./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 b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI --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 ac2fbc3b92c237eee672d002679ee7a51e4ecff20f91c05c8145e18adc82f593 .............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:22:41,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:22:41,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:22:41,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:22:41,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:22:41,451 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:22:41,453 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:22:41,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:22:41,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:22:41,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:22:41,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:22:41,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:22:41,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:22:41,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:22:41,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:22:41,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:22:41,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:22:41,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:22:41,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:22:41,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:22:41,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:22:41,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:22:41,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:22:41,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:22:41,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:22:41,514 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:22:41,515 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:22:41,516 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:22:41,517 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:22:41,518 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:22:41,519 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:22:41,520 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:22:41,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:22:41,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:22:41,524 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:22:41,524 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:22:41,525 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:22:41,525 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:22:41,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:22:41,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:22:41,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:22:41,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-29 04:22:41,555 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:22:41,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:22:41,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:22:41,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:22:41,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:22:41,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:22:41,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:22:41,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:22:41,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:22:41,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:22:41,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:22:41,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:22:41,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:22:41,560 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-29 04:22:41,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:22:41,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:22:41,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:22:41,562 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:22:41,562 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:22:41,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:22:41,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:22:41,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:22:41,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:22:41,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:22:41,564 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:22:41,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:22:41,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:22:41,564 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_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac2fbc3b92c237eee672d002679ee7a51e4ecff20f91c05c8145e18adc82f593 [2021-10-29 04:22:41,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:22:41,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:22:41,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:22:41,905 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:22:41,906 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:22:41,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2021-10-29 04:22:41,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/data/668f4854f/db9c8f4d2e5a4bbfbf1adf51720c2313/FLAGb67674130 [2021-10-29 04:22:42,526 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:22:42,527 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/sv-benchmarks/c/termination-crafted/Piecewise.c [2021-10-29 04:22:42,543 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/data/668f4854f/db9c8f4d2e5a4bbfbf1adf51720c2313/FLAGb67674130 [2021-10-29 04:22:42,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/data/668f4854f/db9c8f4d2e5a4bbfbf1adf51720c2313 [2021-10-29 04:22:42,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:22:42,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:22:42,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:22:42,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:22:42,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:22:42,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:22:42" (1/1) ... [2021-10-29 04:22:42,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff8ea2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:42, skipping insertion in model container [2021-10-29 04:22:42,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:22:42" (1/1) ... [2021-10-29 04:22:42,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:22:42,917 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:22:43,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:22:43,103 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:22:43,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:22:43,141 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:22:43,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43 WrapperNode [2021-10-29 04:22:43,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:22:43,143 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:22:43,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:22:43,144 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:22:43,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,177 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:22:43,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:22:43,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:22:43,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:22:43,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,190 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,193 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,197 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:22:43,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:22:43,206 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:22:43,206 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:22:43,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:22:43,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:22:43,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:22:43,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:22:43,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:22:43,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:22:43,592 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:22:43,593 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 04:22:43,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:22:43 BoogieIcfgContainer [2021-10-29 04:22:43,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:22:43,597 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:22:43,612 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:22:43,624 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:22:43,625 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:22:43" (1/1) ... [2021-10-29 04:22:43,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:22:43,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:43,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2021-10-29 04:22:43,738 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-10-29 04:22:43,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:22:43,741 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:22:43,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:22:43,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:22:43,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:22:44,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2021-10-29 04:22:44,007 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2021-10-29 04:22:44,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:22:44,008 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:22:44,008 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:22:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:22:44,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:22:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:44,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2021-10-29 04:22:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2021-10-29 04:22:44,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:22:44,159 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:22:44,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:22:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:22:44,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:22:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2021-10-29 04:22:44,408 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2021-10-29 04:22:44,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 04:22:44,409 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:22:44,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:22:44,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:22:44,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:22:44,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:44,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2021-10-29 04:22:44,617 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2021-10-29 04:22:44,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 04:22:44,620 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:22:44,621 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:22:44,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:22:44,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:22:44,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:44,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2021-10-29 04:22:44,781 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2021-10-29 04:22:44,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 04:22:44,782 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:22:44,783 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:22:44,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:22:44,837 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 04:22:44,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:22:44,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2021-10-29 04:22:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-10-29 04:22:44,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 04:22:44,925 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-10-29 04:22:44,937 INFO L759 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-10-29 04:22:44,990 INFO L565 CodeCheckObserver]: Invariant with dag size 3 [2021-10-29 04:22:45,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:22:45 ImpRootNode [2021-10-29 04:22:45,002 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:22:45,005 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:22:45,005 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:22:45,005 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:22:45,006 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:22:43" (3/4) ... [2021-10-29 04:22:45,010 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 04:22:45,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 04:22:45,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-29 04:22:45,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 04:22:45,083 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:22:45,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:22:45,088 INFO L168 Benchmark]: Toolchain (without parser) took 2211.26 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 44.1 MB in the beginning and 55.1 MB in the end (delta: -11.0 MB). Peak memory consumption was 9.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:22:45,088 INFO L168 Benchmark]: CDTParser took 1.54 ms. Allocated memory is still 81.8 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:22:45,090 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.26 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 44.0 MB in the beginning and 81.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-29 04:22:45,090 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.77 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 80.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:22:45,091 INFO L168 Benchmark]: Boogie Preprocessor took 25.78 ms. Allocated memory is still 102.8 MB. Free memory was 80.0 MB in the beginning and 79.2 MB in the end (delta: 839.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:22:45,091 INFO L168 Benchmark]: RCFGBuilder took 390.50 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 70.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:22:45,092 INFO L168 Benchmark]: CodeCheck took 1405.64 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 57.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:22:45,093 INFO L168 Benchmark]: Witness Printer took 79.90 ms. Allocated memory is still 102.8 MB. Free memory was 57.2 MB in the beginning and 55.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:22:45,101 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: 1.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 496 SDslu, 0 SDs, 0 SdLazy, 2070 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s 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, 0.0s 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 1.54 ms. Allocated memory is still 81.8 MB. Free memory is still 60.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.26 ms. Allocated memory was 81.8 MB in the beginning and 102.8 MB in the end (delta: 21.0 MB). Free memory was 44.0 MB in the beginning and 81.4 MB in the end (delta: -37.5 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.77 ms. Allocated memory is still 102.8 MB. Free memory was 81.2 MB in the beginning and 80.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.78 ms. Allocated memory is still 102.8 MB. Free memory was 80.0 MB in the beginning and 79.2 MB in the end (delta: 839.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 390.50 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 70.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1405.64 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 57.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 79.90 ms. Allocated memory is still 102.8 MB. Free memory was 57.2 MB in the beginning and 55.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 04:22:45,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b848b865-b200-4009-9524-c6cf71c4721d/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...