./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bbffee41c5a3e36a7439f4e96877154fc3cf2a16 .......................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:58:36,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:58:36,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:58:36,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:58:36,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:58:36,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:58:36,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:58:36,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:58:36,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:58:36,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:58:36,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:58:36,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:58:36,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:58:36,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:58:36,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:58:36,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:58:36,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:58:36,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:58:36,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:58:36,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:58:36,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:58:36,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:58:36,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:58:36,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:58:36,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:58:36,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:58:36,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:58:36,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:58:36,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:58:36,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:58:36,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:58:36,415 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:58:36,416 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:58:36,417 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:58:36,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:58:36,419 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:58:36,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:58:36,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:58:36,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:58:36,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:58:36,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:58:36,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:58:36,462 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:58:36,467 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:58:36,472 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:58:36,472 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:58:36,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:58:36,473 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:58:36,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:58:36,474 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:58:36,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:58:36,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:58:36,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:58:36,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:58:36,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:58:36,475 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:58:36,475 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:58:36,476 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:58:36,476 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:58:36,476 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:58:36,476 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:58:36,476 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:58:36,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:58:36,477 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:58:36,477 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:58:36,477 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:58:36,478 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:58:36,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:58:36,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:58:36,478 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_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bbffee41c5a3e36a7439f4e96877154fc3cf2a16 [2021-10-13 04:58:36,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:58:36,746 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:58:36,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:58:36,750 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:58:36,751 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:58:36,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2021-10-13 04:58:36,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/data/7a7e730fc/5d3d5cbb26e945479c86917a55f9b983/FLAGdc8bbf11b [2021-10-13 04:58:37,252 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:58:37,252 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig1.c [2021-10-13 04:58:37,258 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/data/7a7e730fc/5d3d5cbb26e945479c86917a55f9b983/FLAGdc8bbf11b [2021-10-13 04:58:37,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/data/7a7e730fc/5d3d5cbb26e945479c86917a55f9b983 [2021-10-13 04:58:37,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:58:37,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:58:37,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:58:37,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:58:37,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:58:37,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49f7f641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37, skipping insertion in model container [2021-10-13 04:58:37,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:58:37,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:58:37,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:58:37,821 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:58:37,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:58:37,850 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:58:37,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37 WrapperNode [2021-10-13 04:58:37,850 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:58:37,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:58:37,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:58:37,852 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:58:37,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,864 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,880 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:58:37,881 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:58:37,881 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:58:37,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:58:37,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:58:37,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:58:37,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:58:37,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:58:37,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:58:37" (1/1) ... [2021-10-13 04:58:37,908 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:58:37,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:58:37,931 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:58:37,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:58:37,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:58:37,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:58:38,181 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:58:38,181 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 04:58:38,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:38 BoogieIcfgContainer [2021-10-13 04:58:38,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:58:38,185 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:58:38,185 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:58:38,197 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:58:38,197 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:38" (1/1) ... [2021-10-13 04:58:38,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:58:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:38,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2021-10-13 04:58:38,251 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2021-10-13 04:58:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:58:38,253 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:58:38,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:58:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:58:38,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:58:38,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-10-13 04:58:38,404 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-10-13 04:58:38,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:58:38,404 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:58:38,404 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:58:38,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:58:38,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:58:38,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:58:38,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2021-10-13 04:58:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2021-10-13 04:58:38,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 04:58:38,480 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2021-10-13 04:58:38,486 INFO L759 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2021-10-13 04:58:38,500 INFO L565 CodeCheckObserver]: Invariant with dag size 1 [2021-10-13 04:58:38,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:58:38 ImpRootNode [2021-10-13 04:58:38,503 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:58:38,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:58:38,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:58:38,505 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:58:38,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:58:38" (3/4) ... [2021-10-13 04:58:38,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 04:58:38,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 04:58:38,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 04:58:38,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 04:58:38,553 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:58:38,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:58:38,556 INFO L168 Benchmark]: Toolchain (without parser) took 895.18 ms. Allocated memory is still 117.4 MB. Free memory was 83.6 MB in the beginning and 68.0 MB in the end (delta: 15.6 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:38,556 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory is still 34.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:58:38,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.92 ms. Allocated memory is still 117.4 MB. Free memory was 83.4 MB in the beginning and 93.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:38,559 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.18 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:58:38,560 INFO L168 Benchmark]: Boogie Preprocessor took 17.41 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 91.0 MB in the end (delta: 998.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:38,561 INFO L168 Benchmark]: RCFGBuilder took 284.78 ms. Allocated memory is still 117.4 MB. Free memory was 91.0 MB in the beginning and 82.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:38,562 INFO L168 Benchmark]: CodeCheck took 318.78 ms. Allocated memory is still 117.4 MB. Free memory was 82.7 MB in the beginning and 70.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:38,563 INFO L168 Benchmark]: Witness Printer took 49.25 ms. Allocated memory is still 117.4 MB. Free memory was 70.1 MB in the beginning and 68.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:58:38,569 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 1 procedures, 8 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 251.3ms, OverallIterations: 3, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 36 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 35.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 44.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 3.8ms SsaConstructionTime, 14.2ms SatisfiabilityAnalysisTime, 67.0ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 75.5 MB. Free memory is still 34.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 188.92 ms. Allocated memory is still 117.4 MB. Free memory was 83.4 MB in the beginning and 93.2 MB in the end (delta: -9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.18 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 92.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.41 ms. Allocated memory is still 117.4 MB. Free memory was 92.0 MB in the beginning and 91.0 MB in the end (delta: 998.2 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 284.78 ms. Allocated memory is still 117.4 MB. Free memory was 91.0 MB in the beginning and 82.7 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 318.78 ms. Allocated memory is still 117.4 MB. Free memory was 82.7 MB in the beginning and 70.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 49.25 ms. Allocated memory is still 117.4 MB. Free memory was 70.1 MB in the beginning and 68.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-13 04:58:38,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af8ca453-1952-4784-affe-23acb7a66d4b/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...