./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --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 6bebda7974b4ee09f480826bc3895f6f62b6e4c0586920bb97da4d140e226dad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:57:08,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:57:09,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:57:09,136 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:57:09,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:57:09,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:57:09,184 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:57:09,184 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:57:09,186 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:57:09,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:57:09,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:57:09,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:57:09,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:57:09,197 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:57:09,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:57:09,198 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:57:09,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:57:09,199 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:57:09,200 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:57:09,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:57:09,201 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:57:09,202 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:57:09,203 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:57:09,203 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:57:09,204 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:57:09,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:09,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:57:09,205 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:57:09,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:57:09,206 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:57:09,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:57:09,208 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:57:09,209 INFO L153 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_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bebda7974b4ee09f480826bc3895f6f62b6e4c0586920bb97da4d140e226dad [2023-11-24 22:57:09,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:57:09,566 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:57:09,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:57:09,571 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:57:09,572 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:57:09,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i [2023-11-24 22:57:12,937 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:57:13,249 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:57:13,250 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/sv-benchmarks/c/termination-15/cstrcspn_diffterm_alloca.i [2023-11-24 22:57:13,263 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/data/9992fc7e0/5bfe43cc03cc4465b3bd26449bdc9ad4/FLAG92c751c2f [2023-11-24 22:57:13,279 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/data/9992fc7e0/5bfe43cc03cc4465b3bd26449bdc9ad4 [2023-11-24 22:57:13,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:57:13,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:57:13,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:13,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:57:13,295 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:57:13,296 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,298 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23958048 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13, skipping insertion in model container [2023-11-24 22:57:13,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,368 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:57:13,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:13,769 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:57:13,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:57:13,859 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:57:13,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13 WrapperNode [2023-11-24 22:57:13,860 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:57:13,861 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:13,861 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:57:13,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:57:13,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,890 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,915 INFO L138 Inliner]: procedures = 152, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2023-11-24 22:57:13,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:57:13,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:57:13,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:57:13,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:57:13,927 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,930 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,930 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,942 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,947 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:57:13,948 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:57:13,948 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:57:13,948 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:57:13,949 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:57:13" (1/1) ... [2023-11-24 22:57:13,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:57:13,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:57:13,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:57:14,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:57:14,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:57:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:57:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:57:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:57:14,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:57:14,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:57:14,121 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:57:14,123 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:57:14,325 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:57:14,450 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:57:14,455 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:57:14,457 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:14 BoogieIcfgContainer [2023-11-24 22:57:14,457 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:57:14,458 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:57:14,465 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:57:14,475 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:57:14,479 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:14" (1/1) ... [2023-11-24 22:57:14,489 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:57:14,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:14,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2023-11-24 22:57:14,533 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-24 22:57:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-24 22:57:14,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:14,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:14,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:14,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-24 22:57:14,825 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-24 22:57:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:57:14,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:14,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:15,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-11-24 22:57:15,092 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-24 22:57:15,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:57:15,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:15,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:15,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:15,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:15,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-24 22:57:15,446 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-24 22:57:15,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:57:15,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:57:15,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:57:15,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:57:15,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:57:15,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:57:15,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-24 22:57:15,854 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-24 22:57:15,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:57:15,855 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-24 22:57:15,865 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 22:57:15,894 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:57:15,903 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:57:15,903 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 22:57:15,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:57:15 ImpRootNode [2023-11-24 22:57:15,904 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:57:15,906 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:57:15,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:57:15,906 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:57:15,907 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:57:14" (3/4) ... [2023-11-24 22:57:15,912 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:57:15,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-24 22:57:15,923 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 22:57:15,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 22:57:15,924 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:57:16,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:57:16,036 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:57:16,036 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:57:16,037 INFO L158 Benchmark]: Toolchain (without parser) took 2753.21ms. Allocated memory is still 127.9MB. Free memory was 96.4MB in the beginning and 83.4MB in the end (delta: 13.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-24 22:57:16,037 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:57:16,038 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.70ms. Allocated memory is still 127.9MB. Free memory was 96.2MB in the beginning and 78.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 22:57:16,038 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.14ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 76.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:57:16,038 INFO L158 Benchmark]: Boogie Preprocessor took 30.41ms. Allocated memory is still 127.9MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:57:16,039 INFO L158 Benchmark]: RCFGBuilder took 509.40ms. Allocated memory is still 127.9MB. Free memory was 74.6MB in the beginning and 97.9MB in the end (delta: -23.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-24 22:57:16,040 INFO L158 Benchmark]: CodeCheck took 1445.58ms. Allocated memory is still 127.9MB. Free memory was 97.4MB in the beginning and 88.3MB in the end (delta: 9.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-24 22:57:16,040 INFO L158 Benchmark]: Witness Printer took 130.78ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 83.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:57:16,042 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 30 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 390]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 391]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 369]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 364]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 100.7MB. Free memory was 58.2MB in the beginning and 58.1MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.70ms. Allocated memory is still 127.9MB. Free memory was 96.2MB in the beginning and 78.2MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.14ms. Allocated memory is still 127.9MB. Free memory was 78.0MB in the beginning and 76.1MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.41ms. Allocated memory is still 127.9MB. Free memory was 76.1MB in the beginning and 74.8MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 509.40ms. Allocated memory is still 127.9MB. Free memory was 74.6MB in the beginning and 97.9MB in the end (delta: -23.3MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * CodeCheck took 1445.58ms. Allocated memory is still 127.9MB. Free memory was 97.4MB in the beginning and 88.3MB in the end (delta: 9.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 130.78ms. Allocated memory is still 127.9MB. Free memory was 88.3MB in the beginning and 83.4MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:57:16,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb2a98a6-90e8-4300-9e57-a1dec2db7a2b/bin/ukojak-verify-afCqCEvfdi/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 Result: TRUE