./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1e424fdb45007bba7dcf6b9c7609abd758db94a72eb27633df48ff94056907f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:44,555 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:44,624 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:15:44,630 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:44,631 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:44,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:44,656 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:44,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:44,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:44,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:44,659 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:44,659 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:44,660 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:44,660 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:44,661 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:44,661 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:44,662 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:44,662 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:44,663 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:44,663 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:44,664 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:44,668 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:44,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:44,669 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:44,670 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:15:44,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:44,671 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:15:44,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:44,672 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:44,672 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:44,673 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:44,673 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:15:44,673 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:44,674 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:44,674 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:44,674 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:44,674 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:44,675 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:44,675 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:44,675 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:44,675 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:44,677 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:44,678 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:44,678 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:44,678 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:44,678 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:44,679 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:44,679 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_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1e424fdb45007bba7dcf6b9c7609abd758db94a72eb27633df48ff94056907f [2023-11-23 21:15:44,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:44,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:44,983 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:44,986 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:44,986 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:44,987 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i [2023-11-23 21:15:48,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:48,350 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:48,351 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i [2023-11-23 21:15:48,360 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data/4bf20d4c4/fa2dad5dc3bf4a83aca1223d28a4052b/FLAG983ca10a2 [2023-11-23 21:15:48,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data/4bf20d4c4/fa2dad5dc3bf4a83aca1223d28a4052b [2023-11-23 21:15:48,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:48,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:48,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:48,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:48,393 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:48,396 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,398 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e206c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48, skipping insertion in model container [2023-11-23 21:15:48,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,441 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:48,607 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_4f7faa56-1073-4f35-a9d6-aba82e551285/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i[916,929] [2023-11-23 21:15:48,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:48,680 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:48,698 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_4f7faa56-1073-4f35-a9d6-aba82e551285/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i[916,929] [2023-11-23 21:15:48,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:48,804 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:48,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48 WrapperNode [2023-11-23 21:15:48,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:48,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:48,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:48,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:48,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,828 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,898 INFO L138 Inliner]: procedures = 29, calls = 150, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 391 [2023-11-23 21:15:48,915 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:48,916 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:48,916 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:48,916 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:48,924 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,932 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,962 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,965 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,989 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:48,990 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:48,991 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:48,991 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:48,993 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (1/1) ... [2023-11-23 21:15:48,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:49,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:49,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:49,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:49,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 21:15:49,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 21:15:49,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-23 21:15:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:15:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:49,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:49,233 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:49,235 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:49,841 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:50,378 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:50,379 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:15:50,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:50 BoogieIcfgContainer [2023-11-23 21:15:50,382 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:50,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:50,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:50,387 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:50,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:48" (1/3) ... [2023-11-23 21:15:50,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619dbd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:50, skipping insertion in model container [2023-11-23 21:15:50,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:48" (2/3) ... [2023-11-23 21:15:50,391 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@619dbd25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:50, skipping insertion in model container [2023-11-23 21:15:50,391 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:50" (3/3) ... [2023-11-23 21:15:50,393 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-34.i [2023-11-23 21:15:50,413 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:50,413 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:15:50,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:50,487 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;@458988c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:50,487 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:15:50,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 29 states have (on average 1.103448275862069) internal successors, (32), 30 states have internal predecessors, (32), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:15:50,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-11-23 21:15:50,507 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:50,508 INFO L195 NwaCegarLoop]: trace histogram [23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:50,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:50,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:50,517 INFO L85 PathProgramCache]: Analyzing trace with hash 816663649, now seen corresponding path program 1 times [2023-11-23 21:15:50,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:50,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499759125] [2023-11-23 21:15:50,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:50,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:52,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:15:52,535 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:15:53,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:15:53,435 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:15:53,438 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:15:53,439 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:15:53,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:15:53,448 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:15:53,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:15:53,519 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-23 21:15:53,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-23 21:15:53,521 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-23 21:15:53,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated [2023-11-23 21:15:53,522 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-23 21:15:53,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-23 21:15:53,523 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-23 21:15:53,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated [2023-11-23 21:15:53,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated [2023-11-23 21:15:53,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-23 21:15:53,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-23 21:15:53,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-11-23 21:15:53,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-23 21:15:53,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-23 21:15:53,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-23 21:15:53,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-11-23 21:15:53,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated [2023-11-23 21:15:53,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated [2023-11-23 21:15:53,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-23 21:15:53,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated [2023-11-23 21:15:53,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-23 21:15:53,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated [2023-11-23 21:15:53,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-23 21:15:53,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated [2023-11-23 21:15:53,528 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-23 21:15:53,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-23 21:15:53,529 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-23 21:15:53,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated [2023-11-23 21:15:53,537 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-23 21:15:53,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated [2023-11-23 21:15:53,538 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:15:53,540 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated [2023-11-23 21:15:53,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-23 21:15:53,541 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated [2023-11-23 21:15:53,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-23 21:15:53,542 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated [2023-11-23 21:15:53,544 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-23 21:15:53,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated [2023-11-23 21:15:53,545 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-23 21:15:53,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated [2023-11-23 21:15:53,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-23 21:15:53,546 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated [2023-11-23 21:15:53,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-23 21:15:53,547 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated [2023-11-23 21:15:53,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-23 21:15:53,549 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated [2023-11-23 21:15:53,550 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-23 21:15:53,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated [2023-11-23 21:15:53,555 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-23 21:15:53,556 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated [2023-11-23 21:15:53,556 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-23 21:15:53,556 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated [2023-11-23 21:15:53,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-23 21:15:53,557 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated [2023-11-23 21:15:53,558 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-23 21:15:53,560 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated [2023-11-23 21:15:53,561 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-23 21:15:53,562 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated [2023-11-23 21:15:53,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:15:53 BoogieIcfgContainer [2023-11-23 21:15:53,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:15:53,600 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:15:53,600 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:15:53,600 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:15:53,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:50" (3/4) ... [2023-11-23 21:15:53,604 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:15:53,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:15:53,607 INFO L158 Benchmark]: Toolchain (without parser) took 5223.13ms. Allocated memory was 130.0MB in the beginning and 186.6MB in the end (delta: 56.6MB). Free memory was 86.8MB in the beginning and 78.8MB in the end (delta: 8.0MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,607 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:15:53,609 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.80ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 70.6MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,610 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.43ms. Allocated memory is still 130.0MB. Free memory was 70.6MB in the beginning and 67.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,612 INFO L158 Benchmark]: Boogie Preprocessor took 74.09ms. Allocated memory is still 130.0MB. Free memory was 67.0MB in the beginning and 63.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,616 INFO L158 Benchmark]: RCFGBuilder took 1391.41ms. Allocated memory is still 130.0MB. Free memory was 63.8MB in the beginning and 71.0MB in the end (delta: -7.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,618 INFO L158 Benchmark]: TraceAbstraction took 3213.83ms. Allocated memory was 130.0MB in the beginning and 186.6MB in the end (delta: 56.6MB). Free memory was 71.0MB in the beginning and 79.9MB in the end (delta: -8.9MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,618 INFO L158 Benchmark]: Witness Printer took 5.84ms. Allocated memory is still 186.6MB. Free memory was 79.9MB in the beginning and 78.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:15:53,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 107.0MB. Free memory is still 76.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.80ms. Allocated memory is still 130.0MB. Free memory was 86.8MB in the beginning and 70.6MB in the end (delta: 16.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.43ms. Allocated memory is still 130.0MB. Free memory was 70.6MB in the beginning and 67.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.09ms. Allocated memory is still 130.0MB. Free memory was 67.0MB in the beginning and 63.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1391.41ms. Allocated memory is still 130.0MB. Free memory was 63.8MB in the beginning and 71.0MB in the end (delta: -7.2MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3213.83ms. Allocated memory was 130.0MB in the beginning and 186.6MB in the end (delta: 56.6MB). Free memory was 71.0MB in the beginning and 79.9MB in the end (delta: -8.9MB). Peak memory consumption was 78.8MB. Max. memory is 16.1GB. * Witness Printer took 5.84ms. Allocated memory is still 186.6MB. Free memory was 79.9MB in the beginning and 78.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem40 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short45 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem48 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem51 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem52 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem54 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem55 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem57 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem58 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem60 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem61 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem63 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem64 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem66 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem67 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem69 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem70 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem72 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem73 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 someBinaryDOUBLEComparisonOperation at line 65, overapproximation of someUnaryDOUBLEoperation at line 65. Possible FailurePath: [L40] unsigned char isInitial = 0; [L41-L58] struct WrapperStruct00 WrapperStruct00 = { 16.6, 1, 1, 10.6, 0, 1, 0, 0, 10, 100, 64, 100, -4, 32, 4, 64 }; [L59] unsigned char last_1_WrapperStruct00_var_1_5 = 0; [L131] isInitial = 1 [L132] FCALL initially() [L133] COND TRUE 1 [L134] CALL updateLastVariables() [L124] EXPR WrapperStruct00.var_1_5 [L124] last_1_WrapperStruct00_var_1_5 = WrapperStruct00.var_1_5 [L134] RET updateLastVariables() [L135] CALL updateVariables() [L87] WrapperStruct00.var_1_2 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L88] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L89] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L89] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L90] WrapperStruct00.var_1_3 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L91] RET assume_abort_if_not(WrapperStruct00.var_1_3 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L92] EXPR WrapperStruct00.var_1_3 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_3 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L92] RET assume_abort_if_not(WrapperStruct00.var_1_3 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L93] WrapperStruct00.var_1_4 = __VERIFIER_nondet_double() [L94] EXPR WrapperStruct00.var_1_4 [L94] EXPR WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F [L94] EXPR WrapperStruct00.var_1_4 [L94] EXPR WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F [L94] EXPR (WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L94] CALL assume_abort_if_not((WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L94] RET assume_abort_if_not((WrapperStruct00.var_1_4 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_4 <= -1.0e-20F) || (WrapperStruct00.var_1_4 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_4 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L95] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L96] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L96] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L97] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L97] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L98] WrapperStruct00.var_1_8 = __VERIFIER_nondet_uchar() [L99] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L99] CALL assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L99] RET assume_abort_if_not(WrapperStruct00.var_1_8 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L100] EXPR WrapperStruct00.var_1_8 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_8 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L100] RET assume_abort_if_not(WrapperStruct00.var_1_8 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L101] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L102] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L102] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L102] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L103] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L103] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L104] WrapperStruct00.var_1_11 = __VERIFIER_nondet_uchar() [L105] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L105] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L106] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 128) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L106] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 128) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L107] WrapperStruct00.var_1_12 = __VERIFIER_nondet_uchar() [L108] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 64) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L108] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 64) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L109] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L109] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L109] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L110] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L111] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L111] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L112] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L112] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L112] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L113] WrapperStruct00.var_1_14 = __VERIFIER_nondet_char() [L114] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L114] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L115] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L115] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L115] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L116] WrapperStruct00.var_1_15 = __VERIFIER_nondet_char() [L117] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= -63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L117] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= -63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L118] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L118] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 63) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L118] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 63) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L119] WrapperStruct00.var_1_16 = __VERIFIER_nondet_char() [L120] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L120] RET assume_abort_if_not(WrapperStruct00.var_1_16 >= -127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L121] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L121] CALL assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L20] COND FALSE !(!cond) [L121] RET assume_abort_if_not(WrapperStruct00.var_1_16 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L135] RET updateVariables() [L136] CALL step() [L63] COND FALSE !(\read(last_1_WrapperStruct00_var_1_5)) [L68] EXPR WrapperStruct00.var_1_1 [L68] EXPR WrapperStruct00.var_1_4 [L68] EXPR WrapperStruct00.var_1_1 [L68] COND FALSE !(WrapperStruct00.var_1_1 >= (- (WrapperStruct00.var_1_4 * WrapperStruct00.var_1_1))) [L71] EXPR WrapperStruct00.var_1_3 [L71] WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4)) [L71] EXPR WrapperStruct00.var_1_17 [L71] WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4)) [L71] COND TRUE WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4)) [L72] EXPR WrapperStruct00.var_1_2 [L72] EXPR WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3 [L72] EXPR WrapperStruct00.var_1_3 [L72] EXPR WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3 [L72] EXPR (WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7 [L72] EXPR WrapperStruct00.var_1_7 [L72] EXPR (WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7 [L72] WrapperStruct00.var_1_5 = ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7) [L76] EXPR WrapperStruct00.var_1_11 [L76] EXPR WrapperStruct00.var_1_12 [L76] EXPR WrapperStruct00.var_1_13 [L76] EXPR ((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1) [L76] signed long int stepLocal_1 = (WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1))); [L77] EXPR WrapperStruct00.var_1_17 [L77] signed char stepLocal_0 = WrapperStruct00.var_1_17; [L78] COND FALSE !(-10 >= stepLocal_0) [L136] RET step() [L137] CALL, EXPR property() [L127] EXPR last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1 [L127] EXPR (last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9)))))) [L127] EXPR WrapperStruct00.var_1_3 [L127] EXPR WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4)) [L127] EXPR WrapperStruct00.var_1_17 [L127] EXPR WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4)) [L127] EXPR (WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))) [L127] EXPR WrapperStruct00.var_1_5 [L127] EXPR WrapperStruct00.var_1_2 [L127] EXPR WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3 [L127] EXPR WrapperStruct00.var_1_3 [L127] EXPR WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3 [L127] EXPR (WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7 [L127] EXPR WrapperStruct00.var_1_7 [L127] EXPR (WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7 [L127] EXPR (WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))) [L127] EXPR (last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9)))))) [L127] EXPR ((last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))))) && ((-10 >= WrapperStruct00.var_1_17) ? ((((WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1)))) > (~ WrapperStruct00.var_1_17)) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_14 + WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_16))) : 1) [L127] EXPR WrapperStruct00.var_1_17 [L127] EXPR (-10 >= WrapperStruct00.var_1_17) ? ((((WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1)))) > (~ WrapperStruct00.var_1_17)) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_14 + WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_16))) : 1 [L127] EXPR ((last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))))) && ((-10 >= WrapperStruct00.var_1_17) ? ((((WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1)))) > (~ WrapperStruct00.var_1_17)) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_14 + WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_16))) : 1) [L127] EXPR (((last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))))) && ((-10 >= WrapperStruct00.var_1_17) ? ((((WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1)))) > (~ WrapperStruct00.var_1_17)) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_14 + WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_16))) : 1)) && ((WrapperStruct00.var_1_1 >= (- (WrapperStruct00.var_1_4 * WrapperStruct00.var_1_1))) ? (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_15)) : 1) [L127] EXPR WrapperStruct00.var_1_1 [L127] EXPR WrapperStruct00.var_1_4 [L127] EXPR WrapperStruct00.var_1_1 [L127] EXPR (WrapperStruct00.var_1_1 >= (- (WrapperStruct00.var_1_4 * WrapperStruct00.var_1_1))) ? (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_15)) : 1 [L127] EXPR WrapperStruct00.var_1_17 [L127] EXPR WrapperStruct00.var_1_15 [L127] EXPR (WrapperStruct00.var_1_1 >= (- (WrapperStruct00.var_1_4 * WrapperStruct00.var_1_1))) ? (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_15)) : 1 [L127] EXPR (((last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))))) && ((-10 >= WrapperStruct00.var_1_17) ? ((((WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1)))) > (~ WrapperStruct00.var_1_17)) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_14 + WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_16))) : 1)) && ((WrapperStruct00.var_1_1 >= (- (WrapperStruct00.var_1_4 * WrapperStruct00.var_1_1))) ? (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_15)) : 1) [L127-L128] return (((last_1_WrapperStruct00_var_1_5 ? (last_1_WrapperStruct00_var_1_5 ? (WrapperStruct00.var_1_1 == ((double) ((((WrapperStruct00.var_1_4) < 0 ) ? -(WrapperStruct00.var_1_4) : (WrapperStruct00.var_1_4))))) : 1) : 1) && ((WrapperStruct00.var_1_3 || (256 >= (WrapperStruct00.var_1_17 + 4))) ? (WrapperStruct00.var_1_5 == ((unsigned char) ((WrapperStruct00.var_1_2 || WrapperStruct00.var_1_3) || WrapperStruct00.var_1_7))) : (WrapperStruct00.var_1_5 == ((unsigned char) (! (! (WrapperStruct00.var_1_8 || WrapperStruct00.var_1_9))))))) && ((-10 >= WrapperStruct00.var_1_17) ? ((((WrapperStruct00.var_1_11 + WrapperStruct00.var_1_12) - ((((WrapperStruct00.var_1_13) < (1)) ? (WrapperStruct00.var_1_13) : (1)))) > (~ WrapperStruct00.var_1_17)) ? (WrapperStruct00.var_1_10 == ((signed char) (WrapperStruct00.var_1_14 + WrapperStruct00.var_1_15))) : (WrapperStruct00.var_1_10 == ((signed char) WrapperStruct00.var_1_16))) : 1)) && ((WrapperStruct00.var_1_1 >= (- (WrapperStruct00.var_1_4 * WrapperStruct00.var_1_1))) ? (WrapperStruct00.var_1_17 == ((signed char) WrapperStruct00.var_1_15)) : 1) ; [L137] RET, EXPR property() [L137] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_5=0] [L19] reach_error() VAL [WrapperStruct00={4:0}, \old(cond)=0, cond=0, isInitial=1, last_1_WrapperStruct00_var_1_5=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 1, TraceHistogramMax: 23, 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=55occurred 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, 1.8s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 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 [2023-11-23 21:15:53,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c1e424fdb45007bba7dcf6b9c7609abd758db94a72eb27633df48ff94056907f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:56,424 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:56,528 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:15:56,534 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:56,534 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:56,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:56,564 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:56,565 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:56,566 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:56,566 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:56,567 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:56,567 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:56,568 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:56,569 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:56,569 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:56,570 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:56,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:56,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:56,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:15:56,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:15:56,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:56,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:56,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:56,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:56,576 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:15:56,576 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:15:56,577 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:15:56,577 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:15:56,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:56,578 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:56,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:56,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:15:56,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:56,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:56,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:56,581 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:56,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:56,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:56,582 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:15:56,583 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:15:56,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:56,583 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:56,584 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:56,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:56,584 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_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c1e424fdb45007bba7dcf6b9c7609abd758db94a72eb27633df48ff94056907f [2023-11-23 21:15:56,958 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:56,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:56,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:56,993 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:56,994 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:56,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i [2023-11-23 21:16:00,246 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:16:00,504 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:16:00,505 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i [2023-11-23 21:16:00,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data/1a9e751f3/f5f6e6c944264b53a2f81fd8aa34ec0f/FLAG25a7c824a [2023-11-23 21:16:00,529 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/data/1a9e751f3/f5f6e6c944264b53a2f81fd8aa34ec0f [2023-11-23 21:16:00,531 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:16:00,533 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:16:00,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:00,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:16:00,542 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:16:00,543 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:00,544 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfdbef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00, skipping insertion in model container [2023-11-23 21:16:00,544 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:00,574 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:16:00,721 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_4f7faa56-1073-4f35-a9d6-aba82e551285/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i[916,929] [2023-11-23 21:16:00,780 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:00,796 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:16:00,810 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_4f7faa56-1073-4f35-a9d6-aba82e551285/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-34.i[916,929] [2023-11-23 21:16:00,883 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:16:00,923 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:16:00,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00 WrapperNode [2023-11-23 21:16:00,924 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:16:00,926 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:00,926 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:16:00,926 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:16:00,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:00,958 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,010 INFO L138 Inliner]: procedures = 30, calls = 150, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 388 [2023-11-23 21:16:01,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:16:01,012 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:16:01,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:16:01,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:16:01,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,032 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,066 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,076 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:16:01,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:16:01,077 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:16:01,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:16:01,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (1/1) ... [2023-11-23 21:16:01,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:16:01,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:16:01,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:16:01,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:16:01,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:16:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-23 21:16:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-23 21:16:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 21:16:01,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:16:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-23 21:16:01,166 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:16:01,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:16:01,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:16:01,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:16:01,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 21:16:01,302 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:16:01,304 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:16:10,132 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:16:10,218 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:16:10,219 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:16:10,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:10 BoogieIcfgContainer [2023-11-23 21:16:10,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:16:10,225 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:16:10,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:16:10,229 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:16:10,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:16:00" (1/3) ... [2023-11-23 21:16:10,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8459dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:10, skipping insertion in model container [2023-11-23 21:16:10,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:16:00" (2/3) ... [2023-11-23 21:16:10,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8459dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:16:10, skipping insertion in model container [2023-11-23 21:16:10,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:16:10" (3/3) ... [2023-11-23 21:16:10,234 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-34.i [2023-11-23 21:16:10,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:16:10,255 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:16:10,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:16:10,325 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;@7b9c459e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:16:10,325 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:16:10,332 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 88 states have internal predecessors, (122), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:16:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 21:16:10,355 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:10,355 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:10,356 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:10,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:10,362 INFO L85 PathProgramCache]: Analyzing trace with hash 992344927, now seen corresponding path program 1 times [2023-11-23 21:16:10,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:10,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772110405] [2023-11-23 21:16:10,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:10,378 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 [2023-11-23 21:16:10,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:10,380 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:10,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:10,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:16:10,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:11,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 492 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2023-11-23 21:16:11,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:11,026 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:11,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772110405] [2023-11-23 21:16:11,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [772110405] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:11,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:11,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:16:11,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412725106] [2023-11-23 21:16:11,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:11,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:16:11,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:11,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:16:11,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:11,088 INFO L87 Difference]: Start difference. First operand has 113 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 88 states have internal predecessors, (122), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:16:11,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:11,167 INFO L93 Difference]: Finished difference Result 223 states and 357 transitions. [2023-11-23 21:16:11,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:16:11,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 166 [2023-11-23 21:16:11,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:11,179 INFO L225 Difference]: With dead ends: 223 [2023-11-23 21:16:11,179 INFO L226 Difference]: Without dead ends: 111 [2023-11-23 21:16:11,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:16:11,187 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:11,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:11,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-23 21:16:11,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-23 21:16:11,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 86 states have (on average 1.3604651162790697) internal successors, (117), 86 states have internal predecessors, (117), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:16:11,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 163 transitions. [2023-11-23 21:16:11,241 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 163 transitions. Word has length 166 [2023-11-23 21:16:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:11,242 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 163 transitions. [2023-11-23 21:16:11,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2023-11-23 21:16:11,243 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 163 transitions. [2023-11-23 21:16:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2023-11-23 21:16:11,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:11,248 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:11,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:11,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:11,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:11,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:11,466 INFO L85 PathProgramCache]: Analyzing trace with hash -520706179, now seen corresponding path program 1 times [2023-11-23 21:16:11,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:11,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1832734805] [2023-11-23 21:16:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:11,467 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 [2023-11-23 21:16:11,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:11,515 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:11,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:11,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:16:12,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:12,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:16:12,085 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:12,086 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:12,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1832734805] [2023-11-23 21:16:12,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1832734805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:12,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:12,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:12,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130373862] [2023-11-23 21:16:12,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:12,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:12,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:12,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:12,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:12,097 INFO L87 Difference]: Start difference. First operand 111 states and 163 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:12,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:12,200 INFO L93 Difference]: Finished difference Result 219 states and 322 transitions. [2023-11-23 21:16:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:12,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 166 [2023-11-23 21:16:12,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:12,204 INFO L225 Difference]: With dead ends: 219 [2023-11-23 21:16:12,204 INFO L226 Difference]: Without dead ends: 109 [2023-11-23 21:16:12,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:12,207 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:12,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 304 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2023-11-23 21:16:12,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2023-11-23 21:16:12,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 84 states have (on average 1.3452380952380953) internal successors, (113), 84 states have internal predecessors, (113), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:16:12,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2023-11-23 21:16:12,222 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 166 [2023-11-23 21:16:12,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:12,224 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2023-11-23 21:16:12,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:12,225 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2023-11-23 21:16:12,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2023-11-23 21:16:12,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:12,229 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:12,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:12,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:12,439 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:12,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:12,440 INFO L85 PathProgramCache]: Analyzing trace with hash 145697513, now seen corresponding path program 1 times [2023-11-23 21:16:12,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:12,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2074115418] [2023-11-23 21:16:12,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:12,442 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 [2023-11-23 21:16:12,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:12,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:12,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-23 21:16:12,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:12,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:12,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:13,013 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:16:13,014 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:13,015 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:13,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2074115418] [2023-11-23 21:16:13,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2074115418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:13,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:13,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:16:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059593382] [2023-11-23 21:16:13,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:13,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:16:13,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:13,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:16:13,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:16:13,029 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:13,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:13,175 INFO L93 Difference]: Finished difference Result 241 states and 353 transitions. [2023-11-23 21:16:13,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:16:13,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 168 [2023-11-23 21:16:13,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:13,180 INFO L225 Difference]: With dead ends: 241 [2023-11-23 21:16:13,181 INFO L226 Difference]: Without dead ends: 133 [2023-11-23 21:16:13,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:16:13,182 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 61 mSDsluCounter, 304 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:13,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 475 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:13,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2023-11-23 21:16:13,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 111. [2023-11-23 21:16:13,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-11-23 21:16:13,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 161 transitions. [2023-11-23 21:16:13,217 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 161 transitions. Word has length 168 [2023-11-23 21:16:13,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:13,218 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 161 transitions. [2023-11-23 21:16:13,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:13,219 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 161 transitions. [2023-11-23 21:16:13,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2023-11-23 21:16:13,234 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:13,235 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:13,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:16:13,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:13,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:13,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:13,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1760155113, now seen corresponding path program 1 times [2023-11-23 21:16:13,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:13,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78436964] [2023-11-23 21:16:13,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:13,449 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 [2023-11-23 21:16:13,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:13,450 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:13,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 21:16:13,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:13,913 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:13,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:14,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-23 21:16:15,076 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:16:15,077 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:15,077 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:15,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [78436964] [2023-11-23 21:16:15,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [78436964] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:15,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:15,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:15,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125089637] [2023-11-23 21:16:15,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:15,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:16:15,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:15,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:16:15,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:16:15,080 INFO L87 Difference]: Start difference. First operand 111 states and 161 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:17,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:20,455 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:22,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:24,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:24,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:24,971 INFO L93 Difference]: Finished difference Result 333 states and 483 transitions. [2023-11-23 21:16:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:16:24,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 170 [2023-11-23 21:16:24,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:24,975 INFO L225 Difference]: With dead ends: 333 [2023-11-23 21:16:24,975 INFO L226 Difference]: Without dead ends: 223 [2023-11-23 21:16:24,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:16:24,977 INFO L413 NwaCegarLoop]: 121 mSDtfsCounter, 94 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 65 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:24,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 361 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 109 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2023-11-23 21:16:24,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-23 21:16:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 184. [2023-11-23 21:16:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 135 states have (on average 1.288888888888889) internal successors, (174), 135 states have internal predecessors, (174), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-23 21:16:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 266 transitions. [2023-11-23 21:16:25,006 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 266 transitions. Word has length 170 [2023-11-23 21:16:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:25,007 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 266 transitions. [2023-11-23 21:16:25,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 266 transitions. [2023-11-23 21:16:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2023-11-23 21:16:25,010 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:25,010 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:25,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-23 21:16:25,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:25,222 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:25,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1866175159, now seen corresponding path program 1 times [2023-11-23 21:16:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:25,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531126199] [2023-11-23 21:16:25,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:25,224 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 [2023-11-23 21:16:25,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:25,226 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:25,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:25,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 21:16:25,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:25,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:16:25,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:25,775 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:25,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531126199] [2023-11-23 21:16:25,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531126199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:25,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:25,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:25,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952120546] [2023-11-23 21:16:25,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:25,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:25,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:25,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:25,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:25,779 INFO L87 Difference]: Start difference. First operand 184 states and 266 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:25,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:25,846 INFO L93 Difference]: Finished difference Result 321 states and 465 transitions. [2023-11-23 21:16:25,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:25,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 173 [2023-11-23 21:16:25,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:25,851 INFO L225 Difference]: With dead ends: 321 [2023-11-23 21:16:25,851 INFO L226 Difference]: Without dead ends: 195 [2023-11-23 21:16:25,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:25,853 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 26 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:25,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 289 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:16:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-23 21:16:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 182. [2023-11-23 21:16:25,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 133 states have (on average 1.2781954887218046) internal successors, (170), 133 states have internal predecessors, (170), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-23 21:16:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 262 transitions. [2023-11-23 21:16:25,905 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 262 transitions. Word has length 173 [2023-11-23 21:16:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:25,908 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 262 transitions. [2023-11-23 21:16:25,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:25,909 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 262 transitions. [2023-11-23 21:16:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-23 21:16:25,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:25,913 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:25,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:26,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:26,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:26,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:26,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1294688055, now seen corresponding path program 1 times [2023-11-23 21:16:26,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:26,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674888717] [2023-11-23 21:16:26,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:26,126 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 [2023-11-23 21:16:26,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:26,127 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:26,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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)] Waiting until timeout for monitored process [2023-11-23 21:16:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:26,599 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-23 21:16:26,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:26,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:16:26,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:26,668 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:26,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674888717] [2023-11-23 21:16:26,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674888717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:26,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:26,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 21:16:26,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304435687] [2023-11-23 21:16:26,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:26,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:16:26,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:26,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:16:26,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:16:26,670 INFO L87 Difference]: Start difference. First operand 182 states and 262 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:26,814 INFO L93 Difference]: Finished difference Result 338 states and 486 transitions. [2023-11-23 21:16:26,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:16:26,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 175 [2023-11-23 21:16:26,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:26,818 INFO L225 Difference]: With dead ends: 338 [2023-11-23 21:16:26,818 INFO L226 Difference]: Without dead ends: 214 [2023-11-23 21:16:26,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:16:26,821 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 63 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:26,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 459 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:16:26,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-11-23 21:16:26,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 184. [2023-11-23 21:16:26,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 135 states have (on average 1.2740740740740741) internal successors, (172), 135 states have internal predecessors, (172), 46 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-11-23 21:16:26,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 264 transitions. [2023-11-23 21:16:26,856 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 264 transitions. Word has length 175 [2023-11-23 21:16:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:26,857 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 264 transitions. [2023-11-23 21:16:26,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 264 transitions. [2023-11-23 21:16:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2023-11-23 21:16:26,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:26,860 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:26,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:16:27,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:16:27,069 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:27,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:27,070 INFO L85 PathProgramCache]: Analyzing trace with hash -901661045, now seen corresponding path program 1 times [2023-11-23 21:16:27,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:16:27,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215902066] [2023-11-23 21:16:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:27,071 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 [2023-11-23 21:16:27,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:16:27,072 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:16:27,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f7faa56-1073-4f35-a9d6-aba82e551285/bin/utaipan-verify-mE87zJ7Ire/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 (8)] Waiting until timeout for monitored process [2023-11-23 21:16:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:27,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:16:27,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:16:27,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2023-11-23 21:16:27,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-23 21:16:28,144 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2023-11-23 21:16:28,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:16:28,145 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:16:28,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215902066] [2023-11-23 21:16:28,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215902066] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:28,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:28,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-11-23 21:16:28,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939975574] [2023-11-23 21:16:28,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:28,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 21:16:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:16:28,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:16:28,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:16:28,148 INFO L87 Difference]: Start difference. First operand 184 states and 264 transitions. Second operand has 11 states, 11 states have (on average 5.7272727272727275) internal successors, (63), 11 states have internal predecessors, (63), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2023-11-23 21:16:30,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:34,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:37,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:40,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:42,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:44,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []