./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/strchr-2.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_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/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 9856f7645e91c0d9454d45981854535d3bc496b2 ............................................................................................................................................................................................................................................ 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 00:14:31,959 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 00:14:31,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 00:14:31,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 00:14:31,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 00:14:31,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 00:14:31,977 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 00:14:31,986 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 00:14:31,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 00:14:31,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 00:14:31,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 00:14:31,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 00:14:31,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 00:14:31,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 00:14:31,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 00:14:32,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 00:14:32,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 00:14:32,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 00:14:32,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 00:14:32,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 00:14:32,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 00:14:32,015 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 00:14:32,017 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 00:14:32,018 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 00:14:32,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 00:14:32,022 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 00:14:32,022 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 00:14:32,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 00:14:32,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 00:14:32,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 00:14:32,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 00:14:32,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 00:14:32,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 00:14:32,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 00:14:32,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 00:14:32,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 00:14:32,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 00:14:32,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 00:14:32,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 00:14:32,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 00:14:32,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 00:14:32,032 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-20 00:14:32,056 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 00:14:32,058 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 00:14:32,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 00:14:32,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 00:14:32,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 00:14:32,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 00:14:32,062 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 00:14:32,062 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 00:14:32,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 00:14:32,063 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 00:14:32,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 00:14:32,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 00:14:32,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 00:14:32,065 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 00:14:32,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 00:14:32,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 00:14:32,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 00:14:32,066 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 00:14:32,066 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 00:14:32,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 00:14:32,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 00:14:32,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 00:14:32,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 00:14:32,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 00:14:32,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 00:14:32,067 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 00:14:32,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 00:14:32,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 00:14:32,068 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_1bd1ed4d-b74b-416a-a6fe-893cba885861/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 -> 9856f7645e91c0d9454d45981854535d3bc496b2 [2019-11-20 00:14:32,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 00:14:32,209 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 00:14:32,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 00:14:32,213 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 00:14:32,213 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 00:14:32,214 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/strchr-2.c [2019-11-20 00:14:32,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/data/77e517b4a/fcc2c45fa3654f73bbbd1319429da1f1/FLAGe3b1661e2 [2019-11-20 00:14:32,635 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 00:14:32,636 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/sv-benchmarks/c/termination-crafted-lit/strchr-2.c [2019-11-20 00:14:32,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/data/77e517b4a/fcc2c45fa3654f73bbbd1319429da1f1/FLAGe3b1661e2 [2019-11-20 00:14:32,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/data/77e517b4a/fcc2c45fa3654f73bbbd1319429da1f1 [2019-11-20 00:14:32,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 00:14:32,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 00:14:32,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 00:14:32,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 00:14:32,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 00:14:32,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23ae8e33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32, skipping insertion in model container [2019-11-20 00:14:32,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,677 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 00:14:32,693 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 00:14:32,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:14:32,907 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 00:14:32,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 00:14:32,940 INFO L192 MainTranslator]: Completed translation [2019-11-20 00:14:32,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32 WrapperNode [2019-11-20 00:14:32,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 00:14:32,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 00:14:32,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 00:14:32,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 00:14:32,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 00:14:32,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 00:14:32,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 00:14:32,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 00:14:32,981 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,992 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... [2019-11-20 00:14:32,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 00:14:32,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 00:14:32,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 00:14:32,994 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 00:14:32,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:14:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/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 00:14:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-20 00:14:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-20 00:14:33,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 00:14:33,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 00:14:33,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-20 00:14:33,528 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 00:14:33,528 INFO L285 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-20 00:14:33,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:14:33 BoogieIcfgContainer [2019-11-20 00:14:33,529 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 00:14:33,530 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 00:14:33,530 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 00:14:33,539 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 00:14:33,540 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:14:33" (1/1) ... [2019-11-20 00:14:33,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 00:14:33,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 00:14:33,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2019-11-20 00:14:33,576 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-11-20 00:14:33,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-11-20 00:14:33,578 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 00:14:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:33,688 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 00:14:33,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 00:14:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2019-11-20 00:14:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-20 00:14:33,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-20 00:14:33,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 00:14:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:33,755 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 00:14:33,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 00:14:33,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2019-11-20 00:14:33,830 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2019-11-20 00:14:33,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 00:14:33,830 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 00:14:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:33,851 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 00:14:33,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 00:14:33,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2019-11-20 00:14:33,867 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-20 00:14:33,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 00:14:33,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 00:14:33,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 00:14:33,901 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 00:14:34,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 00:14:34,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2019-11-20 00:14:34,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2019-11-20 00:14:34,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 00:14:34,082 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2019-11-20 00:14:34,089 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-11-20 00:14:34,122 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 00:14:34,126 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-11-20 00:14:34,133 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 00:14:34,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 12:14:34 ImpRootNode [2019-11-20 00:14:34,134 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 00:14:34,134 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 00:14:34,134 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 00:14:34,135 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 00:14:34,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:14:33" (3/4) ... [2019-11-20 00:14:34,139 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 00:14:34,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-20 00:14:34,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 00:14:34,154 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 00:14:34,225 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1bd1ed4d-b74b-416a-a6fe-893cba885861/bin/ukojak/witness.graphml [2019-11-20 00:14:34,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 00:14:34,228 INFO L168 Benchmark]: Toolchain (without parser) took 1566.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -104.9 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2019-11-20 00:14:34,228 INFO L168 Benchmark]: CDTParser took 0.23 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 00:14:34,228 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 00:14:34,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:14:34,229 INFO L168 Benchmark]: Boogie Preprocessor took 18.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 00:14:34,230 INFO L168 Benchmark]: RCFGBuilder took 535.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2019-11-20 00:14:34,230 INFO L168 Benchmark]: CodeCheck took 604.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:14:34,231 INFO L168 Benchmark]: Witness Printer took 91.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-20 00:14:34,233 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, 13 locations, 4 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 42 SDslu, 0 SDs, 0 SdLazy, 146 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 92 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: 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: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= length - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 278.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -185.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 535.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * CodeCheck took 604.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 42.9 MB). Peak memory consumption was 42.9 MB. Max. memory is 11.5 GB. * Witness Printer took 91.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...