./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark35_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark35_linear.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak --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 32bit --witnessprinter.graph.data.programhash c943a364d2a5449039a4c16c790d2052154a1aec ................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 19:39:18,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 19:39:18,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 19:39:18,548 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 19:39:18,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 19:39:18,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 19:39:18,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 19:39:18,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 19:39:18,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 19:39:18,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 19:39:18,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 19:39:18,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 19:39:18,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 19:39:18,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 19:39:18,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 19:39:18,569 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 19:39:18,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 19:39:18,572 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 19:39:18,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 19:39:18,578 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 19:39:18,581 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 19:39:18,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 19:39:18,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 19:39:18,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 19:39:18,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 19:39:18,598 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 19:39:18,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 19:39:18,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 19:39:18,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 19:39:18,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 19:39:18,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 19:39:18,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 19:39:18,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 19:39:18,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 19:39:18,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 19:39:18,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 19:39:18,616 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 19:39:18,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 19:39:18,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 19:39:18,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 19:39:18,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 19:39:18,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-29 19:39:18,669 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 19:39:18,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 19:39:18,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 19:39:18,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 19:39:18,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 19:39:18,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 19:39:18,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 19:39:18,675 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 19:39:18,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 19:39:18,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 19:39:18,677 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 19:39:18,677 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 19:39:18,677 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 19:39:18,678 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 19:39:18,678 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 19:39:18,678 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 19:39:18,678 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 19:39:18,679 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 19:39:18,679 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 19:39:18,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 19:39:18,679 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 19:39:18,680 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 19:39:18,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 19:39:18,680 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 19:39:18,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:39:18,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 19:39:18,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 19:39:18,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 19:39:18,681 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 19:39:18,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 19:39:18,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 19:39:18,684 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-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c943a364d2a5449039a4c16c790d2052154a1aec [2020-11-29 19:39:19,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 19:39:19,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 19:39:19,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 19:39:19,058 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 19:39:19,059 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 19:39:19,060 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark35_linear.i [2020-11-29 19:39:19,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/data/f726df151/11695c8d1a16417092d567b0bd1aacc2/FLAGdb35be0d1 [2020-11-29 19:39:19,700 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 19:39:19,701 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/sv-benchmarks/c/loop-zilu/benchmark35_linear.i [2020-11-29 19:39:19,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/data/f726df151/11695c8d1a16417092d567b0bd1aacc2/FLAGdb35be0d1 [2020-11-29 19:39:20,069 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/data/f726df151/11695c8d1a16417092d567b0bd1aacc2 [2020-11-29 19:39:20,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 19:39:20,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 19:39:20,075 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 19:39:20,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 19:39:20,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 19:39:20,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fb0ba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20, skipping insertion in model container [2020-11-29 19:39:20,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 19:39:20,116 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 19:39:20,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:39:20,320 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 19:39:20,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 19:39:20,375 INFO L208 MainTranslator]: Completed translation [2020-11-29 19:39:20,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20 WrapperNode [2020-11-29 19:39:20,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 19:39:20,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 19:39:20,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 19:39:20,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 19:39:20,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 19:39:20,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 19:39:20,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 19:39:20,434 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 19:39:20,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,453 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,458 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 19:39:20,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 19:39:20,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 19:39:20,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 19:39:20,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 07:39:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 19:39:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 19:39:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 19:39:20,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 19:39:20,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 19:39:20,879 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 19:39:20,880 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 19:39:20,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:39:20 BoogieIcfgContainer [2020-11-29 19:39:20,883 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 19:39:20,884 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 19:39:20,884 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 19:39:20,904 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 19:39:20,917 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:39:20" (1/1) ... [2020-11-29 19:39:20,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 19:39:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:39:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2020-11-29 19:39:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-29 19:39:21,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 19:39:21,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:39:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:21,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:39:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-29 19:39:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-29 19:39:21,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 19:39:21,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 19:39:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 19:39:21,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 19:39:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 19:39:21,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2020-11-29 19:39:21,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2020-11-29 19:39:21,391 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 19:39:21,392 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-11-29 19:39:21,399 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-29 19:39:21,442 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 19:39:21,447 INFO L569 CodeCheckObserver]: Invariant with dag size 5 [2020-11-29 19:39:21,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 07:39:21 ImpRootNode [2020-11-29 19:39:21,456 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 19:39:21,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 19:39:21,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 19:39:21,457 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 19:39:21,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 07:39:20" (3/4) ... [2020-11-29 19:39:21,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 19:39:21,473 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 19:39:21,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 19:39:21,474 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:39:21,475 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 19:39:21,530 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1f7e38fc-502c-4d32-ab92-717795bc607b/bin/ukojak/witness.graphml [2020-11-29 19:39:21,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 19:39:21,537 INFO L168 Benchmark]: Toolchain (without parser) took 1458.01 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 58.1 MB in the beginning and 82.8 MB in the end (delta: -24.7 MB). Peak memory consumption was 478.7 kB. Max. memory is 16.1 GB. [2020-11-29 19:39:21,538 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:21,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.74 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 57.9 MB in the beginning and 92.5 MB in the end (delta: -34.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:21,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.32 ms. Allocated memory is still 115.3 MB. Free memory was 92.5 MB in the beginning and 91.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:21,540 INFO L168 Benchmark]: Boogie Preprocessor took 24.92 ms. Allocated memory is still 115.3 MB. Free memory was 91.3 MB in the beginning and 90.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:21,541 INFO L168 Benchmark]: RCFGBuilder took 423.44 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 75.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:21,541 INFO L168 Benchmark]: CodeCheck took 572.37 ms. Allocated memory is still 115.3 MB. Free memory was 74.9 MB in the beginning and 84.9 MB in the end (delta: -9.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 19:39:21,542 INFO L168 Benchmark]: Witness Printer took 73.24 ms. Allocated memory is still 115.3 MB. Free memory was 84.9 MB in the beginning and 82.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 19:39:21,545 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, 9 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 12 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 42 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 <= x + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 90.2 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 302.74 ms. Allocated memory was 90.2 MB in the beginning and 115.3 MB in the end (delta: 25.2 MB). Free memory was 57.9 MB in the beginning and 92.5 MB in the end (delta: -34.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.32 ms. Allocated memory is still 115.3 MB. Free memory was 92.5 MB in the beginning and 91.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.92 ms. Allocated memory is still 115.3 MB. Free memory was 91.3 MB in the beginning and 90.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 423.44 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 75.3 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 572.37 ms. Allocated memory is still 115.3 MB. Free memory was 74.9 MB in the beginning and 84.9 MB in the end (delta: -9.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 73.24 ms. Allocated memory is still 115.3 MB. Free memory was 84.9 MB in the beginning and 82.8 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! Received shutdown request...