./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:50:15,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:50:15,256 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:50:15,260 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:50:15,261 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:50:15,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:50:15,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:50:15,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:50:15,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:50:15,284 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:50:15,285 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:50:15,285 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:50:15,286 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:50:15,286 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:50:15,287 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:50:15,287 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:50:15,287 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:50:15,288 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:50:15,288 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:50:15,289 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:50:15,289 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:50:15,290 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:50:15,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:50:15,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:50:15,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:50:15,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:50:15,292 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:50:15,293 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:50:15,293 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:50:15,294 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:50:15,294 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:50:15,295 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:50:15,295 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:50:15,295 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:50:15,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:50:15,296 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:50:15,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:50:15,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:50:15,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:50:15,298 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:50:15,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:50:15,299 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:50:15,299 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:50:15,300 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:50:15,300 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e [2024-11-09 06:50:15,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:50:15,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:50:15,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:50:15,612 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:50:15,612 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:50:15,614 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c Unable to find full path for "g++" [2024-11-09 06:50:17,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:50:17,793 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:50:17,794 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2024-11-09 06:50:17,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data/bf591eb7d/dc0f4a44a5904bedae0c3923de9eb8b7/FLAG2fbaf668a [2024-11-09 06:50:17,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data/bf591eb7d/dc0f4a44a5904bedae0c3923de9eb8b7 [2024-11-09 06:50:17,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:50:17,826 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:50:17,827 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:50:17,827 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:50:17,833 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:50:17,834 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:50:17" (1/1) ... [2024-11-09 06:50:17,835 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@641e49d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:17, skipping insertion in model container [2024-11-09 06:50:17,836 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:50:17" (1/1) ... [2024-11-09 06:50:17,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:50:18,047 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2024-11-09 06:50:18,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:50:18,126 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:50:18,139 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2024-11-09 06:50:18,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:50:18,224 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:50:18,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18 WrapperNode [2024-11-09 06:50:18,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:50:18,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:50:18,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:50:18,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:50:18,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,244 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,310 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 296 [2024-11-09 06:50:18,311 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:50:18,312 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:50:18,312 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:50:18,312 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:50:18,322 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,322 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,329 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,330 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,348 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,352 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,369 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:50:18,370 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:50:18,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:50:18,371 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:50:18,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (1/1) ... [2024-11-09 06:50:18,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:50:18,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:50:18,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:50:18,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:50:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:50:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:50:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:50:18,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:50:18,610 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:50:18,612 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:50:19,276 INFO L? ?]: Removed 168 outVars from TransFormulas that were not future-live. [2024-11-09 06:50:19,276 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:50:19,748 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:50:19,748 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:50:19,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:19 BoogieIcfgContainer [2024-11-09 06:50:19,749 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:50:19,751 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:50:19,751 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:50:19,755 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:50:19,755 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:50:17" (1/3) ... [2024-11-09 06:50:19,756 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e516c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:50:19, skipping insertion in model container [2024-11-09 06:50:19,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:18" (2/3) ... [2024-11-09 