./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 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Addition02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4 --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-2329fc7 [2022-12-14 17:55:58,165 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 17:55:58,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 17:55:58,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 17:55:58,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 17:55:58,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 17:55:58,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 17:55:58,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 17:55:58,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 17:55:58,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 17:55:58,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 17:55:58,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 17:55:58,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 17:55:58,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 17:55:58,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 17:55:58,186 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 17:55:58,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 17:55:58,187 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 17:55:58,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 17:55:58,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 17:55:58,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 17:55:58,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 17:55:58,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 17:55:58,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 17:55:58,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 17:55:58,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 17:55:58,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 17:55:58,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 17:55:58,196 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 17:55:58,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 17:55:58,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 17:55:58,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 17:55:58,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 17:55:58,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 17:55:58,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 17:55:58,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 17:55:58,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 17:55:58,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 17:55:58,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 17:55:58,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 17:55:58,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 17:55:58,202 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-12-14 17:55:58,216 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 17:55:58,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 17:55:58,217 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 17:55:58,217 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 17:55:58,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 17:55:58,218 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 17:55:58,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 17:55:58,219 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 17:55:58,219 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 17:55:58,219 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 17:55:58,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 17:55:58,220 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 17:55:58,220 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 17:55:58,220 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 17:55:58,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 17:55:58,220 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 17:55:58,220 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_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2022-12-14 17:55:58,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 17:55:58,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 17:55:58,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 17:55:58,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 17:55:58,456 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 17:55:58,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/recursive/Addition02.c [2022-12-14 17:56:01,074 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 17:56:01,223 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 17:56:01,223 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/sv-benchmarks/c/recursive/Addition02.c [2022-12-14 17:56:01,228 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/data/1772ffa22/5e322e2d9d0f4acaa81bb64878b451d3/FLAG60d181bdb [2022-12-14 17:56:01,238 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/data/1772ffa22/5e322e2d9d0f4acaa81bb64878b451d3 [2022-12-14 17:56:01,240 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 17:56:01,241 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 17:56:01,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 17:56:01,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 17:56:01,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 17:56:01,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6cf811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01, skipping insertion in model container [2022-12-14 17:56:01,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,252 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 17:56:01,261 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 17:56:01,363 WARN L237 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_c8704e27-7aa7-4fc8-8689-98ddf2d45260/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2022-12-14 17:56:01,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 17:56:01,375 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 17:56:01,385 WARN L237 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_c8704e27-7aa7-4fc8-8689-98ddf2d45260/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2022-12-14 17:56:01,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 17:56:01,395 INFO L208 MainTranslator]: Completed translation [2022-12-14 17:56:01,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01 WrapperNode [2022-12-14 17:56:01,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 17:56:01,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 17:56:01,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 17:56:01,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 17:56:01,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,419 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-12-14 17:56:01,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 17:56:01,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 17:56:01,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 17:56:01,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 17:56:01,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,430 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,431 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 17:56:01,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 17:56:01,432 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 17:56:01,432 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 17:56:01,433 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 17:56:01,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 17:56:01,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 17:56:01,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 17:56:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 17:56:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 17:56:01,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 17:56:01,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 17:56:01,501 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-12-14 17:56:01,501 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-12-14 17:56:01,555 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 17:56:01,556 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 17:56:01,642 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 17:56:01,657 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 17:56:01,657 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 17:56:01,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:56:01 BoogieIcfgContainer [2022-12-14 17:56:01,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 17:56:01,661 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 17:56:01,661 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 17:56:01,669 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 17:56:01,670 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:56:01" (1/1) ... [2022-12-14 17:56:01,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 17:56:01,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:56:01,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2022-12-14 17:56:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2022-12-14 17:56:01,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 17:56:01,728 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:56:01,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:56:01,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:56:02,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 17:56:02,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:56:02,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2022-12-14 17:56:02,154 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2022-12-14 17:56:02,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 17:56:02,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:56:02,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:56:02,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 17:56:02,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 17:56:02,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 17:56:02,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2022-12-14 17:56:02,389 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-12-14 17:56:02,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 17:56:02,390 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 17:56:02,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 17:56:02,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 17:56:02,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 17:56:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 17:56:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 17:56:02,451 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 17:56:02,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 17:56:02,470 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-12-14 17:56:02,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 05:56:02 ImpRootNode [2022-12-14 17:56:02,497 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 17:56:02,498 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 17:56:02,498 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 17:56:02,498 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 17:56:02,498 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:56:01" (3/4) ... [2022-12-14 17:56:02,500 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 17:56:02,534 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 17:56:02,534 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 17:56:02,535 INFO L158 Benchmark]: Toolchain (without parser) took 1293.70ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 101.7MB in the end (delta: -2.9MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-12-14 17:56:02,535 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 17:56:02,536 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.59ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 88.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 17:56:02,536 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.02ms. Allocated memory is still 130.0MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 17:56:02,537 INFO L158 Benchmark]: Boogie Preprocessor took 12.03ms. Allocated memory is still 130.0MB. Free memory was 87.0MB in the beginning and 85.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 17:56:02,537 INFO L158 Benchmark]: RCFGBuilder took 227.69ms. Allocated memory is still 130.0MB. Free memory was 85.8MB in the beginning and 75.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 17:56:02,538 INFO L158 Benchmark]: CodeCheck took 836.44ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 75.4MB in the beginning and 103.0MB in the end (delta: -27.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2022-12-14 17:56:02,538 INFO L158 Benchmark]: Witness Printer took 36.82ms. Allocated memory is still 157.3MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 17:56:02,541 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: 0.8s, 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, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.1s 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, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s 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 0.16ms. Allocated memory is still 130.0MB. Free memory is still 102.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.59ms. Allocated memory is still 130.0MB. Free memory was 98.4MB in the beginning and 88.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.02ms. Allocated memory is still 130.0MB. Free memory was 88.4MB in the beginning and 87.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.03ms. Allocated memory is still 130.0MB. Free memory was 87.0MB in the beginning and 85.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 227.69ms. Allocated memory is still 130.0MB. Free memory was 85.8MB in the beginning and 75.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 836.44ms. Allocated memory was 130.0MB in the beginning and 157.3MB in the end (delta: 27.3MB). Free memory was 75.4MB in the beginning and 103.0MB in the end (delta: -27.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * Witness Printer took 36.82ms. Allocated memory is still 157.3MB. Free memory was 103.0MB in the beginning and 101.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-14 17:56:02,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8704e27-7aa7-4fc8-8689-98ddf2d45260/bin/ukojak-rkRKPMF4O4/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