./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.01-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_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/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_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.01-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/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_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/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 06eda88bcf58fadc282f0463569ac76abefe45f388be92897534a5e4ca080960 --- 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 17:40:56,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:40:56,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:40:56,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:40:56,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:40:56,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:40:56,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:40:56,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:40:56,152 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:40:56,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:40:56,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:40:56,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:40:56,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:40:56,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:40:56,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:40:56,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:40:56,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:40:56,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:40:56,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:40:56,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:40:56,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:40:56,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:40:56,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:40:56,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:40:56,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:40:56,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:40:56,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:40:56,201 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:40:56,201 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:40:56,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:40:56,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:40:56,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:40:56,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:40:56,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:40:56,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:40:56,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:40:56,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:40:56,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:40:56,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:40:56,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:40:56,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:40:56,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-20 17:40:56,251 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:40:56,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:40:56,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:40:56,253 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:40:56,254 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:40:56,254 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:40:56,255 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:40:56,255 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:40:56,255 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:40:56,255 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:40:56,256 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:40:56,257 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:40:56,257 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:40:56,257 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:40:56,257 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:40:56,257 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:40:56,258 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:40:56,258 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:40:56,258 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:40:56,258 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:40:56,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:40:56,259 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:40:56,259 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:40:56,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:40:56,259 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:40:56,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:40:56,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:40:56,260 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_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 06eda88bcf58fadc282f0463569ac76abefe45f388be92897534a5e4ca080960 [2022-11-20 17:40:56,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:40:56,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:40:56,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:40:56,651 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:40:56,651 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:40:56,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/termination-memory-alloca/b.01-alloca.i [2022-11-20 17:40:59,725 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:40:59,961 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:40:59,993 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/sv-benchmarks/c/termination-memory-alloca/b.01-alloca.i [2022-11-20 17:41:00,008 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/data/1cfdb0ac6/9942132d0ca24c12b71d23aaca4b97c6/FLAG4bc3fc002 [2022-11-20 17:41:00,021 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/data/1cfdb0ac6/9942132d0ca24c12b71d23aaca4b97c6 [2022-11-20 17:41:00,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:41:00,025 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:41:00,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:41:00,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:41:00,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:41:00,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61bc9d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00, skipping insertion in model container [2022-11-20 17:41:00,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:41:00,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:41:00,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:41:00,351 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:41:00,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:41:00,459 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:41:00,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00 WrapperNode [2022-11-20 17:41:00,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:41:00,460 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:41:00,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:41:00,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:41:00,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,499 INFO L138 Inliner]: procedures = 111, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2022-11-20 17:41:00,500 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:41:00,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:41:00,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:41:00,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:41:00,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:41:00,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:41:00,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:41:00,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:41:00,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:41:00,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:41:00,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:41:00,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:41:00,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 17:41:00,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:41:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:41:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:41:00,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:41:00,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:41:00,733 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:41:00,735 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:41:00,842 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:41:00,884 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:41:00,885 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 17:41:00,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:00 BoogieIcfgContainer [2022-11-20 17:41:00,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:41:00,888 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:41:00,888 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:41:00,897 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:41:00,897 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:00" (1/1) ... [2022-11-20 17:41:00,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:41:00,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:41:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2022-11-20 17:41:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-11-20 17:41:00,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 17:41:00,985 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:41:00,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:41:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:41:01,850 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 17:41:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:41:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2022-11-20 17:41:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2022-11-20 17:41:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 17:41:01,933 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:41:01,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:41:01,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:41:02,243 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 17:41:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:41:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2022-11-20 17:41:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2022-11-20 17:41:02,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 17:41:02,694 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:41:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:41:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:41:02,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:41:03,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:41:03,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-11-20 17:41:03,013 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-20 17:41:03,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 17:41:03,014 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:41:03,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:41:03,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:41:03,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:41:04,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:41:04,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2022-11-20 17:41:04,132 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2022-11-20 17:41:04,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:41:04,132 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-20 17:41:04,143 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-20 17:41:04,175 INFO L560 CodeCheckObserver]: Invariant with dag size 18 [2022-11-20 17:41:04,186 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:41:04,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:41:04 ImpRootNode [2022-11-20 17:41:04,187 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:41:04,192 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:41:04,192 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:41:04,193 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:41:04,194 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:41:00" (3/4) ... [2022-11-20 17:41:04,197 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:41:04,207 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-20 17:41:04,207 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 17:41:04,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 17:41:04,208 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:41:04,260 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:41:04,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:41:04,261 INFO L158 Benchmark]: Toolchain (without parser) took 4235.16ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 129.2MB in the beginning and 72.8MB in the end (delta: 56.5MB). Peak memory consumption was 87.6MB. Max. memory is 16.1GB. [2022-11-20 17:41:04,261 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 113.2MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:41:04,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.20ms. Allocated memory is still 155.2MB. Free memory was 129.2MB in the beginning and 113.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 17:41:04,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.58ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:41:04,264 INFO L158 Benchmark]: Boogie Preprocessor took 42.28ms. Allocated memory is still 155.2MB. Free memory was 111.7MB in the beginning and 110.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:41:04,265 INFO L158 Benchmark]: RCFGBuilder took 343.82ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 98.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 17:41:04,265 INFO L158 Benchmark]: CodeCheck took 3298.99ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 98.3MB in the beginning and 74.9MB in the end (delta: 23.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. [2022-11-20 17:41:04,266 INFO L158 Benchmark]: Witness Printer took 67.73ms. Allocated memory is still 186.6MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:41:04,267 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, 9 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 197 IncrementalHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 0 mSDtfsCounter, 197 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 235 GetRequests, 187 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 3/7 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 - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 556]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: (!(y_ref == x_ref) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647) && 0 <= unknown-#memory_int-unknown[y_ref][y_ref] + 2147483648 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 113.2MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 433.20ms. Allocated memory is still 155.2MB. Free memory was 129.2MB in the beginning and 113.8MB in the end (delta: 15.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.58ms. Allocated memory is still 155.2MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.28ms. Allocated memory is still 155.2MB. Free memory was 111.7MB in the beginning and 110.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 343.82ms. Allocated memory is still 155.2MB. Free memory was 110.4MB in the beginning and 98.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 3298.99ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 98.3MB in the beginning and 74.9MB in the end (delta: 23.4MB). Peak memory consumption was 56.1MB. Max. memory is 16.1GB. * Witness Printer took 67.73ms. Allocated memory is still 186.6MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:41:04,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd6869ca-d6a6-487c-a3f1-1a55f2e3fbe1/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 Result: TRUE