./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 6b4ec56b 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_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/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_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ --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-6b4ec56 [2022-11-20 18:18:44,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:18:44,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:18:44,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:18:44,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:18:44,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:18:44,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:18:44,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:18:44,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:18:44,202 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:18:44,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:18:44,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:18:44,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:18:44,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:18:44,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:18:44,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:18:44,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:18:44,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:18:44,221 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:18:44,228 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:18:44,230 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:18:44,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:18:44,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:18:44,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:18:44,246 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:18:44,246 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:18:44,247 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:18:44,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:18:44,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:18:44,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:18:44,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:18:44,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:18:44,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:18:44,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:18:44,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:18:44,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:18:44,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:18:44,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:18:44,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:18:44,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:18:44,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:18:44,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 18:18:44,302 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:18:44,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:18:44,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 18:18:44,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 18:18:44,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:18:44,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:18:44,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:18:44,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:18:44,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:18:44,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:18:44,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 18:18:44,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:18:44,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 18:18:44,309 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 18:18:44,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 18:18:44,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:18:44,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 18:18:44,310 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:18:44,310 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:18:44,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:18:44,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:18:44,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:18:44,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:18:44,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 18:18:44,312 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:18:44,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:18:44,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 18:18:44,312 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_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa [2022-11-20 18:18:44,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:18:44,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:18:44,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:18:44,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:18:44,671 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:18:44,673 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-20 18:18:47,710 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:18:47,994 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:18:47,994 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-20 18:18:48,006 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/data/4dac9b5ee/635c5dd353a64971acaae3e1823f843a/FLAG1b15bcd06 [2022-11-20 18:18:48,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/data/4dac9b5ee/635c5dd353a64971acaae3e1823f843a [2022-11-20 18:18:48,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:18:48,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:18:48,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:18:48,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:18:48,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:18:48,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5954a89d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48, skipping insertion in model container [2022-11-20 18:18:48,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:18:48,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:18:48,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:18:48,335 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:18:48,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:18:48,398 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:18:48,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48 WrapperNode [2022-11-20 18:18:48,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:18:48,400 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:18:48,400 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:18:48,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:18:48,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,443 INFO L138 Inliner]: procedures = 110, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2022-11-20 18:18:48,443 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:18:48,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:18:48,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:18:48,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:18:48,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,476 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:18:48,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:18:48,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:18:48,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:18:48,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:48,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:18:48,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:18:48,520 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:18:48,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:18:48,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:18:48,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:18:48,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 18:18:48,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:18:48,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:18:48,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:18:48,726 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:18:48,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:18:48,953 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:18:48,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:18:48,995 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 18:18:48,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:48 BoogieIcfgContainer [2022-11-20 18:18:48,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:18:48,999 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:18:48,999 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:18:49,011 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:18:49,011 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:48" (1/1) ... [2022-11-20 18:18:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:18:49,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:18:49,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2022-11-20 18:18:49,081 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-11-20 18:18:49,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:18:49,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:18:49,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:18:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:18:49,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:18:49,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:18:49,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2022-11-20 18:18:49,738 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-11-20 18:18:49,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:18:49,739 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:18:49,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:18:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:18:50,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:18:50,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:18:50,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 21 states and 26 transitions. [2022-11-20 18:18:50,052 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-20 18:18:50,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:18:50,053 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:18:50,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:18:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:18:50,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:18:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:18:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 20 states and 25 transitions. [2022-11-20 18:18:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2022-11-20 18:18:50,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:18:50,432 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:18:50,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:18:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:50,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:18:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:50,554 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:18:50,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:18:50,595 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2022-11-20 18:18:50,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:18:50 ImpRootNode [2022-11-20 18:18:50,628 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:18:50,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:18:50,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:18:50,629 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:18:50,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:18:48" (3/4) ... [2022-11-20 18:18:50,631 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:18:50,670 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:18:50,678 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:18:50,679 INFO L158 Benchmark]: Toolchain (without parser) took 2653.74ms. Allocated memory is still 190.8MB. Free memory was 157.7MB in the beginning and 98.3MB in the end (delta: 59.4MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,680 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 144.7MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:18:50,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.63ms. Allocated memory is still 190.8MB. Free memory was 157.7MB in the beginning and 142.4MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,681 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.31ms. Allocated memory is still 190.8MB. Free memory was 142.4MB in the beginning and 140.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,681 INFO L158 Benchmark]: Boogie Preprocessor took 31.67ms. Allocated memory is still 190.8MB. Free memory was 140.3MB in the beginning and 139.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,682 INFO L158 Benchmark]: RCFGBuilder took 521.91ms. Allocated memory is still 190.8MB. Free memory was 139.0MB in the beginning and 123.8MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,683 INFO L158 Benchmark]: CodeCheck took 1628.52ms. Allocated memory is still 190.8MB. Free memory was 123.8MB in the beginning and 100.4MB in the end (delta: 23.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,683 INFO L158 Benchmark]: Witness Printer took 50.01ms. Allocated memory is still 190.8MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:18:50,687 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: 1.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 24 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 96 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 24 mSolverCounterUnsat, 6 mSDtfsCounter, 96 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 124 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 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: 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)=16908, \read(*y)=16909, \read(*z)=12579, __builtin_alloca (sizeof(int))={594:0}, __builtin_alloca (sizeof(int))={592:0}, __builtin_alloca (sizeof(int))={593:0}, x={593:0}, y={592:0}, z={594:0}] [L554] COND TRUE *x > 0 && *y > 0 && *z > 0 [L555] EXPR \read(*y) [L555] EXPR \read(*x) VAL [\read(*x)=16908, \read(*y)=16909, __builtin_alloca (sizeof(int))={594:0}, __builtin_alloca (sizeof(int))={592:0}, __builtin_alloca (sizeof(int))={593:0}, x={593:0}, y={592:0}, z={594:0}] [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))={594:0}, __builtin_alloca (sizeof(int))={592:0}, __builtin_alloca (sizeof(int))={593:0}, x={593:0}, y={592:0}, z={594:0}] [L558] *x - 1 VAL [\read(*x)=-2147483648, __builtin_alloca (sizeof(int))={594:0}, __builtin_alloca (sizeof(int))={592:0}, __builtin_alloca (sizeof(int))={593:0}, x={593:0}, y={592:0}, z={594:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 144.7MB. Free memory is still 86.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.63ms. Allocated memory is still 190.8MB. Free memory was 157.7MB in the beginning and 142.4MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.31ms. Allocated memory is still 190.8MB. Free memory was 142.4MB in the beginning and 140.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.67ms. Allocated memory is still 190.8MB. Free memory was 140.3MB in the beginning and 139.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.91ms. Allocated memory is still 190.8MB. Free memory was 139.0MB in the beginning and 123.8MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 1628.52ms. Allocated memory is still 190.8MB. Free memory was 123.8MB in the beginning and 100.4MB in the end (delta: 23.3MB). Peak memory consumption was 23.3MB. Max. memory is 16.1GB. * Witness Printer took 50.01ms. Allocated memory is still 190.8MB. Free memory was 100.4MB in the beginning and 98.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 18:18:50,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5af2be28-7b54-4dc0-8fc6-9c81620d49ab/bin/ukojak-pZX7IvK2PQ/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)