./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Et1_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-numeric/Et1_true.c -s /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/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 a85cb3758c5d85c22315af1db9b335f6cd7964ef ...................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-29 21:33:21,034 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:33:21,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:33:21,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:33:21,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:33:21,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:33:21,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:33:21,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:33:21,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:33:21,116 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:33:21,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:33:21,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:33:21,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:33:21,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:33:21,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:33:21,123 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:33:21,125 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:33:21,126 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:33:21,128 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:33:21,130 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:33:21,132 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:33:21,134 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:33:21,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:33:21,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:33:21,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:33:21,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:33:21,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:33:21,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:33:21,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:33:21,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:33:21,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:33:21,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:33:21,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:33:21,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:33:21,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:33:21,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:33:21,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:33:21,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:33:21,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:33:21,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:33:21,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:33:21,161 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-29 21:33:21,184 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:33:21,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:33:21,185 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 21:33:21,185 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 21:33:21,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:33:21,186 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:33:21,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:33:21,187 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:33:21,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:33:21,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:33:21,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:33:21,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:33:21,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:33:21,188 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 21:33:21,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:33:21,188 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:33:21,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:33:21,189 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 21:33:21,189 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 21:33:21,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:33:21,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:33:21,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 21:33:21,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:33:21,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:33:21,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:33:21,190 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 21:33:21,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:33:21,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:33:21,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a85cb3758c5d85c22315af1db9b335f6cd7964ef [2020-11-29 21:33:21,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:33:21,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:33:21,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:33:21,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:33:21,456 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:33:21,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/../../sv-benchmarks/c/termination-numeric/Et1_true.c [2020-11-29 21:33:21,544 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/data/dfb9eaf57/5a5cdb40a6884722a42f406a6793f837/FLAG8abce2bfc [2020-11-29 21:33:21,983 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:33:21,983 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/sv-benchmarks/c/termination-numeric/Et1_true.c [2020-11-29 21:33:21,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/data/dfb9eaf57/5a5cdb40a6884722a42f406a6793f837/FLAG8abce2bfc [2020-11-29 21:33:22,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/data/dfb9eaf57/5a5cdb40a6884722a42f406a6793f837 [2020-11-29 21:33:22,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:33:22,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:33:22,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:33:22,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:33:22,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:33:22,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,389 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7800a513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22, skipping insertion in model container [2020-11-29 21:33:22,389 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,396 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:33:22,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:33:22,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:33:22,552 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:33:22,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:33:22,598 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:33:22,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22 WrapperNode [2020-11-29 21:33:22,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:33:22,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:33:22,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:33:22,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:33:22,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:33:22,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:33:22,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:33:22,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:33:22,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,655 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... [2020-11-29 21:33:22,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:33:22,657 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:33:22,657 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:33:22,657 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:33:22,658 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/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 [2020-11-29 21:33:22,713 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-11-29 21:33:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure random [2020-11-29 21:33:22,714 INFO L130 BoogieDeclarations]: Found specification of procedure loop [2020-11-29 21:33:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure loop [2020-11-29 21:33:22,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:33:22,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:33:23,031 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:33:23,031 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-29 21:33:23,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:23 BoogieIcfgContainer [2020-11-29 21:33:23,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:33:23,034 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 21:33:23,034 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 21:33:23,042 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 21:33:23,042 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:23" (1/1) ... [2020-11-29 21:33:23,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:33:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:33:23,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 37 states and 40 transitions. [2020-11-29 21:33:23,082 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2020-11-29 21:33:23,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 21:33:23,083 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:33:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:23,141 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:23,151 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:23,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:23,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:23,203 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:23,210 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-29 21:33:23,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 09:33:23 ImpRootNode [2020-11-29 21:33:23,237 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 21:33:23,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:33:23,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:33:23,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:33:23,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:23" (3/4) ... [2020-11-29 21:33:23,242 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:33:23,295 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_215c6c97-c93f-45eb-82f7-f3ed63efe742/bin/ukojak/witness.graphml [2020-11-29 21:33:23,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:33:23,297 INFO L168 Benchmark]: Toolchain (without parser) took 917.75 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 54.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,303 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:23,303 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.67 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 81.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,304 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.56 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 79.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:23,305 INFO L168 Benchmark]: Boogie Preprocessor took 14.35 ms. Allocated memory is still 102.8 MB. Free memory was 79.8 MB in the beginning and 79.0 MB in the end (delta: 839.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:23,305 INFO L168 Benchmark]: RCFGBuilder took 376.38 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 66.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,306 INFO L168 Benchmark]: CodeCheck took 202.59 ms. Allocated memory is still 102.8 MB. Free memory was 66.3 MB in the beginning and 56.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,309 INFO L168 Benchmark]: Witness Printer took 55.67 ms. Allocated memory is still 102.8 MB. Free memory was 56.2 MB in the beginning and 54.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 37 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 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, 5 NumberOfCodeBlocks, 5 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: 31]: integer overflow possible integer overflow possible We found a FailurePath: [L21] int x = __VERIFIER_nondet_int(); [L22] int y = __VERIFIER_nondet_int(); [L23] int z = __VERIFIER_nondet_int(); [L24] CALL random() [L29] int x = __VERIFIER_nondet_int(); [L30] COND TRUE x < 0 VAL [x=-2147483648] [L31] -x VAL [x=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 62.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 216.67 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 81.1 MB in the end (delta: -6.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.56 ms. Allocated memory is still 102.8 MB. Free memory was 81.1 MB in the beginning and 79.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.35 ms. Allocated memory is still 102.8 MB. Free memory was 79.8 MB in the beginning and 79.0 MB in the end (delta: 839.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 376.38 ms. Allocated memory is still 102.8 MB. Free memory was 79.0 MB in the beginning and 66.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 202.59 ms. Allocated memory is still 102.8 MB. Free memory was 66.3 MB in the beginning and 56.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 55.67 ms. Allocated memory is still 102.8 MB. Free memory was 56.2 MB in the beginning and 54.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...