./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/cstrcpy_reverse_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/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_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/cstrcpy_reverse_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/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_2ac00849-1f7f-467a-8056-098f45c4516b/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 cf36d0c9351c4c2fb1711d3f7c837e0253db9403415afa1c4469ec7ba9a72414 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-15 02:56:17,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-15 02:56:17,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-15 02:56:17,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-15 02:56:17,333 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-15 02:56:17,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-15 02:56:17,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-15 02:56:17,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-15 02:56:17,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-15 02:56:17,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-15 02:56:17,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-15 02:56:17,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-15 02:56:17,357 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-15 02:56:17,358 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-15 02:56:17,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-15 02:56:17,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-15 02:56:17,361 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-15 02:56:17,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-15 02:56:17,363 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-15 02:56:17,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-15 02:56:17,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-15 02:56:17,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-15 02:56:17,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-15 02:56:17,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-15 02:56:17,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-15 02:56:17,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-15 02:56:17,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-15 02:56:17,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-15 02:56:17,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-15 02:56:17,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-15 02:56:17,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-15 02:56:17,380 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-15 02:56:17,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-15 02:56:17,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-15 02:56:17,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-15 02:56:17,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-15 02:56:17,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-15 02:56:17,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-15 02:56:17,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-15 02:56:17,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-15 02:56:17,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-15 02:56:17,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-15 02:56:17,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-15 02:56:17,405 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-15 02:56:17,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-15 02:56:17,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-15 02:56:17,407 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-15 02:56:17,407 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-15 02:56:17,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-15 02:56:17,408 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-15 02:56:17,409 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-15 02:56:17,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-15 02:56:17,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-15 02:56:17,409 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-15 02:56:17,409 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-15 02:56:17,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-15 02:56:17,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 02:56:17,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-15 02:56:17,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-15 02:56:17,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-15 02:56:17,410 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-15 02:56:17,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-15 02:56:17,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-15 02:56:17,411 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_2ac00849-1f7f-467a-8056-098f45c4516b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf36d0c9351c4c2fb1711d3f7c837e0253db9403415afa1c4469ec7ba9a72414 [2022-12-15 02:56:17,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-15 02:56:17,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-15 02:56:17,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-15 02:56:17,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-15 02:56:17,603 INFO L275 PluginConnector]: CDTParser initialized [2022-12-15 02:56:17,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-15/cstrcpy_reverse_alloca.i [2022-12-15 02:56:20,176 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-15 02:56:20,370 INFO L351 CDTParser]: Found 1 translation units. [2022-12-15 02:56:20,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/sv-benchmarks/c/termination-15/cstrcpy_reverse_alloca.i [2022-12-15 02:56:20,376 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/data/2d314d19c/a820f94763e041d2adeebea83303c4b6/FLAG9279d721d [2022-12-15 02:56:20,766 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/data/2d314d19c/a820f94763e041d2adeebea83303c4b6 [2022-12-15 02:56:20,771 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-15 02:56:20,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-15 02:56:20,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-15 02:56:20,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-15 02:56:20,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-15 02:56:20,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:56:20" (1/1) ... [2022-12-15 02:56:20,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@201721e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:20, skipping insertion in model container [2022-12-15 02:56:20,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:56:20" (1/1) ... [2022-12-15 02:56:20,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-15 02:56:20,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-15 02:56:20,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 02:56:20,993 INFO L203 MainTranslator]: Completed pre-run [2022-12-15 02:56:21,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-15 02:56:21,040 INFO L208 MainTranslator]: Completed translation [2022-12-15 02:56:21,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21 WrapperNode [2022-12-15 02:56:21,040 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-15 02:56:21,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-15 02:56:21,041 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-15 02:56:21,041 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-15 02:56:21,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,068 INFO L138 Inliner]: procedures = 152, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2022-12-15 02:56:21,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-15 02:56:21,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-15 02:56:21,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-15 02:56:21,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-15 02:56:21,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,084 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-15 02:56:21,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-15 02:56:21,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-15 02:56:21,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-15 02:56:21,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-15 02:56:21,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/z3 [2022-12-15 02:56:21,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-15 02:56:21,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-15 02:56:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-15 02:56:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-15 02:56:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-15 02:56:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-15 02:56:21,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-15 02:56:21,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-15 02:56:21,207 INFO L235 CfgBuilder]: Building ICFG [2022-12-15 02:56:21,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-15 02:56:21,310 INFO L276 CfgBuilder]: Performing block encoding [2022-12-15 02:56:21,335 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-15 02:56:21,335 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-15 02:56:21,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:56:21 BoogieIcfgContainer [2022-12-15 02:56:21,337 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-15 02:56:21,338 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-15 02:56:21,338 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-15 02:56:21,346 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-15 02:56:21,346 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:56:21" (1/1) ... [2022-12-15 02:56:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-15 02:56:21,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:56:21,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2022-12-15 02:56:21,392 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-15 02:56:21,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-15 02:56:21,394 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:56:21,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:56:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:56:21,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 02:56:21,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:56:21,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-12-15 02:56:21,603 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-15 02:56:21,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-15 02:56:21,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:56:21,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:56:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:56:21,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 02:56:21,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:56:21,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2022-12-15 02:56:21,771 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-15 02:56:21,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-15 02:56:21,772 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:56:21,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:56:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:56:21,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 02:56:21,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:56:21,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2022-12-15 02:56:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-12-15 02:56:21,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-15 02:56:21,942 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-15 02:56:21,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-15 02:56:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-15 02:56:21,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-15 02:56:22,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-15 02:56:22,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2022-12-15 02:56:22,138 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-12-15 02:56:22,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-15 02:56:22,138 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-12-15 02:56:22,144 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-15 02:56:22,161 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 02:56:22,165 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 02:56:22,165 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-15 02:56:22,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 15.12 02:56:22 ImpRootNode [2022-12-15 02:56:22,165 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-15 02:56:22,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-15 02:56:22,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-15 02:56:22,166 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-15 02:56:22,166 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:56:21" (3/4) ... [2022-12-15 02:56:22,169 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-15 02:56:22,176 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-12-15 02:56:22,176 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-15 02:56:22,176 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-15 02:56:22,176 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-15 02:56:22,203 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-15 02:56:22,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-15 02:56:22,204 INFO L158 Benchmark]: Toolchain (without parser) took 1431.02ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 105.2MB in the end (delta: 40.7MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,204 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 72.0MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-15 02:56:22,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 265.94ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 128.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.68ms. Allocated memory is still 176.2MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,205 INFO L158 Benchmark]: Boogie Preprocessor took 16.43ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 124.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,205 INFO L158 Benchmark]: RCFGBuilder took 251.49ms. Allocated memory is still 176.2MB. Free memory was 124.9MB in the beginning and 112.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,205 INFO L158 Benchmark]: CodeCheck took 827.24ms. Allocated memory is still 176.2MB. Free memory was 112.4MB in the beginning and 108.2MB in the end (delta: 4.1MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,206 INFO L158 Benchmark]: Witness Printer took 37.30ms. Allocated memory is still 176.2MB. Free memory was 108.2MB in the beginning and 105.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-15 02:56:22,207 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, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 147 IncrementalHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 0 mSDtfsCounter, 147 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 385]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 385]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 386]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 386]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 368]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 72.0MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 265.94ms. Allocated memory is still 176.2MB. Free memory was 145.9MB in the beginning and 128.5MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.68ms. Allocated memory is still 176.2MB. Free memory was 128.5MB in the beginning and 126.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.43ms. Allocated memory is still 176.2MB. Free memory was 126.4MB in the beginning and 124.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 251.49ms. Allocated memory is still 176.2MB. Free memory was 124.9MB in the beginning and 112.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 827.24ms. Allocated memory is still 176.2MB. Free memory was 112.4MB in the beginning and 108.2MB in the end (delta: 4.1MB). Peak memory consumption was 1.4MB. Max. memory is 16.1GB. * Witness Printer took 37.30ms. Allocated memory is still 176.2MB. Free memory was 108.2MB in the beginning and 105.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-15 02:56:22,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ac00849-1f7f-467a-8056-098f45c4516b/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