06:50:19,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e516c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:50:19, skipping insertion in model container [2024-11-09 06:50:19,757 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:19" (3/3) ... [2024-11-09 06:50:19,759 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2024-11-09 06:50:19,780 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:50:19,780 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:50:19,850 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:50:19,859 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b0680e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:50:19,859 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:50:19,864 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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) [2024-11-09 06:50:19,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:50:19,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:19,871 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:50:19,871 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:50:19,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:19,876 INFO L85 PathProgramCache]: Analyzing trace with hash 11447592, now seen corresponding path program 1 times [2024-11-09 06:50:19,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:50:19,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309862468] [2024-11-09 06:50:19,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:19,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:20,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:20,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:50:20,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309862468] [2024-11-09 06:50:20,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309862468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:20,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:20,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:50:20,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368504509] [2024-11-09 06:50:20,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:20,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:50:20,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:50:20,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:50:20,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:50:20,730 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 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) 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) [2024-11-09 06:50:20,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:50:20,932 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2024-11-09 06:50:20,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:50:20,937 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 [2024-11-09 06:50:20,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:50:20,944 INFO L225 Difference]: With dead ends: 15 [2024-11-09 06:50:20,945 INFO L226 Difference]: Without dead ends: 9 [2024-11-09 06:50:20,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:50:20,951 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:50:20,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 06:50:20,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-09 06:50:20,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2024-11-09 06:50:20,982 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) [2024-11-09 06:50:20,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-09 06:50:20,984 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2024-11-09 06:50:20,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:50:20,985 INFO L471 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2024-11-09 06:50:20,985 INFO L472 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) [2024-11-09 06:50:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-09 06:50:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:50:20,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:20,986 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2024-11-09 06:50:20,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:50:20,987 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:50:20,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1746478805, now seen corresponding path program 1 times [2024-11-09 06:50:20,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:50:20,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803907494] [2024-11-09 06:50:20,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:20,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:50:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:50:21,384 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:50:21,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:50:21,703 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:50:21,704 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:50:21,706 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:50:21,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:50:21,713 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 06:50:21,737 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:50:21,739 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:50:21,752 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:50:21,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:50:21 BoogieIcfgContainer [2024-11-09 06:50:21,758 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:50:21,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:50:21,759 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:50:21,759 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:50:21,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:19" (3/4) ... [2024-11-09 06:50:21,762 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:50:21,764 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:50:21,764 INFO L158 Benchmark]: Toolchain (without parser) took 3938.79ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 116.2MB in the beginning and 75.6MB in the end (delta: 40.6MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2024-11-09 06:50:21,765 INFO L158 Benchmark]: CDTParser took 1.17ms. Allocated memory is still 102.8MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:50:21,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.01ms. Allocated memory is still 146.8MB. Free memory was 115.8MB in the beginning and 99.4MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:50:21,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.10ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 92.3MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:50:21,767 INFO L158 Benchmark]: Boogie Preprocessor took 58.23ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 89.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:50:21,770 INFO L158 Benchmark]: RCFGBuilder took 1378.50ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 71.5MB in the end (delta: 17.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. [2024-11-09 06:50:21,771 INFO L158 Benchmark]: TraceAbstraction took 2007.11ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 70.6MB in the beginning and 75.6MB in the end (delta: -5.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2024-11-09 06:50:21,771 INFO L158 Benchmark]: Witness Printer took 5.24ms. Allocated memory is still 176.2MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:50:21,773 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17ms. Allocated memory is still 102.8MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.01ms. Allocated memory is still 146.8MB. Free memory was 115.8MB in the beginning and 99.4MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.10ms. Allocated memory is still 146.8MB. Free memory was 99.4MB in the beginning and 92.3MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.23ms. Allocated memory is still 146.8MB. Free memory was 92.3MB in the beginning and 89.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1378.50ms. Allocated memory is still 146.8MB. Free memory was 89.0MB in the beginning and 71.5MB in the end (delta: 17.5MB). Peak memory consumption was 33.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2007.11ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 70.6MB in the beginning and 75.6MB in the end (delta: -5.0MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Witness Printer took 5.24ms. Allocated memory is still 176.2MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 shiftRight at line 85, overapproximation of bitwiseOr at line 110, overapproximation of bitwiseAnd at line 66. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_28 mask_SORT_28 = (SORT_28)-1 >> (sizeof(SORT_28) * 8 - 32); [L33] const SORT_28 msb_SORT_28 = (SORT_28)1 << (32 - 1); [L35] const SORT_4 var_5 = 1; [L36] const SORT_4 var_8 = 0; [L37] const SORT_1 var_15 = 1; [L38] const SORT_4 var_22 = 15; [L39] const SORT_28 var_30 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L44] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 [L44] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] EXPR __VERIFIER_nondet_uchar() & mask_SORT_4 [L45] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_10_arg_1 = var_8; [L50] state_9 = init_10_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=15, state_6=1, state_9=0, var_15=1, var_22=15, var_30=1, var_5=1] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] EXPR var_17_arg_0 & var_17_arg_1 [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] EXPR var_17 & mask_SORT_1 [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] EXPR var_39_arg_0 & var_39_arg_1 [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] EXPR var_39 & mask_SORT_1 [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] EXPR var_29_arg_0 & mask_SORT_4 [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] EXPR var_31_arg_0 >> var_31_arg_1 [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] EXPR var_33_arg_0 & mask_SORT_4 [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] EXPR var_34_arg_0 >> var_34_arg_1 [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] EXPR var_24_arg_0 | var_24_arg_1 [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] EXPR var_24 & mask_SORT_1 [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] EXPR var_40 & mask_SORT_4 [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] EXPR var_50_arg_0 & var_50_arg_1 [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] EXPR var_50 & mask_SORT_1 [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] EXPR var_46_arg_0 | var_46_arg_1 [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] EXPR var_46 & mask_SORT_1 [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] EXPR var_51 & mask_SORT_4 [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] EXPR var_17_arg_0 & var_17_arg_1 [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] EXPR var_17 & mask_SORT_1 [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 2 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2024-11-09 06:50:21,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:50:24,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:50:24,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-09 06:50:24,381 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:50:24,382 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:50:24,406 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:50:24,407 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:50:24,408 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:50:24,408 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:50:24,408 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:50:24,409 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:50:24,409 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:50:24,410 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:50:24,412 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:50:24,412 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:50:24,413 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:50:24,413 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:50:24,414 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:50:24,414 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:50:24,414 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:50:24,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:50:24,425 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:50:24,425 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:50:24,425 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:50:24,426 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:50:24,426 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:50:24,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:50:24,426 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:50:24,426 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:50:24,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:50:24,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:50:24,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:50:24,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:50:24,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:50:24,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:50:24,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:50:24,428 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:50:24,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:50:24,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:50:24,429 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:50:24,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 927306cfdb34082f032dbe87a24c6d688e2dda4e8fb165835d54bffc8f03e27e [2024-11-09 06:50:24,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:50:24,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:50:24,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:50:24,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:50:24,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:50:24,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c Unable to find full path for "g++" [2024-11-09 06:50:27,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:50:27,229 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:50:27,230 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2024-11-09 06:50:27,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data/6e9f29b64/1c43c19f717a450e844a8f0178a5f3be/FLAGc3b8f262e [2024-11-09 06:50:27,257 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/data/6e9f29b64/1c43c19f717a450e844a8f0178a5f3be [2024-11-09 06:50:27,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:50:27,260 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:50:27,262 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:50:27,262 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:50:27,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:50:27,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c6bc57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27, skipping insertion in model container [2024-11-09 06:50:27,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,300 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:50:27,509 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2024-11-09 06:50:27,581 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:50:27,604 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:50:27,619 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1250,1263] [2024-11-09 06:50:27,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:50:27,714 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:50:27,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27 WrapperNode [2024-11-09 06:50:27,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:50:27,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:50:27,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:50:27,717 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:50:27,725 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,736 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,771 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 156 [2024-11-09 06:50:27,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:50:27,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:50:27,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:50:27,776 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:50:27,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,810 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,817 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,827 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:50:27,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:50:27,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:50:27,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:50:27,832 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (1/1) ... [2024-11-09 06:50:27,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:50:27,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:50:27,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:50:27,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:50:27,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:50:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:50:27,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:50:27,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:50:28,042 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:50:28,044 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:50:28,317 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-09 06:50:28,317 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:50:28,333 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:50:28,334 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:50:28,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:28 BoogieIcfgContainer [2024-11-09 06:50:28,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:50:28,337 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:50:28,337 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:50:28,341 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:50:28,341 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:50:27" (1/3) ... [2024-11-09 06:50:28,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7737b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:50:28, skipping insertion in model container [2024-11-09 06:50:28,342 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:50:27" (2/3) ... [2024-11-09 06:50:28,342 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a7737b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:50:28, skipping insertion in model container [2024-11-09 06:50:28,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:28" (3/3) ... [2024-11-09 06:50:28,346 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2024-11-09 06:50:28,362 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:50:28,363 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:50:28,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:50:28,444 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@23081fd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:50:28,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:50:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) [2024-11-09 06:50:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 06:50:28,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:28,457 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 06:50:28,457 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:50:28,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2024-11-09 06:50:28,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:50:28,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [731694735] [2024-11-09 06:50:28,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:28,482 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 [2024-11-09 06:50:28,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:50:28,485 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:50:28,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:50:28,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:28,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:50:28,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:28,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:28,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:50:28,933 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:50:28,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [731694735] [2024-11-09 06:50:28,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [731694735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:50:28,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:50:28,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:50:28,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868066266] [2024-11-09 06:50:28,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:50:28,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:50:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:50:28,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:50:28,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:50:28,985 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 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) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:50:29,053 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2024-11-09 06:50:29,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:50:29,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2024-11-09 06:50:29,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:50:29,064 INFO L225 Difference]: With dead ends: 19 [2024-11-09 06:50:29,064 INFO L226 Difference]: Without dead ends: 10 [2024-11-09 06:50:29,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:50:29,074 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:50:29,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:50:29,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-09 06:50:29,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-09 06:50:29,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:29,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-09 06:50:29,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-09 06:50:29,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:50:29,108 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-09 06:50:29,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:29,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-09 06:50:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 06:50:29,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:29,114 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 06:50:29,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:50:29,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:50:29,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:50:29,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:29,317 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2024-11-09 06:50:29,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:50:29,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1731608656] [2024-11-09 06:50:29,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:29,319 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 [2024-11-09 06:50:29,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:50:29,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:50:29,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:50:29,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:29,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:50:29,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:29,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:29,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:50:35,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:35,976 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:50:35,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1731608656] [2024-11-09 06:50:35,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1731608656] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:50:35,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [306222902] [2024-11-09 06:50:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:35,978 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:50:35,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:50:35,982 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:50:35,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-09 06:50:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:36,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 06:50:36,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:36,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:36,345 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:50:40,008 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:40,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [306222902] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:50:40,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095175340] [2024-11-09 06:50:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:50:40,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:50:40,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:50:40,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:50:40,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 06:50:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:50:40,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-09 06:50:40,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:40,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:40,435 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:50:44,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:44,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095175340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:50:44,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:50:44,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 13 [2024-11-09 06:50:44,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340156206] [2024-11-09 06:50:44,342 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:50:44,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 06:50:44,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:50:44,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 06:50:44,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-09 06:50:44,345 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:44,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:50:44,886 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2024-11-09 06:50:44,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 06:50:44,888 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 06:50:44,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:50:44,888 INFO L225 Difference]: With dead ends: 18 [2024-11-09 06:50:44,888 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 06:50:44,889 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2024-11-09 06:50:44,890 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:50:44,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 25 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:50:44,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 06:50:44,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2024-11-09 06:50:44,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:44,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2024-11-09 06:50:44,901 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2024-11-09 06:50:44,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:50:44,902 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2024-11-09 06:50:44,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 13 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:50:44,902 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2024-11-09 06:50:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-09 06:50:44,903 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:50:44,903 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2024-11-09 06:50:44,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-09 06:50:45,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 06:50:45,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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)] Forceful destruction successful, exit code 0 [2024-11-09 06:50:45,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:50:45,504 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:50:45,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:50:45,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2024-11-09 06:50:45,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:50:45,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [44825080] [2024-11-09 06:50:45,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:50:45,507 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 [2024-11-09 06:50:45,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:50:45,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:50:45,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 (6)] Waiting until timeout for monitored process [2024-11-09 06:50:45,646 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:50:45,646 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:50:45,655 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 06:50:45,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:50:47,689 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:50:47,689 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:52:26,414 WARN L286 SmtUtils]: Spent 23.52s on a formula simplification. DAG size of input: 1602 DAG size of output: 1470 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:52:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:53,620 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:52:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [44825080] [2024-11-09 06:52:53,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [44825080] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:52:53,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1907210962] [2024-11-09 06:52:53,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:52:53,621 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-09 06:52:53,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 [2024-11-09 06:52:53,622 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-09 06:52:53,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-09 06:52:53,826 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:52:53,826 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:52:53,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-09 06:52:53,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:52:55,213 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:52:55,213 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:54:30,765 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:54:30,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1907210962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:54:30,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613596471] [2024-11-09 06:54:30,766 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 06:54:30,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:54:30,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:54:30,768 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:54:30,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 06:54:30,900 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 06:54:30,900 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 06:54:30,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-09 06:54:30,908 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:54:32,606 