./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Parallel.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_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Parallel.c -s /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/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 fa16f28cdab01c0d49bf2bd46e148912a30ce280 ..................................................................................................................................................................................................................................................................... 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 04:42:47,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:47,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:47,945 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:47,946 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:47,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:47,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:47,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:47,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:47,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:47,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:47,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:47,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:47,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:47,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:47,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:47,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:47,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:47,970 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:47,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:47,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:47,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:47,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:47,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:47,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:47,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:47,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:47,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:47,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:47,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:47,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:47,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:47,995 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:47,999 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:48,000 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:48,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:48,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:48,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:48,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:48,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:48,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:48,005 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:42:48,044 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:48,045 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:48,046 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:42:48,046 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:42:48,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:48,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:48,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:48,048 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:42:48,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:48,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:48,049 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:42:48,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:48,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:42:48,050 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:42:48,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:42:48,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:48,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:42:48,051 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:48,051 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:48,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:48,052 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:48,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:48,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:48,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:48,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:42:48,053 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:48,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:48,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:42:48,053 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_9079e81c-eaff-40ed-bea9-20e0fc12efa6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa16f28cdab01c0d49bf2bd46e148912a30ce280 [2020-11-28 04:42:48,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:48,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:48,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:48,371 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:48,372 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:48,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Parallel.c [2020-11-28 04:42:48,465 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/data/10edc9a48/bc9c03c455d940e19254702acfbf3c22/FLAGe3fe113bc [2020-11-28 04:42:48,908 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:48,908 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/sv-benchmarks/c/termination-crafted/Parallel.c [2020-11-28 04:42:48,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/data/10edc9a48/bc9c03c455d940e19254702acfbf3c22/FLAGe3fe113bc [2020-11-28 04:42:49,319 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/data/10edc9a48/bc9c03c455d940e19254702acfbf3c22 [2020-11-28 04:42:49,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:49,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:49,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:49,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:49,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:49,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,332 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@756c277c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49, skipping insertion in model container [2020-11-28 04:42:49,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:49,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:49,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:49,494 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:49,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:49,540 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:49,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49 WrapperNode [2020-11-28 04:42:49,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:49,542 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:49,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:49,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:49,551 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,555 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:49,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:49,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:49,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:49,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:49,602 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:49,602 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:49,602 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:49,603 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/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 04:42:49,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:49,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:49,932 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:49,932 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:42:49,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:49 BoogieIcfgContainer [2020-11-28 04:42:49,934 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:49,935 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:49,935 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:49,961 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:49,961 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:49" (1/1) ... [2020-11-28 04:42:49,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:42:50,012 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:42:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:42:50,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,203 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 04:42:50,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2020-11-28 04:42:50,306 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2020-11-28 04:42:50,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:42:50,306 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,348 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 04:42:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-28 04:42:50,478 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-28 04:42:50,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:42:50,480 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,560 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 04:42:50,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2020-11-28 04:42:50,731 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2020-11-28 04:42:50,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:42:50,731 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,771 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 04:42:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2020-11-28 04:42:50,857 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2020-11-28 04:42:50,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:50,857 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:50,911 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 04:42:50,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:50,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2020-11-28 04:42:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2020-11-28 04:42:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:50,992 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:50,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:51,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2020-11-28 04:42:51,269 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2020-11-28 04:42:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:51,270 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:51,303 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:42:51,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:51,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2020-11-28 04:42:51,508 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2020-11-28 04:42:51,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:51,509 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:51,548 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 04:42:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:51,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-28 04:42:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-28 04:42:51,724 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:42:51,724 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-28 04:42:51,730 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-28 04:42:51,793 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-11-28 04:42:51,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:51 ImpRootNode [2020-11-28 04:42:51,805 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:51,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:51,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:51,806 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:51,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:49" (3/4) ... [2020-11-28 04:42:51,810 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:42:51,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:42:51,817 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:42:51,818 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:42:51,855 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9079e81c-eaff-40ed-bea9-20e0fc12efa6/bin/ukojak/witness.graphml [2020-11-28 04:42:51,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:51,857 INFO L168 Benchmark]: Toolchain (without parser) took 2532.77 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 74.0 MB in the beginning and 90.5 MB in the end (delta: -16.4 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:51,858 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory was 37.0 MB in the beginning and 36.9 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:51,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.37 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 83.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:51,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 104.9 MB. Free memory was 83.7 MB in the beginning and 82.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:51,860 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 104.9 MB. Free memory was 82.4 MB in the beginning and 81.8 MB in the end (delta: 614.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:51,861 INFO L168 Benchmark]: RCFGBuilder took 332.27 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 71.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:51,861 INFO L168 Benchmark]: CodeCheck took 1869.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.0 MB in the beginning and 92.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:51,862 INFO L168 Benchmark]: Witness Printer took 49.95 ms. Allocated memory is still 125.8 MB. Free memory was 92.6 MB in the beginning and 90.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:51,866 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, 12 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.7s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 512 SDtfs, 1426 SDslu, 512 SDs, 0 SdLazy, 5684 SolverSat, 1442 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 448 GetRequests, 388 SyntacticMatches, 14 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 875 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 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: 26]: 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: 26]: 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: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 79.7 MB. Free memory was 37.0 MB in the beginning and 36.9 MB in the end (delta: 37.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.37 ms. Allocated memory is still 104.9 MB. Free memory was 74.0 MB in the beginning and 83.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.75 ms. Allocated memory is still 104.9 MB. Free memory was 83.7 MB in the beginning and 82.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.45 ms. Allocated memory is still 104.9 MB. Free memory was 82.4 MB in the beginning and 81.8 MB in the end (delta: 614.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 332.27 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 71.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 1869.73 ms. Allocated memory was 104.9 MB in the beginning and 125.8 MB in the end (delta: 21.0 MB). Free memory was 71.0 MB in the beginning and 92.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 1.5 MB. Max. memory is 16.1 GB. * Witness Printer took 49.95 ms. Allocated memory is still 125.8 MB. Free memory was 92.6 MB in the beginning and 90.5 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...