./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.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_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/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_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/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_e2029f46-53a5-4acf-a7ea-fda294ce6d80/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 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:01:24,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:01:24,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:01:24,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:01:24,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:01:24,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:01:24,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:01:24,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:01:24,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:01:24,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:01:24,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:01:24,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:01:24,730 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:01:24,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:01:24,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:01:24,738 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:01:24,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:01:24,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:01:24,749 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:01:24,752 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:01:24,759 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:01:24,760 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:01:24,761 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:01:24,764 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:01:24,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:01:24,771 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:01:24,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:01:24,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:01:24,774 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:01:24,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:01:24,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:01:24,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:01:24,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:01:24,780 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:01:24,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:01:24,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:01:24,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:01:24,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:01:24,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:01:24,785 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:01:24,786 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:01:24,787 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:01:24,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:01:24,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:01:24,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:01:24,834 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:01:24,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:01:24,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:01:24,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:01:24,836 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:01:24,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:01:24,836 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:01:24,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:01:24,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:01:24,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:01:24,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:01:24,838 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:01:24,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:01:24,839 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:01:24,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:01:24,839 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:01:24,840 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:01:24,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:01:24,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:01:24,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:01:24,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:01:24,841 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:01:24,841 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:01:24,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:01:24,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:01:24,842 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_e2029f46-53a5-4acf-a7ea-fda294ce6d80/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f7670ede459996daea4f0d5b6d4f8f7722cb2c07f35d54c8d0ca4957e40998d [2021-11-23 01:01:25,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:01:25,114 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:01:25,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:01:25,118 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:01:25,119 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:01:25,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-11-23 01:01:25,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/data/b2ad19a41/940b4362a8cb4bdd881af1051e46ff60/FLAG80fe88bed [2021-11-23 01:01:25,756 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:01:25,757 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i [2021-11-23 01:01:25,769 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/data/b2ad19a41/940b4362a8cb4bdd881af1051e46ff60/FLAG80fe88bed [2021-11-23 01:01:26,113 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/data/b2ad19a41/940b4362a8cb4bdd881af1051e46ff60 [2021-11-23 01:01:26,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:01:26,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:01:26,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:01:26,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:01:26,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:01:26,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c6d6cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26, skipping insertion in model container [2021-11-23 01:01:26,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:01:26,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:01:26,289 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_e2029f46-53a5-4acf-a7ea-fda294ce6d80/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-11-23 01:01:26,299 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:01:26,308 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:01:26,321 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_e2029f46-53a5-4acf-a7ea-fda294ce6d80/sv-benchmarks/c/loops/sum01_bug02_sum01_bug02_base.case.i[834,847] [2021-11-23 01:01:26,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:01:26,337 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:01:26,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26 WrapperNode [2021-11-23 01:01:26,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:01:26,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:01:26,340 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:01:26,340 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:01:26,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,370 INFO L137 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2021-11-23 01:01:26,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:01:26,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:01:26,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:01:26,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:01:26,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:01:26,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:01:26,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:01:26,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:01:26,401 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,408 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:01:26,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:01:26,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:01:26,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:01:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:01:26,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:01:26,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:01:26,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:01:26,539 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:01:26,540 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:01:26,712 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:01:26,746 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:01:26,747 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:01:26,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:26 BoogieIcfgContainer [2021-11-23 01:01:26,751 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:01:26,752 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:01:26,752 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:01:26,762 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:01:26,763 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:26" (1/1) ... [2021-11-23 01:01:26,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:01:26,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-11-23 01:01:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-11-23 01:01:26,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 01:01:26,861 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:26,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:26,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:27,104 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 01:01:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:01:27,190 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:01:27,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:01:27,191 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:27,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:27,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:27,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:27,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:27,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 11 states and 19 transitions. [2021-11-23 01:01:27,645 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 19 transitions. [2021-11-23 01:01:27,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:01:27,647 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:27,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:27,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:27,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 12 states and 21 transitions. [2021-11-23 01:01:27,938 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 21 transitions. [2021-11-23 01:01:27,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:01:27,938 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:27,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:28,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:28,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 13 states and 24 transitions. [2021-11-23 01:01:28,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 24 transitions. [2021-11-23 01:01:28,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:01:28,197 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:28,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:28,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:28,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:28,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 14 states and 25 transitions. [2021-11-23 01:01:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 25 transitions. [2021-11-23 01:01:28,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:01:28,608 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:28,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:28,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:28,687 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:28,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:28,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 15 states and 27 transitions. [2021-11-23 01:01:28,860 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 27 transitions. [2021-11-23 01:01:28,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:01:28,860 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:28,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:01:28,875 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:01:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:01:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:01:28,921 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:01:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:01:28,940 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2021-11-23 01:01:28,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:01:28 ImpRootNode [2021-11-23 01:01:28,966 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:01:28,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:01:28,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:01:28,967 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:01:28,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:26" (3/4) ... [2021-11-23 01:01:28,970 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:01:29,011 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:01:29,011 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:01:29,012 INFO L158 Benchmark]: Toolchain (without parser) took 2895.02ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 35.2MB in the end (delta: 37.1MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2021-11-23 01:01:29,013 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:01:29,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.45ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 62.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:01:29,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.66ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 61.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:01:29,015 INFO L158 Benchmark]: Boogie Preprocessor took 18.43ms. Allocated memory is still 107.0MB. Free memory was 61.0MB in the beginning and 60.0MB in the end (delta: 978.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:01:29,016 INFO L158 Benchmark]: RCFGBuilder took 360.39ms. Allocated memory is still 107.0MB. Free memory was 60.0MB in the beginning and 81.9MB in the end (delta: -21.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-11-23 01:01:29,016 INFO L158 Benchmark]: CodeCheck took 2214.70ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 37.2MB in the end (delta: 44.6MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2021-11-23 01:01:29,017 INFO L158 Benchmark]: Witness Printer took 44.56ms. Allocated memory is still 107.0MB. Free memory was 37.2MB in the beginning and 35.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:01:29,020 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: 2.1s, OverallIterations: 7, 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, 32 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 132 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 250 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 132 mSolverCounterUnsat, 6 mSDtfsCounter, 250 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 348 GetRequests, 300 SyntacticMatches, 14 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 390 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/19 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: 16]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] int i, n=__VERIFIER_nondet_uint(), sn=0; [L23] int i, n=__VERIFIER_nondet_uint(), sn=0; [L24] i=1 VAL [i=1, n=4, n=0] [L24] COND TRUE i<=n [L25] sn = sn + (2) [L26] COND FALSE !(i==4) [L24] i++ VAL [i=2, n=2, n=4] [L24] COND TRUE i<=n [L25] sn = sn + (2) [L26] COND FALSE !(i==4) [L24] i++ VAL [i=3, n=4, n=4] [L24] COND TRUE i<=n [L25] sn = sn + (2) [L26] COND FALSE !(i==4) [L24] i++ VAL [i=4, n=4, n=6] [L24] COND TRUE i<=n [L25] sn = sn + (2) [L26] COND TRUE i==4 [L26] sn=-10 [L24] i++ VAL [i=5, n=4, n=-10] [L24] COND FALSE !(i<=n) [L28] CALL __VERIFIER_assert(sn==n*(2) || sn == 0) [L15] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L16] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.45ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 62.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.66ms. Allocated memory is still 107.0MB. Free memory was 62.5MB in the beginning and 61.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.43ms. Allocated memory is still 107.0MB. Free memory was 61.0MB in the beginning and 60.0MB in the end (delta: 978.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 360.39ms. Allocated memory is still 107.0MB. Free memory was 60.0MB in the beginning and 81.9MB in the end (delta: -21.8MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * CodeCheck took 2214.70ms. Allocated memory is still 107.0MB. Free memory was 81.9MB in the beginning and 37.2MB in the end (delta: 44.6MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. * Witness Printer took 44.56ms. Allocated memory is still 107.0MB. Free memory was 37.2MB in the beginning and 35.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:01:29,071 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e2029f46-53a5-4acf-a7ea-fda294ce6d80/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