./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncat-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncat-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a82db68f7b8f363f6b0bcc2411736f9dd89d1bc3b2cb78acd33fa27de131c98b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 23:22:32,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 23:22:32,158 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 23:22:32,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 23:22:32,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 23:22:32,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 23:22:32,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 23:22:32,175 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 23:22:32,176 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 23:22:32,176 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 23:22:32,177 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 23:22:32,178 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 23:22:32,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 23:22:32,179 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 23:22:32,179 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 23:22:32,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 23:22:32,181 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 23:22:32,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 23:22:32,183 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 23:22:32,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 23:22:32,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 23:22:32,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 23:22:32,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 23:22:32,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 23:22:32,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 23:22:32,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 23:22:32,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 23:22:32,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 23:22:32,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 23:22:32,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 23:22:32,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 23:22:32,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 23:22:32,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 23:22:32,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 23:22:32,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 23:22:32,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 23:22:32,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 23:22:32,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 23:22:32,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 23:22:32,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 23:22:32,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 23:22:32,197 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 23:22:32,213 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 23:22:32,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 23:22:32,214 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 23:22:32,214 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 23:22:32,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 23:22:32,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 23:22:32,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 23:22:32,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 23:22:32,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 23:22:32,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 23:22:32,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 23:22:32,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 23:22:32,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 23:22:32,216 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 23:22:32,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 23:22:32,216 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 23:22:32,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 23:22:32,216 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 23:22:32,216 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 23:22:32,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 23:22:32,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:22:32,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 23:22:32,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 23:22:32,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 23:22:32,217 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 23:22:32,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 23:22:32,217 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 23:22:32,217 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_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a82db68f7b8f363f6b0bcc2411736f9dd89d1bc3b2cb78acd33fa27de131c98b [2022-12-14 23:22:32,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 23:22:32,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 23:22:32,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 23:22:32,403 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 23:22:32,403 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 23:22:32,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncat-alloca-1.i [2022-12-14 23:22:34,909 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 23:22:35,103 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 23:22:35,103 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/sv-benchmarks/c/termination-memory-alloca/openbsd_cstrncat-alloca-1.i [2022-12-14 23:22:35,110 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/data/10d78b8df/8354397092f34ac7a54a8b3187d7d468/FLAGfb01fbae0 [2022-12-14 23:22:35,465 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/data/10d78b8df/8354397092f34ac7a54a8b3187d7d468 [2022-12-14 23:22:35,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 23:22:35,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 23:22:35,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 23:22:35,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 23:22:35,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 23:22:35,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b85cc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35, skipping insertion in model container [2022-12-14 23:22:35,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 23:22:35,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 23:22:35,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:22:35,671 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 23:22:35,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 23:22:35,711 INFO L208 MainTranslator]: Completed translation [2022-12-14 23:22:35,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35 WrapperNode [2022-12-14 23:22:35,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 23:22:35,712 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 23:22:35,712 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 23:22:35,712 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 23:22:35,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,726 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,739 INFO L138 Inliner]: procedures = 111, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2022-12-14 23:22:35,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 23:22:35,740 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 23:22:35,740 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 23:22:35,740 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 23:22:35,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,756 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 23:22:35,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 23:22:35,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 23:22:35,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 23:22:35,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:22:35" (1/1) ... [2022-12-14 23:22:35,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 23:22:35,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 23:22:35,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 23:22:35,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 23:22:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 23:22:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 23:22:35,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 23:22:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 23:22:35,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 23:22:35,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 23:22:35,894 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 23:22:35,895 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 23:22:36,040 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 23:22:36,077 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 23:22:36,077 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 23:22:36,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:22:36 BoogieIcfgContainer [2022-12-14 23:22:36,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 23:22:36,080 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 23:22:36,081 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 23:22:36,088 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 23:22:36,088 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:22:36" (1/1) ... [2022-12-14 23:22:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 23:22:36,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2022-12-14 23:22:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-12-14 23:22:36,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 23:22:36,137 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2022-12-14 23:22:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-12-14 23:22:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 23:22:36,342 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 29 states and 36 transitions. [2022-12-14 23:22:36,420 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2022-12-14 23:22:36,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 23:22:36,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2022-12-14 23:22:36,580 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-12-14 23:22:36,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 23:22:36,580 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 27 states and 34 transitions. [2022-12-14 23:22:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-12-14 23:22:36,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 23:22:36,690 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2022-12-14 23:22:36,835 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-12-14 23:22:36,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 23:22:36,835 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2022-12-14 23:22:36,897 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-12-14 23:22:36,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 23:22:36,898 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:36,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:36,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:36,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2022-12-14 23:22:36,947 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2022-12-14 23:22:36,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 23:22:36,947 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:36,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:37,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 23 states and 30 transitions. [2022-12-14 23:22:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-12-14 23:22:37,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 23:22:37,367 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 23:22:37,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 23:22:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 23:22:37,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 23:22:37,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 23:22:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2022-12-14 23:22:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-12-14 23:22:37,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 23:22:37,904 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2022-12-14 23:22:37,911 INFO L754 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2022-12-14 23:22:37,961 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 23:22:37,964 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 23:22:37,964 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 23:22:37,964 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 23:22:37,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 11:22:37 ImpRootNode [2022-12-14 23:22:37,965 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 23:22:37,965 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 23:22:37,966 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 23:22:37,966 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 23:22:37,966 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:22:36" (3/4) ... [2022-12-14 23:22:37,969 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 23:22:37,978 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-12-14 23:22:37,978 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 23:22:37,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 23:22:37,979 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 23:22:38,016 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 23:22:38,016 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 23:22:38,016 INFO L158 Benchmark]: Toolchain (without parser) took 2548.57ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 85.6MB in the beginning and 114.1MB in the end (delta: -28.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,016 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 23:22:38,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.33ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 69.4MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,017 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.68ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,017 INFO L158 Benchmark]: Boogie Preprocessor took 17.55ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 66.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,018 INFO L158 Benchmark]: RCFGBuilder took 321.63ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 66.0MB in the beginning and 128.7MB in the end (delta: -62.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,018 INFO L158 Benchmark]: CodeCheck took 1884.55ms. Allocated memory is still 157.3MB. Free memory was 128.6MB in the beginning and 117.3MB in the end (delta: 11.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,018 INFO L158 Benchmark]: Witness Printer took 50.37ms. Allocated memory is still 157.3MB. Free memory was 117.3MB in the beginning and 114.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 23:22:38,019 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, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 223 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 194 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 588 IncrementalHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 16 mSDtfsCounter, 588 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 470 GetRequests, 400 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1757 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - PositiveResult [Line: 577]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 577]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 580]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 581]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 581]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 564]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 550]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 117.4MB. Free memory is still 94.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.33ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 69.4MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.68ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 67.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.55ms. Allocated memory is still 117.4MB. Free memory was 67.3MB in the beginning and 66.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 321.63ms. Allocated memory was 117.4MB in the beginning and 157.3MB in the end (delta: 39.8MB). Free memory was 66.0MB in the beginning and 128.7MB in the end (delta: -62.7MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * CodeCheck took 1884.55ms. Allocated memory is still 157.3MB. Free memory was 128.6MB in the beginning and 117.3MB in the end (delta: 11.3MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Witness Printer took 50.37ms. Allocated memory is still 157.3MB. Free memory was 117.3MB in the beginning and 114.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 23:22:38,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cc80bdc-0243-450e-9a16-c37f92dc24d6/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE