./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX --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 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:09:35,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:09:35,540 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:09:35,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:09:35,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:09:35,578 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:09:35,579 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:09:35,579 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:09:35,580 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:09:35,581 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:09:35,582 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:09:35,582 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:09:35,583 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:09:35,583 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:09:35,584 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:09:35,585 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:09:35,589 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:09:35,593 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:09:35,593 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:09:35,594 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:09:35,595 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:09:35,597 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:09:35,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:09:35,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:09:35,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:09:35,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:09:35,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:09:35,600 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:09:35,600 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:09:35,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:09:35,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:09:35,602 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:09:35,602 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:09:35,603 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:35,603 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:09:35,604 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:09:35,604 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:09:35,604 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:09:35,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:09:35,605 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:09:35,606 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:09:35,608 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:09:35,608 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_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 [2023-11-12 00:09:35,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:09:35,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:09:35,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:09:35,978 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:09:35,979 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:09:35,980 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2023-11-12 00:09:39,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:09:39,401 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:09:39,402 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2023-11-12 00:09:39,415 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data/7b8c7dea0/2447d28a2d4b48adacb90c53d23f5d6d/FLAG3510eaa4b [2023-11-12 00:09:39,432 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data/7b8c7dea0/2447d28a2d4b48adacb90c53d23f5d6d [2023-11-12 00:09:39,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:09:39,440 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:09:39,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:39,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:09:39,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:09:39,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ca5cf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39, skipping insertion in model container [2023-11-12 00:09:39,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,490 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:09:39,690 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2023-11-12 00:09:39,768 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:39,791 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:09:39,806 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2023-11-12 00:09:39,853 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:39,870 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:09:39,871 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39 WrapperNode [2023-11-12 00:09:39,871 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:39,872 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:39,873 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:09:39,873 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:09:39,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,950 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 195 [2023-11-12 00:09:39,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:39,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:09:39,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:09:39,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:09:39,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,962 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,966 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,978 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,982 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,987 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,989 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:39,994 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:09:39,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:09:39,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:09:39,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:09:39,996 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (1/1) ... [2023-11-12 00:09:40,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:40,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:40,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:09:40,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:09:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:09:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:09:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:09:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:09:40,179 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:09:40,181 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:09:40,536 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:09:40,766 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:09:40,766 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:09:40,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:40 BoogieIcfgContainer [2023-11-12 00:09:40,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:09:40,772 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:09:40,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:09:40,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:09:40,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:09:39" (1/3) ... [2023-11-12 00:09:40,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1250a4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:40, skipping insertion in model container [2023-11-12 00:09:40,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:39" (2/3) ... [2023-11-12 00:09:40,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1250a4b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:40, skipping insertion in model container [2023-11-12 00:09:40,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:40" (3/3) ... [2023-11-12 00:09:40,779 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2023-11-12 