./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/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 64bit --witnessprinter.graph.data.programhash 36155f521cfe170e9c03fd915618e68821fe0430 ....................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:44:53,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:53,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:53,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:53,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:53,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:53,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:53,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:53,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:53,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:53,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:53,426 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:53,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:53,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:53,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:53,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:53,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:53,440 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:53,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:53,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:53,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:53,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:53,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:53,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:53,461 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:53,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:53,462 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:53,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:53,465 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:53,466 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:53,467 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:53,468 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:53,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:53,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:53,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:53,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:53,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:53,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:53,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:53,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:53,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:53,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:44:53,520 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:53,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:53,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:53,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:53,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:53,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:53,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:53,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:44:53,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:53,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:53,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:53,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:53,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:53,525 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:44:53,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:53,526 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:53,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:53,526 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:53,526 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:53,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:53,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:53,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:53,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:53,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:53,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:53,528 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:53,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:53,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:53,528 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_6883c24d-c9bc-418f-abea-8891ed259680/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36155f521cfe170e9c03fd915618e68821fe0430 [2020-11-28 04:44:53,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:53,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:53,829 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:53,831 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:53,832 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:53,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2020-11-28 04:44:53,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/data/046c942f9/a0a2cc81419846e4a0e037328e9b7ddc/FLAG5d548ca4a [2020-11-28 04:44:54,509 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:54,512 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/sv-benchmarks/c/termination-crafted/Piecewise.c [2020-11-28 04:44:54,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/data/046c942f9/a0a2cc81419846e4a0e037328e9b7ddc/FLAG5d548ca4a [2020-11-28 04:44:54,891 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/data/046c942f9/a0a2cc81419846e4a0e037328e9b7ddc [2020-11-28 04:44:54,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:54,896 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:54,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:54,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:54,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:54,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:54" (1/1) ... [2020-11-28 04:44:54,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36162e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:54, skipping insertion in model container [2020-11-28 04:44:54,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:54" (1/1) ... [2020-11-28 04:44:54,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:54,931 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:55,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:55,127 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:55,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:55,157 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:55,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55 WrapperNode [2020-11-28 04:44:55,172 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:55,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:55,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:55,186 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:55,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,200 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:55,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:55,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:55,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:55,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,233 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:55,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:55,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:55,241 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:55,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/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 [2020-11-28 04:44:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:55,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:55,750 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:55,751 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:44:55,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:55 BoogieIcfgContainer [2020-11-28 04:44:55,753 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:55,754 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:55,754 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:55,768 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:55,769 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:55" (1/1) ... [2020-11-28 04:44:55,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:55,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:55,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2020-11-28 04:44:55,836 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2020-11-28 04:44:55,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:44:55,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:56,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2020-11-28 04:44:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2020-11-28 04:44:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:44:56,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:56,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:56,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-11-28 04:44:56,468 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-11-28 04:44:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:44:56,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:56,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:56,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2020-11-28 04:44:56,714 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2020-11-28 04:44:56,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:56,714 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:56,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:57,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2020-11-28 04:44:57,001 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2020-11-28 04:44:57,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:44:57,004 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:57,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2020-11-28 04:44:57,176 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-11-28 04:44:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:57,177 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:57,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:57,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:44:57,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:57,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2020-11-28 04:44:57,314 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2020-11-28 04:44:57,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:57,315 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2020-11-28 04:44:57,321 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:44:57,402 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:44:57,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:57 ImpRootNode [2020-11-28 04:44:57,413 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:57,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:57,416 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:57,416 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:57,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:55" (3/4) ... [2020-11-28 04:44:57,421 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:57,432 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:44:57,433 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:44:57,433 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:57,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6883c24d-c9bc-418f-abea-8891ed259680/bin/ukojak/witness.graphml [2020-11-28 04:44:57,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:57,488 INFO L168 Benchmark]: Toolchain (without parser) took 2590.85 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 78.2 MB in the beginning and 53.8 MB in the end (delta: 24.3 MB). Peak memory consumption was 45.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:57,489 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 44.3 MB in the beginning and 44.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:57,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.56 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 81.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:57,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.95 ms. Allocated memory is still 102.8 MB. Free memory was 81.7 MB in the beginning and 80.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:57,492 INFO L168 Benchmark]: Boogie Preprocessor took 17.34 ms. Allocated memory is still 102.8 MB. Free memory was 80.3 MB in the beginning and 79.4 MB in the end (delta: 865.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:57,492 INFO L168 Benchmark]: RCFGBuilder took 512.72 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 68.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:57,493 INFO L168 Benchmark]: CodeCheck took 1658.48 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 68.5 MB in the beginning and 55.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:57,494 INFO L168 Benchmark]: Witness Printer took 71.06 ms. Allocated memory is still 123.7 MB. Free memory was 55.9 MB in the beginning and 53.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:57,498 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. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 496 SDslu, 0 SDs, 0 SdLazy, 2070 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 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: 27]: 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: 24]: 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 0.30 ms. Allocated memory is still 81.8 MB. Free memory was 44.3 MB in the beginning and 44.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.56 ms. Allocated memory is still 102.8 MB. Free memory was 78.0 MB in the beginning and 81.7 MB in the end (delta: -3.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.95 ms. Allocated memory is still 102.8 MB. Free memory was 81.7 MB in the beginning and 80.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.34 ms. Allocated memory is still 102.8 MB. Free memory was 80.3 MB in the beginning and 79.4 MB in the end (delta: 865.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 512.72 ms. Allocated memory is still 102.8 MB. Free memory was 79.4 MB in the beginning and 68.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 1658.48 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 68.5 MB in the beginning and 55.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 35.0 MB. Max. memory is 16.1 GB. * Witness Printer took 71.06 ms. Allocated memory is still 123.7 MB. Free memory was 55.9 MB in the beginning and 53.8 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...