./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Piecewise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Piecewise.c -s /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 36155f521cfe170e9c03fd915618e68821fe0430 .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:16:58,116 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:58,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:58,125 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:58,125 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:58,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:58,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:58,129 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:58,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:58,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:58,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:58,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:58,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:58,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:58,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:58,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:58,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:58,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:58,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:58,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:58,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:58,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:58,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:58,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:58,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:58,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:58,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:58,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:58,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:58,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:58,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:58,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:58,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:58,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:58,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:58,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:58,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:58,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:58,151 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:58,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:58,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:58,155 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:16:58,165 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:58,165 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:58,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:16:58,166 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:16:58,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:58,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:58,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:58,171 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:16:58,171 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:58,171 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:58,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:16:58,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:58,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:16:58,172 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:16:58,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:16:58,172 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:58,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:16:58,173 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:58,173 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:58,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:58,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:58,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:58,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:58,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:58,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:16:58,174 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:58,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:58,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:16:58,175 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/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36155f521cfe170e9c03fd915618e68821fe0430 [2019-10-22 10:16:58,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:58,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:58,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:58,210 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:58,210 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:58,211 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Piecewise.c [2019-10-22 10:16:58,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/data/e34b9dc4e/348d85f55a1949c7a86d925ad56c67fb/FLAG03bf66dda [2019-10-22 10:16:58,591 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:58,591 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/sv-benchmarks/c/termination-crafted/Piecewise.c [2019-10-22 10:16:58,596 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/data/e34b9dc4e/348d85f55a1949c7a86d925ad56c67fb/FLAG03bf66dda [2019-10-22 10:16:58,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/data/e34b9dc4e/348d85f55a1949c7a86d925ad56c67fb [2019-10-22 10:16:58,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:58,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:58,612 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:58,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:58,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:58,615 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5390f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58, skipping insertion in model container [2019-10-22 10:16:58,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,624 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:58,637 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:58,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:58,757 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:58,822 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:58,835 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:58,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58 WrapperNode [2019-10-22 10:16:58,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:58,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:58,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:58,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:58,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:58,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:58,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:58,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:58,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,885 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... [2019-10-22 10:16:58,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:58,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:58,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:58,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:58,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/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 [2019-10-22 10:16:58,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:58,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:59,160 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:59,161 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 10:16:59,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:59 BoogieIcfgContainer [2019-10-22 10:16:59,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:59,162 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:59,162 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:59,172 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:59,173 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:59" (1/1) ... [2019-10-22 10:16:59,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:59,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2019-10-22 10:16:59,214 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-10-22 10:16:59,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:59,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:59,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:59,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:59,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2019-10-22 10:16:59,468 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2019-10-22 10:16:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:59,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:59,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:59,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:59,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2019-10-22 10:16:59,597 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2019-10-22 10:16:59,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:59,597 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:59,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:59,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2019-10-22 10:16:59,746 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-10-22 10:16:59,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:16:59,746 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:59,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:59,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2019-10-22 10:16:59,935 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2019-10-22 10:16:59,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:16:59,938 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:59,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:17:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:00,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2019-10-22 10:17:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2019-10-22 10:17:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:17:00,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:17:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:17:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 10:17:00,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:17:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2019-10-22 10:17:00,164 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2019-10-22 10:17:00,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:17:00,164 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2019-10-22 10:17:00,173 INFO L771 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-10-22 10:17:00,227 INFO L575 CodeCheckObserver]: Invariant with dag size 3 [2019-10-22 10:17:00,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:17:00 ImpRootNode [2019-10-22 10:17:00,237 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:17:00,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:17:00,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:17:00,238 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:17:00,238 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:59" (3/4) ... [2019-10-22 10:17:00,242 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:17:00,253 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:17:00,253 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 10:17:00,253 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:17:00,304 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_69c9df76-b14f-42c3-8344-e8af4999571a/bin/ukojak/witness.graphml [2019-10-22 10:17:00,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:17:00,306 INFO L168 Benchmark]: Toolchain (without parser) took 1694.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 996.3 MB in the end (delta: -50.6 MB). Peak memory consumption was 83.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:00,309 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:17:00,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 223.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:00,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.76 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. [2019-10-22 10:17:00,310 INFO L168 Benchmark]: Boogie Preprocessor took 31.22 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. [2019-10-22 10:17:00,310 INFO L168 Benchmark]: RCFGBuilder took 264.52 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:00,311 INFO L168 Benchmark]: CodeCheck took 1075.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:00,315 INFO L168 Benchmark]: Witness Printer took 66.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:17:00,317 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: 0.9s, OverallIterations: 7, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 496 SDslu, 0 SDs, 0 SdLazy, 2070 SolverSat, 358 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 350 GetRequests, 313 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 420 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: q <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 223.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -185.4 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.76 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 31.22 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 264.52 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: 19.7 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * CodeCheck took 1075.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 109.7 MB). Peak memory consumption was 109.7 MB. Max. memory is 11.5 GB. * Witness Printer took 66.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 996.3 MB 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...