00:09:40,800 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:09:40,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:09:40,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:09:40,869 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@38989ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:09:40,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:09:40,874 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) [2023-11-12 00:09:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:09:40,881 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:40,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:09:40,882 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:40,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:40,888 INFO L85 PathProgramCache]: Analyzing trace with hash 4419094, now seen corresponding path program 1 times [2023-11-12 00:09:40,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:09:40,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748118949] [2023-11-12 00:09:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:40,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:09:41,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:09:41,198 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:09:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:09:41,384 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:09:41,386 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:09:41,387 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:09:41,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:09:41,393 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:09:41,397 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:09:41,416 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 00:09:41,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:09:41 BoogieIcfgContainer [2023-11-12 00:09:41,431 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:09:41,434 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:09:41,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:09:41,435 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:09:41,435 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:40" (3/4) ... [2023-11-12 00:09:41,440 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:09:41,441 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:09:41,443 INFO L158 Benchmark]: Toolchain (without parser) took 2002.50ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 108.6MB in the beginning and 108.8MB in the end (delta: -275.7kB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-12 00:09:41,443 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 155.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:09:41,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.94ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 96.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:09:41,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.48ms. Allocated memory is still 155.2MB. Free memory was 96.0MB in the beginning and 92.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:09:41,449 INFO L158 Benchmark]: Boogie Preprocessor took 42.99ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 90.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:09:41,454 INFO L158 Benchmark]: RCFGBuilder took 773.76ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 90.5MB in the beginning and 138.3MB in the end (delta: -47.9MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2023-11-12 00:09:41,456 INFO L158 Benchmark]: TraceAbstraction took 659.92ms. Allocated memory is still 197.1MB. Free memory was 138.0MB in the beginning and 109.8MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-12 00:09:41,457 INFO L158 Benchmark]: Witness Printer took 7.42ms. Allocated memory is still 197.1MB. Free memory was 109.0MB in the beginning and 108.8MB in the end (delta: 137.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:09:41,464 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 155.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.94ms. Allocated memory is still 155.2MB. Free memory was 108.6MB in the beginning and 96.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.48ms. Allocated memory is still 155.2MB. Free memory was 96.0MB in the beginning and 92.2MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.99ms. Allocated memory is still 155.2MB. Free memory was 92.2MB in the beginning and 90.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 773.76ms. Allocated memory was 155.2MB in the beginning and 197.1MB in the end (delta: 41.9MB). Free memory was 90.5MB in the beginning and 138.3MB in the end (delta: -47.9MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 659.92ms. Allocated memory is still 197.1MB. Free memory was 138.0MB in the beginning and 109.8MB in the end (delta: 28.1MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 7.42ms. Allocated memory is still 197.1MB. Free memory was 109.0MB in the beginning and 108.8MB in the end (delta: 137.4kB). 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 bitwiseOr at line 98, overapproximation of bitwiseAnd at line 92. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 2); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (2 - 1); [L38] const SORT_35 mask_SORT_35 = (SORT_35)-1 >> (sizeof(SORT_35) * 8 - 12); [L39] const SORT_35 msb_SORT_35 = (SORT_35)1 << (12 - 1); [L41] const SORT_6 var_7 = 0; [L42] const SORT_12 var_14 = 0; [L43] const SORT_1 var_19 = 1; [L44] const SORT_6 var_49 = 1; [L45] const SORT_6 var_51 = 4; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_3 input_5; [L50] SORT_3 input_23; [L51] SORT_3 input_25; [L52] SORT_3 input_27; [L53] SORT_1 input_29; [L54] SORT_3 input_31; [L55] SORT_3 input_33; [L56] SORT_35 input_36; [L57] SORT_35 input_38; [L58] SORT_3 input_40; [L59] SORT_3 input_42; [L60] SORT_3 input_44; [L61] SORT_3 input_46; [L63] EXPR __VERIFIER_nondet_uchar() & mask_SORT_6 [L63] SORT_6 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L65] SORT_6 init_9_arg_1 = var_7; [L66] state_8 = init_9_arg_1 VAL [init_9_arg_1=0, mask_SORT_12=3, mask_SORT_1=1, mask_SORT_35=4095, mask_SORT_3=65535, mask_SORT_6=7, msb_SORT_12=2, msb_SORT_1=1, msb_SORT_35=2048, msb_SORT_3=32768, msb_SORT_6=4, state_8=0, var_14=0, var_19=1, var_49=1, var_51=4, var_7=0] [L69] input_2 = __VERIFIER_nondet_uchar() [L70] input_4 = __VERIFIER_nondet_ushort() [L71] input_5 = __VERIFIER_nondet_ushort() [L72] input_23 = __VERIFIER_nondet_ushort() [L73] input_25 = __VERIFIER_nondet_ushort() [L74] input_27 = __VERIFIER_nondet_ushort() [L75] input_29 = __VERIFIER_nondet_uchar() [L76] input_31 = __VERIFIER_nondet_ushort() [L77] input_33 = __VERIFIER_nondet_ushort() [L78] input_36 = __VERIFIER_nondet_ushort() [L79] input_38 = __VERIFIER_nondet_ushort() [L80] input_40 = __VERIFIER_nondet_ushort() [L81] input_42 = __VERIFIER_nondet_ushort() [L82] input_44 = __VERIFIER_nondet_ushort() [L83] input_46 = __VERIFIER_nondet_ushort() [L86] SORT_6 var_10_arg_0 = state_8; [L87] SORT_1 var_10 = var_10_arg_0 >> 2; [L88] SORT_1 var_11_arg_0 = var_10; [L89] SORT_1 var_11 = ~var_11_arg_0; [L90] SORT_6 var_13_arg_0 = state_8; [L91] SORT_12 var_13 = var_13_arg_0 >> 0; [L92] EXPR var_13 & mask_SORT_12 [L92] var_13 = var_13 & mask_SORT_12 [L93] SORT_12 var_15_arg_0 = var_13; [L94] SORT_12 var_15_arg_1 = var_14; [L95] SORT_1 var_15 = var_15_arg_0 == var_15_arg_1; [L96] SORT_1 var_16_arg_0 = var_11; [L97] SORT_1 var_16_arg_1 = var_15; [L98] EXPR var_16_arg_0 | var_16_arg_1 [L98] SORT_1 var_16 = var_16_arg_0 | var_16_arg_1; [L99] SORT_1 var_20_arg_0 = var_16; [L100] SORT_1 var_20 = ~var_20_arg_0; [L101] SORT_1 var_21_arg_0 = var_19; [L102] SORT_1 var_21_arg_1 = var_20; [L103] EXPR var_21_arg_0 & var_21_arg_1 [L103] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L104] EXPR var_21 & mask_SORT_1 [L104] var_21 = var_21 & mask_SORT_1 [L105] SORT_1 bad_22_arg_0 = var_21; [L106] CALL __VERIFIER_assert(!(bad_22_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:09:41,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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 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_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX --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 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:09:44,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:09:44,378 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-12 00:09:44,386 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:09:44,387 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:09:44,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:09:44,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:09:44,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:09:44,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:09:44,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:09:44,441 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:09:44,442 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:09:44,442 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:09:44,444 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:09:44,445 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:09:44,445 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:09:44,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:09:44,447 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:09:44,447 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:09:44,448 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:09:44,448 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:09:44,449 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:09:44,449 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:09:44,450 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:09:44,450 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:09:44,450 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:09:44,451 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:09:44,452 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:09:44,452 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:09:44,453 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:09:44,454 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:44,454 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:09:44,455 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:09:44,455 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:09:44,455 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:09:44,456 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:09:44,456 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:09:44,456 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:09:44,456 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:09:44,457 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c314eef3d472fe4a1a0388d2c5f5a188709ac797267103fd11452d71371ead3 [2023-11-12 00:09:44,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:09:44,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:09:44,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:09:44,881 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:09:44,882 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:09:44,883 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2023-11-12 00:09:47,980 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:09:48,266 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:09:48,267 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2023-11-12 00:09:48,283 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data/e1ec0d4ed/bc4890ef99904a32a805701f75b6d2fa/FLAGefeae8c20 [2023-11-12 00:09:48,306 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/data/e1ec0d4ed/bc4890ef99904a32a805701f75b6d2fa [2023-11-12 00:09:48,314 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:09:48,316 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:09:48,319 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:48,320 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:09:48,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:09:48,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51260baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48, skipping insertion in model container [2023-11-12 00:09:48,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,363 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:09:48,560 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2023-11-12 00:09:48,608 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:48,632 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:09:48,653 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p3.c[1260,1273] [2023-11-12 00:09:48,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:09:48,702 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:09:48,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48 WrapperNode [2023-11-12 00:09:48,703 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:09:48,704 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:48,704 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:09:48,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:09:48,712 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,723 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,751 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 135 [2023-11-12 00:09:48,751 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:09:48,752 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:09:48,752 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:09:48,752 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:09:48,760 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,775 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,778 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,782 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,786 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:09:48,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:09:48,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:09:48,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:09:48,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (1/1) ... [2023-11-12 00:09:48,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:09:48,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:48,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:09:48,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:09:48,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:09:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:09:48,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:09:48,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:09:48,965 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:09:48,968 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:09:49,270 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:09:49,275 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:09:49,277 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:09:49,279 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:49 BoogieIcfgContainer [2023-11-12 00:09:49,279 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:09:49,283 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:09:49,283 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:09:49,287 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:09:49,290 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:09:48" (1/3) ... [2023-11-12 00:09:49,291 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64154639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:49, skipping insertion in model container [2023-11-12 00:09:49,292 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:09:48" (2/3) ... [2023-11-12 00:09:49,293 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64154639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:09:49, skipping insertion in model container [2023-11-12 00:09:49,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:49" (3/3) ... [2023-11-12 00:09:49,295 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p3.c [2023-11-12 00:09:49,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:09:49,338 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:09:49,439 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:09:49,445 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@13bba794, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:09:49,446 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:09:49,450 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) [2023-11-12 00:09:49,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:09:49,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:49,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:09:49,458 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:49,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:49,464 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-12 00:09:49,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:09:49,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305159018] [2023-11-12 00:09:49,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:49,478 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:09:49,478 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:09:49,486 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:09:49,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:09:49,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:49,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 00:09:49,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:49,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:09:49,951 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:09:49,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305159018] [2023-11-12 00:09:49,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305159018] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:09:49,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:09:49,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:09:49,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356869240] [2023-11-12 00:09:49,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:09:49,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:09:49,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:09:50,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:09:50,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:09:50,005 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) [2023-11-12 00:09:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:50,058 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-12 00:09:50,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:09:50,061 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 [2023-11-12 00:09:50,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:50,070 INFO L225 Difference]: With dead ends: 19 [2023-11-12 00:09:50,070 INFO L226 Difference]: Without dead ends: 10 [2023-11-12 00:09:50,073 INFO L412 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 [2023-11-12 00:09:50,078 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 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 [2023-11-12 00:09:50,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:09:50,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-12 00:09:50,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-12 00:09:50,111 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) [2023-11-12 00:09:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-12 00:09:50,114 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-12 00:09:50,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:50,115 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-12 00:09:50,116 INFO L496 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) [2023-11-12 00:09:50,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-12 00:09:50,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:09:50,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:50,117 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:09:50,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:09:50,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:09:50,329 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:50,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:50,329 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-12 00:09:50,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:09:50,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1199439599] [2023-11-12 00:09:50,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:50,334 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:09:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:09:50,336 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:09:50,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:09:50,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:50,440 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-12 00:09:50,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:50,741 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:50,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:51,186 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:09:51,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1199439599] [2023-11-12 00:09:51,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1199439599] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:51,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1673410159] [2023-11-12 00:09:51,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:51,192 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:09:51,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:09:51,212 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:09:51,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-12 00:09:51,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:51,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-12 00:09:51,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:51,595 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:51,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1673410159] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:51,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345168764] [2023-11-12 00:09:51,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:09:51,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:09:51,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:51,917 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:09:51,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 00:09:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:09:52,008 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-12 00:09:52,011 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:52,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:52,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:52,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:52,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345168764] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:52,487 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 00:09:52,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 13 [2023-11-12 00:09:52,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278161933] [2023-11-12 00:09:52,488 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 00:09:52,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-12 00:09:52,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:09:52,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-12 00:09:52,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2023-11-12 00:09:52,491 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:09:52,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:09:52,860 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2023-11-12 00:09:52,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-12 00:09:52,861 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 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 [2023-11-12 00:09:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:09:52,862 INFO L225 Difference]: With dead ends: 18 [2023-11-12 00:09:52,862 