./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 763425cdfe17b743f6d2e6f0cc6531a5beb662f31314e4267baa9658dd9cd8dd --- 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-4e7fbc6 [2022-11-23 15:11:11,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:11:11,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:11:11,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:11:11,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:11:11,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:11:11,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:11:11,281 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:11:11,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:11:11,289 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:11:11,290 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:11:11,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:11:11,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:11:11,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:11:11,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:11:11,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:11:11,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:11:11,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:11:11,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:11:11,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:11:11,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:11:11,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:11:11,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:11:11,320 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:11:11,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:11:11,330 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:11:11,330 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:11:11,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:11:11,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:11:11,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:11:11,332 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:11:11,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:11:11,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:11:11,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:11:11,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:11:11,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:11:11,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:11:11,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:11:11,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:11:11,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:11:11,339 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:11:11,340 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:11:11,378 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:11:11,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:11:11,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:11:11,380 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:11:11,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:11:11,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:11:11,381 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:11:11,382 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:11:11,382 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:11:11,382 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:11:11,383 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:11:11,383 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:11:11,384 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:11:11,384 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:11:11,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:11:11,384 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:11:11,384 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:11:11,385 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:11:11,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:11:11,386 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:11:11,386 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:11:11,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:11:11,387 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:11:11,387 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:11:11,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:11:11,387 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:11:11,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:11:11,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:11:11,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:11:11,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:11:11,389 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:11:11,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:11,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:11:11,390 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:11:11,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:11:11,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:11:11,390 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:11:11,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:11:11,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:11:11,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:11:11,391 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_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 763425cdfe17b743f6d2e6f0cc6531a5beb662f31314e4267baa9658dd9cd8dd [2022-11-23 15:11:11,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:11:11,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:11:11,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:11:11,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:11:11,674 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:11:11,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i [2022-11-23 15:11:14,761 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:11:15,148 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:11:15,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_63_good.i [2022-11-23 15:11:15,178 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/data/53ccc551f/021b7f0fad9b4eb5bfa58a8bc3a61a10/FLAGe46aa5bb3 [2022-11-23 15:11:15,197 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/data/53ccc551f/021b7f0fad9b4eb5bfa58a8bc3a61a10 [2022-11-23 15:11:15,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:11:15,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:11:15,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:11:15,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:11:15,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:11:15,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:15" (1/1) ... [2022-11-23 15:11:15,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3f7c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:15, skipping insertion in model container [2022-11-23 15:11:15,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:11:15" (1/1) ... [2022-11-23 15:11:15,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:11:15,292 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:11:15,750 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:11:16,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:11:16,420 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:11:16,458 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:11:16,551 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:11:16,744 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:11:16,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16 WrapperNode [2022-11-23 15:11:16,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:11:16,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:11:16,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:11:16,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:11:16,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,817 INFO L138 Inliner]: procedures = 504, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 77 [2022-11-23 15:11:16,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:11:16,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:11:16,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:11:16,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:11:16,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:11:16,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:11:16,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:11:16,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:11:16,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (1/1) ... [2022-11-23 15:11:16,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:11:16,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:11:16,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:11:16,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-23 15:11:16,934 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-23 15:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-23 15:11:16,934 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:11:16,935 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:11:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:11:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:11:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:11:16,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:11:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:11:16,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:11:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:11:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:11:16,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:11:16,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:11:17,141 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:11:17,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:11:17,392 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:11:17,444 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:11:17,444 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:11:17,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:17 BoogieIcfgContainer [2022-11-23 15:11:17,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:11:17,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:11:17,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:11:17,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:11:17,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:11:15" (1/3) ... [2022-11-23 15:11:17,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afd205a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:17, skipping insertion in model container [2022-11-23 15:11:17,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:11:16" (2/3) ... [2022-11-23 15:11:17,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afd205a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:11:17, skipping insertion in model container [2022-11-23 15:11:17,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:17" (3/3) ... [2022-11-23 15:11:17,456 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_63_good.i [2022-11-23 15:11:17,473 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:11:17,473 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-23 15:11:17,516 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:11:17,522 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=FINITE_AUTOMATA, 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;@6ffb4d5d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:11:17,523 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-23 15:11:17,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 24 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-23 15:11:17,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 15:11:17,534 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:17,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:17,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:11:17,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:17,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1736505006, now seen corresponding path program 1 times [2022-11-23 15:11:17,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:17,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543020392] [2022-11-23 15:11:17,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:17,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:17,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:18,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:18,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543020392] [2022-11-23 15:11:18,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543020392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:18,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:18,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:11:18,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172991984] [2022-11-23 15:11:18,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:18,164 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:11:18,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:18,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:11:18,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,199 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.5) internal successors, (24), 24 states have internal predecessors, (24), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:18,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:18,246 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2022-11-23 15:11:18,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:11:18,248 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 7 [2022-11-23 15:11:18,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:18,255 INFO L225 Difference]: With dead ends: 29 [2022-11-23 15:11:18,255 INFO L226 Difference]: Without dead ends: 22 [2022-11-23 15:11:18,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,261 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 18 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:18,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 31 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:18,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-11-23 15:11:18,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-11-23 15:11:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 18 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) [2022-11-23 15:11:18,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-11-23 15:11:18,298 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 7 [2022-11-23 15:11:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:18,299 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-11-23 15:11:18,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-23 15:11:18,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 15:11:18,301 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:18,301 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:18,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:11:18,302 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:11:18,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:18,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2002919713, now seen corresponding path program 1 times [2022-11-23 15:11:18,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:18,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785753453] [2022-11-23 15:11:18,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:18,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:18,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:18,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:18,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:18,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785753453] [2022-11-23 15:11:18,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785753453] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:18,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:18,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:11:18,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485806741] [2022-11-23 15:11:18,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:18,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:11:18,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:18,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:11:18,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,359 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:18,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:18,385 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-11-23 15:11:18,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:11:18,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-23 15:11:18,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:18,387 INFO L225 Difference]: With dead ends: 34 [2022-11-23 15:11:18,387 INFO L226 Difference]: Without dead ends: 21 [2022-11-23 15:11:18,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,388 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:18,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 19 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:18,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-23 15:11:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-23 15:11:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 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) [2022-11-23 15:11:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2022-11-23 15:11:18,395 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 8 [2022-11-23 15:11:18,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:18,395 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2022-11-23 15:11:18,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 15:11:18,396 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2022-11-23 15:11:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:11:18,397 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:18,397 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:18,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:11:18,397 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:11:18,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:18,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1231509480, now seen corresponding path program 1 times [2022-11-23 15:11:18,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:18,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125254253] [2022-11-23 15:11:18,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:18,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:18,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:18,481 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:18,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125254253] [2022-11-23 15:11:18,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125254253] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:18,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:18,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:11:18,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505764579] [2022-11-23 15:11:18,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:18,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:11:18,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:18,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:11:18,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,489 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:11:18,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:18,520 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-23 15:11:18,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:11:18,522 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-11-23 15:11:18,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:18,523 INFO L225 Difference]: With dead ends: 21 [2022-11-23 15:11:18,523 INFO L226 Difference]: Without dead ends: 20 [2022-11-23 15:11:18,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,529 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:18,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 27 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:18,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-23 15:11:18,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-23 15:11:18,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 15 states have internal predecessors, (15), 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) [2022-11-23 15:11:18,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-23 15:11:18,534 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 17 [2022-11-23 15:11:18,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:18,535 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-23 15:11:18,535 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:11:18,535 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-23 15:11:18,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:11:18,536 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:11:18,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:11:18,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:11:18,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-23 15:11:18,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:11:18,537 INFO L85 PathProgramCache]: Analyzing trace with hash -477911708, now seen corresponding path program 1 times [2022-11-23 15:11:18,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:11:18,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800528352] [2022-11-23 15:11:18,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:11:18,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:11:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:11:18,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:11:18,689 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:11:18,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800528352] [2022-11-23 15:11:18,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800528352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:11:18,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:11:18,691 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:11:18,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588752516] [2022-11-23 15:11:18,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:11:18,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:11:18,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:11:18,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:11:18,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,695 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:11:18,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:11:18,739 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-23 15:11:18,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:11:18,739 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2022-11-23 15:11:18,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:11:18,741 INFO L225 Difference]: With dead ends: 20 [2022-11-23 15:11:18,741 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:11:18,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:11:18,748 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:11:18,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:11:18,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:11:18,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:11:18,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:11:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:11:18,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-23 15:11:18,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:11:18,755 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:11:18,755 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:11:18,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:11:18,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:11:18,758 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-23 15:11:18,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-23 15:11:18,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-23 15:11:18,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-23 15:11:18,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:11:18,762 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:11:18,802 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-23 15:11:18,802 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-23 15:11:18,803 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-23 15:11:18,804 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-23 15:11:18,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1603) no Hoare annotation was computed. [2022-11-23 15:11:18,804 INFO L899 garLoopResultBuilder]: For program point L1596(lines 1596 1611) no Hoare annotation was computed. [2022-11-23 15:11:18,804 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1570) no Hoare annotation was computed. [2022-11-23 15:11:18,805 INFO L899 garLoopResultBuilder]: For program point L1592(line 1592) no Hoare annotation was computed. [2022-11-23 15:11:18,805 INFO L899 garLoopResultBuilder]: For program point L1592-1(line 1592) no Hoare annotation was computed. [2022-11-23 15:11:18,806 INFO L895 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2)) [2022-11-23 15:11:18,807 INFO L895 garLoopResultBuilder]: At program point L1584-1(line 1584) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2)) [2022-11-23 15:11:18,807 INFO L899 garLoopResultBuilder]: For program point L1601(lines 1601 1609) no Hoare annotation was computed. [2022-11-23 15:11:18,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-23 15:11:18,807 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 15:11:18,808 INFO L895 garLoopResultBuilder]: At program point L1593(line 1593) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 1) 0) (<= 0 (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2))) [2022-11-23 15:11:18,808 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1592) no Hoare annotation was computed. [2022-11-23 15:11:18,809 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (and (<= (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 1) 0) (<= 0 (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2))) [2022-11-23 15:11:18,809 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:11:18,812 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 1563 1570) no Hoare annotation was computed. [2022-11-23 15:11:18,814 INFO L899 garLoopResultBuilder]: For program point L1590(lines 1590 1594) no Hoare annotation was computed. [2022-11-23 15:11:18,814 INFO L902 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: true [2022-11-23 15:11:18,815 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2022-11-23 15:11:18,816 INFO L899 garLoopResultBuilder]: For program point L1603(line 1603) no Hoare annotation was computed. [2022-11-23 15:11:18,816 INFO L899 garLoopResultBuilder]: For program point L1603-1(line 1603) no Hoare annotation was computed. [2022-11-23 15:11:18,816 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1610) no Hoare annotation was computed. [2022-11-23 15:11:18,816 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1603) no Hoare annotation was computed. [2022-11-23 15:11:18,816 INFO L899 garLoopResultBuilder]: For program point L1587(lines 1587 1595) no Hoare annotation was computed. [2022-11-23 15:11:18,821 INFO L895 garLoopResultBuilder]: At program point L1608(line 1608) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2)) [2022-11-23 15:11:18,821 INFO L895 garLoopResultBuilder]: At program point L1604(line 1604) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_multiply_63b_goodG2BSink_~data~2#1| 2)) [2022-11-23 15:11:18,824 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-23 15:11:18,826 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:11:18,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:11:18 BoogieIcfgContainer [2022-11-23 15:11:18,839 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:11:18,840 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:11:18,840 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:11:18,840 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:11:18,841 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:11:17" (3/4) ... [2022-11-23 15:11:18,844 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:11:18,849 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-23 15:11:18,849 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-23 15:11:18,857 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-23 15:11:18,858 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 15:11:18,858 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-23 15:11:18,858 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:11:18,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:11:18,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:11:18,919 INFO L158 Benchmark]: Toolchain (without parser) took 3713.95ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 110.7MB in the beginning and 142.0MB in the end (delta: -31.3MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,919 INFO L158 Benchmark]: CDTParser took 2.11ms. Allocated memory is still 107.0MB. Free memory was 59.3MB in the beginning and 59.2MB in the end (delta: 160.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1536.54ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 110.3MB in the beginning and 153.3MB in the end (delta: -43.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.53ms. Allocated memory is still 192.9MB. Free memory was 153.3MB in the beginning and 150.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,920 INFO L158 Benchmark]: Boogie Preprocessor took 28.71ms. Allocated memory is still 192.9MB. Free memory was 150.2MB in the beginning and 149.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,920 INFO L158 Benchmark]: RCFGBuilder took 599.48ms. Allocated memory is still 192.9MB. Free memory was 149.1MB in the beginning and 130.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,921 INFO L158 Benchmark]: TraceAbstraction took 1390.07ms. Allocated memory is still 192.9MB. Free memory was 130.2MB in the beginning and 145.2MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:11:18,921 INFO L158 Benchmark]: Witness Printer took 78.26ms. Allocated memory is still 192.9MB. Free memory was 145.2MB in the beginning and 142.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:11:18,924 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.11ms. Allocated memory is still 107.0MB. Free memory was 59.3MB in the beginning and 59.2MB in the end (delta: 160.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1536.54ms. Allocated memory was 144.7MB in the beginning and 192.9MB in the end (delta: 48.2MB). Free memory was 110.3MB in the beginning and 153.3MB in the end (delta: -43.0MB). Peak memory consumption was 71.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.53ms. Allocated memory is still 192.9MB. Free memory was 153.3MB in the beginning and 150.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.71ms. Allocated memory is still 192.9MB. Free memory was 150.2MB in the beginning and 149.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 599.48ms. Allocated memory is still 192.9MB. Free memory was 149.1MB in the beginning and 130.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1390.07ms. Allocated memory is still 192.9MB. Free memory was 130.2MB in the beginning and 145.2MB in the end (delta: -14.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 78.26ms. Allocated memory is still 192.9MB. Free memory was 145.2MB in the beginning and 142.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1592]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1603]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 103 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 47 IncrementalHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 68 mSDtfsCounter, 47 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 14 PreInvPairs, 15 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 78 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1584]: Loop Invariant Derived loop invariant: 0 <= data + 2 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:11:18,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7236d21-8206-411e-95d6-aa7932bff2f7/bin/utaipan-Q6hlc19bkW/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