./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/jain_4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/jain_4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cbac86a7d2d3b0f5135f8cc4b9786f5bd2e458e412a649884fa942dedde8dfa --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:53:12,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:53:12,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:53:12,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:53:12,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:53:12,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:53:12,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:53:12,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:53:12,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:53:12,980 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:53:12,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:53:12,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:53:12,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:53:12,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:53:12,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:53:12,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:53:12,994 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:53:12,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:53:12,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:53:13,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:53:13,005 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:53:13,009 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:53:13,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:53:13,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:53:13,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:53:13,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:53:13,028 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:53:13,030 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:53:13,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:53:13,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:53:13,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:53:13,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:53:13,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:53:13,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:53:13,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:53:13,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:53:13,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:53:13,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:53:13,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:53:13,046 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:53:13,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:53:13,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:53:13,103 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:53:13,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:53:13,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:53:13,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:53:13,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:53:13,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:53:13,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:53:13,107 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:53:13,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:53:13,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:53:13,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:53:13,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:53:13,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:53:13,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:53:13,110 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:53:13,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:53:13,111 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:53:13,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:53:13,112 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:53:13,112 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:53:13,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:53:13,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:53:13,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:53:13,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:53:13,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:53:13,113 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:53:13,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:53:13,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:53:13,114 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cbac86a7d2d3b0f5135f8cc4b9786f5bd2e458e412a649884fa942dedde8dfa [2021-11-23 00:53:13,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:53:13,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:53:13,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:53:13,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:53:13,535 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:53:13,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/bitvector/jain_4-2.c [2021-11-23 00:53:13,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/data/4a5adefc0/1a79d4fa846c43c1b634d322c12c2016/FLAGe184c1a23 [2021-11-23 00:53:14,187 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:53:14,189 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/sv-benchmarks/c/bitvector/jain_4-2.c [2021-11-23 00:53:14,207 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/data/4a5adefc0/1a79d4fa846c43c1b634d322c12c2016/FLAGe184c1a23 [2021-11-23 00:53:14,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/data/4a5adefc0/1a79d4fa846c43c1b634d322c12c2016 [2021-11-23 00:53:14,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:53:14,596 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:53:14,598 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:53:14,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:53:14,602 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:53:14,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:14,605 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39c051f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14, skipping insertion in model container [2021-11-23 00:53:14,605 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:14,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:53:14,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:53:14,896 WARN L230 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_57b499c9-9039-467c-a9c0-48cd695c2e46/sv-benchmarks/c/bitvector/jain_4-2.c[675,688] [2021-11-23 00:53:14,915 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:53:14,930 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:53:14,947 WARN L230 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_57b499c9-9039-467c-a9c0-48cd695c2e46/sv-benchmarks/c/bitvector/jain_4-2.c[675,688] [2021-11-23 00:53:14,951 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:53:14,968 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:53:14,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14 WrapperNode [2021-11-23 00:53:14,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:53:14,972 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:53:14,973 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:53:14,975 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:53:14,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:14,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,018 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2021-11-23 00:53:15,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:53:15,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:53:15,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:53:15,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:53:15,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,065 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:53:15,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:53:15,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:53:15,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:53:15,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:53:14" (1/1) ... [2021-11-23 00:53:15,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:53:15,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:53:15,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:53:15,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:53:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:53:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:53:15,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:53:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:53:15,267 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:53:15,269 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:53:15,431 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:53:15,448 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:53:15,448 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:53:15,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:15 BoogieIcfgContainer [2021-11-23 00:53:15,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:53:15,456 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:53:15,457 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:53:15,471 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:53:15,471 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:15" (1/1) ... [2021-11-23 00:53:15,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:53:15,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:15,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-23 00:53:15,602 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-23 00:53:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 00:53:15,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:15,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:15,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:16,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:16,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-11-23 00:53:16,066 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-11-23 00:53:16,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:53:16,067 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:53:16,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:53:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:53:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:53:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:53:16,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 5 states and 6 transitions. [2021-11-23 00:53:16,402 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 6 transitions. [2021-11-23 00:53:16,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 00:53:16,402 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2021-11-23 00:53:16,430 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 00:53:16,472 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2021-11-23 00:53:16,484 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2021-11-23 00:53:16,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:53:16 ImpRootNode [2021-11-23 00:53:16,486 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:53:16,488 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:53:16,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:53:16,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:53:16,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:53:15" (3/4) ... [2021-11-23 00:53:16,493 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 00:53:16,504 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-23 00:53:16,505 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-23 00:53:16,505 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 00:53:16,506 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 00:53:16,558 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:53:16,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:53:16,560 INFO L158 Benchmark]: Toolchain (without parser) took 1963.63ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 59.6MB in the beginning and 97.0MB in the end (delta: -37.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:53:16,560 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 65.1MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:53:16,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 370.51ms. Allocated memory is still 94.4MB. Free memory was 59.4MB in the beginning and 70.7MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:53:16,562 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.15ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:53:16,562 INFO L158 Benchmark]: Boogie Preprocessor took 45.05ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 68.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:53:16,563 INFO L158 Benchmark]: RCFGBuilder took 389.12ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 59.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:53:16,563 INFO L158 Benchmark]: CodeCheck took 1029.47ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 59.6MB in the beginning and 99.1MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:53:16,564 INFO L158 Benchmark]: Witness Printer took 70.63ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 97.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:53:16,572 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 2 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, 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: No data available, ReuseStatistics: No data available - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: x + y + z <= 4 * ((x + y + z) / 4) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: x + y + z <= 4 * ((x + y + z) / 4) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 94.4MB. Free memory was 65.1MB in the beginning and 65.1MB in the end (delta: 27.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 370.51ms. Allocated memory is still 94.4MB. Free memory was 59.4MB in the beginning and 70.7MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.15ms. Allocated memory is still 94.4MB. Free memory was 70.7MB in the beginning and 69.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.05ms. Allocated memory is still 94.4MB. Free memory was 69.4MB in the beginning and 68.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 389.12ms. Allocated memory is still 94.4MB. Free memory was 68.3MB in the beginning and 59.6MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1029.47ms. Allocated memory was 94.4MB in the beginning and 123.7MB in the end (delta: 29.4MB). Free memory was 59.6MB in the beginning and 99.1MB in the end (delta: -39.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.63ms. Allocated memory is still 123.7MB. Free memory was 99.1MB in the beginning and 97.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 00:53:16,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_57b499c9-9039-467c-a9c0-48cd695c2e46/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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