./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg --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 ecf20dd2c3ee96f4ce33fb05fe8b8a847f94671834911abc2dee98681c717cc6 --- 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-b5237d8 [2022-11-21 23:01:11,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:01:11,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:01:11,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:01:11,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:01:11,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:01:11,148 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:01:11,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:01:11,153 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:01:11,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:01:11,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:01:11,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:01:11,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:01:11,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:01:11,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:01:11,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:01:11,172 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:01:11,173 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:01:11,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:01:11,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:01:11,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:01:11,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:01:11,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:01:11,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:01:11,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:01:11,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:01:11,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:01:11,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:01:11,198 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:01:11,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:01:11,199 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:01:11,200 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:01:11,200 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:01:11,201 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:01:11,202 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:01:11,202 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:01:11,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:01:11,203 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:01:11,203 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:01:11,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:01:11,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:01:11,209 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:01:11,249 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:01:11,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:01:11,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:01:11,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:01:11,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:01:11,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:01:11,252 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:01:11,252 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:01:11,252 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:01:11,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:01:11,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:01:11,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:01:11,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:01:11,254 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:01:11,254 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:01:11,254 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:01:11,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:01:11,255 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:01:11,255 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:01:11,255 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:01:11,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:01:11,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:01:11,256 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:01:11,256 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:01:11,256 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:01:11,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:01:11,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:01:11,257 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_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ecf20dd2c3ee96f4ce33fb05fe8b8a847f94671834911abc2dee98681c717cc6 [2022-11-21 23:01:11,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:01:11,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:01:11,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:01:11,525 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:01:11,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:01:11,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2022-11-21 23:01:14,534 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:01:14,692 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:01:14,693 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/sv-benchmarks/c/termination-crafted-lit/cstrspn.c [2022-11-21 23:01:14,700 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/data/81b73e3ed/77331162b94146989de8b571a917b3c4/FLAG5f879b17a [2022-11-21 23:01:14,716 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/data/81b73e3ed/77331162b94146989de8b571a917b3c4 [2022-11-21 23:01:14,718 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:01:14,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:01:14,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:01:14,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:01:14,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:01:14,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:01:14" (1/1) ... [2022-11-21 23:01:14,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cdb9699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:14, skipping insertion in model container [2022-11-21 23:01:14,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:01:14" (1/1) ... [2022-11-21 23:01:14,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:01:14,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:01:14,952 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:01:14,966 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:01:14,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:01:15,001 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:01:15,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15 WrapperNode [2022-11-21 23:01:15,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:01:15,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:01:15,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:01:15,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:01:15,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,049 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 60 [2022-11-21 23:01:15,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:01:15,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:01:15,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:01:15,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:01:15,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,080 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,100 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:01:15,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:01:15,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:01:15,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:01:15,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:01:15,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:01:15,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:01:15,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:01:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 23:01:15,193 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2022-11-21 23:01:15,194 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2022-11-21 23:01:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 23:01:15,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:01:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:01:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 23:01:15,303 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:01:15,305 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:01:15,468 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:01:15,507 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:01:15,508 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 23:01:15,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:01:15 BoogieIcfgContainer [2022-11-21 23:01:15,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:01:15,527 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:01:15,528 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:01:15,537 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:01:15,538 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:01:15" (1/1) ... [2022-11-21 23:01:15,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:01:15,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:01:15,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2022-11-21 23:01:15,619 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2022-11-21 23:01:15,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-21 23:01:15,621 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:01:15,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:01:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:01:15,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:01:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:01:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2022-11-21 23:01:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2022-11-21 23:01:15,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 23:01:15,955 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:01:15,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:01:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:01:16,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:01:16,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:01:16,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2022-11-21 23:01:16,130 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2022-11-21 23:01:16,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:01:16,130 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2022-11-21 23:01:16,143 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-11-21 23:01:16,173 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:01:16,177 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:01:16,178 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:01:16,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:01:16 ImpRootNode [2022-11-21 23:01:16,181 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:01:16,189 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:01:16,189 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:01:16,189 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:01:16,190 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:01:15" (3/4) ... [2022-11-21 23:01:16,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:01:16,204 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2022-11-21 23:01:16,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-21 23:01:16,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-21 23:01:16,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 23:01:16,209 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:01:16,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:01:16,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:01:16,278 INFO L158 Benchmark]: Toolchain (without parser) took 1550.69ms. Allocated memory is still 127.9MB. Free memory was 85.2MB in the beginning and 88.6MB in the end (delta: -3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:01:16,278 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 52.8MB in the beginning and 52.6MB in the end (delta: 189.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:01:16,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.10ms. Allocated memory is still 127.9MB. Free memory was 84.9MB in the beginning and 75.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 23:01:16,280 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.96ms. Allocated memory is still 127.9MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:01:16,284 INFO L158 Benchmark]: Boogie Preprocessor took 50.99ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 23:01:16,284 INFO L158 Benchmark]: RCFGBuilder took 423.20ms. Allocated memory is still 127.9MB. Free memory was 72.0MB in the beginning and 57.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 23:01:16,284 INFO L158 Benchmark]: CodeCheck took 654.12ms. Allocated memory is still 127.9MB. Free memory was 57.7MB in the beginning and 91.6MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:01:16,285 INFO L158 Benchmark]: Witness Printer took 81.23ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 88.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 23:01:16,287 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 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 6 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 34]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 98.6MB. Free memory was 52.8MB in the beginning and 52.6MB in the end (delta: 189.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.10ms. Allocated memory is still 127.9MB. Free memory was 84.9MB in the beginning and 75.2MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.96ms. Allocated memory is still 127.9MB. Free memory was 75.2MB in the beginning and 73.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.99ms. Allocated memory is still 127.9MB. Free memory was 73.5MB in the beginning and 72.0MB in the end (delta: 1.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 423.20ms. Allocated memory is still 127.9MB. Free memory was 72.0MB in the beginning and 57.7MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 654.12ms. Allocated memory is still 127.9MB. Free memory was 57.7MB in the beginning and 91.6MB in the end (delta: -34.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 81.23ms. Allocated memory is still 127.9MB. Free memory was 91.6MB in the beginning and 88.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 23:01:16,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e59a15a-ed83-4807-b459-985f7b6fc8cf/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE