./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.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_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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_5752176e-00aa-46b9-afe2-dfa021bb776a/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 f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:34:54,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:34:54,937 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:34:54,948 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:34:54,949 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:34:55,014 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:34:55,014 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:34:55,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:34:55,016 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:34:55,017 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:34:55,017 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:34:55,018 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:34:55,018 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:34:55,019 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:34:55,019 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:34:55,020 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:34:55,020 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:34:55,021 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:34:55,021 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:34:55,022 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:34:55,023 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:34:55,023 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:34:55,024 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:34:55,024 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:34:55,025 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:34:55,025 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:34:55,026 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:34:55,026 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:34:55,027 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:34:55,027 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:34:55,027 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:34:55,028 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:34:55,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:34:55,028 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:34:55,029 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:34:55,029 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:34:55,038 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:34:55,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:55,039 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:34:55,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:34:55,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:34:55,041 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:34:55,041 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:34:55,041 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:34:55,041 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:34:55,042 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:34:55,042 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:34:55,042 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_5752176e-00aa-46b9-afe2-dfa021bb776a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c [2023-11-23 20:34:55,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:34:55,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:34:55,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:34:55,375 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:34:55,376 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:34:55,378 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-11-23 20:34:58,486 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:34:58,782 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:34:58,784 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-11-23 20:34:58,798 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data/4400b30d5/5fd8193054424e1ca4b451e6b8257c0f/FLAG3817739ca [2023-11-23 20:34:58,812 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data/4400b30d5/5fd8193054424e1ca4b451e6b8257c0f [2023-11-23 20:34:58,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:34:58,816 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:34:58,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:58,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:34:58,828 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:34:58,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:58" (1/1) ... [2023-11-23 20:34:58,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@396703b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:58, skipping insertion in model container [2023-11-23 20:34:58,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:34:58" (1/1) ... [2023-11-23 20:34:58,866 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:34:59,046 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_5752176e-00aa-46b9-afe2-dfa021bb776a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-11-23 20:34:59,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:59,120 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:34:59,134 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_5752176e-00aa-46b9-afe2-dfa021bb776a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-11-23 20:34:59,181 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:34:59,201 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:34:59,201 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59 WrapperNode [2023-11-23 20:34:59,201 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:34:59,203 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:59,203 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:34:59,203 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:34:59,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,228 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,299 INFO L138 Inliner]: procedures = 29, calls = 114, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 323 [2023-11-23 20:34:59,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:34:59,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:34:59,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:34:59,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:34:59,319 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,326 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,367 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,370 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,378 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:34:59,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:34:59,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:34:59,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:34:59,381 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (1/1) ... [2023-11-23 20:34:59,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:34:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:34:59,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:34:59,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:34:59,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:34:59,501 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:34:59,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:34:59,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:34:59,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:34:59,644 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:34:59,647 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:00,208 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:00,747 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:00,748 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:00,750 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:00 BoogieIcfgContainer [2023-11-23 20:35:00,750 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:00,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:00,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:00,756 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:00,756 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:34:58" (1/3) ... [2023-11-23 20:35:00,757 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6533e688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:00, skipping insertion in model container [2023-11-23 20:35:00,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:34:59" (2/3) ... [2023-11-23 20:35:00,758 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6533e688 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:00, skipping insertion in model container [2023-11-23 20:35:00,758 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:00" (3/3) ... [2023-11-23 20:35:00,760 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-0.i [2023-11-23 20:35:00,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:00,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:00,839 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:00,845 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;@7abc3b8c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:00,846 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:00,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 20:35:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-23 20:35:00,877 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:00,878 INFO L195 NwaCegarLoop]: trace histogram [8, 1, 1, 1, 1, 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 20:35:00,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:00,884 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:00,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1526120726, now seen corresponding path program 1 times [2023-11-23 20:35:00,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:35:00,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430311886] [2023-11-23 20:35:00,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:00,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:35:01,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:01,606 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:35:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:35:01,985 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:35:01,987 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:35:01,988 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:35:01,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:35:01,995 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 20:35:02,000 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:35:02,033 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-23 20:35:02,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated [2023-11-23 20:35:02,035 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-11-23 20:35:02,036 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated [2023-11-23 20:35:02,037 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-11-23 20:35:02,037 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated [2023-11-23 20:35:02,038 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-23 20:35:02,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated [2023-11-23 20:35:02,039 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated [2023-11-23 20:35:02,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-11-23 20:35:02,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-23 20:35:02,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-23 20:35:02,040 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-23 20:35:02,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-11-23 20:35:02,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-23 20:35:02,041 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated [2023-11-23 20:35:02,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated [2023-11-23 20:35:02,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated [2023-11-23 20:35:02,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated [2023-11-23 20:35:02,042 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-11-23 20:35:02,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated [2023-11-23 20:35:02,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated [2023-11-23 20:35:02,043 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-23 20:35:02,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-23 20:35:02,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated [2023-11-23 20:35:02,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated [2023-11-23 20:35:02,044 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-23 20:35:02,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-23 20:35:02,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-11-23 20:35:02,045 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated [2023-11-23 20:35:02,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated [2023-11-23 20:35:02,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated [2023-11-23 20:35:02,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated [2023-11-23 20:35:02,046 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated [2023-11-23 20:35:02,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated [2023-11-23 20:35:02,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem45 could not be translated [2023-11-23 20:35:02,047 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-23 20:35:02,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem49 could not be translated [2023-11-23 20:35:02,048 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-23 20:35:02,049 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem50 could not be translated [2023-11-23 20:35:02,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:35:02 BoogieIcfgContainer [2023-11-23 20:35:02,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:35:02,065 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:35:02,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:35:02,066 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:35:02,066 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:00" (3/4) ... [2023-11-23 20:35:02,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:35:02,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:35:02,071 INFO L158 Benchmark]: Toolchain (without parser) took 3254.51ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 153.0MB in the beginning and 170.5MB in the end (delta: -17.5MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2023-11-23 20:35:02,072 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory was 102.4MB in the beginning and 102.3MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:02,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 384.43ms. Allocated memory is still 184.5MB. Free memory was 152.8MB in the beginning and 141.8MB in the end (delta: 11.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:02,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.43ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 139.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:35:02,074 INFO L158 Benchmark]: Boogie Preprocessor took 78.79ms. Allocated memory is still 184.5MB. Free memory was 139.0MB in the beginning and 136.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:35:02,075 INFO L158 Benchmark]: RCFGBuilder took 1370.39ms. Allocated memory is still 184.5MB. Free memory was 136.2MB in the beginning and 83.6MB in the end (delta: 52.