./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4 --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 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa --- 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-2329fc7 [2022-12-15 01:54:09,711 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 01:54:09,713 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 01:54:09,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 01:54:09,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 01:54:09,733 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 01:54:09,734 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 01:54:09,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 01:54:09,737 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 01:54:09,738 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 01:54:09,739 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 01:54:09,740 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 01:54:09,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 01:54:09,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 01:54:09,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 01:54:09,744 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 01:54:09,745 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 01:54:09,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 01:54:09,747 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 01:54:09,749 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 01:54:09,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 01:54:09,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 01:54:09,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 01:54:09,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 01:54:09,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 01:54:09,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 01:54:09,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 01:54:09,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 01:54:09,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 01:54:09,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 01:54:09,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 01:54:09,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 01:54:09,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 01:54:09,763 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 01:54:09,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 01:54:09,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 01:54:09,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 01:54:09,765 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 01:54:09,765 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 01:54:09,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 01:54:09,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 01:54:09,768 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 01:54:09,788 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 01:54:09,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 01:54:09,789 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 01:54:09,790 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 01:54:09,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 01:54:09,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 01:54:09,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 01:54:09,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 01:54:09,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 01:54:09,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 01:54:09,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 01:54:09,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 01:54:09,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 01:54:09,792 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 01:54:09,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 01:54:09,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 01:54:09,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 01:54:09,793 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 01:54:09,793 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 01:54:09,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 01:54:09,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:54:09,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 01:54:09,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 01:54:09,794 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 01:54:09,794 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 01:54:09,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 01:54:09,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 01:54:09,795 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_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa [2022-12-15 01:54:09,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 01:54:10,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 01:54:10,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 01:54:10,007 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 01:54:10,008 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 01:54:10,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-12-15 01:54:12,623 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 01:54:12,766 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 01:54:12,766 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-12-15 01:54:12,773 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/data/fe932c67f/d9bcbc7596e94548b0f408e52d307833/FLAG0830bb57c [2022-12-15 01:54:12,787 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/data/fe932c67f/d9bcbc7596e94548b0f408e52d307833 [2022-12-15 01:54:12,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 01:54:12,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 01:54:12,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 01:54:12,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 01:54:12,796 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 01:54:12,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:12" (1/1) ... [2022-12-15 01:54:12,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@474a5d86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:12, skipping insertion in model container [2022-12-15 01:54:12,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 01:54:12" (1/1) ... [2022-12-15 01:54:12,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 01:54:12,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 01:54:13,044 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:54:13,053 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 01:54:13,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 01:54:13,105 INFO L208 MainTranslator]: Completed translation [2022-12-15 01:54:13,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13 WrapperNode [2022-12-15 01:54:13,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 01:54:13,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 01:54:13,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 01:54:13,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 01:54:13,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,139 INFO L138 Inliner]: procedures = 110, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2022-12-15 01:54:13,140 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 01:54:13,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 01:54:13,141 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 01:54:13,141 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 01:54:13,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,151 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,155 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,159 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 01:54:13,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 01:54:13,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 01:54:13,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 01:54:13,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 01:54:13,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 01:54:13,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 01:54:13,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 01:54:13,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 01:54:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 01:54:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 01:54:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 01:54:13,228 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 01:54:13,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 01:54:13,317 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 01:54:13,319 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 01:54:13,453 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 01:54:13,491 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 01:54:13,492 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 01:54:13,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:54:13 BoogieIcfgContainer [2022-12-15 01:54:13,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 01:54:13,502 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 01:54:13,502 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 01:54:13,513 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 01:54:13,513 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:54:13" (1/1) ... [2022-12-15 01:54:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 01:54:13,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:54:13,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-12-15 01:54:13,569 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-15 01:54:13,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 01:54:13,571 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:54:13,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:54:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 01:54:13,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 01:54:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 01:54:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2022-12-15 01:54:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-12-15 01:54:14,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 01:54:14,022 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 01:54:14,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 01:54:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:54:14,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 01:54:14,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:54:14,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:54:14,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-15 01:54:14,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-15 01:54:14,160 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2022-12-15 01:54:14,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 01:54:14 ImpRootNode [2022-12-15 01:54:14,185 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 01:54:14,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 01:54:14,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 01:54:14,186 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 01:54:14,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 01:54:13" (3/4) ... [2022-12-15 01:54:14,189 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-15 01:54:14,223 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 01:54:14,223 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 01:54:14,224 INFO L158 Benchmark]: Toolchain (without parser) took 1433.17ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 74.5MB in the beginning and 61.3MB in the end (delta: 13.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-12-15 01:54:14,225 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:54:14,225 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.34ms. Allocated memory is still 115.3MB. Free memory was 74.0MB in the beginning and 58.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-15 01:54:14,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.70ms. Allocated memory is still 115.3MB. Free memory was 58.4MB in the beginning and 56.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:54:14,226 INFO L158 Benchmark]: Boogie Preprocessor took 22.30ms. Allocated memory is still 115.3MB. Free memory was 56.8MB in the beginning and 55.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 01:54:14,227 INFO L158 Benchmark]: RCFGBuilder took 338.21ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 55.6MB in the beginning and 110.6MB in the end (delta: -55.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2022-12-15 01:54:14,227 INFO L158 Benchmark]: CodeCheck took 683.19ms. Allocated memory is still 138.4MB. Free memory was 110.5MB in the beginning and 62.5MB in the end (delta: 48.0MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2022-12-15 01:54:14,228 INFO L158 Benchmark]: Witness Printer took 37.41ms. Allocated memory is still 138.4MB. Free memory was 62.5MB in the beginning and 61.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 01:54:14,231 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, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 21 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 558]: integer overflow possible integer overflow possible We found a FailurePath: [L548] int *x = __builtin_alloca (sizeof(int)); [L549] int *y = __builtin_alloca (sizeof(int)); [L550] int *z = __builtin_alloca (sizeof(int)); [L551] *x = __VERIFIER_nondet_int() [L552] *y = __VERIFIER_nondet_int() [L553] *z = __VERIFIER_nondet_int() [L554] EXPR \read(*x) [L554] EXPR *x > 0 && *y > 0 [L554] EXPR \read(*y) [L554] EXPR *x > 0 && *y > 0 [L554] *x > 0 && *y > 0 && *z > 0 [L554] EXPR \read(*z) [L554] *x > 0 && *y > 0 && *z > 0 VAL [*x > 0 && *y > 0=1, *x > 0 && *y > 0 && *z > 0=1, \read(*x)=20977, \read(*y)=20978, \read(*z)=14681, __builtin_alloca (sizeof(int))={3001:0}, __builtin_alloca (sizeof(int))={3000:0}, __builtin_alloca (sizeof(int))={2999:0}, x={3000:0}, y={2999:0}, z={3001:0}] [L554] COND TRUE *x > 0 && *y > 0 && *z > 0 [L555] EXPR \read(*y) [L555] EXPR \read(*x) VAL [\read(*x)=20977, \read(*y)=20978, __builtin_alloca (sizeof(int))={3001:0}, __builtin_alloca (sizeof(int))={3000:0}, __builtin_alloca (sizeof(int))={2999:0}, x={3000:0}, y={2999:0}, z={3001:0}] [L555] COND TRUE *y > *x [L556] EXPR \read(*z) [L556] *y = *z [L557] *x = __VERIFIER_nondet_int() [L558] EXPR \read(*x) VAL [\read(*x)=-2147483648, __builtin_alloca (sizeof(int))={3001:0}, __builtin_alloca (sizeof(int))={3000:0}, __builtin_alloca (sizeof(int))={2999:0}, x={3000:0}, y={2999:0}, z={3001:0}] [L558] *x - 1 VAL [\read(*x)=-2147483648, __builtin_alloca (sizeof(int))={3001:0}, __builtin_alloca (sizeof(int))={3000:0}, __builtin_alloca (sizeof(int))={2999:0}, x={3000:0}, y={2999:0}, z={3001:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 115.3MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.34ms. Allocated memory is still 115.3MB. Free memory was 74.0MB in the beginning and 58.9MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.70ms. Allocated memory is still 115.3MB. Free memory was 58.4MB in the beginning and 56.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.30ms. Allocated memory is still 115.3MB. Free memory was 56.8MB in the beginning and 55.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 338.21ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 55.6MB in the beginning and 110.6MB in the end (delta: -55.0MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * CodeCheck took 683.19ms. Allocated memory is still 138.4MB. Free memory was 110.5MB in the beginning and 62.5MB in the end (delta: 48.0MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. * Witness Printer took 37.41ms. Allocated memory is still 138.4MB. Free memory was 62.5MB in the beginning and 61.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-12-15 01:54:14,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c20707f-8552-461c-8af6-a1ec8891f24a/bin/ukojak-rkRKPMF4O4/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)