./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i --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_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/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_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/config/KojakReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/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_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/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 dfd396dadb88a7fd8fc176bc0a74b515ffc14f5d6ea4d1c05c5923385b1fd956 --- 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 23:37:52,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 23:37:52,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 23:37:52,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 23:37:52,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 23:37:52,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 23:37:52,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 23:37:52,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 23:37:52,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 23:37:52,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 23:37:52,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 23:37:52,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 23:37:52,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 23:37:52,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 23:37:52,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 23:37:52,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 23:37:52,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 23:37:52,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 23:37:52,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 23:37:52,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 23:37:52,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 23:37:52,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 23:37:52,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 23:37:52,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 23:37:52,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 23:37:52,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 23:37:52,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 23:37:52,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 23:37:52,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 23:37:52,148 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 23:37:52,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 23:37:52,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 23:37:52,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 23:37:52,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 23:37:52,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 23:37:52,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 23:37:52,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 23:37:52,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 23:37:52,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 23:37:52,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 23:37:52,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 23:37:52,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/config/svcomp-Overflow-64bit-Kojak_Default.epf [2022-11-21 23:37:52,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 23:37:52,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 23:37:52,203 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 23:37:52,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-21 23:37:52,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 23:37:52,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 23:37:52,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 23:37:52,205 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 23:37:52,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 23:37:52,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 23:37:52,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 23:37:52,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 23:37:52,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 23:37:52,212 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 23:37:52,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 23:37:52,212 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 23:37:52,213 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 23:37:52,213 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-21 23:37:52,213 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-21 23:37:52,213 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 23:37:52,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:37:52,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 23:37:52,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 23:37:52,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 23:37:52,214 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-21 23:37:52,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 23:37:52,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 23:37:52,215 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_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfd396dadb88a7fd8fc176bc0a74b515ffc14f5d6ea4d1c05c5923385b1fd956 [2022-11-21 23:37:52,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 23:37:52,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 23:37:52,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 23:37:52,499 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 23:37:52,503 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 23:37:52,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i [2022-11-21 23:37:55,591 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 23:37:56,045 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 23:37:56,046 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_18_good.i [2022-11-21 23:37:56,069 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/data/4ace852ff/04ce0323747142518691bccbe5738607/FLAG19b9f869b [2022-11-21 23:37:56,085 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/data/4ace852ff/04ce0323747142518691bccbe5738607 [2022-11-21 23:37:56,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 23:37:56,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 23:37:56,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 23:37:56,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 23:37:56,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 23:37:56,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:37:56" (1/1) ... [2022-11-21 23:37:56,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36011322 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:56, skipping insertion in model container [2022-11-21 23:37:56,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 11:37:56" (1/1) ... [2022-11-21 23:37:56,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 23:37:56,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 23:37:56,567 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:37:57,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:37:57,216 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 23:37:57,256 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 23:37:57,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 23:37:57,491 INFO L208 MainTranslator]: Completed translation [2022-11-21 23:37:57,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57 WrapperNode [2022-11-21 23:37:57,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 23:37:57,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 23:37:57,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 23:37:57,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 23:37:57,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,528 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,563 INFO L138 Inliner]: procedures = 502, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 75 [2022-11-21 23:37:57,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 23:37:57,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 23:37:57,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 23:37:57,565 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 23:37:57,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,580 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 23:37:57,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 23:37:57,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 23:37:57,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 23:37:57,596 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 11:37:57" (1/1) ... [2022-11-21 23:37:57,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-21 23:37:57,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/z3 [2022-11-21 23:37:57,652 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-21 23:37:57,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-21 23:37:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-21 23:37:57,704 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-21 23:37:57,705 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 23:37:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 23:37:57,708 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 23:37:57,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 23:37:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 23:37:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 23:37:57,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 23:37:57,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 23:37:57,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 23:37:57,710 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 23:37:57,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 23:37:58,004 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 23:37:58,006 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 23:37:58,245 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 23:37:58,272 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 23:37:58,272 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 23:37:58,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:37:58 BoogieIcfgContainer [2022-11-21 23:37:58,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 23:37:58,276 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-21 23:37:58,276 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-21 23:37:58,286 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-21 23:37:58,286 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:37:58" (1/1) ... [2022-11-21 23:37:58,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 23:37:58,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:37:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2022-11-21 23:37:58,369 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2022-11-21 23:37:58,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 23:37:58,373 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:37:58,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:37:58,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:37:58,727 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 23:37:58,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:37:58,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2022-11-21 23:37:58,790 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-11-21 23:37:58,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 23:37:58,791 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:37:58,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:37:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:37:58,932 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 23:37:58,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:37:58,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 29 states and 35 transitions. [2022-11-21 23:37:58,986 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-11-21 23:37:58,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 23:37:58,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:37:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:37:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:37:59,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 23:37:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:37:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 30 transitions. [2022-11-21 23:37:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2022-11-21 23:37:59,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 23:37:59,145 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:37:59,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:37:59,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:37:59,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 23:37:59,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:37:59,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 29 transitions. [2022-11-21 23:37:59,251 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2022-11-21 23:37:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 23:37:59,251 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-21 23:37:59,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 23:37:59,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 23:37:59,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-21 23:37:59,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-21 23:37:59,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 28 transitions. [2022-11-21 23:37:59,396 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-21 23:37:59,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 23:37:59,398 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2022-11-21 23:37:59,407 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-21 23:37:59,445 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:37:59,450 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:37:59,450 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:37:59,450 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-21 23:37:59,450 INFO L560 CodeCheckObserver]: Invariant with dag size 7 [2022-11-21 23:37:59,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 11:37:59 ImpRootNode [2022-11-21 23:37:59,468 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-21 23:37:59,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 23:37:59,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 23:37:59,469 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 23:37:59,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 11:37:58" (3/4) ... [2022-11-21 23:37:59,473 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 23:37:59,482 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 23:37:59,482 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-21 23:37:59,493 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-21 23:37:59,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 23:37:59,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 23:37:59,494 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 23:37:59,532 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/bin/ukojak-jW3SillKbg/witness.graphml [2022-11-21 23:37:59,532 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 23:37:59,533 INFO L158 Benchmark]: Toolchain (without parser) took 3443.65ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 81.2MB in the end (delta: 67.0MB). Peak memory consumption was 66.9MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,533 INFO L158 Benchmark]: CDTParser took 1.44ms. Allocated memory is still 125.8MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 23:37:59,534 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1399.08ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 85.9MB in the end (delta: 62.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.61ms. Allocated memory is still 182.5MB. Free memory was 85.9MB in the beginning and 83.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,535 INFO L158 Benchmark]: Boogie Preprocessor took 29.81ms. Allocated memory is still 182.5MB. Free memory was 83.0MB in the beginning and 81.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,535 INFO L158 Benchmark]: RCFGBuilder took 680.28ms. Allocated memory is still 182.5MB. Free memory was 81.1MB in the beginning and 143.1MB in the end (delta: -62.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,536 INFO L158 Benchmark]: CodeCheck took 1192.15ms. Allocated memory is still 182.5MB. Free memory was 143.1MB in the beginning and 84.3MB in the end (delta: 58.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,536 INFO L158 Benchmark]: Witness Printer took 63.62ms. Allocated memory is still 182.5MB. Free memory was 84.3MB in the beginning and 81.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 23:37:59,542 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, 156 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 74 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 412 GetRequests, 395 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 91 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1569]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1588]: 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: 1549]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1548]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1603]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1579]: Loop Invariant Derived loop invariant: data + 2 <= 0 && 0 <= data + 2 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.44ms. Allocated memory is still 125.8MB. Free memory is still 80.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1399.08ms. Allocated memory is still 182.5MB. Free memory was 148.2MB in the beginning and 85.9MB in the end (delta: 62.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.61ms. Allocated memory is still 182.5MB. Free memory was 85.9MB in the beginning and 83.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.81ms. Allocated memory is still 182.5MB. Free memory was 83.0MB in the beginning and 81.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.28ms. Allocated memory is still 182.5MB. Free memory was 81.1MB in the beginning and 143.1MB in the end (delta: -62.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1192.15ms. Allocated memory is still 182.5MB. Free memory was 143.1MB in the beginning and 84.3MB in the end (delta: 58.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Witness Printer took 63.62ms. Allocated memory is still 182.5MB. Free memory was 84.3MB in the beginning and 81.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-21 23:37:59,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74ed2c98-67d4-42e3-a677-48ed3d1e65c4/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