./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 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.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_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS --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 Automizer --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-4e7fbc6 [2022-11-23 02:53:01,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:53:01,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:53:01,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:53:01,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:53:01,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:53:01,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:53:01,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:53:01,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:53:01,305 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:53:01,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:53:01,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:53:01,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:53:01,312 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:53:01,314 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:53:01,317 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:53:01,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:53:01,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:53:01,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:53:01,328 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:53:01,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:53:01,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:53:01,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:53:01,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:53:01,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:53:01,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:53:01,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:53:01,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:53:01,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:53:01,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:53:01,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:53:01,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:53:01,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:53:01,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:53:01,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:53:01,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:53:01,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:53:01,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:53:01,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:53:01,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:53:01,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:53:01,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-23 02:53:01,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:53:01,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:53:01,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:53:01,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:53:01,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 02:53:01,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 02:53:01,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:53:01,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:53:01,401 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:53:01,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:53:01,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:53:01,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:53:01,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:53:01,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 02:53:01,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 02:53:01,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 02:53:01,404 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 02:53:01,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:53:01,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:53:01,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 02:53:01,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:53:01,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:53:01,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 02:53:01,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:53:01,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:53:01,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 02:53:01,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 02:53:01,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:53:01,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 02:53:01,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 02:53:01,406 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 02:53:01,406 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 02:53:01,407 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 02:53:01,407 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07b282ace126e2e6034cb3e18e52d69833dcd5d95d5a3123bfc5247b81ecd1aa [2022-11-23 02:53:01,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:53:01,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:53:01,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:53:01,710 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:53:01,710 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:53:01,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-23 02:53:04,660 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:53:04,962 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:53:04,963 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/sv-benchmarks/c/termination-memory-alloca/Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-23 02:53:04,984 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/data/f7b084de6/7739609e535946229940ac4c4bd8c5ed/FLAGd65ce1164 [2022-11-23 02:53:05,008 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/data/f7b084de6/7739609e535946229940ac4c4bd8c5ed [2022-11-23 02:53:05,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:53:05,016 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:53:05,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:53:05,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:53:05,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:53:05,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aeacd91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05, skipping insertion in model container [2022-11-23 02:53:05,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:53:05,088 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:53:05,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:53:05,349 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:53:05,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:53:05,455 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:53:05,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05 WrapperNode [2022-11-23 02:53:05,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:53:05,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:53:05,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:53:05,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:53:05,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,518 INFO L138 Inliner]: procedures = 110, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 88 [2022-11-23 02:53:05,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:53:05,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:53:05,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:53:05,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:53:05,528 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,556 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,557 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:53:05,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:53:05,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:53:05,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:53:05,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (1/1) ... [2022-11-23 02:53:05,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 02:53:05,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:53:05,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 02:53:05,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 02:53:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 02:53:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 02:53:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 02:53:05,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 02:53:05,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:53:05,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:53:05,818 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:53:05,821 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:53:06,052 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:53:06,058 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:53:06,058 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 02:53:06,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:06 BoogieIcfgContainer [2022-11-23 02:53:06,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:53:06,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 02:53:06,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 02:53:06,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 02:53:06,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:53:05" (1/3) ... [2022-11-23 02:53:06,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386d0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:06, skipping insertion in model container [2022-11-23 02:53:06,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:53:05" (2/3) ... [2022-11-23 02:53:06,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@386d0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:53:06, skipping insertion in model container [2022-11-23 02:53:06,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:06" (3/3) ... [2022-11-23 02:53:06,071 INFO L112 eAbstractionObserver]: Analyzing ICFG Ben-Amram-2010LMCS-Ex2.3-alloca.i [2022-11-23 02:53:06,090 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 02:53:06,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-23 02:53:06,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 02:53:06,164 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44bddf21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 02:53:06,164 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-23 02:53:06,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:53:06,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 02:53:06,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:53:06,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:53:06,178 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:53:06,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:53:06,186 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450705, now seen corresponding path program 1 times [2022-11-23 02:53:06,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:53:06,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553157183] [2022-11-23 02:53:06,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:53:06,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:53:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:53:06,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:53:06,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:53:06,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553157183] [2022-11-23 02:53:06,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553157183] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:53:06,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:53:06,941 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 02:53:06,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876730635] [2022-11-23 02:53:06,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:53:06,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 02:53:06,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:53:06,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:53:06,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:53:06,992 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.6470588235294117) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:53:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:53:07,066 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-23 02:53:07,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:53:07,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-23 02:53:07,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 02:53:07,079 INFO L225 Difference]: With dead ends: 28 [2022-11-23 02:53:07,079 INFO L226 Difference]: Without dead ends: 19 [2022-11-23 02:53:07,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:53:07,086 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 5 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 02:53:07,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 61 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 02:53:07,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-23 02:53:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-23 02:53:07,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 18 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:53:07,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-23 02:53:07,120 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 9 [2022-11-23 02:53:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 02:53:07,120 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-23 02:53:07,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:53:07,121 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-23 02:53:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-23 02:53:07,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 02:53:07,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:53:07,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 02:53:07,122 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-23 02:53:07,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:53:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1211450513, now seen corresponding path program 1 times [2022-11-23 02:53:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:53:07,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252481552] [2022-11-23 02:53:07,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:53:07,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:53:07,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:53:07,166 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:53:07,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:53:07,212 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:53:07,212 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 02:53:07,214 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-23 02:53:07,216 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-23 02:53:07,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-23 02:53:07,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-23 02:53:07,217 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-23 02:53:07,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-23 02:53:07,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 02:53:07,222 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 02:53:07,229 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 02:53:07,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:53:07 BoogieIcfgContainer [2022-11-23 02:53:07,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 02:53:07,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:53:07,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:53:07,277 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:53:07,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:53:06" (3/4) ... [2022-11-23 02:53:07,280 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 02:53:07,318 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:53:07,318 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:53:07,319 INFO L158 Benchmark]: Toolchain (without parser) took 2303.11ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 134.6MB in the beginning and 174.5MB in the end (delta: -39.9MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2022-11-23 02:53:07,320 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 167.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:53:07,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 434.40ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 118.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 02:53:07,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.87ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 117.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:53:07,321 INFO L158 Benchmark]: Boogie Preprocessor took 56.31ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 115.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:53:07,322 INFO L158 Benchmark]: RCFGBuilder took 484.57ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 102.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 02:53:07,322 INFO L158 Benchmark]: TraceAbstraction took 1213.78ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 101.8MB in the beginning and 176.6MB in the end (delta: -74.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:53:07,323 INFO L158 Benchmark]: Witness Printer took 41.69ms. Allocated memory is still 224.4MB. Free memory was 176.6MB in the beginning and 174.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:53:07,326 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 167.8MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 434.40ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 118.6MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.87ms. Allocated memory is still 167.8MB. Free memory was 118.6MB in the beginning and 117.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 56.31ms. Allocated memory is still 167.8MB. Free memory was 117.1MB in the beginning and 115.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 484.57ms. Allocated memory is still 167.8MB. Free memory was 115.4MB in the beginning and 102.8MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1213.78ms. Allocated memory was 167.8MB in the beginning and 224.4MB in the end (delta: 56.6MB). Free memory was 101.8MB in the beginning and 176.6MB in the end (delta: -74.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.69ms. Allocated memory is still 224.4MB. Free memory was 176.6MB in the beginning and 174.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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 VAL [*x > 0 && *y > 0=1, \read(*x)=1, \read(*y)=2, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={5:0}, x={5:0}, y={6:0}, z={3:0}] [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)=1, \read(*y)=2, \read(*z)=1, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={5:0}, x={5:0}, y={6:0}, z={3:0}] [L554] COND TRUE *x > 0 && *y > 0 && *z > 0 [L555] EXPR \read(*y) [L555] EXPR \read(*x) VAL [\read(*x)=1, \read(*y)=2, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={5:0}, x={5:0}, y={6:0}, z={3:0}] [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))={3:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={5:0}, x={5:0}, y={6:0}, z={3:0}] [L558] *x - 1 VAL [\read(*x)=-2147483648, __builtin_alloca (sizeof(int))={3:0}, __builtin_alloca (sizeof(int))={6:0}, __builtin_alloca (sizeof(int))={5:0}, x={5:0}, y={6:0}, z={3:0}] - UnprovableResult [Line: 558]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 562]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 30 IncrementalHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 19 mSDtfsCounter, 30 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 02:53:07,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d410bde7-fccc-4c72-a70a-0979050d03ca/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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)