./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a25dd997c8fa9a929b53027dc2df9242a939d9c39053d10361ef45987787161 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:06,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:06,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:52:06,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:06,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:06,389 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:06,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:06,390 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:06,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:06,396 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:06,397 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:06,398 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:06,399 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:06,400 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:52:06,401 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:06,401 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:06,402 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:52:06,402 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:52:06,403 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:06,403 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:52:06,404 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:52:06,404 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:52:06,405 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:06,405 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:06,405 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:06,406 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:52:06,406 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:06,418 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:06,419 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:06,419 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:06,420 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:06,421 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:06,421 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:06,421 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:06,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:06,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:06,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:06,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:06,423 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:06,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:06,423 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:52:06,424 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:52:06,425 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:06,425 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:06,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:06,426 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_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a25dd997c8fa9a929b53027dc2df9242a939d9c39053d10361ef45987787161 [2023-11-12 00:52:06,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:06,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:06,825 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:06,826 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:06,827 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:06,829 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i [2023-11-12 00:52:09,989 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:10,307 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:10,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i [2023-11-12 00:52:10,318 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data/003b69884/eb3a0b2a328043a0af4d36eae2efacdd/FLAGaf1493e54 [2023-11-12 00:52:10,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data/003b69884/eb3a0b2a328043a0af4d36eae2efacdd [2023-11-12 00:52:10,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:10,346 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:10,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:10,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:10,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:10,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cf17a1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10, skipping insertion in model container [2023-11-12 00:52:10,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:10,596 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_726f1c6e-04bf-44a6-82fd-b77a393ebb01/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i[913,926] [2023-11-12 00:52:10,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:10,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:10,678 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_726f1c6e-04bf-44a6-82fd-b77a393ebb01/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i[913,926] [2023-11-12 00:52:10,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:10,744 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:10,744 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10 WrapperNode [2023-11-12 00:52:10,744 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:10,746 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:10,746 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:10,746 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:10,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,819 INFO L138 Inliner]: procedures = 26, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 99 [2023-11-12 00:52:10,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:10,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:10,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:10,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:10,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,832 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,850 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:10,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:10,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:10,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:10,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (1/1) ... [2023-11-12 00:52:10,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:10,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:10,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:10,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:10,966 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:52:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:52:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:52:10,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:10,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:11,061 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:11,064 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:11,386 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:11,538 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:11,551 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:52:11,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:11 BoogieIcfgContainer [2023-11-12 00:52:11,554 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:11,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:11,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:11,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:11,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:10" (1/3) ... [2023-11-12 00:52:11,564 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa10c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:11, skipping insertion in model container [2023-11-12 00:52:11,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:10" (2/3) ... [2023-11-12 00:52:11,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fa10c71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:11, skipping insertion in model container [2023-11-12 00:52:11,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:11" (3/3) ... [2023-11-12 00:52:11,568 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-54.i [2023-11-12 00:52:11,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:11,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:11,637 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:11,646 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;@71bf700a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:11,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:11,653 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 00:52:11,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-12 00:52:11,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:11,667 INFO L195 NwaCegarLoop]: trace histogram [12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:11,668 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:11,675 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash 1364862039, now seen corresponding path program 1 times [2023-11-12 00:52:11,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:52:11,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979760454] [2023-11-12 00:52:11,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:11,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:52:12,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:52:12,164 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:52:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:52:12,308 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:52:12,310 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:52:12,312 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:52:12,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:52:12,319 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:52:12,324 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:52:12,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:52:12 BoogieIcfgContainer [2023-11-12 00:52:12,392 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:52:12,395 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:52:12,395 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:52:12,396 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:52:12,396 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:11" (3/4) ... [2023-11-12 00:52:12,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:52:12,404 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:52:12,406 INFO L158 Benchmark]: Toolchain (without parser) took 2058.79ms. Allocated memory was 155.2MB in the beginning and 220.2MB in the end (delta: 65.0MB). Free memory was 115.1MB in the beginning and 172.6MB in the end (delta: -57.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2023-11-12 00:52:12,406 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:12,408 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.96ms. Allocated memory is still 155.2MB. Free memory was 115.0MB in the beginning and 102.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:52:12,409 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.43ms. Allocated memory is still 155.2MB. Free memory was 102.6MB in the beginning and 99.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:52:12,410 INFO L158 Benchmark]: Boogie Preprocessor took 47.63ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 98.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:12,416 INFO L158 Benchmark]: RCFGBuilder took 683.04ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 72.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-12 00:52:12,418 INFO L158 Benchmark]: TraceAbstraction took 834.50ms. Allocated memory was 155.2MB in the beginning and 220.2MB in the end (delta: 65.0MB). Free memory was 71.6MB in the beginning and 172.6MB in the end (delta: -101.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:12,418 INFO L158 Benchmark]: Witness Printer took 9.11ms. Allocated memory is still 220.2MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:52:12,427 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 155.2MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.96ms. Allocated memory is still 155.2MB. Free memory was 115.0MB in the beginning and 102.6MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.43ms. Allocated memory is still 155.2MB. Free memory was 102.6MB in the beginning and 99.8MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.63ms. Allocated memory is still 155.2MB. Free memory was 99.8MB in the beginning and 98.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 683.04ms. Allocated memory is still 155.2MB. Free memory was 98.4MB in the beginning and 72.1MB in the end (delta: 26.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 834.50ms. Allocated memory was 155.2MB in the beginning and 220.2MB in the end (delta: 65.0MB). Free memory was 71.6MB in the beginning and 172.6MB in the end (delta: -101.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 9.11ms. Allocated memory is still 220.2MB. Free memory is still 172.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 46, overapproximation of someBinaryFLOATComparisonOperation at line 92. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 16; [L23] unsigned char var_1_3 = 10; [L24] unsigned char var_1_4 = 0; [L25] unsigned char var_1_6 = 1; [L26] unsigned char var_1_9 = 0; [L27] unsigned char var_1_10 = 0; [L28] double var_1_11 = 9.75; [L29] double var_1_12 = 5.5; [L30] double var_1_13 = 4.1; [L31] float var_1_14 = 9.8; [L32] signed char var_1_15 = 25; [L33] signed char var_1_16 = 2; [L96] isInitial = 1 [L97] FCALL initially() [L98] COND TRUE 1 [L99] FCALL updateLastVariables() [L100] CALL updateVariables() [L69] var_1_3 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_4=0, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_4=0, var_1_6=1, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_3 <= 254) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_9=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_3 <= 254) VAL [isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=1, var_1_9=0] [L72] var_1_6 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L74] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L75] var_1_9 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L78] var_1_10 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L80] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=11/2, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L81] var_1_12 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=41/10, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L83] var_1_13 = __VERIFIER_nondet_double() [L84] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=49/5, var_1_15=25, var_1_16=2, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L85] var_1_16 = __VERIFIER_nondet_char() [L86] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=49/5, var_1_15=25, var_1_16=-127, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=49/5, var_1_15=25, var_1_16=-127, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L87] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=49/5, var_1_15=25, var_1_16=-127, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=49/5, var_1_15=25, var_1_16=-127, var_1_1=16, var_1_3=4, var_1_4=0, var_1_6=0, var_1_9=0] [L100] RET updateVariables() [L101] CALL step() [L37] var_1_14 = var_1_12 [L38] var_1_15 = var_1_16 [L39] signed long int stepLocal_0 = -4; [L40] COND TRUE stepLocal_0 >= var_1_15 [L41] var_1_1 = ((((var_1_3) < (((((1) < 0 ) ? -(1) : (1))))) ? (var_1_3) : (((((1) < 0 ) ? -(1) : (1)))))) [L43] unsigned char stepLocal_2 = var_1_3; [L44] COND FALSE !(\read(var_1_9)) [L53] signed long int stepLocal_1 = (((10) > (var_1_1)) ? (10) : (var_1_1)); [L54] COND FALSE !((8 * var_1_1) == stepLocal_1) [L65] var_1_4 = var_1_10 [L101] RET step() [L102] CALL, EXPR property() [L92-L93] return (((((-4 >= var_1_15) ? (var_1_1 == ((unsigned char) ((((var_1_3) < (((((1) < 0 ) ? -(1) : (1))))) ? (var_1_3) : (((((1) < 0 ) ? -(1) : (1)))))))) : 1) && (((8 * var_1_1) == ((((10) > (var_1_1)) ? (10) : (var_1_1)))) ? (var_1_6 ? (var_1_4 == ((unsigned char) ((var_1_11 < var_1_14) && var_1_9))) : ((var_1_14 >= ((((var_1_11) < 0 ) ? -(var_1_11) : (var_1_11)))) ? (var_1_4 == ((unsigned char) (! var_1_9))) : (var_1_4 == ((unsigned char) 0)))) : (var_1_4 == ((unsigned char) var_1_10)))) && (var_1_9 ? ((var_1_3 > var_1_15) ? (var_1_11 == ((double) ((((((((var_1_12) > (16.5)) ? (var_1_12) : (16.5)))) > (var_1_13)) ? (((((var_1_12) > (16.5)) ? (var_1_12) : (16.5)))) : (var_1_13))))) : (var_1_10 ? (var_1_11 == ((double) var_1_12)) : 1)) : 1)) && (var_1_14 == ((float) var_1_12))) && (var_1_15 == ((signed char) var_1_16)) ; [L102] RET, EXPR property() [L102] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=39/4, var_1_15=-127, var_1_16=-127, var_1_1=1, var_1_3=4, var_1_4=1, var_1_6=0, var_1_9=0] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=1, var_1_11=39/4, var_1_12=39/4, var_1_13=39/4, var_1_14=39/4, var_1_15=-127, var_1_16=-127, var_1_1=1, var_1_3=4, var_1_4=1, var_1_6=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 12, 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=28occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 00:52:12,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a25dd997c8fa9a929b53027dc2df9242a939d9c39053d10361ef45987787161 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:52:15,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:52:15,220 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-12 00:52:15,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:52:15,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:52:15,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:52:15,296 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:52:15,296 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:52:15,297 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:52:15,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:52:15,303 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:52:15,303 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:52:15,304 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:52:15,305 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:52:15,306 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:52:15,306 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:52:15,307 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:52:15,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:52:15,308 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:52:15,309 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:52:15,309 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:52:15,310 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:52:15,310 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:52:15,311 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:52:15,311 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:52:15,312 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:52:15,312 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:52:15,312 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:52:15,313 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:52:15,313 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:52:15,315 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:52:15,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:52:15,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:52:15,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:15,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:52:15,317 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:52:15,317 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:52:15,317 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:52:15,317 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:52:15,318 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:52:15,319 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:52:15,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:52:15,319 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_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a25dd997c8fa9a929b53027dc2df9242a939d9c39053d10361ef45987787161 [2023-11-12 00:52:15,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:52:15,807 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:52:15,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:52:15,811 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:52:15,812 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:52:15,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i [2023-11-12 00:52:18,935 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:52:19,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:52:19,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i [2023-11-12 00:52:19,220 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data/ca4f4cd58/d9c00b349b704345a75e49139ad9671c/FLAGef2e0b609 [2023-11-12 00:52:19,239 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/data/ca4f4cd58/d9c00b349b704345a75e49139ad9671c [2023-11-12 00:52:19,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:52:19,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:52:19,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:19,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:52:19,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:52:19,258 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4711685b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19, skipping insertion in model container [2023-11-12 00:52:19,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:52:19,492 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_726f1c6e-04bf-44a6-82fd-b77a393ebb01/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i[913,926] [2023-11-12 00:52:19,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:19,585 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:52:19,601 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_726f1c6e-04bf-44a6-82fd-b77a393ebb01/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-54.i[913,926] [2023-11-12 00:52:19,638 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:52:19,655 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:52:19,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19 WrapperNode [2023-11-12 00:52:19,655 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:52:19,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:19,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:52:19,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:52:19,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,687 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,727 INFO L138 Inliner]: procedures = 27, calls = 25, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 98 [2023-11-12 00:52:19,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:52:19,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:52:19,732 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:52:19,732 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:52:19,741 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,756 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,777 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,796 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,798 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,804 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:52:19,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:52:19,805 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:52:19,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:52:19,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (1/1) ... [2023-11-12 00:52:19,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:52:19,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:52:19,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:52:19,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:52:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:52:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:52:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:52:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:52:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:52:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:52:19,988 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:52:19,990 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:52:20,893 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:52:20,899 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:52:20,900 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:52:20,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:20 BoogieIcfgContainer [2023-11-12 00:52:20,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:52:20,904 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:52:20,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:52:20,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:52:20,908 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:52:19" (1/3) ... [2023-11-12 00:52:20,909 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a3daac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:20, skipping insertion in model container [2023-11-12 00:52:20,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:52:19" (2/3) ... [2023-11-12 00:52:20,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a3daac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:52:20, skipping insertion in model container [2023-11-12 00:52:20,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:52:20" (3/3) ... [2023-11-12 00:52:20,911 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-54.i [2023-11-12 00:52:20,932 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:52:20,932 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:52:20,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:52:20,989 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;@709be224, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:52:20,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:52:20,995 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 00:52:21,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 00:52:21,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:21,010 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:21,013 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:21,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash -187636468, now seen corresponding path program 1 times [2023-11-12 00:52:21,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:21,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824072739] [2023-11-12 00:52:21,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:21,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:21,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:21,044 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:52:21,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-12 00:52:21,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:21,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 00:52:21,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:52:21,481 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2023-11-12 00:52:21,482 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:52:21,483 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:52:21,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824072739] [2023-11-12 00:52:21,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824072739] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:52:21,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:52:21,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:52:21,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212017708] [2023-11-12 00:52:21,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:52:21,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 00:52:21,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:52:21,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 00:52:21,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:52:21,546 INFO L87 Difference]: Start difference. First operand has 47 states, 32 states have (on average 1.375) internal successors, (44), 33 states have internal predecessors, (44), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:52:21,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:52:21,590 INFO L93 Difference]: Finished difference Result 87 states and 142 transitions. [2023-11-12 00:52:21,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 00:52:21,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 81 [2023-11-12 00:52:21,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:52:21,604 INFO L225 Difference]: With dead ends: 87 [2023-11-12 00:52:21,604 INFO L226 Difference]: Without dead ends: 43 [2023-11-12 00:52:21,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 00:52:21,613 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:52:21,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:52:21,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-11-12 00:52:21,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2023-11-12 00:52:21,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-12 00:52:21,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 61 transitions. [2023-11-12 00:52:21,672 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 61 transitions. Word has length 81 [2023-11-12 00:52:21,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:52:21,673 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 61 transitions. [2023-11-12 00:52:21,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-12 00:52:21,674 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2023-11-12 00:52:21,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-12 00:52:21,681 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:52:21,682 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:52:21,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:52:21,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:21,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:52:21,896 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:52:21,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1254507704, now seen corresponding path program 1 times [2023-11-12 00:52:21,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:52:21,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327059330] [2023-11-12 00:52:21,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:52:21,898 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-12 00:52:21,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:52:21,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-12 00:52:21,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_726f1c6e-04bf-44a6-82fd-b77a393ebb01/bin/utaipan-verify-NcY6lQBIFX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-12 00:52:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:52:22,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-12 00:52:22,266 INFO L285 TraceCheckSpWp]: Computing forward predicates...