./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/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_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/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_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/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 8ad2efe59e3f86e595402afd01cd8c70704bdc6429bd174caf4e3dd951c53bc9 --- 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 23:25:19,685 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:25:19,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:25:19,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:25:19,732 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:25:19,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:25:19,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:25:19,740 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:25:19,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:25:19,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:25:19,743 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:25:19,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:25:19,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:25:19,746 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:25:19,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:25:19,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:25:19,754 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:25:19,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:25:19,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:25:19,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:25:19,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:25:19,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:25:19,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:25:19,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:25:19,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:25:19,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:25:19,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:25:19,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:25:19,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:25:19,785 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:25:19,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:25:19,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:25:19,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:25:19,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:25:19,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:25:19,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:25:19,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:25:19,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:25:19,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:25:19,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:25:19,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:25:19,793 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:25:19,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:25:19,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:25:19,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:25:19,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:25:19,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:25:19,837 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:25:19,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:25:19,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:25:19,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:25:19,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:25:19,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:25:19,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:25:19,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:25:19,840 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:25:19,840 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:25:19,840 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:25:19,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:25:19,841 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:25:19,841 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:25:19,841 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:25:19,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:25:19,842 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:25:19,842 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:25:19,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:25:19,842 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:25:19,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:25:19,843 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:25:19,843 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_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ad2efe59e3f86e595402afd01cd8c70704bdc6429bd174caf4e3dd951c53bc9 [2022-11-21 23:25:20,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:25:20,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:25:20,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:25:20,187 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:25:20,188 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:25:20,190 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_good.i [2022-11-21 23:25:23,391 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:25:23,793 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:25:23,794 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_52_good.i [2022-11-21 23:25:23,824 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/data/3b6c60197/5a61589906b74f27b507f35af0071527/FLAG1058cd7d0 [2022-11-21 23:25:23,844 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/data/3b6c60197/5a61589906b74f27b507f35af0071527 [2022-11-21 23:25:23,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:25:23,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:25:23,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:25:23,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:25:23,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:25:23,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:25:23" (1/1) ... [2022-11-21 23:25:23,859 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1fb623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:23, skipping insertion in model container [2022-11-21 23:25:23,859 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:25:23" (1/1) ... [2022-11-21 23:25:23,867 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:25:23,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:25:24,376 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:25:24,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:25:24,952 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:25:24,973 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:25:25,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:25:25,208 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:25:25,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25 WrapperNode [2022-11-21 23:25:25,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:25:25,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:25:25,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:25:25,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:25:25,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,268 INFO L138 Inliner]: procedures = 505, calls = 63, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 78 [2022-11-21 23:25:25,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:25:25,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:25:25,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:25:25,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:25:25,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,292 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,294 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:25:25,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:25:25,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:25:25,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:25:25,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:25:25,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:25:25,356 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:25:25,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:25:25,405 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-21 23:25:25,405 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-21 23:25:25,406 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 23:25:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 23:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:25:25,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:25:25,407 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 23:25:25,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:25:25,640 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:25:25,642 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:25:25,806 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:25:25,923 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:25:25,923 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 23:25:25,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:25:25 BoogieIcfgContainer [2022-11-21 23:25:25,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:25:25,936 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:25:25,936 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:25:25,947 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:25:25,948 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:25:25" (1/1) ... [2022-11-21 23:25:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:25:26,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:25:26,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2022-11-21 23:25:26,041 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-21 23:25:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 23:25:26,045 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:25:26,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:25:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:25:26,383 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 23:25:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:25:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2022-11-21 23:25:26,437 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-11-21 23:25:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 23:25:26,437 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:25:26,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:25:26,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:25:26,560 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 23:25:26,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:25:26,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2022-11-21 23:25:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-21 23:25:26,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:25:26,605 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:25:26,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:25:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:25:26,907 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 23:25:26,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:25:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2022-11-21 23:25:26,986 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-21 23:25:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:25:26,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:25:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:25:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:25:27,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 23:25:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:25:27,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2022-11-21 23:25:27,240 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-21 23:25:27,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:25:27,241 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2022-11-21 23:25:27,249 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 23:25:27,289 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:25:27,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:25:27 ImpRootNode [2022-11-21 23:25:27,296 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:25:27,297 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:25:27,298 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:25:27,298 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:25:27,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:25:25" (3/4) ... [2022-11-21 23:25:27,302 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:25:27,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 23:25:27,308 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-21 23:25:27,317 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-21 23:25:27,317 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-21 23:25:27,318 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 23:25:27,318 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:25:27,381 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:25:27,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:25:27,389 INFO L158 Benchmark]: Toolchain (without parser) took 3536.25ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 98.3MB in the beginning and 84.7MB in the end (delta: 13.7MB). Peak memory consumption was 72.7MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,389 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 146.8MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:25:27,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1357.04ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 98.3MB in the beginning and 133.5MB in the end (delta: -35.2MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.66ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 130.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,391 INFO L158 Benchmark]: Boogie Preprocessor took 30.07ms. Allocated memory is still 203.4MB. Free memory was 130.1MB in the beginning and 128.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,394 INFO L158 Benchmark]: RCFGBuilder took 627.61ms. Allocated memory is still 203.4MB. Free memory was 128.5MB in the beginning and 108.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,394 INFO L158 Benchmark]: CodeCheck took 1360.82ms. Allocated memory is still 203.4MB. Free memory was 108.3MB in the beginning and 87.8MB in the end (delta: 20.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,395 INFO L158 Benchmark]: Witness Printer took 89.29ms. Allocated memory is still 203.4MB. Free memory was 87.8MB in the beginning and 84.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 23:25:27,396 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 3 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 90 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 36 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 81 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 36 mSDtfsCounter, 81 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 274 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1599]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1599]: 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: 1574]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 146.8MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1357.04ms. Allocated memory was 146.8MB in the beginning and 203.4MB in the end (delta: 56.6MB). Free memory was 98.3MB in the beginning and 133.5MB in the end (delta: -35.2MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.66ms. Allocated memory is still 203.4MB. Free memory was 133.5MB in the beginning and 130.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.07ms. Allocated memory is still 203.4MB. Free memory was 130.1MB in the beginning and 128.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 627.61ms. Allocated memory is still 203.4MB. Free memory was 128.5MB in the beginning and 108.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 1360.82ms. Allocated memory is still 203.4MB. Free memory was 108.3MB in the beginning and 87.8MB in the end (delta: 20.5MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 89.29ms. Allocated memory is still 203.4MB. Free memory was 87.8MB in the beginning and 84.7MB 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 23:25:27,421 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b7f6c303-f11a-4a56-890a-e44ce05ff1a7/bin/ukojak-jW3SillKbg/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