./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB --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 b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:43:44,539 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:43:44,542 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:43:44,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:43:44,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:43:44,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:43:44,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:43:44,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:43:44,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:43:44,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:43:44,619 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:43:44,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:43:44,622 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:43:44,625 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:43:44,627 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:43:44,629 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:43:44,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:43:44,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:43:44,635 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:43:44,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:43:44,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:43:44,646 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:43:44,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:43:44,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:43:44,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:43:44,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:43:44,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:43:44,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:43:44,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:43:44,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:43:44,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:43:44,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:43:44,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:43:44,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:43:44,681 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:43:44,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:43:44,682 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:43:44,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:43:44,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:43:44,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:43:44,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:43:44,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-10-17 16:43:44,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:43:44,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:43:44,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:43:44,748 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:43:44,748 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:43:44,749 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:43:44,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:43:44,749 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 16:43:44,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:43:44,750 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:43:44,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:43:44,751 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:43:44,751 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:43:44,752 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-17 16:43:44,752 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:43:44,752 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:43:44,752 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:43:44,753 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:43:44,753 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:43:44,753 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:43:44,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:43:44,754 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:43:44,754 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:43:44,754 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:43:44,754 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:43:44,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:43:44,755 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:43:44,755 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_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7646a22882710466ec3244f9455a19a1dbe784d959581f36adf578939304de7 [2022-10-17 16:43:45,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:43:45,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:43:45,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:43:45,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:43:45,082 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:43:45,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2022-10-17 16:43:45,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/data/cfab1e7a7/38125deb15364a70b28e846681c2fb79/FLAG326fde315 [2022-10-17 16:43:45,648 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:43:45,648 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2022-10-17 16:43:45,653 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/data/cfab1e7a7/38125deb15364a70b28e846681c2fb79/FLAG326fde315 [2022-10-17 16:43:46,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/data/cfab1e7a7/38125deb15364a70b28e846681c2fb79 [2022-10-17 16:43:46,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:43:46,035 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:43:46,039 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:43:46,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:43:46,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:43:46,044 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@295b7b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46, skipping insertion in model container [2022-10-17 16:43:46,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:43:46,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:43:46,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:43:46,208 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:43:46,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:43:46,236 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:43:46,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46 WrapperNode [2022-10-17 16:43:46,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:43:46,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:43:46,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:43:46,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:43:46,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,269 INFO L138 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 17 [2022-10-17 16:43:46,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:43:46,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:43:46,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:43:46,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:43:46,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:43:46,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:43:46,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:43:46,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:43:46,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:43:46,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:43:46,328 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:43:46,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:43:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:43:46,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:43:46,372 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2022-10-17 16:43:46,372 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2022-10-17 16:43:46,426 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:43:46,428 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:43:46,556 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:43:46,574 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:43:46,574 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:43:46,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:46 BoogieIcfgContainer [2022-10-17 16:43:46,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:43:46,578 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:43:46,578 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:43:46,590 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:43:46,590 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:46" (1/1) ... [2022-10-17 16:43:46,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:43:46,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 24 states and 26 transitions. [2022-10-17 16:43:46,663 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-10-17 16:43:46,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 16:43:46,669 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:46,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:46,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:46,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:43:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 27 states and 30 transitions. [2022-10-17 16:43:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-10-17 16:43:46,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:43:46,998 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:46,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:47,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:43:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:43:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:43:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 35 transitions. [2022-10-17 16:43:47,385 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2022-10-17 16:43:47,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 16:43:47,385 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:43:47,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:43:47,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:47,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:43:47,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:47,434 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 16:43:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 16:43:47,445 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2022-10-17 16:43:47,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:43:47 ImpRootNode [2022-10-17 16:43:47,476 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:43:47,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:43:47,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:43:47,478 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:43:47,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:43:46" (3/4) ... [2022-10-17 16:43:47,480 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 16:43:47,528 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:43:47,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:43:47,529 INFO L158 Benchmark]: Toolchain (without parser) took 1493.70ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 45.5MB in the end (delta: 55.2MB). Peak memory consumption was 54.5MB. Max. memory is 16.1GB. [2022-10-17 16:43:47,530 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory was 60.1MB in the beginning and 60.1MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:43:47,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.06ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 91.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 16:43:47,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.21ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 90.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:43:47,535 INFO L158 Benchmark]: Boogie Preprocessor took 20.86ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 89.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:43:47,538 INFO L158 Benchmark]: RCFGBuilder took 284.79ms. Allocated memory is still 125.8MB. Free memory was 89.7MB in the beginning and 79.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:43:47,539 INFO L158 Benchmark]: CodeCheck took 898.01ms. Allocated memory is still 125.8MB. Free memory was 79.0MB in the beginning and 47.2MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-10-17 16:43:47,539 INFO L158 Benchmark]: Witness Printer took 51.17ms. Allocated memory is still 125.8MB. Free memory was 46.9MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:43:47,544 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 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 10 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 31 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L28] CALL rev(ls) [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory was 60.1MB in the beginning and 60.1MB in the end (delta: 40.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.06ms. Allocated memory is still 125.8MB. Free memory was 100.6MB in the beginning and 91.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.21ms. Allocated memory is still 125.8MB. Free memory was 91.9MB in the beginning and 90.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.86ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 89.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.79ms. Allocated memory is still 125.8MB. Free memory was 89.7MB in the beginning and 79.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 898.01ms. Allocated memory is still 125.8MB. Free memory was 79.0MB in the beginning and 47.2MB in the end (delta: 31.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 51.17ms. Allocated memory is still 125.8MB. Free memory was 46.9MB in the beginning and 45.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-10-17 16:43:47,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_139f51e3-94ba-4a4c-84c8-4d1e06d9637a/bin/ukojak-92XMlrwhuB/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)