNode [2023-11-28 20:38:07,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:38:07,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:38:07,256 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:38:07,263 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:38:07,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,285 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,323 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 445 [2023-11-28 20:38:07,323 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:38:07,324 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:38:07,324 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:38:07,324 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:38:07,335 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,336 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,344 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,364 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-28 20:38:07,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,365 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,383 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,396 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:38:07,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:38:07,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:38:07,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:38:07,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (1/1) ... [2023-11-28 20:38:07,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:38:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:38:07,425 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:38:07,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:38:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:38:07,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:38:07,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:38:07,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:38:07,603 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:38:07,605 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:38:07,937 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:38:07,968 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:38:07,968 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-28 20:38:07,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:38:07 BoogieIcfgContainer [2023-11-28 20:38:07,969 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:38:07,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:38:07,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:38:07,974 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:38:07,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:38:06" (1/3) ... [2023-11-28 20:38:07,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c9e00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:38:07, skipping insertion in model container [2023-11-28 20:38:07,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:07" (2/3) ... [2023-11-28 20:38:07,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c9e00b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:38:07, skipping insertion in model container [2023-11-28 20:38:07,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:38:07" (3/3) ... [2023-11-28 20:38:07,976 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p03.c [2023-11-28 20:38:07,991 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:38:07,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-28 20:38:08,028 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:38:08,034 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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;@72724f76, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:38:08,034 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-28 20:38:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:08,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-28 20:38:08,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:08,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-28 20:38:08,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:08,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:08,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-28 20:38:08,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:08,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [403873407] [2023-11-28 20:38:08,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:08,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:08,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:08,061 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:08,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-28 20:38:08,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:08,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-28 20:38:08,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:08,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:08,483 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:38:08,484 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:08,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [403873407] [2023-11-28 20:38:08,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [403873407] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:08,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:08,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:38:08,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886246296] [2023-11-28 20:38:08,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:08,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:38:08,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:08,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:38:08,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:38:08,514 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:08,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:08,593 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-28 20:38:08,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:38:08,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-11-28 20:38:08,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:08,601 INFO L225 Difference]: With dead ends: 16 [2023-11-28 20:38:08,601 INFO L226 Difference]: Without dead ends: 9 [2023-11-28 20:38:08,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:38:08,606 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:08,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:38:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-28 20:38:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-28 20:38:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:08,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-28 20:38:08,630 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-28 20:38:08,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:08,630 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-28 20:38:08,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-28 20:38:08,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 20:38:08,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:08,631 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-28 20:38:08,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:38:08,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:08,832 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:08,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:08,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-28 20:38:08,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:08,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012114373] [2023-11-28 20:38:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:08,834 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:08,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:08,835 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:08,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-28 20:38:09,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:09,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-28 20:38:09,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:09,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:09,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:38:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:09,740 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:09,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012114373] [2023-11-28 20:38:09,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012114373] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:38:09,741 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:38:09,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-28 20:38:09,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4005639] [2023-11-28 20:38:09,741 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:38:09,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:38:09,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:09,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:38:09,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:38:09,744 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:09,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:09,883 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-28 20:38:09,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-28 20:38:09,884 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 7 [2023-11-28 20:38:09,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:09,884 INFO L225 Difference]: With dead ends: 14 [2023-11-28 20:38:09,885 INFO L226 Difference]: Without dead ends: 12 [2023-11-28 20:38:09,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:38:09,886 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:09,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:38:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-28 20:38:09,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-28 20:38:09,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:09,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-28 20:38:09,891 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-28 20:38:09,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:09,891 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-28 20:38:09,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:09,892 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-28 20:38:09,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:38:09,892 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:09,893 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-28 20:38:09,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-28 20:38:10,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:10,093 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:10,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:10,094 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-28 20:38:10,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:10,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274000717] [2023-11-28 20:38:10,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:38:10,096 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:10,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:10,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:10,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-28 20:38:10,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:38:10,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:38:10,529 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 46 conjunts are in the unsatisfiable core [2023-11-28 20:38:10,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:10,913 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:10,913 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:38:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:13,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:13,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274000717] [2023-11-28 20:38:13,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274000717] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:38:13,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:38:13,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2023-11-28 20:38:13,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591070925] [2023-11-28 20:38:13,564 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:38:13,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-28 20:38:13,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:13,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-28 20:38:13,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-28 20:38:13,566 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 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) [2023-11-28 20:38:13,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:13,747 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-28 20:38:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-28 20:38:13,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 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 10 [2023-11-28 20:38:13,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:13,749 INFO L225 Difference]: With dead ends: 17 [2023-11-28 20:38:13,749 INFO L226 Difference]: Without dead ends: 15 [2023-11-28 20:38:13,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:38:13,751 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:13,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:38:13,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-28 20:38:13,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-28 20:38:13,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:13,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-28 20:38:13,757 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-11-28 20:38:13,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:13,757 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-28 20:38:13,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.9) internal successors, (19), 9 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) [2023-11-28 20:38:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-28 20:38:13,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-28 20:38:13,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:13,758 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-11-28 20:38:13,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-28 20:38:13,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:13,959 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-28 20:38:13,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:13,960 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-11-28 20:38:13,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:13,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [369923229] [2023-11-28 20:38:13,961 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:38:13,962 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:13,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:13,963 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:13,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-28 20:38:14,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-28 20:38:14,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:38:14,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 67 conjunts are in the unsatisfiable core [2023-11-28 20:38:14,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:15,526 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-28 20:38:15,526 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:38:19,530 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-28 20:38:19,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:19,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [369923229] [2023-11-28 20:38:19,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [369923229] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:38:19,531 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:38:19,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2023-11-28 20:38:19,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444324740] [2023-11-28 20:38:19,531 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:38:19,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:38:19,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:19,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:38:19,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:38:19,532 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:19,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:19,718 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-28 20:38:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:38:19,721 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 