./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/easy1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/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 444b5d8373157a5e55f28060b712b2ca462d0fa9 ........................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 06:31:43,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 06:31:43,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 06:31:43,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 06:31:43,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 06:31:43,852 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 06:31:43,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 06:31:43,856 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 06:31:43,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 06:31:43,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 06:31:43,861 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 06:31:43,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 06:31:43,863 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 06:31:43,864 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 06:31:43,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 06:31:43,867 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 06:31:43,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 06:31:43,869 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 06:31:43,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 06:31:43,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 06:31:43,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 06:31:43,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 06:31:43,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 06:31:43,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 06:31:43,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 06:31:43,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 06:31:43,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 06:31:43,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 06:31:43,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 06:31:43,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 06:31:43,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 06:31:43,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 06:31:43,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 06:31:43,890 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 06:31:43,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 06:31:43,891 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 06:31:43,892 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 06:31:43,892 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 06:31:43,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 06:31:43,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 06:31:43,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 06:31:43,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 06:31:43,910 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 06:31:43,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 06:31:43,911 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 06:31:43,911 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 06:31:43,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 06:31:43,912 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 06:31:43,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 06:31:43,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 06:31:43,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 06:31:43,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 06:31:43,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 06:31:43,914 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 06:31:43,914 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 06:31:43,914 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 06:31:43,915 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 06:31:43,915 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 06:31:43,915 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 06:31:43,915 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 06:31:43,915 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 06:31:43,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 06:31:43,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 06:31:43,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 06:31:43,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 06:31:43,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 06:31:43,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 06:31:43,917 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 06:31:43,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 06:31:43,918 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 06:31:43,918 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_44a1c225-60d9-48ce-8c03-dd8a9f474b95/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 -> 444b5d8373157a5e55f28060b712b2ca462d0fa9 [2019-11-20 06:31:44,094 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 06:31:44,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 06:31:44,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 06:31:44,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 06:31:44,120 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 06:31:44,121 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/../../sv-benchmarks/c/termination-crafted/easy1.c [2019-11-20 06:31:44,197 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/data/c6c4fee98/4faa9272c2f64ae2bac4d0c80666e4c4/FLAGbf44bf36b [2019-11-20 06:31:44,726 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 06:31:44,727 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/sv-benchmarks/c/termination-crafted/easy1.c [2019-11-20 06:31:44,735 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/data/c6c4fee98/4faa9272c2f64ae2bac4d0c80666e4c4/FLAGbf44bf36b [2019-11-20 06:31:45,061 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/data/c6c4fee98/4faa9272c2f64ae2bac4d0c80666e4c4 [2019-11-20 06:31:45,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 06:31:45,066 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 06:31:45,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 06:31:45,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 06:31:45,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 06:31:45,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f06c6a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45, skipping insertion in model container [2019-11-20 06:31:45,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,085 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 06:31:45,104 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 06:31:45,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:31:45,345 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 06:31:45,371 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 06:31:45,470 INFO L192 MainTranslator]: Completed translation [2019-11-20 06:31:45,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45 WrapperNode [2019-11-20 06:31:45,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 06:31:45,473 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 06:31:45,473 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 06:31:45,473 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 06:31:45,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 06:31:45,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 06:31:45,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 06:31:45,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 06:31:45,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,542 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,549 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 06:31:45,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 06:31:45,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 06:31:45,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 06:31:45,557 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:31:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/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 [2019-11-20 06:31:45,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 06:31:45,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 06:31:45,894 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 06:31:45,895 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 06:31:45,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:31:45 BoogieIcfgContainer [2019-11-20 06:31:45,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 06:31:45,897 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 06:31:45,897 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 06:31:45,923 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 06:31:45,931 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:31:45" (1/1) ... [2019-11-20 06:31:45,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 06:31:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-11-20 06:31:45,995 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-20 06:31:46,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 06:31:46,001 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:46,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:31:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2019-11-20 06:31:46,255 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2019-11-20 06:31:46,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 06:31:46,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:31:46,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:46,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2019-11-20 06:31:46,296 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-20 06:31:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 06:31:46,297 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:46,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:31:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:46,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2019-11-20 06:31:46,463 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2019-11-20 06:31:46,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 06:31:46,466 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:46,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:46,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:31:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2019-11-20 06:31:46,531 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-20 06:31:46,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 06:31:46,531 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:46,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 06:31:46,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:46,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2019-11-20 06:31:46,665 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-11-20 06:31:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 06:31:46,666 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:46,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:46,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 06:31:47,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:47,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2019-11-20 06:31:47,185 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-20 06:31:47,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 06:31:47,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 06:31:47,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 06:31:47,213 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 06:31:47,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 06:31:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2019-11-20 06:31:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2019-11-20 06:31:47,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 06:31:47,229 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2019-11-20 06:31:47,241 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-11-20 06:31:47,344 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-11-20 06:31:47,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:31:47 ImpRootNode [2019-11-20 06:31:47,357 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 06:31:47,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 06:31:47,358 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 06:31:47,359 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 06:31:47,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:31:45" (3/4) ... [2019-11-20 06:31:47,364 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 06:31:47,375 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-11-20 06:31:47,376 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-20 06:31:47,378 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-20 06:31:47,449 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_44a1c225-60d9-48ce-8c03-dd8a9f474b95/bin/ukojak/witness.graphml [2019-11-20 06:31:47,449 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 06:31:47,451 INFO L168 Benchmark]: Toolchain (without parser) took 2384.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 950.1 MB in the beginning and 992.0 MB in the end (delta: -42.0 MB). Peak memory consumption was 77.0 MB. Max. memory is 11.5 GB. [2019-11-20 06:31:47,451 INFO L168 Benchmark]: CDTParser took 1.05 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:31:47,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. [2019-11-20 06:31:47,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 06:31:47,453 INFO L168 Benchmark]: Boogie Preprocessor took 37.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. [2019-11-20 06:31:47,454 INFO L168 Benchmark]: RCFGBuilder took 341.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. [2019-11-20 06:31:47,454 INFO L168 Benchmark]: CodeCheck took 1460.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.2 MB in the end (delta: 92.9 MB). Peak memory consumption was 92.9 MB. Max. memory is 11.5 GB. [2019-11-20 06:31:47,455 INFO L168 Benchmark]: Witness Printer took 90.88 ms. Allocated memory is still 1.1 GB. Free memory was 999.2 MB in the beginning and 992.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-11-20 06:31:47,458 INFO L335 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. Result: SAFE, OverallTime: 1.2s, OverallIterations: 8, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 724 SDslu, 530 SDs, 0 SdLazy, 1916 SolverSat, 486 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 336 GetRequests, 303 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 437 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 22]: 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: 20]: Loop Invariant Derived loop invariant: 0 <= x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.05 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 404.75 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.0 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 24.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.6 MB). Peak memory consumption was 3.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 341.42 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 11.5 GB. * CodeCheck took 1460.87 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 999.2 MB in the end (delta: 92.9 MB). Peak memory consumption was 92.9 MB. Max. memory is 11.5 GB. * Witness Printer took 90.88 ms. Allocated memory is still 1.1 GB. Free memory was 999.2 MB in the beginning and 992.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...