INFO L226 Difference]: Without dead ends: 16 [2023-11-12 00:09:52,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2023-11-12 00:09:52,865 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:09:52,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 18 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:09:52,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-12 00:09:52,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2023-11-12 00:09:52,872 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) [2023-11-12 00:09:52,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-11-12 00:09:52,873 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2023-11-12 00:09:52,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:09:52,873 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-11-12 00:09:52,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:09:52,874 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-11-12 00:09:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:09:52,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:09:52,875 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2023-11-12 00:09:52,895 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:09:53,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-12 00:09:53,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 00:09:53,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:09:53,491 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:09:53,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:09:53,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2023-11-12 00:09:53,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:09:53,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488675816] [2023-11-12 00:09:53,492 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 00:09:53,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:09:53,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:09:53,494 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:09:53,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:09:53,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 00:09:53,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:09:53,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 51 conjunts are in the unsatisfiable core [2023-11-12 00:09:53,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:54,147 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:54,147 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:55,351 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:09:55,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488675816] [2023-11-12 00:09:55,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488675816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:55,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1218730839] [2023-11-12 00:09:55,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 00:09:55,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:09:55,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:09:55,353 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:09:55,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-12 00:09:55,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 00:09:55,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:09:55,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 55 conjunts are in the unsatisfiable core [2023-11-12 00:09:55,561 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:09:56,206 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:56,206 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:09:59,490 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:09:59,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1218730839] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:09:59,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093933998] [2023-11-12 00:09:59,491 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 00:09:59,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:09:59,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:09:59,493 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:09:59,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 00:09:59,615 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-12 00:09:59,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:09:59,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 73 conjunts are in the unsatisfiable core [2023-11-12 00:09:59,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:10:01,322 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 00:10:01,322 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:10:05,835 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse5 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_12~0#1|)) (.cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_14~0#1|)) (.cse7 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_6~0#1|))) (let ((.cse9 (let ((.cse30 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_7~0#1|)))))))) (let ((.cse28 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse30 (_ bv2 32)))))))) (.cse29 (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) .cse30)) .cse0))) .cse2))) (and (or (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|)))))) (_ bv0 8))) .cse29) (or (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse28 (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|)))))))) (not .cse29)))))) (.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_19~0#1|)) (.cse3 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_51~0#1|)) (.cse8 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_49~0#1|))) (and (forall ((|v_ULTIMATE.start_main_~var_53_arg_1~0#1_20| (_ BitVec 8))) (let ((.cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_1~0#1_20|)))))))) (let ((.cse6 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse1 .cse8)))))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse1))))) .cse2)) (= .cse1 .cse3) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse1 (_ bv2 32))))))) (_ bv1 32))))))) .cse4))) .cse5)) (_ bv0 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse6))))) .cse2) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse6 (_ bv2 32))))))) (_ bv0 32)))))))))) .cse5)) (_ bv0 8))))))) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_53_arg_1~0#1_20| (_ BitVec 8))) (let ((.cse10 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_1~0#1_20|)))))))) (or (not (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse10 (_ bv2 32))))))) (_ bv0 32)))))))))))) (_ bv0 8))) (not (= .cse10 .cse3)))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_2~0#1_20| (_ BitVec 8))) (let ((.cse12 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_2~0#1_20|)))))))) (let ((.cse11 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse12 .cse8)))))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse11))))) .cse2)) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse12 (_ bv2 32))))))) (_ bv0 32)))))))))))))) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse11 (_ bv2 32))))))) (_ bv1 32)))))))))))))) (= .cse12 .cse3))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_2~0#1_20| (_ BitVec 8))) (let ((.cse14 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_2~0#1_20|)))))))) (let ((.cse13 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse14 .cse8)))))))))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse13))))) .cse2) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse13 (_ bv2 32))))))) (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|)))))) (_ bv0 8))) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse14 (_ bv2 32))))))) (_ bv0 32)))))))))))))) (= .cse14 .cse3))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_1~0#1_20| (_ BitVec 8))) (let ((.cse15 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_1~0#1_20|)))))))) (let ((.cse16 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse15 .cse8)))))))))) (or (not (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse15 (_ bv2 32))))))) (_ bv0 32)))))))))))) (_ bv0 8))) (= .cse15 .cse3) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse16))))) .cse2) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse16 (_ bv2 32))))))) (_ bv0 32)))))))))) .cse5)) (_ bv0 8))))))) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_53_arg_1~0#1_20| (_ BitVec 8))) (let ((.cse17 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_1~0#1_20|)))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse17))))) .cse2)) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse17 (_ bv2 32))))))) (_ bv1 32))))))) .cse4))) .cse5)) (_ bv0 8))) (not (= .cse17 .cse3)))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_1~0#1_20| (_ BitVec 8))) (let ((.cse18 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_1~0#1_20|)))))))) (let ((.cse19 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse18 .cse8)))))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse18))))) .cse2)) (= .cse18 .cse3) (not (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse18 (_ bv2 32))))))) (_ bv1 32))))))) .cse4))) .cse5)) (_ bv0 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse19))))) .cse2)) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse19 (_ bv2 32))))))) (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|)))))) (_ bv0 8))))))) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_53_arg_2~0#1_20| (_ BitVec 8))) (let ((.cse20 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_2~0#1_20|)))))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse20 (_ bv2 32))))))) (_ bv1 32)))))))))))))) (not (= .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse20))))))) (not (= .cse20 .cse3)))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_2~0#1_20| (_ BitVec 8))) (let ((.cse22 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_2~0#1_20|)))))))) (let ((.cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse22 .cse8)))))))))) (or (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse21))))) .cse2) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse22 (_ bv2 32))))))) (_ bv1 32)))))))))))))) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse21 (_ bv2 32))))))) (_ bv0 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|)))))) (_ bv0 8))) (not (= .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse22))))))) (= .cse22 .cse3))))) (or .cse9 (forall ((|v_ULTIMATE.start_main_~var_53_arg_2~0#1_20| (_ BitVec 8))) (let ((.cse23 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_2~0#1_20|)))))))) (or (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse23 (_ bv2 32))))))) (_ bv0 32)))))))))))))) (not (= .cse23 .cse3)))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_1~0#1_20| (_ BitVec 8))) (let ((.cse24 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_1~0#1_20|)))))))) (let ((.cse25 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse24 .cse8)))))))))) (or (not (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse24 (_ bv2 32))))))) (_ bv0 32)))))))))))) (_ bv0 8))) (= .cse24 .cse3) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse25))))) .cse2)) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse25 (_ bv2 32))))))) (_ bv1 32))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|)))))) (_ bv0 8))))))) (forall ((|v_ULTIMATE.start_main_~var_53_arg_2~0#1_20| (_ BitVec 8))) (let ((.cse27 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_53_arg_2~0#1_20|)))))))) (let ((.cse26 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse7 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd .cse27 .cse8)))))))))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse26))))) .cse2)) (not (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse27 (_ bv2 32))))))) (_ bv1 32)))))))))))))) (forall ((|v_ULTIMATE.start_main_~var_21_arg_0~0#1_24| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse5 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_21_arg_0~0#1_24|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvashr .cse26 (_ bv2 32))))))) (_ bv1 32)))))))))))))) (not (= .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) .cse27))))))) (= .cse27 .cse3)))))))) is different from false [2023-11-12 00:10:11,156 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 9 not checked. [2023-11-12 00:10:11,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093933998] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:10:11,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-12 00:10:11,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 10, 9] total 30 [2023-11-12 00:10:11,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195520081] [2023-11-12 00:10:11,157 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-12 00:10:11,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-11-12 00:10:11,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:10:11,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-11-12 00:10:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=662, Unknown=3, NotChecked=54, Total=870 [2023-11-12 00:10:11,160 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 30 states, 30 states have (on average 2.1) internal successors, (63), 30 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:14,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:10:14,141 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2023-11-12 00:10:14,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 00:10:14,142 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.1) internal successors, (63), 30 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 00:10:14,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:10:14,142 INFO L225 Difference]: With dead ends: 19 [2023-11-12 00:10:14,142 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:10:14,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 48 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=323, Invalid=1084, Unknown=3, NotChecked=72, Total=1482 [2023-11-12 00:10:14,145 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 41 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:10:14,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 18 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:10:14,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:10:14,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:10:14,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:14,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:10:14,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-12 00:10:14,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:10:14,148 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:10:14,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.1) internal successors, (63), 30 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:10:14,148 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:10:14,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:10:14,151 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:10:14,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:14,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-12 00:10:14,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 00:10:14,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/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_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:10:14,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:10:15,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:10:15,128 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-12 00:10:15,128 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-12 00:10:15,129 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-12 00:10:15,129 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:10:15,129 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 23 124) no Hoare annotation was computed. [2023-11-12 00:10:15,129 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 122) the Hoare annotation is: (let ((.cse0 (= (_ bv4 8) |ULTIMATE.start_main_~var_51~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~var_14~0#1| (_ bv0 8))) (.cse3 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8))) (.cse4 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_12~0#1|)) (.cse5 (= (_ bv1 8) |ULTIMATE.start_main_~var_19~0#1|)) (.cse6 (= (_ bv1 8) |ULTIMATE.start_main_~var_49~0#1|)) (.cse7 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_6~0#1|))) (or (and .cse0 (= (_ bv2 8) |ULTIMATE.start_main_~state_8~0#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~state_8~0#1|))) (_ bv3 32))))) .cse3 .cse4 (exists ((|ULTIMATE.start_main_~var_53_arg_1~0#1| (_ BitVec 8))) (= |ULTIMATE.start_main_~state_8~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_53_arg_1~0#1|))) (_ bv7 32))))) .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~state_8~0#1| (_ bv3 8)) .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 .cse2 (= (_ bv1 8) |ULTIMATE.start_main_~state_8~0#1|) .cse3 .cse4 .cse5 .cse6 .cse7))) [2023-11-12 00:10:15,130 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 122) no Hoare annotation was computed. [2023-11-12 00:10:15,130 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-12 00:10:15,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-12 00:10:15,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-12 00:10:15,133 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2023-11-12 00:10:15,135 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:10:15,150 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_53_arg_1~0#1 : bv8 :: ~state_8~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_53_arg_1~0#1)[7:0]), 7bv32)[7:0]) could not be translated [2023-11-12 00:10:15,153 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_53_arg_1~0#1 : bv8 :: ~state_8~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_53_arg_1~0#1)[7:0]), 7bv32)[7:0]) could not be translated [2023-11-12 00:10:15,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:10:15 BoogieIcfgContainer [2023-11-12 00:10:15,155 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:10:15,156 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:10:15,156 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:10:15,156 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:10:15,157 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:09:49" (3/4) ... [2023-11-12 00:10:15,163 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:10:15,173 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-11-12 00:10:15,174 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:10:15,174 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-12 00:10:15,175 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:10:15,273 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:10:15,273 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:10:15,273 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:10:15,274 INFO L158 Benchmark]: Toolchain (without parser) took 26958.43ms. Allocated memory was 117.4MB in the beginning and 262.1MB in the end (delta: 144.7MB). Free memory was 92.1MB in the beginning and 153.5MB in the end (delta: -61.3MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2023-11-12 00:10:15,274 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 75.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:15,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.77ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 78.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:10:15,275 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.47ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:10:15,275 INFO L158 Benchmark]: Boogie Preprocessor took 34.40ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 75.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:10:15,276 INFO L158 Benchmark]: RCFGBuilder took 491.22ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 62.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-12 00:10:15,276 INFO L158 Benchmark]: TraceAbstraction took 25872.34ms. Allocated memory was 117.4MB in the beginning and 262.1MB in the end (delta: 144.7MB). Free memory was 61.4MB in the beginning and 158.7MB in the end (delta: -97.3MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2023-11-12 00:10:15,277 INFO L158 Benchmark]: Witness Printer took 117.60ms. Allocated memory is still 262.1MB. Free memory was 158.7MB in the beginning and 153.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:10:15,279 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 75.5MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.77ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 78.9MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.47ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 77.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.40ms. Allocated memory is still 117.4MB. Free memory was 76.8MB in the beginning and 75.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 491.22ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 62.1MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 25872.34ms. Allocated memory was 117.4MB in the beginning and 262.1MB in the end (delta: 144.7MB). Free memory was 61.4MB in the beginning and 158.7MB in the end (delta: -97.3MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. * Witness Printer took 117.60ms. Allocated memory is still 262.1MB. Free memory was 158.7MB in the beginning and 153.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_53_arg_1~0#1 : bv8 :: ~state_8~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_53_arg_1~0#1)[7:0]), 7bv32)[7:0]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_53_arg_1~0#1 : bv8 :: ~state_8~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_53_arg_1~0#1)[7:0]), 7bv32)[7:0]) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.7s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 61 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 10 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 56 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 14.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 26, 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, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 6 NumberOfFragments, 130 HoareAnnotationTreeSize, 1 FomulaSimplifications, 51 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 235 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 49 QuantifiedInterpolants, 18257 SizeOfPredicates, 291 NumberOfNonLiveVariables, 753 ConjunctsInSsa, 291 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 4/102 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant [2023-11-12 00:10:15,302 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_53_arg_1~0#1 : bv8 :: ~state_8~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_53_arg_1~0#1)[7:0]), 7bv32)[7:0]) could not be translated [2023-11-12 00:10:15,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists ULTIMATE.start_main_~var_53_arg_1~0#1 : bv8 :: ~state_8~0 == ~bvand~32(~zero_extend~32~16(~zero_extend~32~16(ULTIMATE.start_main_~var_53_arg_1~0#1)[7:0]), 7bv32)[7:0]) could not be translated Derived loop invariant: ((((((((((((4 == var_51) && (2 == state_8)) && (1 == mask_SORT_1)) && (var_14 == 0)) && (var_7 == 0)) && (3 == mask_SORT_12)) && (1 == var_19)) && (1 == var_49)) && (7 == mask_SORT_6)) || (((((((((4 == var_51) && (1 == mask_SORT_1)) && (var_14 == 0)) && (0 == (((state_8 & 127) & 3) & 127))) && (var_7 == 0)) && (3 == mask_SORT_12)) && (1 == var_19)) && (1 == var_49)) && (7 == mask_SORT_6))) || (((((((((4 == var_51) && (1 == mask_SORT_1)) && (var_14 == 0)) && (state_8 == 3)) && (var_7 == 0)) && (3 == mask_SORT_12)) && (1 == var_19)) && (1 == var_49)) && (7 == mask_SORT_6))) || (((((((((4 == var_51) && (1 == mask_SORT_1)) && (var_14 == 0)) && (1 == state_8)) && (var_7 == 0)) && (3 == mask_SORT_12)) && (1 == var_19)) && (1 == var_49)) && (7 == mask_SORT_6))) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:10:15,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f15c6cef-af25-4bfc-ac6f-2cbcf6231ee3/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE