./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/b.16-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/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_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/b.16-alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/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_4c054bc6-9f22-4973-bb19-986ea6191f68/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 ce057761c66e7025e367ba93d275e71dea4e6dc273a0ba7c5cecd0f774a5d453 --- 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 20:31:36,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 20:31:36,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 20:31:36,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 20:31:36,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 20:31:36,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 20:31:36,491 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 20:31:36,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 20:31:36,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 20:31:36,494 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 20:31:36,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 20:31:36,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 20:31:36,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 20:31:36,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 20:31:36,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 20:31:36,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 20:31:36,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 20:31:36,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 20:31:36,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 20:31:36,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 20:31:36,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 20:31:36,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 20:31:36,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 20:31:36,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 20:31:36,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 20:31:36,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 20:31:36,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 20:31:36,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 20:31:36,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 20:31:36,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 20:31:36,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 20:31:36,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 20:31:36,510 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 20:31:36,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 20:31:36,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 20:31:36,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 20:31:36,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 20:31:36,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 20:31:36,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 20:31:36,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 20:31:36,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 20:31:36,517 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 20:31:36,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 20:31:36,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 20:31:36,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 20:31:36,538 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 20:31:36,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 20:31:36,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 20:31:36,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 20:31:36,540 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 20:31:36,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 20:31:36,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 20:31:36,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 20:31:36,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 20:31:36,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 20:31:36,541 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 20:31:36,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 20:31:36,541 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 20:31:36,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 20:31:36,541 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 20:31:36,541 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 20:31:36,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 20:31:36,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:31:36,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 20:31:36,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 20:31:36,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 20:31:36,543 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 20:31:36,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 20:31:36,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 20:31:36,543 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_4c054bc6-9f22-4973-bb19-986ea6191f68/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce057761c66e7025e367ba93d275e71dea4e6dc273a0ba7c5cecd0f774a5d453 [2022-12-14 20:31:36,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 20:31:36,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 20:31:36,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 20:31:36,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 20:31:36,745 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 20:31:36,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/termination-memory-alloca/b.16-alloca.i [2022-12-14 20:31:39,323 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 20:31:39,491 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 20:31:39,492 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/sv-benchmarks/c/termination-memory-alloca/b.16-alloca.i [2022-12-14 20:31:39,500 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/data/28487eaf7/1f2ea8b4701743ef8ffab9bda57f6f85/FLAGab94f2273 [2022-12-14 20:31:39,892 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/data/28487eaf7/1f2ea8b4701743ef8ffab9bda57f6f85 [2022-12-14 20:31:39,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 20:31:39,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 20:31:39,895 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 20:31:39,895 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 20:31:39,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 20:31:39,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:31:39" (1/1) ... [2022-12-14 20:31:39,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7447bba9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:39, skipping insertion in model container [2022-12-14 20:31:39,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:31:39" (1/1) ... [2022-12-14 20:31:39,904 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 20:31:39,924 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 20:31:40,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:31:40,088 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 20:31:40,112 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 20:31:40,126 INFO L208 MainTranslator]: Completed translation [2022-12-14 20:31:40,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40 WrapperNode [2022-12-14 20:31:40,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 20:31:40,127 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 20:31:40,127 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 20:31:40,128 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 20:31:40,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,152 INFO L138 Inliner]: procedures = 111, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 65 [2022-12-14 20:31:40,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 20:31:40,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 20:31:40,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 20:31:40,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 20:31:40,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,167 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 20:31:40,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 20:31:40,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 20:31:40,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 20:31:40,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 20:31:40,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 20:31:40,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 20:31:40,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 20:31:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 20:31:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 20:31:40,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 20:31:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 20:31:40,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 20:31:40,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 20:31:40,298 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 20:31:40,300 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 20:31:40,393 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 20:31:40,416 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 20:31:40,416 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 20:31:40,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:40 BoogieIcfgContainer [2022-12-14 20:31:40,419 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 20:31:40,420 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 20:31:40,420 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 20:31:40,428 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 20:31:40,428 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:40" (1/1) ... [2022-12-14 20:31:40,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 20:31:40,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:40,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2022-12-14 20:31:40,482 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-12-14 20:31:40,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 20:31:40,484 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:40,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:40,736 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 20:31:40,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2022-12-14 20:31:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-14 20:31:40,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:31:40,775 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:40,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:40,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:40,872 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 20:31:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 19 states and 22 transitions. [2022-12-14 20:31:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-12-14 20:31:40,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 20:31:40,990 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:40,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:41,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:41,161 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 20:31:41,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:41,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2022-12-14 20:31:41,569 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-12-14 20:31:41,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 20:31:41,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:41,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:41,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:41,813 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 20:31:42,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:42,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 30 states and 39 transitions. [2022-12-14 20:31:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2022-12-14 20:31:42,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 20:31:42,381 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:42,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:42,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 20:31:43,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:43,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 36 states and 51 transitions. [2022-12-14 20:31:43,609 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2022-12-14 20:31:43,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 20:31:43,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:43,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:43,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 20:31:45,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:45,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 42 states and 61 transitions. [2022-12-14 20:31:45,252 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 61 transitions. [2022-12-14 20:31:45,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 20:31:45,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 20:31:45,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 20:31:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 20:31:45,638 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 20:31:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 20:31:46,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2022-12-14 20:31:46,751 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-12-14 20:31:46,751 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 20:31:46,751 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-12-14 20:31:46,758 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 20:31:46,798 INFO L560 CodeCheckObserver]: Invariant with dag size 15 [2022-12-14 20:31:46,808 INFO L560 CodeCheckObserver]: Invariant with dag size 17 [2022-12-14 20:31:46,809 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 20:31:46,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 08:31:46 ImpRootNode [2022-12-14 20:31:46,810 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 20:31:46,810 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 20:31:46,811 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 20:31:46,811 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 20:31:46,811 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:31:40" (3/4) ... [2022-12-14 20:31:46,814 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 20:31:46,823 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-14 20:31:46,823 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-14 20:31:46,824 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-14 20:31:46,824 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 20:31:46,859 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 20:31:46,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 20:31:46,860 INFO L158 Benchmark]: Toolchain (without parser) took 6965.04ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.4MB in the beginning and 118.1MB in the end (delta: -19.7MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-12-14 20:31:46,860 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:31:46,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.48ms. Allocated memory is still 134.2MB. Free memory was 98.4MB in the beginning and 82.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 20:31:46,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.43ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 81.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:31:46,862 INFO L158 Benchmark]: Boogie Preprocessor took 15.28ms. Allocated memory is still 134.2MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:31:46,862 INFO L158 Benchmark]: RCFGBuilder took 249.88ms. Allocated memory is still 134.2MB. Free memory was 79.7MB in the beginning and 67.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 20:31:46,862 INFO L158 Benchmark]: CodeCheck took 6390.34ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 67.1MB in the beginning and 121.2MB in the end (delta: -54.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 20:31:46,863 INFO L158 Benchmark]: Witness Printer took 48.76ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 20:31:46,865 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 238 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 158 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 161 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 886 IncrementalHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 161 mSolverCounterUnsat, 42 mSDtfsCounter, 886 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 640 GetRequests, 479 SyntacticMatches, 9 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8870 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 444 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 3/8 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: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 559]: 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: 555]: Loop Invariant Derived loop invariant: (!(y_ref == x_ref) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647 - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((!(y_ref == x_ref) && 1 <= unknown-#memory_int-unknown[x_ref][x_ref]) && unknown-#memory_int-unknown[y_ref][y_ref] <= 2147483647) && unknown-#memory_int-unknown[x_ref][x_ref] <= 2147483647 - InvariantResult [Line: 555]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 134.2MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.48ms. Allocated memory is still 134.2MB. Free memory was 98.4MB in the beginning and 82.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.43ms. Allocated memory is still 134.2MB. Free memory was 82.7MB in the beginning and 81.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.28ms. Allocated memory is still 134.2MB. Free memory was 81.0MB in the beginning and 79.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 249.88ms. Allocated memory is still 134.2MB. Free memory was 79.7MB in the beginning and 67.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 6390.34ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 67.1MB in the beginning and 121.2MB in the end (delta: -54.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 48.76ms. Allocated memory is still 161.5MB. Free memory was 121.2MB in the beginning and 118.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-12-14 20:31:46,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c054bc6-9f22-4973-bb19-986ea6191f68/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