./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/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_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/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_71e12237-ad4c-43a9-aac4-df95e8fb7184/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 857eb6400730c27462335624c39a58effd99f93ee6f972a1d8a0651a358303ab --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:43:18,922 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:43:18,994 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:43:19,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:43:19,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:43:19,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:43:19,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:43:19,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:43:19,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:43:19,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:43:19,033 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:43:19,034 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:43:19,034 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:43:19,035 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:43:19,036 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:43:19,036 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:43:19,037 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:43:19,038 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:43:19,038 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:43:19,039 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:43:19,040 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:43:19,040 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:43:19,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:43:19,042 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:43:19,042 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:43:19,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:43:19,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:43:19,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:43:19,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:43:19,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:43:19,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:43:19,046 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:43:19,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:43:19,047 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:43:19,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:43:19,047 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:43:19,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:19,048 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:43:19,048 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:43:19,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:43:19,049 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:43:19,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:43:19,050 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:43:19,050 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:43:19,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:43:19,051 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_71e12237-ad4c-43a9-aac4-df95e8fb7184/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 857eb6400730c27462335624c39a58effd99f93ee6f972a1d8a0651a358303ab [2023-11-12 00:43:19,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:43:19,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:43:19,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:43:19,323 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:43:19,324 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:43:19,325 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i [2023-11-12 00:43:22,496 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:43:22,794 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:43:22,794 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i [2023-11-12 00:43:22,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/data/686399eab/83fe88ae226f4e72bc2f3fb3021ced28/FLAG2aa370999 [2023-11-12 00:43:22,826 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/data/686399eab/83fe88ae226f4e72bc2f3fb3021ced28 [2023-11-12 00:43:22,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:43:22,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:43:22,840 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:22,840 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:43:22,846 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:43:22,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:22" (1/1) ... [2023-11-12 00:43:22,850 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76957d05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:22, skipping insertion in model container [2023-11-12 00:43:22,850 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:43:22" (1/1) ... [2023-11-12 00:43:22,891 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:43:23,060 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_71e12237-ad4c-43a9-aac4-df95e8fb7184/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i[913,926] [2023-11-12 00:43:23,103 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:23,116 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:43:23,130 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_71e12237-ad4c-43a9-aac4-df95e8fb7184/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-89.i[913,926] [2023-11-12 00:43:23,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:43:23,174 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:43:23,174 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23 WrapperNode [2023-11-12 00:43:23,174 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:43:23,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:23,176 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:43:23,176 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:43:23,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,234 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 144 [2023-11-12 00:43:23,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:43:23,236 