./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.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_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c -s /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/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 b51d3ff9a76866bd9c6637bca261a8433dd4524e ................................................................................................................................................................................................................................................ 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-cad4683 [2019-10-22 10:12:13,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:12:13,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:12:13,976 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:12:13,976 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:12:13,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:12:13,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:12:13,979 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:12:13,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:12:13,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:12:13,981 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:12:13,982 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:12:13,982 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:12:13,983 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:12:13,984 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:12:13,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:12:13,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:12:13,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:12:13,987 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:12:13,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:12:13,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:12:13,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:12:13,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:12:13,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:12:13,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:12:13,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:12:13,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:12:13,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:12:13,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:12:13,995 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:12:13,995 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:12:13,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:12:13,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:12:13,996 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:12:13,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:12:13,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:12:13,998 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:12:13,998 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:12:13,998 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:12:13,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:12:13,999 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:12:14,000 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2019-10-22 10:12:14,009 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:12:14,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:12:14,010 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:12:14,010 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:12:14,011 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:12:14,011 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:12:14,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:12:14,011 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:12:14,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:12:14,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:12:14,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:12:14,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:12:14,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:12:14,012 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:12:14,012 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:12:14,013 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:12:14,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:12:14,013 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:12:14,013 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:12:14,013 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:12:14,013 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:12:14,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:12:14,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:12:14,014 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:12:14,014 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:12:14,014 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:12:14,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:12:14,015 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:12:14,015 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_02c98886-6920-4cda-9272-1ab537179926/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 -> b51d3ff9a76866bd9c6637bca261a8433dd4524e [2019-10-22 10:12:14,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:12:14,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:12:14,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:12:14,065 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:12:14,065 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:12:14,066 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2019-10-22 10:12:14,116 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/data/06b976369/f7ef991d39ce490a9bb08f9b4af3251b/FLAG1fbded487 [2019-10-22 10:12:14,499 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:12:14,500 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-counterex1b.c [2019-10-22 10:12:14,505 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/data/06b976369/f7ef991d39ce490a9bb08f9b4af3251b/FLAG1fbded487 [2019-10-22 10:12:14,516 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/data/06b976369/f7ef991d39ce490a9bb08f9b4af3251b [2019-10-22 10:12:14,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:12:14,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:12:14,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:14,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:12:14,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:12:14,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5408eeba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14, skipping insertion in model container [2019-10-22 10:12:14,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,536 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:12:14,552 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:12:14,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:14,717 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:12:14,789 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:14,802 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:12:14,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14 WrapperNode [2019-10-22 10:12:14,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:14,803 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:14,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:12:14,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:12:14,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,818 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:14,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:12:14,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:12:14,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:12:14,841 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,841 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... [2019-10-22 10:12:14,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:12:14,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:12:14,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:12:14,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:12:14,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/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 10:12:14,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:12:14,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:12:15,095 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:12:15,096 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 10:12:15,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:15 BoogieIcfgContainer [2019-10-22 10:12:15,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:12:15,097 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:12:15,097 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:12:15,108 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:12:15,108 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:15" (1/1) ... [2019-10-22 10:12:15,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:12:15,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2019-10-22 10:12:15,150 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2019-10-22 10:12:15,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:12:15,153 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,251 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 10:12:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2019-10-22 10:12:15,259 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-22 10:12:15,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:12:15,259 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,321 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 10:12:15,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-10-22 10:12:15,388 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-10-22 10:12:15,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:12:15,389 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,427 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 10:12:15,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2019-10-22 10:12:15,530 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2019-10-22 10:12:15,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:12:15,533 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,561 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 10:12:15,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 31 states and 44 transitions. [2019-10-22 10:12:15,683 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2019-10-22 10:12:15,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:12:15,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,727 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 10:12:15,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2019-10-22 10:12:15,937 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2019-10-22 10:12:15,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:12:15,937 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:15,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:16,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:16,019 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2019-10-22 10:12:16,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:12:16 ImpRootNode [2019-10-22 10:12:16,040 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:12:16,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:12:16,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:12:16,040 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:12:16,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:15" (3/4) ... [2019-10-22 10:12:16,043 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:12:16,081 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_02c98886-6920-4cda-9272-1ab537179926/bin/ukojak/witness.graphml [2019-10-22 10:12:16,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:12:16,083 INFO L168 Benchmark]: Toolchain (without parser) took 1562.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.9 MB in the beginning and 1.0 GB in the end (delta: -69.2 MB). Peak memory consumption was 69.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,083 INFO L168 Benchmark]: CDTParser took 0.47 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 10:12:16,084 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.69 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 10:12:16,085 INFO L168 Benchmark]: Boogie Preprocessor took 16.54 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,085 INFO L168 Benchmark]: RCFGBuilder took 246.80 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: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,086 INFO L168 Benchmark]: CodeCheck took 942.35 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: 84.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,090 INFO L168 Benchmark]: Witness Printer took 41.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,093 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, 19 locations, 6 error locations. Result: UNSAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 256 SDtfs, 178 SDslu, 232 SDs, 0 SdLazy, 370 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 220 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 240 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 24]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x, y, n; [L15] n = __VERIFIER_nondet_int() [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] COND TRUE x >= 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] y >= 0 && __VERIFIER_nondet_int() != 0 [L19] COND FALSE !(y >= 0 && __VERIFIER_nondet_int() != 0) [L22] EXPR x - 1 [L22] x = x - 1 [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] y <= n && __VERIFIER_nondet_int() != 0 [L23] COND TRUE y <= n && __VERIFIER_nondet_int() != 0 [L24] y + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 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 282.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -187.0 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.69 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 16.54 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 246.80 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: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * CodeCheck took 942.35 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: 84.1 MB). Peak memory consumption was 84.1 MB. Max. memory is 11.5 GB. * Witness Printer took 41.04 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...