./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/volatile_alias.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/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_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/volatile_alias.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/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 32bit --witnessprinter.graph.data.programhash a988b6de948d75b5e0137d9fcbd7a2fd2df2ed717cdabff89a8624df62a9e556 --- 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 20:02:49,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:02:49,250 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:02:49,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:02:49,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:02:49,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:02:49,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:02:49,266 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:02:49,267 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:02:49,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:02:49,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:02:49,269 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:02:49,269 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:02:49,270 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:02:49,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:02:49,272 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:02:49,273 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:02:49,273 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:02:49,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:02:49,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:02:49,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:02:49,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:02:49,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:02:49,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:02:49,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:02:49,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:02:49,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:02:49,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:02:49,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:02:49,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:02:49,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:02:49,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:02:49,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:02:49,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:02:49,286 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:02:49,286 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:02:49,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:02:49,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:02:49,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:02:49,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:02:49,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:02:49,289 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 20:02:49,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:02:49,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:02:49,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 20:02:49,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 20:02:49,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:02:49,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:02:49,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:02:49,305 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 20:02:49,305 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 20:02:49,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:02:49,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 20:02:49,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:02:49,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 20:02:49,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:02:49,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 20:02:49,306 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 20:02:49,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 20:02:49,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 20:02:49,307 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:02:49,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 20:02:49,307 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:02:49,307 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:02:49,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:02:49,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:02:49,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:02:49,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:02:49,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 20:02:49,308 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:02:49,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:02:49,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 20:02:49,309 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_2441addb-b3dc-4fc9-b578-72648a5378dd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a988b6de948d75b5e0137d9fcbd7a2fd2df2ed717cdabff89a8624df62a9e556 [2022-12-14 20:02:49,468 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:02:49,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:02:49,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:02:49,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:02:49,489 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:02:49,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/ldv-regression/volatile_alias.i [2022-12-14 20:02:52,160 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:02:52,302 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:02:52,303 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/sv-benchmarks/c/ldv-regression/volatile_alias.i [2022-12-14 20:02:52,307 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/data/38ef47a33/e87b58d6777c467e91afebde171f20c9/FLAGf8fbfcf1d [2022-12-14 20:02:52,318 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/data/38ef47a33/e87b58d6777c467e91afebde171f20c9 [2022-12-14 20:02:52,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:02:52,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:02:52,322 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:02:52,322 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:02:52,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:02:52,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,326 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52aad2f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52, skipping insertion in model container [2022-12-14 20:02:52,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:02:52,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:02:52,470 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/sv-benchmarks/c/ldv-regression/volatile_alias.i[409,422] [2022-12-14 20:02:52,472 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:02:52,480 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:02:52,491 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/sv-benchmarks/c/ldv-regression/volatile_alias.i[409,422] [2022-12-14 20:02:52,492 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:02:52,503 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:02:52,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52 WrapperNode [2022-12-14 20:02:52,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:02:52,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:02:52,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:02:52,504 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:02:52,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,526 INFO L138 Inliner]: procedures = 12, calls = 14, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-12-14 20:02:52,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:02:52,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:02:52,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:02:52,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:02:52,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,540 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:02:52,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:02:52,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:02:52,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:02:52,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:02:52,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:02:52,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:02:52,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:02:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 20:02:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 20:02:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:02:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:02:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 20:02:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 20:02:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 20:02:52,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 20:02:52,669 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:02:52,671 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:02:52,738 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:02:52,757 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:02:52,757 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 20:02:52,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:52 BoogieIcfgContainer [2022-12-14 20:02:52,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:02:52,760 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:02:52,760 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:02:52,767 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:02:52,767 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:52" (1/1) ... [2022-12-14 20:02:52,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:02:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:02:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2022-12-14 20:02:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2022-12-14 20:02:52,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2022-12-14 20:02:52,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:02:52,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:02:52,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:02:52,937 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 20:02:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:02:52,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2022-12-14 20:02:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2022-12-14 20:02:52,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-12-14 20:02:52,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:02:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:02:52,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:02:53,009 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 20:02:53,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:02:53,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2022-12-14 20:02:53,023 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2022-12-14 20:02:53,023 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 20:02:53,024 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-12-14 20:02:53,031 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-12-14 20:02:53,038 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-12-14 20:02:53,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 08:02:53 ImpRootNode [2022-12-14 20:02:53,047 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 20:02:53,048 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 20:02:53,048 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 20:02:53,048 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 20:02:53,049 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:02:52" (3/4) ... [2022-12-14 20:02:53,052 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 20:02:53,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 20:02:53,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-14 20:02:53,059 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 20:02:53,060 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 20:02:53,094 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 20:02:53,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 20:02:53,095 INFO L158 Benchmark]: Toolchain (without parser) took 773.59ms. Allocated memory is still 130.0MB. Free memory was 72.7MB in the beginning and 76.7MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:02:53,095 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:02:53,096 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.49ms. Allocated memory is still 130.0MB. Free memory was 72.3MB in the beginning and 62.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 20:02:53,096 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.71ms. Allocated memory is still 130.0MB. Free memory was 62.6MB in the beginning and 61.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:02:53,097 INFO L158 Benchmark]: Boogie Preprocessor took 14.81ms. Allocated memory is still 130.0MB. Free memory was 61.1MB in the beginning and 60.3MB in the end (delta: 829.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:02:53,097 INFO L158 Benchmark]: RCFGBuilder took 216.59ms. Allocated memory is still 130.0MB. Free memory was 60.3MB in the beginning and 96.0MB in the end (delta: -35.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2022-12-14 20:02:53,098 INFO L158 Benchmark]: CodeCheck took 287.57ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 79.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 20:02:53,098 INFO L158 Benchmark]: Witness Printer took 46.00ms. Allocated memory is still 130.0MB. Free memory was 78.8MB in the beginning and 76.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:02:53,100 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, 6 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 0 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: 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: 13]: Loop Invariant Derived loop invariant: aux-a-aux == 4 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 130.0MB. Free memory is still 83.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.49ms. Allocated memory is still 130.0MB. Free memory was 72.3MB in the beginning and 62.6MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.71ms. Allocated memory is still 130.0MB. Free memory was 62.6MB in the beginning and 61.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.81ms. Allocated memory is still 130.0MB. Free memory was 61.1MB in the beginning and 60.3MB in the end (delta: 829.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 216.59ms. Allocated memory is still 130.0MB. Free memory was 60.3MB in the beginning and 96.0MB in the end (delta: -35.8MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * CodeCheck took 287.57ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 79.2MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 46.00ms. Allocated memory is still 130.0MB. Free memory was 78.8MB in the beginning and 76.7MB 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! [2022-12-14 20:02:53,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2441addb-b3dc-4fc9-b578-72648a5378dd/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