./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh --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 671d705a70336356947a97806e14e6e59074b41604d6d754fbc520319aac2b10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:05:23,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:05:23,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:05:23,587 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:05:23,588 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:05:23,589 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:05:23,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:05:23,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:05:23,592 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:05:23,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:05:23,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:05:23,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:05:23,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:05:23,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:05:23,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:05:23,596 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:05:23,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:05:23,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:05:23,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:05:23,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:05:23,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:05:23,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:05:23,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:05:23,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:05:23,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:05:23,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:05:23,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:05:23,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:05:23,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:05:23,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:05:23,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:05:23,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:05:23,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:05:23,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:05:23,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:05:23,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:05:23,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:05:23,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:05:23,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:05:23,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:05:23,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:05:23,614 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 08:05:23,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:05:23,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:05:23,630 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:05:23,630 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:05:23,631 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:05:23,631 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:05:23,631 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:05:23,631 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:05:23,631 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:05:23,631 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 08:05:23,632 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:05:23,632 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:05:23,632 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 08:05:23,632 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 08:05:23,632 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:05:23,632 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 08:05:23,633 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 08:05:23,633 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 08:05:23,633 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:05:23,633 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:05:23,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 08:05:23,634 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:05:23,634 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:05:23,634 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:05:23,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:05:23,634 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:05:23,635 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:05:23,635 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:05:23,635 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:05:23,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:05:23,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:05:23,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:05:23,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:05:23,636 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 08:05:23,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:05:23,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:05:23,637 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 08:05:23,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 08:05:23,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:05:23,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:05:23,637 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_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 671d705a70336356947a97806e14e6e59074b41604d6d754fbc520319aac2b10 [2022-12-14 08:05:23,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:05:23,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:05:23,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:05:23,871 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:05:23,871 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:05:23,873 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i [2022-12-14 08:05:26,436 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:05:26,716 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:05:26,716 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i [2022-12-14 08:05:26,734 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data/f27fa1fe4/27fb157a41b94c94949f0d05076439af/FLAG7a3f8b2aa [2022-12-14 08:05:26,997 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data/f27fa1fe4/27fb157a41b94c94949f0d05076439af [2022-12-14 08:05:26,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:05:27,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:05:27,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:05:27,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:05:27,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:05:27,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:05:26" (1/1) ... [2022-12-14 08:05:27,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cfe37ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27, skipping insertion in model container [2022-12-14 08:05:27,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:05:26" (1/1) ... [2022-12-14 08:05:27,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:05:27,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:05:27,284 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:05:27,568 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:05:27,572 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:27,573 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:27,575 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:27,575 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:27,588 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:05:27,592 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:05:27,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:05:27,600 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:05:27,613 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:05:27,645 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:05:27,646 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:27,647 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:27,649 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:27,649 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:27,652 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:05:27,654 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:05:27,655 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:05:27,734 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:05:27,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27 WrapperNode [2022-12-14 08:05:27,734 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:05:27,735 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:05:27,735 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:05:27,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:05:27,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,771 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-12-14 08:05:27,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:05:27,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:05:27,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:05:27,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:05:27,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,780 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,786 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:05:27,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:05:27,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:05:27,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:05:27,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (1/1) ... [2022-12-14 08:05:27,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:05:27,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:05:27,813 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:05:27,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:05:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 08:05:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 08:05:27,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 08:05:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:05:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 08:05:27,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:05:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:05:27,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:05:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:05:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 08:05:27,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 08:05:27,964 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:05:27,966 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:05:28,060 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:05:28,088 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:05:28,088 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:05:28,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:05:28 BoogieIcfgContainer [2022-12-14 08:05:28,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:05:28,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:05:28,093 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:05:28,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:05:28,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:05:26" (1/3) ... [2022-12-14 08:05:28,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bca794d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:05:28, skipping insertion in model container [2022-12-14 08:05:28,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:27" (2/3) ... [2022-12-14 08:05:28,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bca794d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:05:28, skipping insertion in model container [2022-12-14 08:05:28,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:05:28" (3/3) ... [2022-12-14 08:05:28,098 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i [2022-12-14 08:05:28,114 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:05:28,114 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:05:28,158 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:05:28,165 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;@739826d8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:05:28,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 08:05:28,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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) [2022-12-14 08:05:28,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 08:05:28,176 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:28,177 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:28,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:05:28,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:28,182 INFO L85 PathProgramCache]: Analyzing trace with hash 805598275, now seen corresponding path program 1 times [2022-12-14 08:05:28,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:05:28,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813500642] [2022-12-14 08:05:28,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:28,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:05:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:05:28,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:05:28,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:05:28,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813500642] [2022-12-14 08:05:28,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813500642] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:05:28,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:05:28,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 08:05:28,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054873388] [2022-12-14 08:05:28,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:05:28,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:05:28,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:05:28,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:05:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:05:28,401 INFO L87 Difference]: Start difference. First operand has 19 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 08:05:28,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:05:28,429 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-12-14 08:05:28,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:05:28,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 9 [2022-12-14 08:05:28,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:05:28,436 INFO L225 Difference]: With dead ends: 31 [2022-12-14 08:05:28,436 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 08:05:28,438 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 [2022-12-14 08:05:28,440 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 16 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 [2022-12-14 08:05:28,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:05:28,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 08:05:28,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 08:05:28,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 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) [2022-12-14 08:05:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-14 08:05:28,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2022-12-14 08:05:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:05:28,464 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-14 08:05:28,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-12-14 08:05:28,464 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-14 08:05:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 08:05:28,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:28,465 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:28,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 08:05:28,465 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:05:28,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:28,465 INFO L85 PathProgramCache]: Analyzing trace with hash 789107816, now seen corresponding path program 1 times [2022-12-14 08:05:28,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:05:28,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032175130] [2022-12-14 08:05:28,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:28,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:05:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:05:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:05:28,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 08:05:28,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032175130] [2022-12-14 08:05:28,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1032175130] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:05:28,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:05:28,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:05:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496975153] [2022-12-14 08:05:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:05:28,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:05:28,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 08:05:28,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:05:28,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:05:28,534 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-12-14 08:05:28,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:05:28,546 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-12-14 08:05:28,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:05:28,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2022-12-14 08:05:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:05:28,547 INFO L225 Difference]: With dead ends: 15 [2022-12-14 08:05:28,547 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 08:05:28,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:05:28,549 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:05:28,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:05:28,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 08:05:28,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 08:05:28,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.1) 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) [2022-12-14 08:05:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 08:05:28,551 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-14 08:05:28,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:05:28,552 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 08:05:28,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-12-14 08:05:28,552 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 08:05:28,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:05:28,552 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:28,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:28,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 08:05:28,552 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:05:28,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:28,553 INFO L85 PathProgramCache]: Analyzing trace with hash -1307461414, now seen corresponding path program 1 times [2022-12-14 08:05:28,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 08:05:28,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543512781] [2022-12-14 08:05:28,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:28,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 08:05:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:05:28,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:05:28,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:05:28,602 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 08:05:28,602 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:05:28,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 08:05:28,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 08:05:28,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 08:05:28,607 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 08:05:28,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:05:28,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:05:28 BoogieIcfgContainer [2022-12-14 08:05:28,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:05:28,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:05:28,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:05:28,627 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:05:28,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:05:28" (3/4) ... [2022-12-14 08:05:28,630 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:05:28,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:05:28,630 INFO L158 Benchmark]: Toolchain (without parser) took 1630.04ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 69.4MB in the beginning and 123.1MB in the end (delta: -53.8MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-12-14 08:05:28,630 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:05:28,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 733.18ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 69.1MB in the beginning and 100.0MB in the end (delta: -31.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2022-12-14 08:05:28,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.08ms. Allocated memory is still 184.5MB. Free memory was 100.0MB in the beginning and 96.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:05:28,632 INFO L158 Benchmark]: Boogie Preprocessor took 16.89ms. Allocated memory is still 184.5MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:05:28,632 INFO L158 Benchmark]: RCFGBuilder took 301.46ms. Allocated memory is still 184.5MB. Free memory was 94.8MB in the beginning and 80.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 08:05:28,632 INFO L158 Benchmark]: TraceAbstraction took 534.31ms. Allocated memory is still 184.5MB. Free memory was 80.1MB in the beginning and 123.1MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:05:28,632 INFO L158 Benchmark]: Witness Printer took 2.65ms. Allocated memory is still 184.5MB. Free memory is still 123.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:05:28,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory is still 97.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 733.18ms. Allocated memory was 125.8MB in the beginning and 184.5MB in the end (delta: 58.7MB). Free memory was 69.1MB in the beginning and 100.0MB in the end (delta: -31.0MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.08ms. Allocated memory is still 184.5MB. Free memory was 100.0MB in the beginning and 96.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.89ms. Allocated memory is still 184.5MB. Free memory was 96.9MB in the beginning and 94.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.46ms. Allocated memory is still 184.5MB. Free memory was 94.8MB in the beginning and 80.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 534.31ms. Allocated memory is still 184.5MB. Free memory was 80.1MB in the beginning and 123.1MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.65ms. Allocated memory is still 184.5MB. Free memory is still 123.1MB. 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 1559. 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 int staticFive = 5; [L1579] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] RET printLine("Calling bad()...") VAL [\old(argc)=1073741825, argc=1073741825, argv={1073741828:1073741827}, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1580] CALL CWE190_Integer_Overflow__int_fgets_multiply_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1567] COND TRUE staticFive==5 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1569] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1571] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - 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, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 27 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 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 [2022-12-14 08:05:28,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh --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 671d705a70336356947a97806e14e6e59074b41604d6d754fbc520319aac2b10 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 08:05:30,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 08:05:30,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 08:05:30,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 08:05:30,618 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 08:05:30,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 08:05:30,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 08:05:30,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 08:05:30,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 08:05:30,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 08:05:30,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 08:05:30,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 08:05:30,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 08:05:30,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 08:05:30,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 08:05:30,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 08:05:30,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 08:05:30,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 08:05:30,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 08:05:30,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 08:05:30,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 08:05:30,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 08:05:30,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 08:05:30,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 08:05:30,644 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 08:05:30,645 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 08:05:30,645 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 08:05:30,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 08:05:30,646 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 08:05:30,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 08:05:30,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 08:05:30,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 08:05:30,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 08:05:30,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 08:05:30,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 08:05:30,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 08:05:30,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 08:05:30,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 08:05:30,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 08:05:30,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 08:05:30,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 08:05:30,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 08:05:30,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 08:05:30,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 08:05:30,668 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 08:05:30,668 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 08:05:30,669 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 08:05:30,669 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 08:05:30,669 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 08:05:30,669 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 08:05:30,669 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 08:05:30,670 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 08:05:30,670 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 08:05:30,670 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 08:05:30,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 08:05:30,671 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 08:05:30,672 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 08:05:30,672 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 08:05:30,672 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 08:05:30,672 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 08:05:30,672 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 08:05:30,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 08:05:30,673 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 08:05:30,673 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 08:05:30,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:05:30,673 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 08:05:30,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 08:05:30,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 08:05:30,674 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 08:05:30,674 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 08:05:30,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 08:05:30,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 08:05:30,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 08:05:30,675 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_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 671d705a70336356947a97806e14e6e59074b41604d6d754fbc520319aac2b10 [2022-12-14 08:05:30,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 08:05:30,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 08:05:30,922 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 08:05:30,923 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 08:05:30,923 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 08:05:30,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i [2022-12-14 08:05:33,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 08:05:33,760 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 08:05:33,760 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i [2022-12-14 08:05:33,777 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data/bfb6293e1/2d79df96042c47e1960bbe2b761306bc/FLAGb342a6577 [2022-12-14 08:05:33,791 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/data/bfb6293e1/2d79df96042c47e1960bbe2b761306bc [2022-12-14 08:05:33,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 08:05:33,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 08:05:33,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 08:05:33,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 08:05:33,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 08:05:33,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:05:33" (1/1) ... [2022-12-14 08:05:33,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@649bde34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:33, skipping insertion in model container [2022-12-14 08:05:33,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 08:05:33" (1/1) ... [2022-12-14 08:05:33,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 08:05:33,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 08:05:34,173 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:05:34,484 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:05:34,488 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:34,489 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:34,491 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:34,492 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:34,510 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:05:34,515 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:05:34,516 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:05:34,528 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 08:05:34,544 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 08:05:34,589 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 08:05:34,598 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:34,600 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 08:05:34,602 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:34,602 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 08:05:34,606 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 08:05:34,608 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 08:05:34,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 08:05:34,743 INFO L208 MainTranslator]: Completed translation [2022-12-14 08:05:34,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34 WrapperNode [2022-12-14 08:05:34,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 08:05:34,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 08:05:34,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 08:05:34,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 08:05:34,752 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,790 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-12-14 08:05:34,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 08:05:34,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 08:05:34,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 08:05:34,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 08:05:34,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,800 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,809 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 08:05:34,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 08:05:34,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 08:05:34,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 08:05:34,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (1/1) ... [2022-12-14 08:05:34,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 08:05:34,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 08:05:34,836 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 08:05:34,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 08:05:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 08:05:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 08:05:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 08:05:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 08:05:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 08:05:34,997 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 08:05:35,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 08:05:35,128 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 08:05:35,134 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 08:05:35,134 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 08:05:35,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:05:35 BoogieIcfgContainer [2022-12-14 08:05:35,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 08:05:35,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 08:05:35,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 08:05:35,141 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 08:05:35,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 08:05:33" (1/3) ... [2022-12-14 08:05:35,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453078d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:05:35, skipping insertion in model container [2022-12-14 08:05:35,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 08:05:34" (2/3) ... [2022-12-14 08:05:35,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@453078d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 08:05:35, skipping insertion in model container [2022-12-14 08:05:35,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:05:35" (3/3) ... [2022-12-14 08:05:35,144 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_07_bad.i [2022-12-14 08:05:35,162 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 08:05:35,162 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 08:05:35,204 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 08:05:35,210 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;@6b91666f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 08:05:35,210 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 08:05:35,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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) [2022-12-14 08:05:35,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 08:05:35,220 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:35,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:35,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:05:35,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:35,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1426013167, now seen corresponding path program 1 times [2022-12-14 08:05:35,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:05:35,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113440571] [2022-12-14 08:05:35,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:35,234 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 [2022-12-14 08:05:35,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:05:35,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:05:35,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:35,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:05:35,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:05:35,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:05:35,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:05:35,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:05:35,377 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:05:35,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113440571] [2022-12-14 08:05:35,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2113440571] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:05:35,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:05:35,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:05:35,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819372894] [2022-12-14 08:05:35,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:05:35,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:05:35,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:05:35,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:05:35,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:05:35,413 INFO L87 Difference]: Start difference. First operand has 25 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 21 states have internal predecessors, (25), 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 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) [2022-12-14 