./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur --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 1afdc9f29a8bd950e40687b8f14d0dc82a0b8a17d80d4f46eea4ecf99b447ac0 --- 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-38b53e6 [2022-11-25 23:36:46,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:36:46,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:36:46,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:36:46,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:36:46,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:36:46,122 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:36:46,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:36:46,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:36:46,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:36:46,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:36:46,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:36:46,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:36:46,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:36:46,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:36:46,133 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:36:46,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:36:46,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:36:46,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:36:46,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:36:46,142 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:36:46,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:36:46,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:36:46,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:36:46,150 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:36:46,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:36:46,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:36:46,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:36:46,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:36:46,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:36:46,154 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:36:46,155 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:36:46,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:36:46,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:36:46,158 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:36:46,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:36:46,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:36:46,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:36:46,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:36:46,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:36:46,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:36:46,164 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:36:46,187 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:36:46,188 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:36:46,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:36:46,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:36:46,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:36:46,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:36:46,190 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:36:46,190 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:36:46,191 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:36:46,191 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:36:46,191 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:36:46,192 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:36:46,192 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:36:46,192 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:36:46,192 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:36:46,193 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:36:46,193 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:36:46,193 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:36:46,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:36:46,194 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:36:46,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:36:46,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:36:46,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:36:46,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:36:46,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:36:46,196 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:36:46,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:36:46,196 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:36:46,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:36:46,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:36:46,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:36:46,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:46,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:36:46,198 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:36:46,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:36:46,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:36:46,198 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:36:46,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:36:46,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:36:46,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:36:46,199 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_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1afdc9f29a8bd950e40687b8f14d0dc82a0b8a17d80d4f46eea4ecf99b447ac0 [2022-11-25 23:36:46,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:36:46,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:36:46,466 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:36:46,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:36:46,468 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:36:46,469 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i [2022-11-25 23:36:49,595 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:36:50,021 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:36:50,022 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i [2022-11-25 23:36:50,052 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data/2b080d511/9be42387e44645cdb7b1678c15509471/FLAG6ce8bcc1a [2022-11-25 23:36:50,070 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data/2b080d511/9be42387e44645cdb7b1678c15509471 [2022-11-25 23:36:50,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:36:50,078 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:36:50,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:50,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:36:50,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:36:50,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:50" (1/1) ... [2022-11-25 23:36:50,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e058e49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:50, skipping insertion in model container [2022-11-25 23:36:50,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:50" (1/1) ... [2022-11-25 23:36:50,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:36:50,168 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:36:50,606 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:36:51,068 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:36:51,073 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:51,076 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:51,078 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:51,079 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:51,109 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:36:51,115 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:36:51,117 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:36:51,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:36:51,163 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:36:51,238 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:36:51,240 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:51,242 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:36:51,244 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:51,245 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:36:51,250 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:36:51,252 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:36:51,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:36:51,361 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:36:51,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51 WrapperNode [2022-11-25 23:36:51,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:51,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:36:51,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:36:51,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:36:51,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,417 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-11-25 23:36:51,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:36:51,421 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:36:51,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:36:51,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:36:51,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,468 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:36:51,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:36:51,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:36:51,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:36:51,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (1/1) ... [2022-11-25 23:36:51,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:51,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:36:51,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:36:51,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:36:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:36:51,553 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:36:51,553 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:36:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:36:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 23:36:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:36:51,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:36:51,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:36:51,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:36:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:36:51,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:36:51,755 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:36:51,757 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:36:51,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:36:51,956 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:36:51,957 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:36:51,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:51 BoogieIcfgContainer [2022-11-25 23:36:51,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:36:51,961 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:36:51,962 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:36:51,965 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:36:51,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:36:50" (1/3) ... [2022-11-25 23:36:51,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cb733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:36:51, skipping insertion in model container [2022-11-25 23:36:51,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:51" (2/3) ... [2022-11-25 23:36:51,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@479cb733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:36:51, skipping insertion in model container [2022-11-25 23:36:51,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:51" (3/3) ... [2022-11-25 23:36:51,969 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i [2022-11-25 23:36:51,989 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:36:51,989 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:36:52,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:36:52,048 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;@43bd1b79, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:36:52,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:36:52,053 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:36:52,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:36:52,061 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:52,062 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:52,063 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:36:52,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:52,068 INFO L85 PathProgramCache]: Analyzing trace with hash -970101220, now seen corresponding path program 1 times [2022-11-25 23:36:52,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:52,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87692146] [2022-11-25 23:36:52,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:52,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:52,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:52,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:52,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:52,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87692146] [2022-11-25 23:36:52,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87692146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:52,362 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:52,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:52,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597967244] [2022-11-25 23:36:52,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:52,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:36:52,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:36:52,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:52,402 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) 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) [2022-11-25 23:36:52,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:52,441 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-25 23:36:52,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:36:52,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) 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 [2022-11-25 23:36:52,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:52,451 INFO L225 Difference]: With dead ends: 29 [2022-11-25 23:36:52,451 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 23:36:52,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:36:52,457 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:52,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:52,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 23:36:52,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 23:36:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:36:52,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 23:36:52,497 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-11-25 23:36:52,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:52,499 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 23:36:52,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) 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) [2022-11-25 23:36:52,499 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 23:36:52,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 23:36:52,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:52,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:52,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:36:52,501 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:36:52,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:52,502 INFO L85 PathProgramCache]: Analyzing trace with hash -268937897, now seen corresponding path program 1 times [2022-11-25 23:36:52,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:52,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777763107] [2022-11-25 23:36:52,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:52,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:52,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:36:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:36:52,725 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:36:52,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777763107] [2022-11-25 23:36:52,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777763107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:36:52,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:36:52,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:36:52,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360446757] [2022-11-25 23:36:52,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:36:52,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:36:52,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:36:52,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:36:52,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:36:52,729 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-25 23:36:52,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:36:52,769 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-25 23:36:52,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:36:52,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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 10 [2022-11-25 23:36:52,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:36:52,771 INFO L225 Difference]: With dead ends: 14 [2022-11-25 23:36:52,771 INFO L226 Difference]: Without dead ends: 13 [2022-11-25 23:36:52,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:36:52,773 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:36:52,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:36:52,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-25 23:36:52,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-25 23:36:52,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:36:52,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-25 23:36:52,778 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-11-25 23:36:52,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:36:52,779 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-25 23:36:52,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-25 23:36:52,779 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-25 23:36:52,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:36:52,780 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:36:52,780 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:36:52,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:36:52,781 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:36:52,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:36:52,782 INFO L85 PathProgramCache]: Analyzing trace with hash 252859848, now seen corresponding path program 1 times [2022-11-25 23:36:52,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:36:52,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140503756] [2022-11-25 23:36:52,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:36:52,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:36:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:36:52,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:36:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:36:52,859 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:36:52,861 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:36:52,862 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:36:52,865 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:36:52,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:36:52,869 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:36:52,873 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:36:52,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:36:52 BoogieIcfgContainer [2022-11-25 23:36:52,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:36:52,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:36:52,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:36:52,928 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:36:52,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:36:51" (3/4) ... [2022-11-25 23:36:52,931 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:36:52,931 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:36:52,932 INFO L158 Benchmark]: Toolchain (without parser) took 2853.79ms. Allocated memory is still 209.7MB. Free memory was 166.7MB in the beginning and 122.4MB in the end (delta: 44.3MB). Peak memory consumption was 46.4MB. Max. memory is 16.1GB. [2022-11-25 23:36:52,932 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:36:52,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1277.62ms. Allocated memory is still 209.7MB. Free memory was 166.1MB in the beginning and 105.3MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-25 23:36:52,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.63ms. Allocated memory is still 209.7MB. Free memory was 105.3MB in the beginning and 102.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:36:52,935 INFO L158 Benchmark]: Boogie Preprocessor took 51.34ms. Allocated memory is still 209.7MB. Free memory was 102.6MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:36:52,936 INFO L158 Benchmark]: RCFGBuilder took 486.87ms. Allocated memory is still 209.7MB. Free memory was 101.1MB in the beginning and 167.5MB in the end (delta: -66.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2022-11-25 23:36:52,936 INFO L158 Benchmark]: TraceAbstraction took 965.74ms. Allocated memory is still 209.7MB. Free memory was 166.5MB in the beginning and 122.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 23:36:52,937 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 209.7MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:36:52,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 84.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1277.62ms. Allocated memory is still 209.7MB. Free memory was 166.1MB in the beginning and 105.3MB in the end (delta: 60.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.63ms. Allocated memory is still 209.7MB. Free memory was 105.3MB in the beginning and 102.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.34ms. Allocated memory is still 209.7MB. Free memory was 102.6MB in the beginning and 101.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 486.87ms. Allocated memory is still 209.7MB. Free memory was 101.1MB in the beginning and 167.5MB in the end (delta: -66.4MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * TraceAbstraction took 965.74ms. Allocated memory is still 209.7MB. Free memory was 166.5MB in the beginning and 122.4MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 209.7MB. Free memory is still 122.4MB. 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; [L1580] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483653:2147483652}, argv={2147483653:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_postinc_04_bad() [L1552] int data; [L1553] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) [L1571] data++ VAL [data=2147483647, 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1571]: 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 2 procedures, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 23 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 7, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:36:52,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/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_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur --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 1afdc9f29a8bd950e40687b8f14d0dc82a0b8a17d80d4f46eea4ecf99b447ac0 --- 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-38b53e6 [2022-11-25 23:36:55,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:36:55,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:36:55,476 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:36:55,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:36:55,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:36:55,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:36:55,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:36:55,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:36:55,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:36:55,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:36:55,496 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:36:55,497 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:36:55,498 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:36:55,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:36:55,501 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:36:55,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:36:55,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:36:55,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:36:55,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:36:55,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:36:55,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:36:55,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:36:55,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:36:55,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:36:55,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:36:55,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:36:55,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:36:55,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:36:55,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:36:55,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:36:55,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:36:55,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:36:55,535 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:36:55,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:36:55,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:36:55,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:36:55,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:36:55,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:36:55,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:36:55,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:36:55,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:36:55,589 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:36:55,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:36:55,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:36:55,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:36:55,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:36:55,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:36:55,593 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:36:55,593 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:36:55,593 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:36:55,593 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:36:55,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:36:55,595 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:36:55,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:36:55,596 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:36:55,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:36:55,596 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:36:55,596 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:36:55,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:36:55,597 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:36:55,597 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:36:55,597 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:36:55,597 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:36:55,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:36:55,598 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:36:55,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:36:55,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:36:55,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:36:55,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:36:55,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:36:55,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:36:55,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:36:55,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:36:55,601 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:36:55,601 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:36:55,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:36:55,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:36:55,602 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:36:55,602 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_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1afdc9f29a8bd950e40687b8f14d0dc82a0b8a17d80d4f46eea4ecf99b447ac0 [2022-11-25 23:36:56,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:36:56,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:36:56,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:36:56,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:36:56,044 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:36:56,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i [2022-11-25 23:36:59,174 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:36:59,549 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:36:59,551 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i [2022-11-25 23:36:59,581 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data/083b5b7d5/94d48ad7303f4d72b459c54b25d940e3/FLAG637cca1af [2022-11-25 23:36:59,605 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/data/083b5b7d5/94d48ad7303f4d72b459c54b25d940e3 [2022-11-25 23:36:59,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:36:59,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:36:59,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:36:59,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:36:59,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:36:59,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:59" (1/1) ... [2022-11-25 23:36:59,617 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d5589e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:36:59, skipping insertion in model container [2022-11-25 23:36:59,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:36:59" (1/1) ... [2022-11-25 23:36:59,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:36:59,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:37:00,152 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:37:00,606 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:37:00,613 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:00,616 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:00,618 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:00,619 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:00,642 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:37:00,653 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:37:00,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:37:00,668 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:37:00,696 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:37:00,751 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:37:00,753 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:00,754 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:37:00,756 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:00,757 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:37:00,768 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 23:37:00,778 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:37:00,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:37:00,974 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:37:00,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00 WrapperNode [2022-11-25 23:37:00,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:37:00,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:37:00,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:37:00,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:37:00,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,021 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,063 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-25 23:37:01,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:37:01,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:37:01,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:37:01,065 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:37:01,074 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,114 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:37:01,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:37:01,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:37:01,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:37:01,133 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (1/1) ... [2022-11-25 23:37:01,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:37:01,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:37:01,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:37:01,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:37:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 23:37:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:37:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:37:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:37:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:37:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:37:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:37:01,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:37:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:37:01,223 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:37:01,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 23:37:01,436 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:37:01,438 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:37:01,695 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:37:01,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:37:01,708 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:37:01,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:01 BoogieIcfgContainer [2022-11-25 23:37:01,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:37:01,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:37:01,714 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:37:01,718 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:37:01,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:36:59" (1/3) ... [2022-11-25 23:37:01,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47114f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:37:01, skipping insertion in model container [2022-11-25 23:37:01,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:37:00" (2/3) ... [2022-11-25 23:37:01,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47114f19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:37:01, skipping insertion in model container [2022-11-25 23:37:01,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:01" (3/3) ... [2022-11-25 23:37:01,723 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_04_bad.i [2022-11-25 23:37:01,745 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:37:01,745 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:37:01,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:37:01,832 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;@62a2e5c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:37:01,832 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:37:01,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:37:01,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:37:01,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:01,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:01,846 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:37:01,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:01,853 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2022-11-25 23:37:01,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:37:01,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766520388] [2022-11-25 23:37:01,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:01,870 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:37:01,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:37:01,879 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:37:01,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 23:37:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:02,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 23:37:02,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:37:02,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:37:02,072 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:37:02,073 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:37:02,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766520388] [2022-11-25 23:37:02,074 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766520388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:02,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:02,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:37:02,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253305094] [2022-11-25 23:37:02,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:02,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 23:37:02,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:37:02,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 23:37:02,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:37:02,133 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-25 23:37:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:02,158 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-11-25 23:37:02,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 23:37:02,161 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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 11 [2022-11-25 23:37:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:02,168 INFO L225 Difference]: With dead ends: 24 [2022-11-25 23:37:02,169 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 23:37:02,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 23:37:02,176 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:02,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:37:02,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 23:37:02,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 23:37:02,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:37:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-11-25 23:37:02,214 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-11-25 23:37:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:02,217 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-11-25 23:37:02,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 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) [2022-11-25 23:37:02,218 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-11-25 23:37:02,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 23:37:02,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:02,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:02,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 23:37:02,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:37:02,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:37:02,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:02,440 INFO L85 PathProgramCache]: Analyzing trace with hash -418707075, now seen corresponding path program 1 times [2022-11-25 23:37:02,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:37:02,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1712215191] [2022-11-25 23:37:02,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:02,442 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:37:02,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:37:02,443 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:37:02,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 23:37:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:37:02,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:37:02,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:37:02,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:37:02,618 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:37:02,619 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:37:02,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1712215191] [2022-11-25 23:37:02,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1712215191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:37:02,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:37:02,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:37:02,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401899215] [2022-11-25 23:37:02,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:37:02,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:37:02,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:37:02,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:37:02,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:37:02,622 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-25 23:37:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:37:02,635 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-11-25 23:37:02,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:37:02,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2022-11-25 23:37:02,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:37:02,636 INFO L225 Difference]: With dead ends: 20 [2022-11-25 23:37:02,636 INFO L226 Difference]: Without dead ends: 16 [2022-11-25 23:37:02,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:37:02,638 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:37:02,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:37:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-25 23:37:02,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-11-25 23:37:02,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:37:02,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-25 23:37:02,659 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2022-11-25 23:37:02,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:37:02,660 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-25 23:37:02,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-25 23:37:02,660 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-25 23:37:02,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 23:37:02,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:37:02,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:37:02,683 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:37:02,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:37:02,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:37:02,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:37:02,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1052736290, now seen corresponding path program 1 times [2022-11-25 23:37:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:37:02,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [13748517] [2022-11-25 23:37:02,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:37:02,877 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:37:02,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:37:02,878 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 23:37:02,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 23:37:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:37:02,994 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:37:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:37:03,061 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:37:03,061 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:37:03,062 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:37:03,064 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:37:03,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:37:03,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 23:37:03,269 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:37:03,273 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:37:03,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:37:03 BoogieIcfgContainer [2022-11-25 23:37:03,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:37:03,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:37:03,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:37:03,302 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:37:03,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:37:01" (3/4) ... [2022-11-25 23:37:03,306 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:37:03,306 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:37:03,307 INFO L158 Benchmark]: Toolchain (without parser) took 3697.42ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 39.5MB in the beginning and 51.9MB in the end (delta: -12.4MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2022-11-25 23:37:03,308 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:37:03,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1364.08ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 39.3MB in the beginning and 59.9MB in the end (delta: -20.6MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2022-11-25 23:37:03,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.71ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 56.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:37:03,309 INFO L158 Benchmark]: Boogie Preprocessor took 66.04ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:37:03,310 INFO L158 Benchmark]: RCFGBuilder took 579.32ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 40.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:37:03,310 INFO L158 Benchmark]: TraceAbstraction took 1588.23ms. Allocated memory is still 92.3MB. Free memory was 40.4MB in the beginning and 52.4MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:37:03,311 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 51.9MB in the end (delta: 534.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:37:03,313 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1364.08ms. Allocated memory was 71.3MB in the beginning and 92.3MB in the end (delta: 21.0MB). Free memory was 39.3MB in the beginning and 59.9MB in the end (delta: -20.6MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.71ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 56.7MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.04ms. Allocated memory is still 92.3MB. Free memory was 56.7MB in the beginning and 54.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.32ms. Allocated memory is still 92.3MB. Free memory was 54.6MB in the beginning and 40.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1588.23ms. Allocated memory is still 92.3MB. Free memory was 40.4MB in the beginning and 52.4MB in the end (delta: -12.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 92.3MB. Free memory was 52.4MB in the beginning and 51.9MB in the end (delta: 534.2kB). 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: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1580] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1581] CALL CWE190_Integer_Overflow__int_fgets_postinc_04_bad() [L1552] int data; [L1553] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1568] COND TRUE \read(STATIC_CONST_TRUE) [L1571] data++ VAL [data=2147483647, 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1571]: 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 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:37:03,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_35b29e45-5493-4ec5-a2a1-82e1dcd513ee/bin/utaipan-ByfvJB40ur/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: UNKNOWN: Overapproximated counterexample