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:54:32,606 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 06:56:24,104 WARN L286 SmtUtils]: Spent 27.65s on a formula simplification. DAG size of input: 1622 DAG size of output: 1515 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:56:55,287 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:56:55,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613596471] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 06:56:55,288 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2024-11-09 06:56:55,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 9, 9] total 20 [2024-11-09 06:56:55,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882606507] [2024-11-09 06:56:55,288 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2024-11-09 06:56:55,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 06:56:55,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:56:55,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 06:56:55,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-09 06:56:55,291 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:03,176 WARN L286 SmtUtils]: Spent 7.36s on a formula simplification. DAG size of input: 1630 DAG size of output: 947 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:57:10,790 WARN L286 SmtUtils]: Spent 7.27s on a formula simplification. DAG size of input: 1632 DAG size of output: 949 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 06:57:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:57:14,993 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2024-11-09 06:57:14,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 06:57:14,994 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-09 06:57:14,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:57:14,995 INFO L225 Difference]: With dead ends: 30 [2024-11-09 06:57:14,995 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 06:57:14,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 55 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 79.9s TimeCoverageRelationStatistics Valid=256, Invalid=614, Unknown=0, NotChecked=0, Total=870 [2024-11-09 06:57:14,997 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 06:57:14,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 28 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 06:57:14,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 06:57:15,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-11-09 06:57:15,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:15,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-11-09 06:57:15,013 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2024-11-09 06:57:15,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:57:15,014 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-11-09 06:57:15,014 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.2) internal successors, (44), 20 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:57:15,014 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-11-09 06:57:15,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 06:57:15,015 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:57:15,015 INFO L215 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2024-11-09 06:57:15,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 06:57:15,218 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 (6)] Ended with exit code 0 [2024-11-09 06:57:15,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-09 06:57:15,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/cvc4 --incremental --print-success --lang smt [2024-11-09 06:57:15,616 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:57:15,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:57:15,617 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2024-11-09 06:57:15,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:57:15,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982346075] [2024-11-09 06:57:15,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 06:57:15,618 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 [2024-11-09 06:57:15,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:57:15,621 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:57:15,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 (9)] Waiting until timeout for monitored process [2024-11-09 06:57:15,882 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 06:57:15,883 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-09 06:57:15,883 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:57:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:57:16,207 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:57:16,207 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:57:16,208 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:57:16,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 (9)] Forceful destruction successful, exit code 0 [2024-11-09 06:57:16,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:57:16,413 INFO L407 BasicCegarLoop]: Path program histogram: [3, 1] [2024-11-09 06:57:16,461 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,461 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,461 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,461 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,461 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,461 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,462 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,462 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,499 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:57:16,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:57:16 BoogieIcfgContainer [2024-11-09 06:57:16,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:57:16,503 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:57:16,503 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:57:16,503 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:57:16,504 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:50:28" (3/4) ... [2024-11-09 06:57:16,504 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 06:57:16,515 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,515 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,515 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,515 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,515 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,516 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,516 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,516 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:57:16,647 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:57:16,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:57:16,648 INFO L158 Benchmark]: Toolchain (without parser) took 409387.90ms. Allocated memory was 67.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 39.1MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 780.8MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,649 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:57:16,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.83ms. Allocated memory is still 67.1MB. Free memory was 39.0MB in the beginning and 40.1MB in the end (delta: -1.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.89ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 37.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,649 INFO L158 Benchmark]: Boogie Preprocessor took 54.54ms. Allocated memory is still 67.1MB. Free memory was 37.8MB in the beginning and 36.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,650 INFO L158 Benchmark]: RCFGBuilder took 503.60ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 35.9MB in the beginning and 53.4MB in the end (delta: -17.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,651 INFO L158 Benchmark]: TraceAbstraction took 408165.12ms. Allocated memory was 88.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 52.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 756.3MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,651 INFO L158 Benchmark]: Witness Printer took 145.02ms. Allocated memory is still 2.1GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 06:57:16,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 67.1MB. Free memory was 43.1MB in the beginning and 43.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.83ms. Allocated memory is still 67.1MB. Free memory was 39.0MB in the beginning and 40.1MB in the end (delta: -1.1MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.89ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 37.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.54ms. Allocated memory is still 67.1MB. Free memory was 37.8MB in the beginning and 36.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 503.60ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 35.9MB in the beginning and 53.4MB in the end (delta: -17.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 408165.12ms. Allocated memory was 88.1MB in the beginning and 2.1GB in the end (delta: 2.0GB). Free memory was 52.7MB in the beginning and 1.3GB in the end (delta: -1.2GB). Peak memory consumption was 756.3MB. Max. memory is 16.1GB. * Witness Printer took 145.02ms. Allocated memory is still 2.1GB. Free memory was 1.3GB in the beginning and 1.3GB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 21]: a call to reach_error is reachable a call to reach_error is reachable We found a 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L30] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L32] const SORT_28 mask_SORT_28 = (SORT_28)-1 >> (sizeof(SORT_28) * 8 - 32); [L33] const SORT_28 msb_SORT_28 = (SORT_28)1 << (32 - 1); [L35] const SORT_4 var_5 = 1; [L36] const SORT_4 var_8 = 0; [L37] const SORT_1 var_15 = 1; [L38] const SORT_4 var_22 = 15; [L39] const SORT_28 var_30 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L44] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L47] SORT_4 init_7_arg_1 = var_5; [L48] state_6 = init_7_arg_1 [L49] SORT_4 init_10_arg_1 = var_8; [L50] state_9 = init_10_arg_1 VAL [mask_SORT_1=1, mask_SORT_4=15, state_6=1, state_9=0, var_15=1, var_22=15, var_30=1, var_5=1] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND FALSE !(!(cond)) [L69] RET __VERIFIER_assert(!(bad_18_arg_0)) [L71] SORT_1 var_37_arg_0 = input_3; [L72] SORT_1 var_37 = ~var_37_arg_0; [L73] SORT_4 var_38_arg_0 = state_6; [L74] SORT_4 var_38_arg_1 = state_9; [L75] SORT_1 var_38 = var_38_arg_0 > var_38_arg_1; [L76] SORT_1 var_39_arg_0 = var_37; [L77] SORT_1 var_39_arg_1 = var_38; [L78] SORT_1 var_39 = var_39_arg_0 & var_39_arg_1; [L79] var_39 = var_39 & mask_SORT_1 [L80] SORT_4 var_29_arg_0 = var_22; [L81] var_29_arg_0 = var_29_arg_0 & mask_SORT_4 [L82] SORT_28 var_29 = var_29_arg_0; [L83] SORT_28 var_31_arg_0 = var_29; [L84] SORT_28 var_31_arg_1 = var_30; [L85] SORT_28 var_31 = var_31_arg_0 >> var_31_arg_1; [L86] SORT_28 var_32_arg_0 = var_31; [L87] SORT_4 var_32 = var_32_arg_0 >> 0; [L88] SORT_4 var_33_arg_0 = state_6; [L89] var_33_arg_0 = var_33_arg_0 & mask_SORT_4 [L90] SORT_28 var_33 = var_33_arg_0; [L91] SORT_28 var_34_arg_0 = var_33; [L92] SORT_28 var_34_arg_1 = var_30; [L93] SORT_28 var_34 = var_34_arg_0 >> var_34_arg_1; [L94] SORT_28 var_35_arg_0 = var_34; [L95] SORT_4 var_35 = var_35_arg_0 >> 0; [L96] SORT_4 var_36_arg_0 = var_32; [L97] SORT_4 var_36_arg_1 = var_35; [L98] SORT_4 var_36 = var_36_arg_0 + var_36_arg_1; [L99] SORT_4 var_26_arg_0 = state_6; [L100] SORT_4 var_26_arg_1 = state_9; [L101] SORT_1 var_26 = var_26_arg_0 < var_26_arg_1; [L102] SORT_4 var_21_arg_0 = state_9; [L103] SORT_4 var_21_arg_1 = state_6; [L104] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L105] SORT_4 var_23_arg_0 = state_6; [L106] SORT_4 var_23_arg_1 = var_22; [L107] SORT_1 var_23 = var_23_arg_0 != var_23_arg_1; [L108] SORT_1 var_24_arg_0 = var_21; [L109] SORT_1 var_24_arg_1 = var_23; [L110] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L111] var_24 = var_24 & mask_SORT_1 [L112] SORT_4 var_20_arg_0 = state_6; [L113] SORT_4 var_20_arg_1 = var_5; [L114] SORT_4 var_20 = var_20_arg_0 + var_20_arg_1; [L115] SORT_1 var_25_arg_0 = var_24; [L116] SORT_4 var_25_arg_1 = var_20; [L117] SORT_4 var_25_arg_2 = state_9; [L118] SORT_4 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L119] SORT_1 var_27_arg_0 = var_26; [L120] SORT_4 var_27_arg_1 = state_6; [L121] SORT_4 var_27_arg_2 = var_25; [L122] SORT_4 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L123] SORT_1 var_40_arg_0 = var_39; [L124] SORT_4 var_40_arg_1 = var_36; [L125] SORT_4 var_40_arg_2 = var_27; [L126] SORT_4 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L127] var_40 = var_40 & mask_SORT_4 [L128] SORT_4 next_41_arg_1 = var_40; [L129] SORT_1 var_48_arg_0 = input_3; [L130] SORT_1 var_48 = ~var_48_arg_0; [L131] SORT_4 var_49_arg_0 = state_6; [L132] SORT_4 var_49_arg_1 = state_9; [L133] SORT_1 var_49 = var_49_arg_0 > var_49_arg_1; [L134] SORT_1 var_50_arg_0 = var_48; [L135] SORT_1 var_50_arg_1 = var_49; [L136] SORT_1 var_50 = var_50_arg_0 & var_50_arg_1; [L137] var_50 = var_50 & mask_SORT_1 [L138] SORT_4 var_43_arg_0 = state_6; [L139] SORT_4 var_43_arg_1 = state_9; [L140] SORT_1 var_43 = var_43_arg_0 > var_43_arg_1; [L141] SORT_1 var_44_arg_0 = var_43; [L142] SORT_1 var_44 = ~var_44_arg_0; [L143] SORT_4 var_45_arg_0 = state_6; [L144] SORT_4 var_45_arg_1 = var_22; [L145] SORT_1 var_45 = var_45_arg_0 != var_45_arg_1; [L146] SORT_1 var_46_arg_0 = var_44; [L147] SORT_1 var_46_arg_1 = var_45; [L148] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L149] var_46 = var_46 & mask_SORT_1 [L150] SORT_4 var_42_arg_0 = state_9; [L151] SORT_4 var_42_arg_1 = var_5; [L152] SORT_4 var_42 = var_42_arg_0 + var_42_arg_1; [L153] SORT_1 var_47_arg_0 = var_46; [L154] SORT_4 var_47_arg_1 = var_42; [L155] SORT_4 var_47_arg_2 = state_6; [L156] SORT_4 var_47 = var_47_arg_0 ? var_47_arg_1 : var_47_arg_2; [L157] SORT_1 var_51_arg_0 = var_50; [L158] SORT_4 var_51_arg_1 = state_9; [L159] SORT_4 var_51_arg_2 = var_47; [L160] SORT_4 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L161] var_51 = var_51 & mask_SORT_4 [L162] SORT_4 next_52_arg_1 = var_51; [L164] state_6 = next_41_arg_1 [L165] state_9 = next_52_arg_1 [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_3 = __VERIFIER_nondet_uchar() [L57] SORT_4 var_11_arg_0 = state_6; [L58] SORT_4 var_11_arg_1 = state_9; [L59] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L60] SORT_1 var_12_arg_0 = var_11; [L61] SORT_1 var_12 = ~var_12_arg_0; [L62] SORT_1 var_16_arg_0 = var_12; [L63] SORT_1 var_16 = ~var_16_arg_0; [L64] SORT_1 var_17_arg_0 = var_15; [L65] SORT_1 var_17_arg_1 = var_16; [L66] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L67] var_17 = var_17 & mask_SORT_1 [L68] SORT_1 bad_18_arg_0 = var_17; [L69] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 408.0s, OverallIterations: 4, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 20.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 18 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 138 IncrementalHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 12 mSDtfsCounter, 138 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 85 SyntacticMatches, 8 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 81.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=3, InterpolantAutomatonStates: 28, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 384.3s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 124 ConstructedInterpolants, 43 QuantifiedInterpolants, 466160 SizeOfPredicates, 58 NumberOfNonLiveVariables, 486 ConjunctsInSsa, 195 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-09 06:57:16,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acaf968f-6ec9-4735-bccc-4f71a0498fc6/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE