./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eef8227d1054a6741230db166997e87d72b65f8e .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:37:45,398 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:37:45,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:37:45,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:37:45,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:37:45,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:37:45,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:37:45,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:37:45,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:37:45,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:37:45,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:37:45,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:37:45,463 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:37:45,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:37:45,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:37:45,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:37:45,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:37:45,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:37:45,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:37:45,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:37:45,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:37:45,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:37:45,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:37:45,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:37:45,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:37:45,486 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:37:45,486 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:37:45,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:37:45,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:37:45,489 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:37:45,490 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:37:45,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:37:45,492 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:37:45,493 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:37:45,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:37:45,494 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:37:45,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:37:45,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:37:45,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:37:45,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:37:45,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:37:45,499 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-10-13 04:37:45,547 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:37:45,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:37:45,549 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:37:45,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:37:45,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:37:45,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:37:45,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:37:45,550 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 04:37:45,551 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:37:45,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:37:45,551 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 04:37:45,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:37:45,552 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:37:45,552 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:37:45,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:37:45,552 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:37:45,552 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 04:37:45,553 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:37:45,553 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:37:45,553 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:37:45,553 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:37:45,554 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:37:45,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:37:45,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:37:45,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:37:45,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:37:45,555 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:37:45,555 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:37:45,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:37:45,555 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:37:45,556 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_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eef8227d1054a6741230db166997e87d72b65f8e [2021-10-13 04:37:45,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:37:45,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:37:45,835 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:37:45,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:37:45,837 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:37:45,838 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/recursive-simple/sum_non_eq-1.c [2021-10-13 04:37:45,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/data/4490f14cb/34edeca146ed4ee19071b099cc4d46e3/FLAG4aee65825 [2021-10-13 04:37:46,433 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:37:46,433 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/sv-benchmarks/c/recursive-simple/sum_non_eq-1.c [2021-10-13 04:37:46,446 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/data/4490f14cb/34edeca146ed4ee19071b099cc4d46e3/FLAG4aee65825 [2021-10-13 04:37:46,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/data/4490f14cb/34edeca146ed4ee19071b099cc4d46e3 [2021-10-13 04:37:46,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:37:46,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:37:46,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:37:46,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:37:46,810 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:37:46,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:37:46" (1/1) ... [2021-10-13 04:37:46,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@256ebd79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:46, skipping insertion in model container [2021-10-13 04:37:46,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:37:46" (1/1) ... [2021-10-13 04:37:46,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:37:46,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:37:47,036 WARN L228 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_baa54659-5a7d-4448-a35c-eac68645a9fa/sv-benchmarks/c/recursive-simple/sum_non_eq-1.c[563,576] [2021-10-13 04:37:47,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:37:47,046 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:37:47,062 WARN L228 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_baa54659-5a7d-4448-a35c-eac68645a9fa/sv-benchmarks/c/recursive-simple/sum_non_eq-1.c[563,576] [2021-10-13 04:37:47,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:37:47,076 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:37:47,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47 WrapperNode [2021-10-13 04:37:47,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:37:47,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:37:47,079 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:37:47,079 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:37:47,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,093 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:37:47,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:37:47,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:37:47,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:37:47,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:37:47,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:37:47,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:37:47,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:37:47,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:37:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:37:47,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:37:47,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:37:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:37:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:37:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-10-13 04:37:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-10-13 04:37:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 04:37:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 04:37:47,544 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:37:47,544 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 04:37:47,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:47 BoogieIcfgContainer [2021-10-13 04:37:47,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:37:47,547 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:37:47,548 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:37:47,573 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:37:47,573 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:47" (1/1) ... [2021-10-13 04:37:47,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:37:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:47,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 22 states and 23 transitions. [2021-10-13 04:37:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-10-13 04:37:47,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:37:47,635 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:47,637 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:37:47,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:47,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 25 states and 27 transitions. [2021-10-13 04:37:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2021-10-13 04:37:47,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:37:47,857 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:47,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:47,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:47,880 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:37:47,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:47,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:47,950 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:37:47,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:47,999 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-13 04:37:48,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:37:48 ImpRootNode [2021-10-13 04:37:48,023 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:37:48,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:37:48,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:37:48,024 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:37:48,025 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:47" (3/4) ... [2021-10-13 04:37:48,027 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:37:48,062 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:37:48,062 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:37:48,064 INFO L168 Benchmark]: Toolchain (without parser) took 1258.21 ms. Allocated memory is still 134.2 MB. Free memory was 98.8 MB in the beginning and 76.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:48,065 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:48,066 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.09 ms. Allocated memory is still 134.2 MB. Free memory was 98.6 MB in the beginning and 107.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:48,067 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 134.2 MB. Free memory was 107.9 MB in the beginning and 106.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:48,068 INFO L168 Benchmark]: Boogie Preprocessor took 17.83 ms. Allocated memory is still 134.2 MB. Free memory was 106.4 MB in the beginning and 105.9 MB in the end (delta: 477.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:48,069 INFO L168 Benchmark]: RCFGBuilder took 419.13 ms. Allocated memory is still 134.2 MB. Free memory was 105.4 MB in the beginning and 94.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:48,070 INFO L168 Benchmark]: CodeCheck took 476.01 ms. Allocated memory is still 134.2 MB. Free memory was 94.7 MB in the beginning and 77.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:48,070 INFO L168 Benchmark]: Witness Printer took 38.46 ms. Allocated memory is still 134.2 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:48,075 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, 22 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 396.3ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 17 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 10.2ms SsaConstructionTime, 49.4ms SatisfiabilityAnalysisTime, 71.1ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 10]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int() ; [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=0, \old(n)=-2147483648] [L7] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=-2147483648, m=0, n=-2147483648] [L10] n - 1 VAL [\old(m)=0, \old(n)=-2147483648, m=0, n=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 79.7 MB. Free memory is still 38.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.09 ms. Allocated memory is still 134.2 MB. Free memory was 98.6 MB in the beginning and 107.9 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.77 ms. Allocated memory is still 134.2 MB. Free memory was 107.9 MB in the beginning and 106.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.83 ms. Allocated memory is still 134.2 MB. Free memory was 106.4 MB in the beginning and 105.9 MB in the end (delta: 477.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 419.13 ms. Allocated memory is still 134.2 MB. Free memory was 105.4 MB in the beginning and 94.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 476.01 ms. Allocated memory is still 134.2 MB. Free memory was 94.7 MB in the beginning and 77.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 38.46 ms. Allocated memory is still 134.2 MB. Free memory was 77.5 MB in the beginning and 76.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:37:48,125 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baa54659-5a7d-4448-a35c-eac68645a9fa/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...