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-23 20:35:02,076 INFO L158 Benchmark]: TraceAbstraction took 1312.59ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 82.8MB in the beginning and 171.5MB in the end (delta: -88.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2023-11-23 20:35:02,076 INFO L158 Benchmark]: Witness Printer took 4.81ms. Allocated memory is still 222.3MB. Free memory was 171.5MB in the beginning and 170.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:35:02,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 130.0MB. Free memory was 102.4MB in the beginning and 102.3MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 384.43ms. Allocated memory is still 184.5MB. Free memory was 152.8MB in the beginning and 141.8MB in the end (delta: 11.0MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.43ms. Allocated memory is still 184.5MB. Free memory was 141.8MB in the beginning and 139.0MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.79ms. Allocated memory is still 184.5MB. Free memory was 139.0MB in the beginning and 136.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1370.39ms. Allocated memory is still 184.5MB. Free memory was 136.2MB in the beginning and 83.6MB in the end (delta: 52.6MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1312.59ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 82.8MB in the beginning and 171.5MB in the end (delta: -88.7MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Witness Printer took 4.81ms. Allocated memory is still 222.3MB. Free memory was 171.5MB in the beginning and 170.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem27 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem28 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem30 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem31 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem36 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem34 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short39 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short38 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem37 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem33 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 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~short43 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem44 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem41 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short46 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short47 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem42 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem45 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~mem50 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~mem50 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 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22-L24] unsigned char BOOL_unsigned_char_Array_0[2] = { 1, 1 }; [L25-L27] double double_Array_0[2][2] = { {5.25, 128.2}, {15.4, 25.8} }; [L28-L30] unsigned char unsigned_char_Array_0[2] = { 1, 100 }; [L31-L33] unsigned short int unsigned_short_int_Array_0[1] = { 5 }; [L34] double last_1_double_Array_0_0__0_ = 5.25; [L35] unsigned char last_1_unsigned_char_Array_0_1_ = 100; [L36] unsigned short int last_1_unsigned_short_int_Array_0_0_ = 5; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] CALL updateLastVariables() [L87] EXPR double_Array_0[0][0] [L87] last_1_double_Array_0_0__0_ = double_Array_0[0][0] [L88] EXPR unsigned_char_Array_0[1] [L88] last_1_unsigned_char_Array_0_1_ = unsigned_char_Array_0[1] [L89] EXPR unsigned_short_int_Array_0[0] [L89] last_1_unsigned_short_int_Array_0_0_ = unsigned_short_int_Array_0[0] [L99] RET updateLastVariables() [L100] CALL updateVariables() [L72] BOOL_unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L73] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L73] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] EXPR BOOL_unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L74] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[0] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L75] BOOL_unsigned_char_Array_0[1] = __VERIFIER_nondet_uchar() [L76] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L76] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] EXPR BOOL_unsigned_char_Array_0[1] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L77] CALL assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(BOOL_unsigned_char_Array_0[1] <= 1) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L78] double_Array_0[1][0] = __VERIFIER_nondet_double() [L79] EXPR double_Array_0[1][0] [L79] EXPR double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F [L79] EXPR (double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F ) [L79] EXPR double_Array_0[1][0] [L79] EXPR double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F [L79] EXPR double_Array_0[1][0] [L79] EXPR double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F [L79] EXPR (double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L79] CALL assume_abort_if_not((double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not((double_Array_0[1][0] >= 0.0F && double_Array_0[1][0] <= -1.0e-20F) || (double_Array_0[1][0] <= 9223372.036854765600e+12F && double_Array_0[1][0] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L80] double_Array_0[0][1] = __VERIFIER_nondet_double() [L81] EXPR double_Array_0[0][1] [L81] EXPR double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F [L81] EXPR double_Array_0[0][1] [L81] EXPR double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F [L81] EXPR (double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854765600e+12F && double_Array_0[0][1] >= 1.0e-20F ) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L81] CALL assume_abort_if_not((double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854765600e+12F && double_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L81] RET assume_abort_if_not((double_Array_0[0][1] >= 0.0F && double_Array_0[0][1] <= -1.0e-20F) || (double_Array_0[0][1] <= 9223372.036854765600e+12F && double_Array_0[0][1] >= 1.0e-20F )) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L82] unsigned_char_Array_0[0] = __VERIFIER_nondet_uchar() [L83] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L83] CALL assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(unsigned_char_Array_0[0] >= 0) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] EXPR unsigned_char_Array_0[0] VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L84] CALL assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=1, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(unsigned_char_Array_0[0] <= 254) VAL [BOOL_unsigned_char_Array_0={4:0}, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L100] RET updateVariables() [L101] CALL step() [L40] BOOL_unsigned_char_Array_0[0] [L40] COND TRUE BOOL_unsigned_char_Array_0[0] [L41] EXPR double_Array_0[1][0] [L41] EXPR double_Array_0[0][1] [L41] COND TRUE (double_Array_0[1][0] * (double_Array_0[0][1] - 5.3)) <= last_1_double_Array_0_0__0_ [L42] unsigned_short_int_Array_0[0] = last_1_unsigned_char_Array_0_1_ [L45] COND FALSE !((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) [L50] EXPR BOOL_unsigned_char_Array_0[1] [L50] COND TRUE ! BOOL_unsigned_char_Array_0[1] [L51] EXPR double_Array_0[0][1] [L51] EXPR double_Array_0[1][0] [L51] double_Array_0[1][1] = (double_Array_0[0][1] - double_Array_0[1][0]) [L55] EXPR double_Array_0[0][1] [L55] EXPR double_Array_0[1][0] [L55] EXPR double_Array_0[1][1] [L55] EXPR double_Array_0[1][1] [L55] COND TRUE (double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1] [L56] BOOL_unsigned_char_Array_0[1] [L56] COND FALSE !