./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/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_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Ackermann-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/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 64bit --witnessprinter.graph.data.programhash 5917ee93972738bd406398210804e4342159e8a8 .................................................................................................................................................................................................................... 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 03:33:24,677 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:33:24,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:33:24,711 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:33:24,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:33:24,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:33:24,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:33:24,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:33:24,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:33:24,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:33:24,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:33:24,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:33:24,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:33:24,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:33:24,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:33:24,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:33:24,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:33:24,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:33:24,735 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:33:24,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:33:24,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:33:24,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:33:24,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:33:24,752 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:33:24,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:33:24,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:33:24,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:33:24,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:33:24,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:33:24,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:33:24,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:33:24,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:33:24,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:33:24,772 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:33:24,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:33:24,774 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:33:24,775 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:33:24,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:33:24,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:33:24,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:33:24,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:33:24,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 03:33:24,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:33:24,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:33:24,823 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:33:24,823 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:33:24,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:33:24,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:33:24,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:33:24,825 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 03:33:24,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:33:24,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:33:24,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:33:24,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:33:24,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:33:24,827 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 03:33:24,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:33:24,828 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:33:24,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:33:24,828 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:33:24,829 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:33:24,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:33:24,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:33:24,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:33:24,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:33:24,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:33:24,830 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:33:24,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:33:24,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:33:24,831 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_f074b11a-1a6e-432e-8f40-a98b7eac172f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5917ee93972738bd406398210804e4342159e8a8 [2021-10-13 03:33:25,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:33:25,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:33:25,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:33:25,207 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:33:25,208 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:33:25,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted/Ackermann-1.c [2021-10-13 03:33:25,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/data/21e20730a/42900687b8474b188ca34c2c80c8d868/FLAG963476726 [2021-10-13 03:33:25,742 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:33:25,744 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/sv-benchmarks/c/termination-crafted/Ackermann-1.c [2021-10-13 03:33:25,760 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/data/21e20730a/42900687b8474b188ca34c2c80c8d868/FLAG963476726 [2021-10-13 03:33:26,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/data/21e20730a/42900687b8474b188ca34c2c80c8d868 [2021-10-13 03:33:26,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:33:26,155 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:33:26,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:33:26,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:33:26,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:33:26,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41184f83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26, skipping insertion in model container [2021-10-13 03:33:26,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,170 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:33:26,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:33:26,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:33:26,369 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:33:26,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:33:26,390 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:33:26,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26 WrapperNode [2021-10-13 03:33:26,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:33:26,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:33:26,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:33:26,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:33:26,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:33:26,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:33:26,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:33:26,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:33:26,429 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,429 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,437 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:33:26,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:33:26,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:33:26,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:33:26,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:33:26,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:33:26,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:33:26,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:33:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure Ack [2021-10-13 03:33:26,522 INFO L138 BoogieDeclarations]: Found implementation of procedure Ack [2021-10-13 03:33:26,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:33:26,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:33:26,768 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:33:26,777 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 03:33:26,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:33:26 BoogieIcfgContainer [2021-10-13 03:33:26,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:33:26,781 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:33:26,781 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:33:26,792 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:33:26,792 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:33:26" (1/1) ... [2021-10-13 03:33:26,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:33:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:33:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 33 states and 38 transitions. [2021-10-13 03:33:26,852 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2021-10-13 03:33:26,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 03:33:26,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:33:26,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:33:26,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:33:26,927 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:33:26,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:33:26,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:33:26,966 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:33:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:33:26,978 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-13 03:33:27,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:33:27 ImpRootNode [2021-10-13 03:33:27,001 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:33:27,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:33:27,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:33:27,002 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:33:27,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:33:26" (3/4) ... [2021-10-13 03:33:27,004 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 03:33:27,035 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:33:27,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:33:27,037 INFO L168 Benchmark]: Toolchain (without parser) took 881.28 ms. Allocated memory is still 96.5 MB. Free memory was 61.7 MB in the beginning and 50.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-13 03:33:27,040 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.9 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:33:27,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.74 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 72.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:33:27,042 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.70 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 71.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:33:27,043 INFO L168 Benchmark]: Boogie Preprocessor took 16.58 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 70.8 MB in the end (delta: 931.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:33:27,043 INFO L168 Benchmark]: RCFGBuilder took 341.81 ms. Allocated memory is still 96.5 MB. Free memory was 70.8 MB in the beginning and 61.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:33:27,044 INFO L168 Benchmark]: CodeCheck took 219.93 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 52.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 03:33:27,045 INFO L168 Benchmark]: Witness Printer took 34.27 ms. Allocated memory is still 96.5 MB. Free memory was 52.3 MB in the beginning and 50.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:33:27,049 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, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 168.5ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 1.6ms SsaConstructionTime, 7.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: [L16] int x = __VERIFIER_nondet_int(); [L17] int y = __VERIFIER_nondet_int(); [L18] COND FALSE !(x < 0 || y < 0) [L21] CALL Ack(x, y) VAL [\old(m)=0, \old(n)=2147483647] [L10] COND TRUE m == 0 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] [L10] n+1 VAL [\old(m)=0, \old(n)=2147483647, m=0, n=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 68.9 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 233.74 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 72.9 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.70 ms. Allocated memory is still 96.5 MB. Free memory was 72.9 MB in the beginning and 71.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.58 ms. Allocated memory is still 96.5 MB. Free memory was 71.7 MB in the beginning and 70.8 MB in the end (delta: 931.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 341.81 ms. Allocated memory is still 96.5 MB. Free memory was 70.8 MB in the beginning and 61.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 219.93 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 52.3 MB in the end (delta: 9.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 34.27 ms. Allocated memory is still 96.5 MB. Free memory was 52.3 MB in the beginning and 50.8 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 03:33:27,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f074b11a-1a6e-432e-8f40-a98b7eac172f/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...