./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Piecewise.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_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/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_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/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_24735f2f-3c18-4d37-8d27-f29c2666b2fe/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 36155f521cfe170e9c03fd915618e68821fe0430 .............................................................................................................................................................................................................................................................. 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 04:37:19,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:37:19,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:37:19,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:37:19,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:37:19,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:37:19,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:37:19,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:37:19,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:37:19,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:37:19,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:37:19,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:37:19,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:37:19,271 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:37:19,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:37:19,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:37:19,281 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:37:19,282 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:37:19,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:37:19,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:37:19,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:37:19,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:37:19,299 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:37:19,300 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:37:19,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:37:19,306 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:37:19,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:37:19,309 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:37:19,309 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:37:19,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:37:19,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:37:19,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:37:19,315 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:37:19,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:37:19,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:37:19,318 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:37:19,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:37:19,319 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:37:19,319 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:37:19,320 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:37:19,321 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:37:19,322 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:37:19,366 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:37:19,367 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:37:19,368 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:37:19,368 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:37:19,370 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:37:19,370 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:37:19,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:37:19,371 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:37:19,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:37:19,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:37:19,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:37:19,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:37:19,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:37:19,379 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:37:19,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:37:19,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:37:19,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:37:19,380 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:37:19,380 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:37:19,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:37:19,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:37:19,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:37:19,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:37:19,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:37:19,382 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:37:19,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:37:19,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:37:19,382 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_24735f2f-3c18-4d37-8d27-f29c2666b2fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36155f521cfe170e9c03fd915618e68821fe0430 [2021-10-13 04:37:19,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:37:19,718 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:37:19,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:37:19,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:37:19,722 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:37:19,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2021-10-13 04:37:19,798 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/data/0e6b6b38c/d38cb0264fba4b77bcdb0dfecf897a2d/FLAGf7f2a32b9 [2021-10-13 04:37:20,246 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:37:20,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/sv-benchmarks/c/termination-crafted/Piecewise.c [2021-10-13 04:37:20,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/data/0e6b6b38c/d38cb0264fba4b77bcdb0dfecf897a2d/FLAGf7f2a32b9 [2021-10-13 04:37:20,642 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/data/0e6b6b38c/d38cb0264fba4b77bcdb0dfecf897a2d [2021-10-13 04:37:20,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:37:20,649 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:37:20,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:37:20,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:37:20,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:37:20,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@412df26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20, skipping insertion in model container [2021-10-13 04:37:20,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:37:20,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:37:20,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:37:20,896 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:37:20,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:37:20,921 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:37:20,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20 WrapperNode [2021-10-13 04:37:20,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:37:20,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:37:20,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:37:20,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:37:20,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:37:20,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:37:20,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:37:20,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:37:20,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,969 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:37:20,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:37:20,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:37:20,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:37:20,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:20" (1/1) ... [2021-10-13 04:37:20,982 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:37:20,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:37:21,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:37:21,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:37:21,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:37:21,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:37:21,318 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:37:21,318 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 04:37:21,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:21 BoogieIcfgContainer [2021-10-13 04:37:21,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:37:21,321 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:37:21,322 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:37:21,345 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:37:21,345 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:21" (1/1) ... [2021-10-13 04:37:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:37:21,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:21,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-10-13 04:37:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-13 04:37:21,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:37:21,388 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:21,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:21,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:21,562 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 04:37:21,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:21,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2021-10-13 04:37:21,649 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2021-10-13 04:37:21,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:37:21,650 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:21,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:21,686 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 04:37:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:21,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-10-13 04:37:21,816 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-10-13 04:37:21,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:37:21,817 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:21,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:21,846 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 04:37:21,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:21,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2021-10-13 04:37:21,956 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2021-10-13 04:37:21,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:37:21,956 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:21,957 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:21,988 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 04:37:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2021-10-13 04:37:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2021-10-13 04:37:22,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:37:22,133 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:22,133 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:22,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:37:22,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:22,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2021-10-13 04:37:22,284 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2021-10-13 04:37:22,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 04:37:22,284 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:22,285 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:37:22,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-13 04:37:22,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-10-13 04:37:22,417 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-13 04:37:22,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 04:37:22,417 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-10-13 04:37:22,424 INFO L759 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-10-13 04:37:22,477 INFO L565 CodeCheckObserver]: Invariant with dag size 3 [2021-10-13 04:37:22,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:37:22 ImpRootNode [2021-10-13 04:37:22,488 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:37:22,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:37:22,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:37:22,490 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:37:22,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:21" (3/4) ... [2021-10-13 04:37:22,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 04:37:22,507 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 04:37:22,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 04:37:22,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 04:37:22,571 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:37:22,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:37:22,573 INFO L168 Benchmark]: Toolchain (without parser) took 1922.79 ms. Allocated memory is still 127.9 MB. Free memory was 94.0 MB in the beginning and 51.9 MB in the end (delta: 42.1 MB). Peak memory consumption was 38.9 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:22,573 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 55.7 MB in the beginning and 55.7 MB in the end (delta: 28.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:22,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.39 ms. Allocated memory is still 127.9 MB. Free memory was 93.7 MB in the beginning and 105.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:22,574 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.97 ms. Allocated memory is still 127.9 MB. Free memory was 105.7 MB in the beginning and 104.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:22,579 INFO L168 Benchmark]: Boogie Preprocessor took 16.90 ms. Allocated memory is still 127.9 MB. Free memory was 104.4 MB in the beginning and 102.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:22,580 INFO L168 Benchmark]: RCFGBuilder took 351.11 ms. Allocated memory is still 127.9 MB. Free memory was 102.9 MB in the beginning and 93.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:22,581 INFO L168 Benchmark]: CodeCheck took 1166.89 ms. Allocated memory is still 127.9 MB. Free memory was 93.8 MB in the beginning and 54.0 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:22,582 INFO L168 Benchmark]: Witness Printer took 80.97 ms. Allocated memory is still 127.9 MB. Free memory was 54.0 MB in the beginning and 51.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:22,590 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1055.5ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 0 SDtfs, 496 SDslu, 0 SDs, 0 SdLazy, 2070 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 688.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 402.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 11.0ms SsaConstructionTime, 62.8ms SatisfiabilityAnalysisTime, 238.8ms InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: 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: 22]: Loop Invariant Derived loop invariant: q <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 55.7 MB in the beginning and 55.7 MB in the end (delta: 28.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 270.39 ms. Allocated memory is still 127.9 MB. Free memory was 93.7 MB in the beginning and 105.7 MB in the end (delta: -11.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.97 ms. Allocated memory is still 127.9 MB. Free memory was 105.7 MB in the beginning and 104.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.90 ms. Allocated memory is still 127.9 MB. Free memory was 104.4 MB in the beginning and 102.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 351.11 ms. Allocated memory is still 127.9 MB. Free memory was 102.9 MB in the beginning and 93.8 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 1166.89 ms. Allocated memory is still 127.9 MB. Free memory was 93.8 MB in the beginning and 54.0 MB in the end (delta: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * Witness Printer took 80.97 ms. Allocated memory is still 127.9 MB. Free memory was 54.0 MB in the beginning and 51.9 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 04:37:22,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_24735f2f-3c18-4d37-8d27-f29c2666b2fe/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...