(BOOL_unsigned_char_Array_0[1]) [L65] EXPR double_Array_0[0][1] [L65] double_Array_0[0][0] = double_Array_0[0][1] [L101] RET step() [L102] CALL, EXPR property() [L92] EXPR BOOL_unsigned_char_Array_0[1] [L92] EXPR (! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1]))))) [L92] EXPR double_Array_0[1][1] [L92] EXPR double_Array_0[0][1] [L92] EXPR double_Array_0[1][0] [L92] EXPR (! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1]))))) [L92] EXPR ((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) [L92] EXPR double_Array_0[0][1] [L92] EXPR double_Array_0[1][0] [L92] EXPR double_Array_0[1][1] [L92] EXPR double_Array_0[1][1] [L92] EXPR ((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR BOOL_unsigned_char_Array_0[1] [L92] EXPR BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR double_Array_0[0][0] [L92] EXPR double_Array_0[0][1] [L92] EXPR BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR ((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])) [L92] EXPR ((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) [L92] EXPR (((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])))) && (((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) ? ((last_1_unsigned_short_int_Array_0_0_ > last_1_unsigned_short_int_Array_0_0_) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1) [L92] EXPR ((((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])))) && (((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) ? ((last_1_unsigned_short_int_Array_0_0_ > last_1_unsigned_short_int_Array_0_0_) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (((double_Array_0[1][0] * (double_Array_0[0][1] - 5.3)) <= last_1_double_Array_0_0__0_) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) last_1_unsigned_char_Array_0_1_)) : 1) : 1) [L92-L93] return ((((! BOOL_unsigned_char_Array_0[1]) ? (double_Array_0[1][1] == ((double) (double_Array_0[0][1] - double_Array_0[1][0]))) : (double_Array_0[1][1] == ((double) ((((16.2) < (double_Array_0[0][1])) ? (16.2) : (double_Array_0[0][1])))))) && (((double_Array_0[0][1] + (double_Array_0[1][0] + double_Array_0[1][1])) != double_Array_0[1][1]) ? (BOOL_unsigned_char_Array_0[1] ? (((- unsigned_short_int_Array_0[0]) <= unsigned_char_Array_0[1]) ? (BOOL_unsigned_char_Array_0[0] ? (double_Array_0[0][0] == ((double) double_Array_0[1][0])) : 1) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1]))) : (double_Array_0[0][0] == ((double) double_Array_0[0][1])))) && (((last_1_unsigned_short_int_Array_0_0_ + last_1_unsigned_short_int_Array_0_0_) < last_1_unsigned_short_int_Array_0_0_) ? ((last_1_unsigned_short_int_Array_0_0_ > last_1_unsigned_short_int_Array_0_0_) ? (unsigned_char_Array_0[1] == ((unsigned char) unsigned_char_Array_0[0])) : 1) : 1)) && (BOOL_unsigned_char_Array_0[0] ? (((double_Array_0[1][0] * (double_Array_0[0][1] - 5.3)) <= last_1_double_Array_0_0__0_) ? (unsigned_short_int_Array_0[0] == ((unsigned short int) last_1_unsigned_char_Array_0_1_)) : 1) : 1) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] [L19] reach_error() VAL [BOOL_unsigned_char_Array_0={4:0}, \old(cond)=0, cond=0, double_Array_0={5:0}, isInitial=1, last_1_double_Array_0_0__0_=21/4, last_1_unsigned_char_Array_0_1_=100, last_1_unsigned_short_int_Array_0_0_=5, unsigned_char_Array_0={6:0}, unsigned_short_int_Array_0={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 8, 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=25occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 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 20:35:02,139 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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_5752176e-00aa-46b9-afe2-dfa021bb776a/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 f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:35:04,925 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:35:05,063 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:35:05,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:35:05,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:35:05,100 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:35:05,101 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:35:05,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:35:05,103 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:35:05,103 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:35:05,104 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:35:05,104 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:35:05,105 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:35:05,106 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:35:05,106 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:35:05,107 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:35:05,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:35:05,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:35:05,109 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:35:05,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:35:05,110 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:35:05,110 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:35:05,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:35:05,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:35:05,112 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:35:05,112 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:35:05,112 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:35:05,113 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:35:05,113 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:35:05,114 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:35:05,114 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:35:05,114 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:35:05,115 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:35:05,115 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:35:05,115 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:05,116 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:35:05,116 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:35:05,116 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:35:05,116 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:35:05,116 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:35:05,117 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:35:05,117 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:35:05,117 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:35:05,117 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:35:05,118 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_5752176e-00aa-46b9-afe2-dfa021bb776a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f190a6c4b0edbc49af141a983db7689f2287405b384242554734ee34095f2f5c [2023-11-23 20:35:05,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:35:05,555 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:35:05,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:35:05,559 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:35:05,560 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:35:05,561 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-11-23 20:35:08,934 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:35:09,238 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:35:09,239 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i [2023-11-23 20:35:09,250 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data/76236bccf/712b8f66e65c4763afc8e4d6f932cd97/FLAG469b9082d [2023-11-23 20:35:09,268 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/data/76236bccf/712b8f66e65c4763afc8e4d6f932cd97 [2023-11-23 20:35:09,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:35:09,274 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:35:09,275 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:09,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:35:09,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:35:09,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f125e01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09, skipping insertion in model container [2023-11-23 20:35:09,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,317 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:35:09,524 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_5752176e-00aa-46b9-afe2-dfa021bb776a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-11-23 20:35:09,601 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:09,630 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:35:09,657 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_5752176e-00aa-46b9-afe2-dfa021bb776a/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-a_file-0.i[915,928] [2023-11-23 20:35:09,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:35:09,794 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:35:09,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09 WrapperNode [2023-11-23 20:35:09,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:35:09,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:09,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:35:09,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:35:09,807 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,850 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,897 INFO L138 Inliner]: procedures = 33, calls = 114, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 323 [2023-11-23 20:35:09,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:35:09,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:35:09,899 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:35:09,899 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:35:09,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,942 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:09,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:10,003 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:10,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:10,010 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:10,032 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:35:10,033 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:35:10,033 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:35:10,033 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:35:10,034 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (1/1) ... [2023-11-23 20:35:10,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:35:10,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:35:10,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:35:10,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:35:10,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:35:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-23 20:35:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-23 20:35:10,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-23 20:35:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2023-11-23 20:35:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:35:10,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-23 20:35:10,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2023-11-23 20:35:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 20:35:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 20:35:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:35:10,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:35:10,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-23 20:35:10,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2023-11-23 20:35:10,321 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:35:10,324 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:35:23,586 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:35:23,662 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:35:23,662 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:35:23,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:23 BoogieIcfgContainer [2023-11-23 20:35:23,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:35:23,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:35:23,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:35:23,670 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:35:23,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:35:09" (1/3) ... [2023-11-23 20:35:23,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267c4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:23, skipping insertion in model container [2023-11-23 20:35:23,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:35:09" (2/3) ... [2023-11-23 20:35:23,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@267c4be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:35:23, skipping insertion in model container [2023-11-23 20:35:23,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:35:23" (3/3) ... [2023-11-23 20:35:23,674 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-a_file-0.i [2023-11-23 20:35:23,695 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:35:23,695 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:35:23,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:35:23,750 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;@75024765, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:35:23,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:35:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 67 states have (on average 1.507462686567164) internal successors, (101), 68 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 20:35:23,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:35:23,768 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:23,769 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:23,770 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:23,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:23,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1319971083, now seen corresponding path program 1 times [2023-11-23 20:35:23,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:23,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397308944] [2023-11-23 20:35:23,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:23,790 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 20:35:23,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:23,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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 20:35:23,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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 20:35:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:24,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:35:24,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-23 20:35:24,487 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:24,488 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:24,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397308944] [2023-11-23 20:35:24,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397308944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:24,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:24,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:35:24,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416029094] [2023-11-23 