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 13 [2023-11-28 20:38:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:19,721 INFO L225 Difference]: With dead ends: 14 [2023-11-28 20:38:19,721 INFO L226 Difference]: Without dead ends: 0 [2023-11-28 20:38:19,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2023-11-28 20:38:19,722 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:19,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 20:38:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-28 20:38:19,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-28 20:38:19,723 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) [2023-11-28 20:38:19,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-28 20:38:19,724 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-28 20:38:19,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:19,724 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-28 20:38:19,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:19,724 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-28 20:38:19,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-28 20:38:19,726 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-28 20:38:19,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-28 20:38:19,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:19,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-28 20:38:20,037 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-28 20:38:20,037 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-28 20:38:20,038 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-28 20:38:20,038 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-28 20:38:20,038 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-28 20:38:20,038 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-28 20:38:20,038 INFO L895 garLoopResultBuilder]: At program point L117-2(lines 117 385) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= (_ bv104 32) |ULTIMATE.start_main_~var_78~0#1|) (= (_ bv1023 16) |ULTIMATE.start_main_~mask_SORT_7~0#1|) (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_11~0#1|) (exists ((|ULTIMATE.start_main_~var_132_arg_1~0#1| (_ BitVec 8))) (= |ULTIMATE.start_main_~state_62~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_132_arg_1~0#1|))) (_ bv1 32))))) (= |ULTIMATE.start_main_~var_74~0#1| (_ bv1 32)) (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 32)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv3 32) ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 16) |ULTIMATE.start_main_~state_9~0#1|) (_ bv8 32))))))) (_ bv0 32)) (= (_ bv1 8) |ULTIMATE.start_main_~var_19~0#1|) (= (_ bv0 16) |ULTIMATE.start_main_~var_8~0#1|)) [2023-11-28 20:38:20,039 INFO L899 garLoopResultBuilder]: For program point L117-3(lines 117 385) no Hoare annotation was computed. [2023-11-28 20:38:20,042 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-28 20:38:20,044 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-28 20:38:20,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_132_arg_1~0#1 : bv8 :: ~state_62~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_132_arg_1~0#1)[7:0]), 1bv32)[7:0]) could not be translated [2023-11-28 20:38:20,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:38:20 BoogieIcfgContainer [2023-11-28 20:38:20,058 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-28 20:38:20,058 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-28 20:38:20,058 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-28 20:38:20,059 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-28 20:38:20,059 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:38:07" (3/4) ... [2023-11-28 20:38:20,061 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-28 20:38:20,073 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-28 20:38:20,074 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-28 20:38:20,075 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-28 20:38:20,076 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-28 20:38:20,202 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-28 20:38:20,203 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-28 20:38:20,203 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-28 20:38:20,204 INFO L158 Benchmark]: Toolchain (without parser) took 13338.83ms. Allocated memory was 67.1MB in the beginning and 318.8MB in the end (delta: 251.7MB). Free memory was 32.7MB in the beginning and 260.4MB in the end (delta: -227.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,204 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:38:20,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 389.62ms. Allocated memory is still 67.1MB. Free memory was 32.5MB in the beginning and 30.8MB in the end (delta: 1.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.99ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 30.8MB in the beginning and 71.5MB in the end (delta: -40.7MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,205 INFO L158 Benchmark]: Boogie Preprocessor took 72.21ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 67.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,205 INFO L158 Benchmark]: RCFGBuilder took 572.10ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 53.4MB in the end (delta: 13.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,206 INFO L158 Benchmark]: TraceAbstraction took 12086.59ms. Allocated memory was 96.5MB in the beginning and 318.8MB in the end (delta: 222.3MB). Free memory was 52.2MB in the beginning and 269.8MB in the end (delta: -217.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,206 INFO L158 Benchmark]: Witness Printer took 144.74ms. Allocated memory is still 318.8MB. Free memory was 269.8MB in the beginning and 260.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-28 20:38:20,208 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 67.1MB. Free memory is still 42.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 389.62ms. Allocated memory is still 67.1MB. Free memory was 32.5MB in the beginning and 30.8MB in the end (delta: 1.7MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.99ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 30.8MB in the beginning and 71.5MB in the end (delta: -40.7MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.21ms. Allocated memory is still 96.5MB. Free memory was 71.5MB in the beginning and 67.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 572.10ms. Allocated memory is still 96.5MB. Free memory was 67.3MB in the beginning and 53.4MB in the end (delta: 13.9MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 12086.59ms. Allocated memory was 96.5MB in the beginning and 318.8MB in the end (delta: 222.3MB). Free memory was 52.2MB in the beginning and 269.8MB in the end (delta: -217.6MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 144.74ms. Allocated memory is still 318.8MB. Free memory was 269.8MB in the beginning and 260.4MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_132_arg_1~0#1 : bv8 :: ~state_62~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_132_arg_1~0#1)[7:0]), 1bv32)[7:0]) could not be translated * 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: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.0s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 6 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 5 NumberOfFragments, 47 HoareAnnotationTreeSize, 1 FomulaSimplifications, 36 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 171 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 34 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 57 ConstructedInterpolants, 25 QuantifiedInterpolants, 10885 SizeOfPredicates, 154 NumberOfNonLiveVariables, 1384 ConjunctsInSsa, 163 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 8/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: (((((((((1 == mask_SORT_1) && (104 == var_78)) && (1023 == mask_SORT_7)) && (3 == mask_SORT_11)) && (var_74 == 1)) && (var_15 == 0)) && (((3 & ((state_9 >> 8) & 127)) & 127) == 0)) && (1 == var_19)) && (0 == var_8)) RESULT: Ultimate proved your program to be correct! [2023-11-28 20:38:20,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_223258cf-17f3-45b0-bbb0-f86d677c00f8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE