./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.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_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 734d50c80d6cf17c396db83d36fca602dbddd3c09ab595026555aa5c7a4c0a2e --- 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 17:28:59,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:28:59,150 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:28:59,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:28:59,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:28:59,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:28:59,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:28:59,185 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:28:59,186 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:28:59,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:28:59,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:28:59,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:28:59,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:28:59,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:28:59,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:28:59,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:28:59,199 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:28:59,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:28:59,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:28:59,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:28:59,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:28:59,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:28:59,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:28:59,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:28:59,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:28:59,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:28:59,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:28:59,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:28:59,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:28:59,237 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:28:59,237 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:28:59,238 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:28:59,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:28:59,249 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:28:59,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:28:59,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:28:59,252 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:28:59,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:28:59,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:28:59,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:28:59,272 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:28:59,273 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 17:28:59,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:28:59,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:28:59,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:28:59,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:28:59,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:28:59,324 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:28:59,325 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:28:59,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:28:59,325 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:28:59,326 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:28:59,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 17:28:59,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:28:59,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:28:59,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:28:59,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:28:59,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:28:59,327 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 17:28:59,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:28:59,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:28:59,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:28:59,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:28:59,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:28:59,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:28:59,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:59,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:28:59,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:28:59,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:28:59,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:28:59,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:28:59,331 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:28:59,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:28:59,331 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:28:59,332 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_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 734d50c80d6cf17c396db83d36fca602dbddd3c09ab595026555aa5c7a4c0a2e [2022-11-21 17:28:59,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:28:59,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:28:59,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:28:59,673 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:28:59,687 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:28:59,689 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i [2022-11-21 17:29:02,772 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:03,176 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:03,177 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i [2022-11-21 17:29:03,199 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data/8347f2f5c/20cd27b3984646b9affdbb0c0b573ab6/FLAG463da7572 [2022-11-21 17:29:03,215 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data/8347f2f5c/20cd27b3984646b9affdbb0c0b573ab6 [2022-11-21 17:29:03,217 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:03,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:03,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:03,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:03,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:03,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:03" (1/1) ... [2022-11-21 17:29:03,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d79d9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:03, skipping insertion in model container [2022-11-21 17:29:03,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:03" (1/1) ... [2022-11-21 17:29:03,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:03,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:03,672 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:29:04,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:04,234 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:04,257 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:29:04,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:04,480 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:04,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04 WrapperNode [2022-11-21 17:29:04,483 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:04,484 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:04,484 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:04,484 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:04,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,574 INFO L138 Inliner]: procedures = 500, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-21 17:29:04,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:04,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:04,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:04,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:04,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:04,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:04,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:04,634 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:04,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (1/1) ... [2022-11-21 17:29:04,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:04,683 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:04,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 17:29:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:29:04,723 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:29:04,723 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-21 17:29:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:04,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:29:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 17:29:04,922 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:04,937 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:05,067 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:29:05,073 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:29:05,073 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:29:05,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:05 BoogieIcfgContainer [2022-11-21 17:29:05,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:29:05,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:29:05,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:29:05,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:29:05,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:03" (1/3) ... [2022-11-21 17:29:05,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cb3e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:05, skipping insertion in model container [2022-11-21 17:29:05,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:04" (2/3) ... [2022-11-21 17:29:05,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78cb3e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:05, skipping insertion in model container [2022-11-21 17:29:05,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:05" (3/3) ... [2022-11-21 17:29:05,084 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i [2022-11-21 17:29:05,105 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:29:05,105 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-21 17:29:05,185 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:29:05,197 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@590ccb15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:29:05,198 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-21 17:29:05,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-21 17:29:05,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 17:29:05,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:05,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:05,234 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:29:05,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1996056410, now seen corresponding path program 1 times [2022-11-21 17:29:05,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:05,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707317507] [2022-11-21 17:29:05,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:05,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:05,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:29:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:05,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:29:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:05,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:29:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:29:05,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:05,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707317507] [2022-11-21 17:29:05,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707317507] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:29:05,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621681510] [2022-11-21 17:29:05,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:05,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:29:05,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:05,772 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:29:05,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 17:29:05,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:05,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:29:05,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 17:29:05,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:29:05,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621681510] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:05,970 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:29:05,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 17:29:05,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171913388] [2022-11-21 17:29:05,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:05,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:29:05,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:06,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:29:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:29:06,013 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:29:06,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:06,056 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2022-11-21 17:29:06,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:29:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-11-21 17:29:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:06,067 INFO L225 Difference]: With dead ends: 44 [2022-11-21 17:29:06,067 INFO L226 Difference]: Without dead ends: 30 [2022-11-21 17:29:06,070 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:29:06,074 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:06,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 74 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:29:06,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-21 17:29:06,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-11-21 17:29:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.2) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-21 17:29:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-21 17:29:06,134 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 21 [2022-11-21 17:29:06,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:06,136 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-21 17:29:06,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:29:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-21 17:29:06,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-21 17:29:06,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:06,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:06,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:06,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-21 17:29:06,347 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:29:06,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:06,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1748206499, now seen corresponding path program 1 times [2022-11-21 17:29:06,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:06,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166548071] [2022-11-21 17:29:06,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:06,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-21 17:29:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:06,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-21 17:29:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-21 17:29:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:06,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 17:29:06,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 17:29:06,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166548071] [2022-11-21 17:29:06,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166548071] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 17:29:06,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242901644] [2022-11-21 17:29:06,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:06,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:29:06,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:06,495 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 17:29:06,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 17:29:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:29:06,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-21 17:29:06,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:29:06,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-21 17:29:06,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:29:06,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242901644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:29:06,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-21 17:29:06,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-21 17:29:06,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947729575] [2022-11-21 17:29:06,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:29:06,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 17:29:06,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 17:29:06,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 17:29:06,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:29:06,675 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:29:06,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:29:06,695 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-21 17:29:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 17:29:06,696 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-11-21 17:29:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:29:06,698 INFO L225 Difference]: With dead ends: 31 [2022-11-21 17:29:06,698 INFO L226 Difference]: Without dead ends: 23 [2022-11-21 17:29:06,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:29:06,702 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 3 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:29:06,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 46 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 17:29:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-21 17:29:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-21 17:29:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-21 17:29:06,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-11-21 17:29:06,714 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 22 [2022-11-21 17:29:06,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:29:06,715 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-11-21 17:29:06,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-21 17:29:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-11-21 17:29:06,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 17:29:06,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:29:06,716 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 17:29:06,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 17:29:06,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 17:29:06,924 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-21 17:29:06,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:29:06,925 INFO L85 PathProgramCache]: Analyzing trace with hash 268010891, now seen corresponding path program 1 times [2022-11-21 17:29:06,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:29:06,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479762533] [2022-11-21 17:29:06,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:29:06,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:29:06,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:06,965 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:29:06,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:29:07,030 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:29:07,030 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:29:07,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-21 17:29:07,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-21 17:29:07,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 17:29:07,038 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-21 17:29:07,043 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:29:07,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:29:07 BoogieIcfgContainer [2022-11-21 17:29:07,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:29:07,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:29:07,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:29:07,077 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:29:07,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:05" (3/4) ... [2022-11-21 17:29:07,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:29:07,081 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:29:07,082 INFO L158 Benchmark]: Toolchain (without parser) took 3863.20ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 54.3MB in the end (delta: 79.0MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-21 17:29:07,083 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:07,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1262.56ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 123.8MB in the end (delta: 9.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-21 17:29:07,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.33ms. Allocated memory is still 165.7MB. Free memory was 123.8MB in the beginning and 120.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:29:07,085 INFO L158 Benchmark]: Boogie Preprocessor took 56.80ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 119.7MB in the end (delta: 933.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:07,085 INFO L158 Benchmark]: RCFGBuilder took 442.30ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 126.7MB in the end (delta: -6.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-11-21 17:29:07,086 INFO L158 Benchmark]: TraceAbstraction took 1998.55ms. Allocated memory is still 165.7MB. Free memory was 125.6MB in the beginning and 55.4MB in the end (delta: 70.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. [2022-11-21 17:29:07,086 INFO L158 Benchmark]: Witness Printer took 4.86ms. Allocated memory is still 165.7MB. Free memory was 55.4MB in the beginning and 54.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:07,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 95.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1262.56ms. Allocated memory is still 165.7MB. Free memory was 133.3MB in the beginning and 123.8MB in the end (delta: 9.5MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.33ms. Allocated memory is still 165.7MB. Free memory was 123.8MB in the beginning and 120.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.80ms. Allocated memory is still 165.7MB. Free memory was 120.7MB in the beginning and 119.7MB in the end (delta: 933.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 442.30ms. Allocated memory is still 165.7MB. Free memory was 119.7MB in the beginning and 126.7MB in the end (delta: -6.9MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1998.55ms. Allocated memory is still 165.7MB. Free memory was 125.6MB in the beginning and 55.4MB in the end (delta: 70.3MB). Peak memory consumption was 71.3MB. Max. memory is 16.1GB. * Witness Printer took 4.86ms. Allocated memory is still 165.7MB. Free memory was 55.4MB in the beginning and 54.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483649:2147483652}, argv={2147483649:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_preinc_11_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] RET globalReturnsTrue() VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1566] COND TRUE globalReturnsTrue() [L1569] ++data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 120 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 43 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 77 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 209 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 17:29:07,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 734d50c80d6cf17c396db83d36fca602dbddd3c09ab595026555aa5c7a4c0a2e --- 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 17:29:09,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:29:09,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:29:09,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:29:09,875 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:29:09,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:29:09,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:29:09,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:29:09,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:29:09,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:29:09,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:29:09,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:29:09,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:29:09,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:29:09,905 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:29:09,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:29:09,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:29:09,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:29:09,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:29:09,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:29:09,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:29:09,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:29:09,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:29:09,937 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:29:09,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:29:09,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:29:09,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:29:09,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:29:09,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:29:09,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:29:09,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:29:09,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:29:09,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:29:09,957 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:29:09,959 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:29:09,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:29:09,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:29:09,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:29:09,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:29:09,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:29:09,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:29:09,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-21 17:29:10,011 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:29:10,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:29:10,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:29:10,014 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:29:10,015 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:29:10,016 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:29:10,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:29:10,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:29:10,017 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:29:10,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:29:10,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:29:10,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:29:10,019 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:29:10,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:29:10,020 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:29:10,020 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:29:10,020 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:29:10,020 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:29:10,021 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:29:10,021 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:29:10,021 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:29:10,021 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:29:10,022 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:29:10,022 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:10,022 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:29:10,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:29:10,023 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:29:10,023 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:29:10,023 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:29:10,023 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:29:10,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:29:10,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:29:10,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:29:10,025 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 734d50c80d6cf17c396db83d36fca602dbddd3c09ab595026555aa5c7a4c0a2e [2022-11-21 17:29:10,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:29:10,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:29:10,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:29:10,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:29:10,464 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:29:10,466 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i [2022-11-21 17:29:13,486 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:29:14,018 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:29:14,018 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i [2022-11-21 17:29:14,050 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data/7e9c38925/280f375f516f43f084b9c1b537b21a59/FLAG382bdaa99 [2022-11-21 17:29:14,082 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/data/7e9c38925/280f375f516f43f084b9c1b537b21a59 [2022-11-21 17:29:14,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:29:14,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:29:14,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:14,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:29:14,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:29:14,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:14" (1/1) ... [2022-11-21 17:29:14,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f7c219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:14, skipping insertion in model container [2022-11-21 17:29:14,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:29:14" (1/1) ... [2022-11-21 17:29:14,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:29:14,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:29:14,683 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:29:15,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:15,300 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:29:15,321 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-21 17:29:15,379 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:29:15,511 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:29:15,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15 WrapperNode [2022-11-21 17:29:15,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:29:15,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:15,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:29:15,514 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:29:15,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,575 INFO L138 Inliner]: procedures = 505, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-11-21 17:29:15,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:29:15,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:29:15,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:29:15,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:29:15,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,628 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,631 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:29:15,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:29:15,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:29:15,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:29:15,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (1/1) ... [2022-11-21 17:29:15,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:29:15,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:29:15,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:29:15,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:29:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-21 17:29:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-21 17:29:15,744 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-21 17:29:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-11-21 17:29:15,744 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-11-21 17:29:15,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 17:29:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 17:29:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 17:29:15,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:29:15,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:29:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 17:29:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-21 17:29:15,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-21 17:29:15,972 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:29:15,974 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:29:16,200 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:29:16,206 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:29:16,211 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 17:29:16,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:16 BoogieIcfgContainer [2022-11-21 17:29:16,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:29:16,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:29:16,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:29:16,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:29:16,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:29:14" (1/3) ... [2022-11-21 17:29:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039ea02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:16, skipping insertion in model container [2022-11-21 17:29:16,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:29:15" (2/3) ... [2022-11-21 17:29:16,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039ea02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:29:16, skipping insertion in model container [2022-11-21 17:29:16,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:16" (3/3) ... [2022-11-21 17:29:16,233 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_11_bad.i [2022-11-21 17:29:16,253 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:29:16,253 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-21 17:29:16,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5039ea02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:29:16, skipping insertion in model container [2022-11-21 17:29:16,255 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:29:16,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:29:16,256 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:29:16,256 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:29:16,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:29:16" (3/3) ... [2022-11-21 17:29:16,260 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 17:29:16,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-21 17:29:16,268 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure globalReturnsTrue [2022-11-21 17:29:16,272 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2022-11-21 17:29:16,272 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-21 17:29:16,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-21 17:29:16,273 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 17:29:16,314 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 17:29:16,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:29:16,316 INFO L158 Benchmark]: Toolchain (without parser) took 2226.53ms. Allocated memory is still 86.0MB. Free memory was 60.4MB in the beginning and 39.6MB in the end (delta: 20.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,316 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:29:16,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1419.09ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 41.2MB in the end (delta: 18.9MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.55ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 38.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,317 INFO L158 Benchmark]: Boogie Preprocessor took 59.59ms. Allocated memory is still 86.0MB. Free memory was 38.1MB in the beginning and 59.3MB in the end (delta: -21.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,318 INFO L158 Benchmark]: RCFGBuilder took 565.29ms. Allocated memory is still 86.0MB. Free memory was 58.8MB in the beginning and 45.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,318 INFO L158 Benchmark]: TraceAbstraction took 39.02ms. Allocated memory is still 86.0MB. Free memory was 44.5MB in the beginning and 42.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,319 INFO L158 Benchmark]: Witness Printer took 58.38ms. Allocated memory is still 86.0MB. Free memory was 42.2MB in the beginning and 39.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 17:29:16,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 71.3MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1419.09ms. Allocated memory is still 86.0MB. Free memory was 60.1MB in the beginning and 41.2MB in the end (delta: 18.9MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.55ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 38.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.59ms. Allocated memory is still 86.0MB. Free memory was 38.1MB in the beginning and 59.3MB in the end (delta: -21.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 565.29ms. Allocated memory is still 86.0MB. Free memory was 58.8MB in the beginning and 45.0MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 39.02ms. Allocated memory is still 86.0MB. Free memory was 44.5MB in the beginning and 42.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 58.38ms. Allocated memory is still 86.0MB. Free memory was 42.2MB in the beginning and 39.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-21 17:29:16,345 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa57033d-69a1-456b-a723-788a964b350e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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