./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Addition02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB --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 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:35:53,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:35:53,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:35:53,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:35:53,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:35:54,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:35:54,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:35:54,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:35:54,014 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:35:54,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:35:54,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:35:54,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:35:54,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:35:54,030 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:35:54,033 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:35:54,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:35:54,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:35:54,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:35:54,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:35:54,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:35:54,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:35:54,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:35:54,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:35:54,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:35:54,074 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:35:54,074 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:35:54,075 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:35:54,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:35:54,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:35:54,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:35:54,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:35:54,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:35:54,084 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:35:54,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:35:54,088 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:35:54,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:35:54,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:35:54,097 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:35:54,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:35:54,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:35:54,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:35:54,101 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:35:54,137 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:35:54,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:35:54,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:35:54,139 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:35:54,140 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:35:54,140 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:35:54,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:35:54,141 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:35:54,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:35:54,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:35:54,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:35:54,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:35:54,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:35:54,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:35:54,142 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:35:54,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:35:54,143 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:35:54,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:35:54,143 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:35:54,143 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:35:54,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:35:54,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:35:54,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:35:54,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:35:54,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:35:54,145 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:35:54,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:35:54,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:35:54,146 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_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2022-10-17 16:35:54,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:35:54,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:35:54,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:35:54,473 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:35:54,474 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:35:54,476 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive/Addition02.c [2022-10-17 16:35:54,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/data/facc72cfa/502587c199ec402382a67281e05a05e5/FLAG2bd39c769 [2022-10-17 16:35:55,049 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:35:55,050 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/sv-benchmarks/c/recursive/Addition02.c [2022-10-17 16:35:55,060 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/data/facc72cfa/502587c199ec402382a67281e05a05e5/FLAG2bd39c769 [2022-10-17 16:35:55,400 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/data/facc72cfa/502587c199ec402382a67281e05a05e5 [2022-10-17 16:35:55,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:35:55,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:35:55,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:35:55,414 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:35:55,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:35:55,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4616d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55, skipping insertion in model container [2022-10-17 16:35:55,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,430 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:35:55,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:35:55,692 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_fbf6de71-9889-4e58-ae98-06bcc8a78be0/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2022-10-17 16:35:55,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:35:55,708 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:35:55,733 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_fbf6de71-9889-4e58-ae98-06bcc8a78be0/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2022-10-17 16:35:55,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:35:55,757 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:35:55,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55 WrapperNode [2022-10-17 16:35:55,758 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:35:55,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:35:55,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:35:55,762 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:35:55,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,800 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-10-17 16:35:55,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:35:55,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:35:55,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:35:55,802 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:35:55,812 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,839 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:35:55,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:35:55,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:35:55,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:35:55,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:35:55" (1/1) ... [2022-10-17 16:35:55,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:35:55,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:35:55,887 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:35:55,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:35:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:35:55,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:35:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:35:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:35:55,942 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-10-17 16:35:55,942 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-10-17 16:35:56,017 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:35:56,020 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:35:56,220 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:35:56,252 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:35:56,252 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:35:56,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:56 BoogieIcfgContainer [2022-10-17 16:35:56,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:35:56,256 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:35:56,256 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:35:56,281 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:35:56,281 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:56" (1/1) ... [2022-10-17 16:35:56,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:35:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-10-17 16:35:56,353 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-10-17 16:35:56,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 16:35:56,358 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:56,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:56,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:56,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:35:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:57,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2022-10-17 16:35:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-10-17 16:35:57,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 16:35:57,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:57,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:35:57,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:35:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:35:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2022-10-17 16:35:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-10-17 16:35:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-17 16:35:57,584 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:35:57,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:35:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:57,601 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:35:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:57,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:57,674 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:35:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:35:57,714 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-10-17 16:35:57,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:35:57 ImpRootNode [2022-10-17 16:35:57,755 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:35:57,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:35:57,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:35:57,757 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:35:57,757 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:35:56" (3/4) ... [2022-10-17 16:35:57,759 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:35:57,806 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:35:57,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:35:57,807 INFO L158 Benchmark]: Toolchain (without parser) took 2399.04ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 71.9MB in the beginning and 75.3MB in the end (delta: -3.4MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-10-17 16:35:57,808 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:35:57,808 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.29ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 69.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:35:57,809 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.51ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:35:57,810 INFO L158 Benchmark]: Boogie Preprocessor took 46.20ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 67.2MB in the end (delta: 955.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:35:57,810 INFO L158 Benchmark]: RCFGBuilder took 406.65ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 56.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:35:57,811 INFO L158 Benchmark]: CodeCheck took 1499.55ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 56.6MB in the beginning and 77.4MB in the end (delta: -20.8MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-10-17 16:35:57,812 INFO L158 Benchmark]: Witness Printer took 50.26ms. Allocated memory is still 127.9MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:35:57,815 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, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 24 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 198 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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: 45]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m < 0 || m > 1073741823) [L35] int n = __VERIFIER_nondet_int(); [L36] COND FALSE !(n < 0 || n > 1073741823) VAL [m=0, n=1] [L41] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=1, \old(n)=0, \result=1, m=1, n=0] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=1, m=0, n=1] [L20] return addition(m+1, n-1); [L41] RET, EXPR addition(m,n) VAL [addition(m,n)=1, m=0, n=1] [L41] int result = addition(m,n); [L42] COND FALSE !(result == m - n) VAL [m=0, n=1, result=1] [L45] reach_error() VAL [m=0, n=1, result=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.29ms. Allocated memory is still 94.4MB. Free memory was 71.7MB in the beginning and 69.7MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.51ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.20ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 67.2MB in the end (delta: 955.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 406.65ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 56.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1499.55ms. Allocated memory was 94.4MB in the beginning and 127.9MB in the end (delta: 33.6MB). Free memory was 56.6MB in the beginning and 77.4MB in the end (delta: -20.8MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Witness Printer took 50.26ms. Allocated memory is still 127.9MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:35:57,874 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbf6de71-9889-4e58-ae98-06bcc8a78be0/bin/ukojak-92XMlrwhuB/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