./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_trans.i --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_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/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_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_trans.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/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_17747022-881f-42c1-885b-65aebebceb15/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 6aaead44d7f76ddac498383f5d9663622bc4506781697c14d3a4988231066e32 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 00:22:42,438 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 00:22:42,440 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 00:22:42,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 00:22:42,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 00:22:42,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 00:22:42,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 00:22:42,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 00:22:42,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 00:22:42,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 00:22:42,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 00:22:42,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 00:22:42,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 00:22:42,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 00:22:42,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 00:22:42,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 00:22:42,521 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 00:22:42,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 00:22:42,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 00:22:42,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 00:22:42,535 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 00:22:42,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 00:22:42,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 00:22:42,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 00:22:42,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 00:22:42,546 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 00:22:42,546 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 00:22:42,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 00:22:42,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 00:22:42,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 00:22:42,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 00:22:42,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 00:22:42,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 00:22:42,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 00:22:42,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 00:22:42,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 00:22:42,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 00:22:42,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 00:22:42,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 00:22:42,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 00:22:42,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 00:22:42,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 00:22:42,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 00:22:42,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 00:22:42,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 00:22:42,607 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 00:22:42,607 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 00:22:42,607 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 00:22:42,608 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 00:22:42,608 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 00:22:42,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 00:22:42,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 00:22:42,610 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 00:22:42,610 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 00:22:42,610 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 00:22:42,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 00:22:42,611 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 00:22:42,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 00:22:42,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 00:22:42,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 00:22:42,612 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 00:22:42,612 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 00:22:42,612 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 00:22:42,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:22:42,613 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 00:22:42,613 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 00:22:42,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 00:22:42,613 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 00:22:42,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 00:22:42,614 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 00:22:42,614 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_17747022-881f-42c1-885b-65aebebceb15/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aaead44d7f76ddac498383f5d9663622bc4506781697c14d3a4988231066e32 [2021-11-23 00:22:42,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 00:22:42,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 00:22:42,897 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 00:22:42,898 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 00:22:42,899 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 00:22:42,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loop-invgen/id_trans.i [2021-11-23 00:22:42,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/data/d6c698e27/ded6dec5c93b40ccb15cb85d743f892e/FLAGe38cdfb0b [2021-11-23 00:22:43,393 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 00:22:43,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/sv-benchmarks/c/loop-invgen/id_trans.i [2021-11-23 00:22:43,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/data/d6c698e27/ded6dec5c93b40ccb15cb85d743f892e/FLAGe38cdfb0b [2021-11-23 00:22:43,773 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/data/d6c698e27/ded6dec5c93b40ccb15cb85d743f892e [2021-11-23 00:22:43,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 00:22:43,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 00:22:43,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 00:22:43,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 00:22:43,786 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 00:22:43,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:22:43" (1/1) ... [2021-11-23 00:22:43,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f2de92a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:43, skipping insertion in model container [2021-11-23 00:22:43,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:22:43" (1/1) ... [2021-11-23 00:22:43,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 00:22:43,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 00:22:43,976 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_17747022-881f-42c1-885b-65aebebceb15/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-11-23 00:22:43,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:22:43,994 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 00:22:44,007 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_17747022-881f-42c1-885b-65aebebceb15/sv-benchmarks/c/loop-invgen/id_trans.i[893,906] [2021-11-23 00:22:44,011 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 00:22:44,024 INFO L208 MainTranslator]: Completed translation [2021-11-23 00:22:44,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44 WrapperNode [2021-11-23 00:22:44,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 00:22:44,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 00:22:44,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 00:22:44,026 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 00:22:44,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,057 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2021-11-23 00:22:44,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 00:22:44,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 00:22:44,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 00:22:44,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 00:22:44,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,091 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 00:22:44,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 00:22:44,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 00:22:44,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 00:22:44,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 00:22:44,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 00:22:44,135 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 00:22:44,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 00:22:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 00:22:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 00:22:44,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 00:22:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 00:22:44,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 00:22:44,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 00:22:44,248 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 00:22:44,251 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 00:22:44,419 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 00:22:44,446 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 00:22:44,446 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 00:22:44,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:22:44 BoogieIcfgContainer [2021-11-23 00:22:44,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 00:22:44,450 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 00:22:44,450 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 00:22:44,460 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 00:22:44,460 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:22:44" (1/1) ... [2021-11-23 00:22:44,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 00:22:44,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:22:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2021-11-23 00:22:44,534 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2021-11-23 00:22:44,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 00:22:44,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:22:44,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:22:44,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:22:44,762 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 00:22:44,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:22:44,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 28 transitions. [2021-11-23 00:22:44,869 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 00:22:44,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 00:22:44,873 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:22:44,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:22:44,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:22:44,978 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 00:22:45,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:22:45,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 27 transitions. [2021-11-23 00:22:45,113 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2021-11-23 00:22:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 00:22:45,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:22:45,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:22:45,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 00:22:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 00:22:45,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 00:22:45,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 24 states and 36 transitions. [2021-11-23 00:22:45,520 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 36 transitions. [2021-11-23 00:22:45,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 00:22:45,523 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 00:22:45,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 00:22:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:22:45,578 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:22:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:22:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:22:45,691 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 00:22:45,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 00:22:45,720 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-11-23 00:22:45,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 12:22:45 ImpRootNode [2021-11-23 00:22:45,755 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 00:22:45,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 00:22:45,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 00:22:45,756 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 00:22:45,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:22:44" (3/4) ... [2021-11-23 00:22:45,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 00:22:45,836 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 00:22:45,837 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 00:22:45,837 INFO L158 Benchmark]: Toolchain (without parser) took 2057.64ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 52.3MB in the beginning and 66.3MB in the end (delta: -14.0MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-23 00:22:45,841 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:22:45,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.21ms. Allocated memory is still 88.1MB. Free memory was 52.1MB in the beginning and 63.9MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 00:22:45,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.71ms. Allocated memory is still 88.1MB. Free memory was 63.9MB in the beginning and 62.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:22:45,843 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 88.1MB. Free memory was 62.4MB in the beginning and 61.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 00:22:45,844 INFO L158 Benchmark]: RCFGBuilder took 356.69ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 51.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:22:45,844 INFO L158 Benchmark]: CodeCheck took 1305.21ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 51.4MB in the beginning and 68.4MB in the end (delta: -17.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 00:22:45,845 INFO L158 Benchmark]: Witness Printer took 81.10ms. Allocated memory is still 113.2MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 00:22:45,850 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 2 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 4, 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, 61 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 41 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 296 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 10/10 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 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L25] int idBitLength, material_length, nlen; [L26] int j, k; [L27] nlen = __VERIFIER_nondet_int() [L28] idBitLength = __VERIFIER_nondet_int() [L29] material_length = __VERIFIER_nondet_int() [L30] COND FALSE !(!( nlen == idBitLength / 32 )) [L31] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L31] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L32] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L18] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L32] RET __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L33] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L18] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L33] RET __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L34] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L18] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L34] RET __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L35] CALL __VERIFIER_assert( j/4 < nlen) VAL [\old(cond)=0] [L18] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L19] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 88.1MB. Free memory is still 68.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.21ms. Allocated memory is still 88.1MB. Free memory was 52.1MB in the beginning and 63.9MB in the end (delta: -11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.71ms. Allocated memory is still 88.1MB. Free memory was 63.9MB in the beginning and 62.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 88.1MB. Free memory was 62.4MB in the beginning and 61.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 356.69ms. Allocated memory is still 88.1MB. Free memory was 61.3MB in the beginning and 51.4MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1305.21ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 51.4MB in the beginning and 68.4MB in the end (delta: -17.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 81.10ms. Allocated memory is still 113.2MB. Free memory was 68.4MB in the beginning and 66.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 00:22:45,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17747022-881f-42c1-885b-65aebebceb15/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE