./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/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_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/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_7a149315-8b29-48d3-b8ab-386df9176fff/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 c3f973fa7d7be30fc3df78d2bddf09b810e00b412f10b5f2e2735413d8d4f793 --- 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 19:55:06,065 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:55:06,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:55:06,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:55:06,081 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:55:06,081 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:55:06,082 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:55:06,083 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:55:06,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:55:06,085 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:55:06,086 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:55:06,087 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:55:06,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:55:06,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:55:06,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:55:06,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:55:06,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:55:06,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:55:06,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:55:06,093 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:55:06,094 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:55:06,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:55:06,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:55:06,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:55:06,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:55:06,100 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:55:06,100 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:55:06,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:55:06,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:55:06,101 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:55:06,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:55:06,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:55:06,103 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:55:06,103 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:55:06,104 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:55:06,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:55:06,105 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:55:06,105 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:55:06,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:55:06,106 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:55:06,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:55:06,107 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-12-14 19:55:06,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:55:06,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:55:06,125 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 19:55:06,125 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 19:55:06,125 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:55:06,125 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:55:06,126 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 19:55:06,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 19:55:06,127 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:55:06,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 19:55:06,127 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:55:06,127 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:55:06,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:55:06,127 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:55:06,127 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:55:06,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:55:06,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 19:55:06,128 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:55:06,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:55:06,128 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 19:55:06,128 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_7a149315-8b29-48d3-b8ab-386df9176fff/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c3f973fa7d7be30fc3df78d2bddf09b810e00b412f10b5f2e2735413d8d4f793 [2022-12-14 19:55:06,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:55:06,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:55:06,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:55:06,312 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:55:06,312 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:55:06,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i [2022-12-14 19:55:08,933 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:55:09,168 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:55:09,168 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_32_good.i [2022-12-14 19:55:09,180 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/data/def7b3162/1356cada371a43388bcb91469a393b92/FLAGb86aa3d20 [2022-12-14 19:55:09,191 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/data/def7b3162/1356cada371a43388bcb91469a393b92 [2022-12-14 19:55:09,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:55:09,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:55:09,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:55:09,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:55:09,198 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:55:09,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:55:09" (1/1) ... [2022-12-14 19:55:09,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@268d47e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:09, skipping insertion in model container [2022-12-14 19:55:09,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:55:09" (1/1) ... [2022-12-14 19:55:09,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:55:09,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:55:09,473 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 19:55:09,816 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 19:55:09,821 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:55:09,822 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:55:09,824 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:55:09,825 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:55:09,848 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 19:55:09,852 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 19:55:09,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:55:09,862 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:55:09,877 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 19:55:09,907 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 19:55:09,909 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:55:09,909 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 19:55:09,911 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:55:09,912 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 19:55:09,917 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 19:55:09,919 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 19:55:09,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:55:10,019 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:55:10,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10 WrapperNode [2022-12-14 19:55:10,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:55:10,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:55:10,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:55:10,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:55:10,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,058 INFO L138 Inliner]: procedures = 502, calls = 79, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 89 [2022-12-14 19:55:10,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:55:10,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:55:10,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:55:10,059 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:55:10,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:55:10,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:55:10,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:55:10,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:55:10,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:55:10,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:55:10,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:55:10,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:55:10,128 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-14 19:55:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 19:55:10,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 19:55:10,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:55:10,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:55:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 19:55:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 19:55:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 19:55:10,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 19:55:10,247 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:55:10,248 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:55:10,378 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:55:10,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:55:10,403 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 19:55:10,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:10 BoogieIcfgContainer [2022-12-14 19:55:10,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:55:10,406 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:55:10,406 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:55:10,413 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:55:10,414 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:10" (1/1) ... [2022-12-14 19:55:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:55:10,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:55:10,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-12-14 19:55:10,459 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-12-14 19:55:10,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 19:55:10,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:55:10,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:55:10,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:55:10,730 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 19:55:10,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:55:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2022-12-14 19:55:10,758 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-12-14 19:55:10,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 19:55:10,758 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:55:10,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:55:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:55:10,856 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 19:55:10,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:55:10,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2022-12-14 19:55:10,892 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-12-14 19:55:10,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 19:55:10,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:55:10,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:55:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:55:10,941 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 19:55:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:55:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 24 states and 29 transitions. [2022-12-14 19:55:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-12-14 19:55:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 19:55:10,966 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:55:10,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:55:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:55:11,127 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 19:55:11,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:55:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2022-12-14 19:55:11,212 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2022-12-14 19:55:11,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-14 19:55:11,212 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:55:11,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:55:11,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:55:11,404 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 19:55:11,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:55:11,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 28 transitions. [2022-12-14 19:55:11,501 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-12-14 19:55:11,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 19:55:11,502 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-12-14 19:55:11,507 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 19:55:11,540 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 19:55:11,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 07:55:11 ImpRootNode [2022-12-14 19:55:11,544 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 19:55:11,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 19:55:11,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 19:55:11,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 19:55:11,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:55:10" (3/4) ... [2022-12-14 19:55:11,548 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 19:55:11,552 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-14 19:55:11,552 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-14 19:55:11,554 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-12-14 19:55:11,555 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 19:55:11,555 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-14 19:55:11,555 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 19:55:11,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 19:55:11,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 19:55:11,586 INFO L158 Benchmark]: Toolchain (without parser) took 2391.77ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 94.4MB in the beginning and 69.2MB in the end (delta: 25.2MB). Peak memory consumption was 69.3MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,586 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 95.5MB in the end (delta: 22.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:55:11,587 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.90ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 121.6MB in the end (delta: -27.7MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,587 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.60ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 118.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,587 INFO L158 Benchmark]: Boogie Preprocessor took 18.47ms. Allocated memory is still 172.0MB. Free memory was 118.4MB in the beginning and 116.3MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,588 INFO L158 Benchmark]: RCFGBuilder took 328.08ms. Allocated memory is still 172.0MB. Free memory was 116.3MB in the beginning and 98.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,588 INFO L158 Benchmark]: CodeCheck took 1137.69ms. Allocated memory is still 172.0MB. Free memory was 98.5MB in the beginning and 72.3MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,588 INFO L158 Benchmark]: Witness Printer took 41.34ms. Allocated memory is still 172.0MB. Free memory was 72.3MB in the beginning and 69.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 19:55:11,591 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, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 168 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 91 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 84 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 426 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 129 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 2/2 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: 1562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1562]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: 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: 1613]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 130.0MB. Free memory was 95.5MB in the beginning and 95.5MB in the end (delta: 22.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.90ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 93.9MB in the beginning and 121.6MB in the end (delta: -27.7MB). Peak memory consumption was 62.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.60ms. Allocated memory is still 172.0MB. Free memory was 121.6MB in the beginning and 118.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.47ms. Allocated memory is still 172.0MB. Free memory was 118.4MB in the beginning and 116.3MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 328.08ms. Allocated memory is still 172.0MB. Free memory was 116.3MB in the beginning and 98.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1137.69ms. Allocated memory is still 172.0MB. Free memory was 98.5MB in the beginning and 72.3MB in the end (delta: 26.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Witness Printer took 41.34ms. Allocated memory is still 172.0MB. Free memory was 72.3MB in the beginning and 69.2MB 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! [2022-12-14 19:55:11,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7a149315-8b29-48d3-b8ab-386df9176fff/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