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:43:23,236 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:43:23,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:43:23,248 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,256 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,280 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,290 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,295 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,299 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:43:23,300 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:43:23,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:43:23,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:43:23,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (1/1) ... [2023-11-12 00:43:23,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:43:23,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:23,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:43:23,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:43:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:43:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 00:43:23,406 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 00:43:23,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:43:23,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:43:23,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:43:23,497 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:43:23,499 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:43:23,966 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:43:24,364 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:43:24,364 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:43:24,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:24 BoogieIcfgContainer [2023-11-12 00:43:24,367 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:43:24,370 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:43:24,370 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:43:24,373 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:43:24,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:43:22" (1/3) ... [2023-11-12 00:43:24,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685a79b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:24, skipping insertion in model container [2023-11-12 00:43:24,375 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:43:23" (2/3) ... [2023-11-12 00:43:24,378 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@685a79b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:43:24, skipping insertion in model container [2023-11-12 00:43:24,379 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:24" (3/3) ... [2023-11-12 00:43:24,380 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-89.i [2023-11-12 00:43:24,401 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:43:24,401 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:43:24,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:43:24,464 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;@57514789, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:43:24,465 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:43:24,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-12 00:43:24,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-12 00:43:24,485 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:43:24,485 INFO L195 NwaCegarLoop]: trace histogram [13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:43:24,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:43:24,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:43:24,491 INFO L85 PathProgramCache]: Analyzing trace with hash 813173853, now seen corresponding path program 1 times [2023-11-12 00:43:24,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:43:24,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197184232] [2023-11-12 00:43:24,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:24,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:43:24,720 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:43:24,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712017700] [2023-11-12 00:43:24,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:43:24,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:43:24,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:43:24,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:43:24,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:43:24,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:43:24,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-12 00:43:25,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:43:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 92 proven. 23 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-12 00:43:30,951 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:43:36,631 WARN L854 $PredicateComparison]: unable to prove that (or (= (mod c_~var_1_7~0 256) 0) (let ((.cse0 (mod c_~var_1_3~0 256))) (and (forall ((~var_1_10~0 Int)) (or (< 0 (+ ~var_1_10~0 1)) (= (mod ~var_1_10~0 .cse0) 0) (< (div ~var_1_10~0 .cse0) ~var_1_10~0))) (forall ((~var_1_10~0 Int)) (<= (div ~var_1_10~0 .cse0) ~var_1_10~0))))) is different from false [2023-11-12 00:43:36,737 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:43:36,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197184232] [2023-11-12 00:43:36,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:43:36,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712017700] [2023-11-12 00:43:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712017700] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 00:43:36,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1903319170] [2023-11-12 00:43:36,779 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2023-11-12 00:43:36,779 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:43:36,782 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:43:36,787 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:43:36,787 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:43:40,848 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 40 for LOIs [2023-11-12 00:43:40,855 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:43:45,053 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '196#(or (and (<= 0 (+ ~var_1_9~0 63)) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_#t~ret16#1| 2147483648)) (= (+ ~var_1_14~0 1) 0) (<= 0 (+ 127 ~var_1_10~0)) (= ~last_1_var_1_15~0 25) (<= 0 (+ 127 ~var_1_13~0)) (= 16 ~last_1_var_1_14~0) (<= |ULTIMATE.start_main_#t~ret16#1| 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ |ULTIMATE.start_property_#res#1| 2147483648)) (= ~var_1_11~0 0) (<= ~var_1_10~0 126) (<= 0 (+ |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 2147483648)) (= ~isInitial~0 1) (= ~var_1_1~0 0) (<= |ULTIMATE.start_property_#res#1| 2147483647) (<= ~var_1_13~0 126) (= (+ ~var_1_8~0 1) 0) (<= ~var_1_9~0 63)) (and (<= 0 (+ ~var_1_9~0 63)) (= ~var_1_1~0 1) (<= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 2147483647) (<= 1 |#StackHeapBarrier|) (<= 0 (+ |ULTIMATE.start_main_#t~ret16#1| 2147483648)) (= (+ ~var_1_14~0 1) 0) (<= 0 (+ 127 ~var_1_10~0)) (= ~last_1_var_1_15~0 25) (<= 0 (+ 127 ~var_1_13~0)) (= 16 ~last_1_var_1_14~0) (<= |ULTIMATE.start_main_#t~ret16#1| 2147483647) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ |ULTIMATE.start_property_#res#1| 2147483648)) (<= ~var_1_10~0 126) (<= 0 (+ |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 2147483648)) (= ~isInitial~0 1) (<= |ULTIMATE.start_property_#res#1| 2147483647) (<= ~var_1_13~0 126) (= (+ ~var_1_8~0 1) 0) (<= ~var_1_9~0 63)))' at error location [2023-11-12 00:43:45,054 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:43:45,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-11-12 00:43:45,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-11-12 00:43:45,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609495150] [2023-11-12 00:43:45,057 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-11-12 00:43:45,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 00:43:45,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:43:45,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 00:43:45,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=674, Unknown=1, NotChecked=54, Total=870 [2023-11-12 00:43:45,090 INFO L87 Difference]: Start difference. First operand has 28 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 7 states, 5 states have (on average 3.0) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:43:45,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:43:45,425 INFO L93 Difference]: Finished difference Result 58 states and 83 transitions. [2023-11-12 00:43:45,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:43:45,428 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 49 [2023-11-12 00:43:45,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:43:45,434 INFO L225 Difference]: With dead ends: 58 [2023-11-12 00:43:45,434 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:43:45,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=153, Invalid=780, Unknown=1, NotChecked=58, Total=992 [2023-11-12 00:43:45,442 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 00:43:45,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 55 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 00:43:45,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:43:45,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:43:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:43:45,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:43:45,467 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2023-11-12 00:43:45,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:43:45,467 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:43:45,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 3.0) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (13), 3 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-12 00:43:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:43:45,468 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:43:45,473 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:43:45,480 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:43:45,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-12 00:43:45,682 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:43:45,773 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2023-11-12 00:43:45,773 INFO L899 garLoopResultBuilder]: For program point L19-1(line 19) no Hoare annotation was computed. [2023-11-12 00:43:45,774 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2023-11-12 00:43:45,774 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (not (= (mod ~var_1_3~0 256) 0)) [2023-11-12 00:43:45,774 INFO L895 garLoopResultBuilder]: At program point L77-1(line 77) the Hoare annotation is: (not (= (mod ~var_1_3~0 256) 0)) [2023-11-12 00:43:45,774 INFO L899 garLoopResultBuilder]: For program point L69(line 69) no Hoare annotation was computed. [2023-11-12 00:43:45,774 INFO L899 garLoopResultBuilder]: For program point L78(line 78) no Hoare annotation was computed. [2023-11-12 00:43:45,775 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:43:45,775 INFO L895 garLoopResultBuilder]: At program point L71(line 71) the Hoare annotation is: (not (= (mod ~var_1_3~0 256) 0)) [2023-11-12 00:43:45,775 INFO L895 garLoopResultBuilder]: At program point L71-1(line 71) the Hoare annotation is: (not (= (mod ~var_1_3~0 256) 0)) [2023-11-12 00:43:45,775 INFO L895 garLoopResultBuilder]: At program point L80(line 80) the Hoare annotation is: (and (not (= (mod ~var_1_3~0 256) 0)) (<= (mod ~var_1_7~0 256) 0)) [2023-11-12 00:43:45,775 INFO L895 garLoopResultBuilder]: At program point L80-1(line 80) the Hoare annotation is: (and (not (= (mod ~var_1_3~0 256) 0)) (<= (mod ~var_1_7~0 256) 0)) [2023-11-12 00:43:45,776 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2023-11-12 00:43:45,776 INFO L895 garLoopResultBuilder]: At program point L97-2(lines 97 103) the Hoare annotation is: (and (not (= (mod ~var_1_3~0 256) 0)) (<= (mod ~var_1_7~0 256) 0)) [2023-11-12 00:43:45,776 INFO L899 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2023-11-12 00:43:45,776 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2023-11-12 00:43:45,777 INFO L895 garLoopResultBuilder]: At program point L74(line 74) the Hoare annotation is: (not (= (mod ~var_1_3~0 256) 0)) [2023-11-12 00:43:45,777 INFO L895 garLoopResultBuilder]: At program point L74-1(line 74) the Hoare annotation is: (not (= (mod ~var_1_3~0 256) 0)) [2023-11-12 00:43:45,777 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:43:45,777 INFO L895 garLoopResultBuilder]: At program point L83(line 83) the Hoare annotation is: (and (not (= (mod ~var_1_3~0 256) 0)) (<= (mod ~var_1_7~0 256) 0)) [2023-11-12 00:43:45,777 INFO L895 garLoopResultBuilder]: At program point L83-1(line 83) the Hoare annotation is: (and (not (= (mod ~var_1_3~0 256) 0)) (<= (mod ~var_1_7~0 256) 0)) [2023-11-12 00:43:45,778 INFO L899 garLoopResultBuilder]: For program point L75(line 75) no Hoare annotation was computed. [2023-11-12 00:43:45,778 INFO L902 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2023-11-12 00:43:45,778 INFO L902 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: true [2023-11-12 00:43:45,778 INFO L899 garLoopResultBuilder]: For program point L84(lines 65 85) no Hoare annotation was computed. [2023-11-12 00:43:45,778 INFO L902 garLoopResultBuilder]: At program point L68(line 68) the Hoare annotation is: true [2023-11-12 00:43:45,778 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line 20) the Hoare annotation is: true [2023-11-12 00:43:45,779 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(line 20) no Hoare annotation was computed. [2023-11-12 00:43:45,784 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:43:45,787 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:43:45,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:43:45 BoogieIcfgContainer [2023-11-12 00:43:45,808 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:43:45,808 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:43:45,809 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:43:45,809 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:43:45,810 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:43:24" (3/4) ... [2023-11-12 00:43:45,812 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:43:45,817 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-12 00:43:45,830 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2023-11-12 00:43:45,832 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:43:45,833 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:43:45,833 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:43:46,042 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:43:46,050 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:43:46,051 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:43:46,055 INFO L158 Benchmark]: Toolchain (without parser) took 23219.81ms. Allocated memory was 155.2MB in the beginning and 568.3MB in the end (delta: 413.1MB). Free memory was 110.4MB in the beginning and 250.9MB in the end (delta: -140.5MB). Peak memory consumption was 274.0MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,056 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:43:46,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.84ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 97.7MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.12ms. Allocated memory is still 155.2MB. Free memory was 97.7MB in the beginning and 94.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,061 INFO L158 Benchmark]: Boogie Preprocessor took 63.58ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,061 INFO L158 Benchmark]: RCFGBuilder took 1067.35ms. Allocated memory is still 155.2MB. Free memory was 92.8MB in the beginning and 94.3MB in the end (delta: -1.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,061 INFO L158 Benchmark]: TraceAbstraction took 21438.07ms. Allocated memory was 155.2MB in the beginning and 568.3MB in the end (delta: 413.1MB). Free memory was 93.6MB in the beginning and 261.4MB in the end (delta: -167.9MB). Peak memory consumption was 247.0MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,062 INFO L158 Benchmark]: Witness Printer took 242.53ms. Allocated memory is still 568.3MB. Free memory was 261.4MB in the beginning and 250.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 00:43:46,065 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.84ms. Allocated memory is still 155.2MB. Free memory was 110.0MB in the beginning and 97.7MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.12ms. Allocated memory is still 155.2MB. Free memory was 97.7MB in the beginning and 94.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.58ms. Allocated memory is still 155.2MB. Free memory was 94.5MB in the beginning and 92.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1067.35ms. Allocated memory is still 155.2MB. Free memory was 92.8MB in the beginning and 94.3MB in the end (delta: -1.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 21438.07ms. Allocated memory was 155.2MB in the beginning and 568.3MB in the end (delta: 413.1MB). Free memory was 93.6MB in the beginning and 261.4MB in the end (delta: -167.9MB). Peak memory consumption was 247.0MB. Max. memory is 16.1GB. * Witness Printer took 242.53ms. Allocated memory is still 568.3MB. Free memory was 261.4MB in the beginning and 250.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.4s, OverallIterations: 1, TraceHistogramMax: 13, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 19 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 40 PreInvPairs, 54 NumberOfFragments, 100 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 11.8s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 331 SizeOfPredicates, 20 NumberOfNonLiveVariables, 197 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 1 InterpolantComputations, 0 PerfectInterpolantSequences, 133/156 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: (!(((var_1_3 % 256) == 0)) && ((var_1_7 % 256) <= 0)) RESULT: Ultimate proved your program to be correct! [2023-11-12 00:43:46,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71e12237-ad4c-43a9-aac4-df95e8fb7184/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE