./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/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 f39f60c3148e6a8957b92a35d12d506fd8229368 ............................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 02:33:19,822 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 02:33:19,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 02:33:19,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 02:33:19,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 02:33:19,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 02:33:19,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 02:33:19,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 02:33:19,835 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 02:33:19,836 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 02:33:19,837 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 02:33:19,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 02:33:19,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 02:33:19,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 02:33:19,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 02:33:19,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 02:33:19,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 02:33:19,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 02:33:19,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 02:33:19,844 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 02:33:19,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 02:33:19,845 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 02:33:19,846 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 02:33:19,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 02:33:19,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 02:33:19,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 02:33:19,849 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 02:33:19,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 02:33:19,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 02:33:19,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 02:33:19,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 02:33:19,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 02:33:19,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 02:33:19,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 02:33:19,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 02:33:19,852 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 02:33:19,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 02:33:19,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 02:33:19,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 02:33:19,853 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 02:33:19,854 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 02:33:19,854 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-12-01 02:33:19,863 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 02:33:19,863 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 02:33:19,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-01 02:33:19,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-12-01 02:33:19,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 02:33:19,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 02:33:19,864 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-01 02:33:19,865 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 02:33:19,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-01 02:33:19,866 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 02:33:19,866 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 02:33:19,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 02:33:19,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 02:33:19,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 02:33:19,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 02:33:19,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 02:33:19,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-01 02:33:19,867 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 02:33:19,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 02:33:19,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-01 02:33:19,867 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_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/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 -> f39f60c3148e6a8957b92a35d12d506fd8229368 [2019-12-01 02:33:19,982 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 02:33:19,992 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 02:33:19,995 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 02:33:19,996 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 02:33:19,996 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 02:33:19,997 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2019-12-01 02:33:20,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/data/b7c9f5db5/e84a326faca34883a10c7f2e26877df5/FLAGdc28d1ef5 [2019-12-01 02:33:20,485 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 02:33:20,485 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2019-12-01 02:33:20,489 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/data/b7c9f5db5/e84a326faca34883a10c7f2e26877df5/FLAGdc28d1ef5 [2019-12-01 02:33:20,497 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/data/b7c9f5db5/e84a326faca34883a10c7f2e26877df5 [2019-12-01 02:33:20,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 02:33:20,500 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 02:33:20,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 02:33:20,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 02:33:20,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 02:33:20,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c912e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20, skipping insertion in model container [2019-12-01 02:33:20,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 02:33:20,520 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 02:33:20,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 02:33:20,665 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 02:33:20,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 02:33:20,687 INFO L208 MainTranslator]: Completed translation [2019-12-01 02:33:20,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20 WrapperNode [2019-12-01 02:33:20,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 02:33:20,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 02:33:20,688 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 02:33:20,688 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 02:33:20,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,699 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 02:33:20,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 02:33:20,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 02:33:20,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 02:33:20,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 02:33:20,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 02:33:20,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 02:33:20,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 02:33:20,734 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:33:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/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 [2019-12-01 02:33:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 02:33:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2019-12-01 02:33:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2019-12-01 02:33:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 02:33:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 02:33:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 02:33:20,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 02:33:20,971 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 02:33:20,972 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-01 02:33:20,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:33:20 BoogieIcfgContainer [2019-12-01 02:33:20,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 02:33:20,973 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 02:33:20,973 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 02:33:20,980 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 02:33:20,980 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:33:20" (1/1) ... [2019-12-01 02:33:20,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 02:33:21,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 02:33:21,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-12-01 02:33:21,011 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-12-01 02:33:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 02:33:21,012 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 02:33:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 02:33:21,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 02:33:21,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 02:33:21,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2019-12-01 02:33:21,129 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-12-01 02:33:21,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 02:33:21,129 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 02:33:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 02:33:21,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 02:33:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 02:33:21,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2019-12-01 02:33:21,185 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-12-01 02:33:21,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 02:33:21,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 02:33:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 02:33:21,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 02:33:21,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 02:33:21,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2019-12-01 02:33:21,220 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2019-12-01 02:33:21,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-01 02:33:21,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 02:33:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 02:33:21,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 02:33:21,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 02:33:21,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2019-12-01 02:33:21,315 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2019-12-01 02:33:21,315 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-01 02:33:21,315 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2019-12-01 02:33:21,321 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-12-01 02:33:21,338 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-01 02:33:21,341 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-01 02:33:21,342 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-12-01 02:33:21,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 02:33:21 ImpRootNode [2019-12-01 02:33:21,342 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 02:33:21,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 02:33:21,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 02:33:21,342 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 02:33:21,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:33:20" (3/4) ... [2019-12-01 02:33:21,345 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-01 02:33:21,349 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2019-12-01 02:33:21,352 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-12-01 02:33:21,353 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-01 02:33:21,353 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-01 02:33:21,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1f0ccd3a-faa7-4c16-883d-fb80b382e42b/bin/ukojak/witness.graphml [2019-12-01 02:33:21,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 02:33:21,393 INFO L168 Benchmark]: Toolchain (without parser) took 892.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.8 MB in the beginning and 1.0 GB in the end (delta: -62.3 MB). Peak memory consumption was 34.2 MB. Max. memory is 11.5 GB. [2019-12-01 02:33:21,393 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 02:33:21,393 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-12-01 02:33:21,394 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.25 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. [2019-12-01 02:33:21,394 INFO L168 Benchmark]: Boogie Preprocessor took 19.33 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 02:33:21,394 INFO L168 Benchmark]: RCFGBuilder took 239.39 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-01 02:33:21,395 INFO L168 Benchmark]: CodeCheck took 369.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2019-12-01 02:33:21,395 INFO L168 Benchmark]: Witness Printer took 48.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 02:33:21,397 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 2 procedures, 23 locations, 4 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 42 SDslu, 0 SDs, 0 SdLazy, 146 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 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: 17]: 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: 18]: 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: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 960.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.35 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.25 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 19.33 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 239.39 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 369.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * Witness Printer took 48.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...