20:35:24,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:24,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:35:24,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:24,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:35:24,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:35:24,551 INFO L87 Difference]: Start difference. First operand has 78 states, 67 states have (on average 1.507462686567164) internal successors, (101), 68 states have internal predecessors, (101), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 20:35:24,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:35:24,621 INFO L93 Difference]: Finished difference Result 150 states and 235 transitions. [2023-11-23 20:35:24,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:35:24,624 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-11-23 20:35:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:35:24,636 INFO L225 Difference]: With dead ends: 150 [2023-11-23 20:35:24,636 INFO L226 Difference]: Without dead ends: 73 [2023-11-23 20:35:24,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 72 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 20:35:24,646 INFO L413 NwaCegarLoop]: 99 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, 99 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 20:35:24,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:35:24,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-23 20:35:24,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-23 20:35:24,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.380952380952381) internal successors, (87), 63 states have internal predecessors, (87), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 20:35:24,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 103 transitions. [2023-11-23 20:35:24,723 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 103 transitions. Word has length 73 [2023-11-23 20:35:24,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:35:24,724 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 103 transitions. [2023-11-23 20:35:24,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 20:35:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 103 transitions. [2023-11-23 20:35:24,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-23 20:35:24,728 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:35:24,729 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:35:24,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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)] Ended with exit code 0 [2023-11-23 20:35:24,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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 20:35:24,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:35:24,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:35:24,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2130998057, now seen corresponding path program 1 times [2023-11-23 20:35:24,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:35:24,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [878680333] [2023-11-23 20:35:24,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:35:24,947 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 20:35:24,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:35:24,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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 20:35:24,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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 20:35:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:35:25,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-23 20:35:25,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:35:25,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 20:35:25,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 173 treesize of output 65 [2023-11-23 20:35:26,055 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-11-23 20:35:26,056 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:35:26,056 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:35:26,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [878680333] [2023-11-23 20:35:26,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [878680333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:35:26,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:35:26,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-23 20:35:26,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946406121] [2023-11-23 20:35:26,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:35:26,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-23 20:35:26,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:35:26,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-23 20:35:26,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-23 20:35:26,062 INFO L87 Difference]: Start difference. First operand 73 states and 103 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 20:35:28,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:30,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:32,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:34,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:36,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:38,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:40,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:42,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:44,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:45,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:47,450 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:48,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:51,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:53,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:56,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:35:58,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:00,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:02,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:02,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:02,163 INFO L93 Difference]: Finished difference Result 151 states and 214 transitions. [2023-11-23 20:36:02,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 20:36:02,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2023-11-23 20:36:02,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:02,197 INFO L225 Difference]: With dead ends: 151 [2023-11-23 20:36:02,198 INFO L226 Difference]: Without dead ends: 79 [2023-11-23 20:36:02,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-11-23 20:36:02,200 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 97 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 4 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:02,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 255 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 143 Invalid, 12 Unknown, 0 Unchecked, 35.8s Time] [2023-11-23 20:36:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-23 20:36:02,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2023-11-23 20:36:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-23 20:36:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2023-11-23 20:36:02,213 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 73 [2023-11-23 20:36:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:02,214 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2023-11-23 20:36:02,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 20:36:02,215 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2023-11-23 20:36:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-23 20:36:02,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:02,217 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:36:02,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5752176e-00aa-46b9-afe2-dfa021bb776a/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