./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL --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 9ec0bf4392c8fe4647c82e62efb5bebaadd0d7bdbc2edef80a3ce856001f6a7d --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 07:17:04,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 07:17:04,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 07:17:05,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 07:17:05,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 07:17:05,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 07:17:05,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 07:17:05,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 07:17:05,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 07:17:05,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 07:17:05,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 07:17:05,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 07:17:05,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 07:17:05,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 07:17:05,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 07:17:05,029 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 07:17:05,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 07:17:05,032 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 07:17:05,034 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 07:17:05,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 07:17:05,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 07:17:05,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 07:17:05,045 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 07:17:05,046 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 07:17:05,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 07:17:05,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 07:17:05,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 07:17:05,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 07:17:05,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 07:17:05,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 07:17:05,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 07:17:05,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 07:17:05,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 07:17:05,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 07:17:05,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 07:17:05,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 07:17:05,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 07:17:05,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 07:17:05,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 07:17:05,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 07:17:05,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 07:17:05,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-25 07:17:05,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 07:17:05,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 07:17:05,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 07:17:05,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 07:17:05,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 07:17:05,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 07:17:05,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 07:17:05,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 07:17:05,095 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 07:17:05,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 07:17:05,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 07:17:05,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 07:17:05,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 07:17:05,097 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 07:17:05,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 07:17:05,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 07:17:05,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 07:17:05,098 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 07:17:05,098 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 07:17:05,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 07:17:05,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:17:05,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 07:17:05,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 07:17:05,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 07:17:05,099 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 07:17:05,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 07:17:05,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 07:17:05,100 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_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ec0bf4392c8fe4647c82e62efb5bebaadd0d7bdbc2edef80a3ce856001f6a7d [2021-11-25 07:17:05,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 07:17:05,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 07:17:05,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 07:17:05,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 07:17:05,391 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 07:17:05,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2021-11-25 07:17:05,456 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/data/3e34d8264/83e84b38c707453b87e2432960f5e00b/FLAG7a3dafb18 [2021-11-25 07:17:05,979 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 07:17:05,980 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/sv-benchmarks/c/termination-crafted-lit/Ben-Amram-LMCS2010-Ex2.3.c [2021-11-25 07:17:05,986 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/data/3e34d8264/83e84b38c707453b87e2432960f5e00b/FLAG7a3dafb18 [2021-11-25 07:17:06,362 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/data/3e34d8264/83e84b38c707453b87e2432960f5e00b [2021-11-25 07:17:06,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 07:17:06,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 07:17:06,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 07:17:06,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 07:17:06,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 07:17:06,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15046c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06, skipping insertion in model container [2021-11-25 07:17:06,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,392 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 07:17:06,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 07:17:06,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:17:06,596 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 07:17:06,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 07:17:06,622 INFO L208 MainTranslator]: Completed translation [2021-11-25 07:17:06,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06 WrapperNode [2021-11-25 07:17:06,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 07:17:06,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 07:17:06,625 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 07:17:06,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 07:17:06,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,657 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2021-11-25 07:17:06,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 07:17:06,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 07:17:06,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 07:17:06,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 07:17:06,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,669 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,675 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 07:17:06,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 07:17:06,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 07:17:06,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 07:17:06,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:17:06" (1/1) ... [2021-11-25 07:17:06,688 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 07:17:06,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 07:17:06,714 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 07:17:06,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 07:17:06,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 07:17:06,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 07:17:06,841 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 07:17:06,843 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 07:17:07,027 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 07:17:07,060 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 07:17:07,073 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-25 07:17:07,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:17:07 BoogieIcfgContainer [2021-11-25 07:17:07,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 07:17:07,077 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 07:17:07,077 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 07:17:07,089 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 07:17:07,109 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:17:07" (1/1) ... [2021-11-25 07:17:07,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 07:17:07,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:17:07,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2021-11-25 07:17:07,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-11-25 07:17:07,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 07:17:07,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:17:07,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:17:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:17:07,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:17:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:17:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2021-11-25 07:17:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-11-25 07:17:07,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 07:17:07,415 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:17:07,415 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:17:07,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:17:07,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:17:07,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:17:07,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2021-11-25 07:17:07,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-11-25 07:17:07,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 07:17:07,480 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:17:07,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:17:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 07:17:07,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 07:17:07,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 07:17:07,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2021-11-25 07:17:07,634 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2021-11-25 07:17:07,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 07:17:07,635 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 07:17:07,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 07:17:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:17:07,651 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:17:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:17:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:17:07,689 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 07:17:07,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 07:17:07,703 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-11-25 07:17:07,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 07:17:07 ImpRootNode [2021-11-25 07:17:07,730 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 07:17:07,731 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 07:17:07,731 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 07:17:07,732 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 07:17:07,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:17:07" (3/4) ... [2021-11-25 07:17:07,734 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-25 07:17:07,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 07:17:07,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 07:17:07,774 INFO L158 Benchmark]: Toolchain (without parser) took 1407.64ms. Allocated memory is still 98.6MB. Free memory was 59.1MB in the beginning and 42.3MB in the end (delta: 16.8MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-25 07:17:07,775 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 98.6MB. Free memory was 75.7MB in the beginning and 75.7MB in the end (delta: 49.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:17:07,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.79ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 75.0MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-25 07:17:07,776 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.19ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:17:07,777 INFO L158 Benchmark]: Boogie Preprocessor took 19.22ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.7MB in the end (delta: 842.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 07:17:07,778 INFO L158 Benchmark]: RCFGBuilder took 397.98ms. Allocated memory is still 98.6MB. Free memory was 72.7MB in the beginning and 63.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 07:17:07,778 INFO L158 Benchmark]: CodeCheck took 653.31ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 44.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-25 07:17:07,779 INFO L158 Benchmark]: Witness Printer took 41.93ms. Allocated memory is still 98.6MB. Free memory was 43.8MB in the beginning and 42.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 07:17:07,783 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 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 63 IncrementalHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 6 mSDtfsCounter, 63 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: [L15] int x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L20] COND TRUE x > 0 && y > 0 && z > 0 VAL [x=1, y=2, z=1] [L21] COND TRUE y > x [L22] y = z [L23] x = __VERIFIER_nondet_int() [L24] x - 1 VAL [x=-2147483648, y=1, z=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 98.6MB. Free memory was 75.7MB in the beginning and 75.7MB in the end (delta: 49.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 249.79ms. Allocated memory is still 98.6MB. Free memory was 58.9MB in the beginning and 75.0MB in the end (delta: -16.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.19ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 73.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.22ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 72.7MB in the end (delta: 842.7kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.98ms. Allocated memory is still 98.6MB. Free memory was 72.7MB in the beginning and 63.3MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 653.31ms. Allocated memory is still 98.6MB. Free memory was 63.0MB in the beginning and 44.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 41.93ms. Allocated memory is still 98.6MB. Free memory was 43.8MB in the beginning and 42.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-25 07:17:07,841 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b4da5a8e-904f-45c1-8087-89665cda2b72/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)