./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/gcd1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/gcd1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/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 bdfef58fa4fb3de1b318ab5efff1c275e7824970 ..................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 03:01:05,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 03:01:05,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 03:01:05,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 03:01:05,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 03:01:05,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 03:01:05,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 03:01:05,342 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 03:01:05,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 03:01:05,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 03:01:05,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 03:01:05,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 03:01:05,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 03:01:05,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 03:01:05,356 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 03:01:05,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 03:01:05,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 03:01:05,358 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 03:01:05,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 03:01:05,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 03:01:05,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 03:01:05,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 03:01:05,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 03:01:05,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 03:01:05,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 03:01:05,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 03:01:05,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 03:01:05,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 03:01:05,379 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 03:01:05,380 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 03:01:05,380 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 03:01:05,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 03:01:05,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 03:01:05,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 03:01:05,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 03:01:05,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 03:01:05,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 03:01:05,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 03:01:05,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 03:01:05,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 03:01:05,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 03:01:05,387 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-11-26 03:01:05,414 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 03:01:05,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 03:01:05,425 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 03:01:05,425 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-26 03:01:05,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 03:01:05,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 03:01:05,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 03:01:05,426 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 03:01:05,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 03:01:05,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 03:01:05,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 03:01:05,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 03:01:05,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 03:01:05,427 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-26 03:01:05,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 03:01:05,427 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 03:01:05,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 03:01:05,428 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-26 03:01:05,428 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-26 03:01:05,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 03:01:05,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 03:01:05,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-26 03:01:05,429 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 03:01:05,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 03:01:05,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 03:01:05,430 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-26 03:01:05,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 03:01:05,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 03:01:05,430 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_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/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 -> bdfef58fa4fb3de1b318ab5efff1c275e7824970 [2019-11-26 03:01:05,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 03:01:05,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 03:01:05,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 03:01:05,601 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 03:01:05,601 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 03:01:05,602 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/gcd1.c [2019-11-26 03:01:05,657 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/data/37c700d40/85964693d7664db6aec0594a44ef8c21/FLAG7c7cfe228 [2019-11-26 03:01:06,088 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 03:01:06,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/sv-benchmarks/c/termination-crafted-lit/gcd1.c [2019-11-26 03:01:06,094 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/data/37c700d40/85964693d7664db6aec0594a44ef8c21/FLAG7c7cfe228 [2019-11-26 03:01:06,458 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/data/37c700d40/85964693d7664db6aec0594a44ef8c21 [2019-11-26 03:01:06,461 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 03:01:06,462 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 03:01:06,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:06,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 03:01:06,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 03:01:06,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567868d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06, skipping insertion in model container [2019-11-26 03:01:06,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 03:01:06,493 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 03:01:06,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:06,683 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 03:01:06,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 03:01:06,781 INFO L205 MainTranslator]: Completed translation [2019-11-26 03:01:06,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06 WrapperNode [2019-11-26 03:01:06,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 03:01:06,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:06,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 03:01:06,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 03:01:06,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,812 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 03:01:06,813 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 03:01:06,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 03:01:06,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 03:01:06,823 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,831 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... [2019-11-26 03:01:06,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 03:01:06,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 03:01:06,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 03:01:06,834 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 03:01:06,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 03:01:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/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 [2019-11-26 03:01:06,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 03:01:06,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 03:01:07,063 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 03:01:07,063 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-26 03:01:07,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:07 BoogieIcfgContainer [2019-11-26 03:01:07,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 03:01:07,065 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-26 03:01:07,065 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-26 03:01:07,075 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-26 03:01:07,075 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:07" (1/1) ... [2019-11-26 03:01:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 03:01:07,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-26 03:01:07,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2019-11-26 03:01:07,114 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-11-26 03:01:07,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-11-26 03:01:07,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-26 03:01:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:07,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-26 03:01:07,237 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2019-11-26 03:01:07,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 26.11 03:01:07 ImpRootNode [2019-11-26 03:01:07,254 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-26 03:01:07,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 03:01:07,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 03:01:07,255 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 03:01:07,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 03:01:07" (3/4) ... [2019-11-26 03:01:07,257 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-26 03:01:07,293 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1ad3fc81-b3dd-427e-9f2b-9a93fda6d1d3/bin/ukojak/witness.graphml [2019-11-26 03:01:07,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 03:01:07,295 INFO L168 Benchmark]: Toolchain (without parser) took 832.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:07,296 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 03:01:07,297 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:07,298 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.93 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. [2019-11-26 03:01:07,299 INFO L168 Benchmark]: Boogie Preprocessor took 20.19 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:07,300 INFO L168 Benchmark]: RCFGBuilder took 231.16 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:07,301 INFO L168 Benchmark]: CodeCheck took 189.58 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:07,302 INFO L168 Benchmark]: Witness Printer took 38.60 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 03:01:07,305 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, 18 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - CounterExampleResult [Line: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int r, x, y; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L20] COND TRUE x<0 [L20] -x * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 319.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.93 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 20.19 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 231.16 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: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * CodeCheck took 189.58 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.60 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...