08:05:35,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:05:35,440 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-12-14 08:05:35,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:05:35,442 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 [2022-12-14 08:05:35,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:05:35,447 INFO L225 Difference]: With dead ends: 42 [2022-12-14 08:05:35,447 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 08:05:35,449 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 [2022-12-14 08:05:35,451 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:05:35,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 27 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:05:35,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 08:05:35,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 08:05:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-12-14 08:05:35,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2022-12-14 08:05:35,478 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2022-12-14 08:05:35,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:05:35,479 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2022-12-14 08:05:35,480 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) [2022-12-14 08:05:35,480 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2022-12-14 08:05:35,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 08:05:35,481 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:35,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:35,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:35,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:35,683 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:05:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:35,685 INFO L85 PathProgramCache]: Analyzing trace with hash -600807242, now seen corresponding path program 1 times [2022-12-14 08:05:35,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:05:35,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583606371] [2022-12-14 08:05:35,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:35,688 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 [2022-12-14 08:05:35,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:05:35,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:05:35,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 08:05:35,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 08:05:35,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 08:05:35,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 08:05:35,833 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 08:05:35,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 08:05:35,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583606371] [2022-12-14 08:05:35,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583606371] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 08:05:35,834 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 08:05:35,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 08:05:35,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735759745] [2022-12-14 08:05:35,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 08:05:35,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 08:05:35,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 08:05:35,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 08:05:35,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:05:35,836 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-14 08:05:35,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 08:05:35,847 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2022-12-14 08:05:35,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 08:05:35,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2022-12-14 08:05:35,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 08:05:35,848 INFO L225 Difference]: With dead ends: 18 [2022-12-14 08:05:35,848 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 08:05:35,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 08:05:35,850 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 2 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 08:05:35,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 08:05:35,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 08:05:35,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 08:05:35,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 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) [2022-12-14 08:05:35,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 08:05:35,855 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 14 [2022-12-14 08:05:35,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 08:05:35,855 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 08:05:35,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-12-14 08:05:35,855 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 08:05:35,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-14 08:05:35,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 08:05:35,856 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 08:05:35,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:05:36,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:36,058 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 08:05:36,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 08:05:36,059 INFO L85 PathProgramCache]: Analyzing trace with hash -1445155252, now seen corresponding path program 1 times [2022-12-14 08:05:36,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 08:05:36,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [671378598] [2022-12-14 08:05:36,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 08:05:36,062 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 [2022-12-14 08:05:36,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 08:05:36,065 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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) [2022-12-14 08:05:36,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:36,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:05:36,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 08:05:36,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 08:05:36,227 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 08:05:36,228 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 08:05:36,229 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 08:05:36,230 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 08:05:36,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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)] Ended with exit code 0 [2022-12-14 08:05:36,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/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 [2022-12-14 08:05:36,441 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 08:05:36,450 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 08:05:36,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 08:05:36 BoogieIcfgContainer [2022-12-14 08:05:36,488 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 08:05:36,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 08:05:36,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 08:05:36,489 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 08:05:36,489 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 08:05:35" (3/4) ... [2022-12-14 08:05:36,492 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 08:05:36,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 08:05:36,493 INFO L158 Benchmark]: Toolchain (without parser) took 2698.16ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 44.2MB in the beginning and 43.8MB in the end (delta: 324.1kB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2022-12-14 08:05:36,493 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:05:36,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 948.35ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 44.0MB in the beginning and 55.1MB in the end (delta: -11.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-12-14 08:05:36,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.48ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 52.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:05:36,494 INFO L158 Benchmark]: Boogie Preprocessor took 22.17ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 50.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 08:05:36,494 INFO L158 Benchmark]: RCFGBuilder took 322.49ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 59.4MB in the end (delta: -9.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 08:05:36,494 INFO L158 Benchmark]: TraceAbstraction took 1350.30ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 43.8MB in the end (delta: 14.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2022-12-14 08:05:36,495 INFO L158 Benchmark]: Witness Printer took 3.40ms. Allocated memory is still 92.3MB. Free memory is still 43.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 08:05:36,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory is still 46.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 948.35ms. Allocated memory was 69.2MB in the beginning and 92.3MB in the end (delta: 23.1MB). Free memory was 44.0MB in the beginning and 55.1MB in the end (delta: -11.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.48ms. Allocated memory is still 92.3MB. Free memory was 55.1MB in the beginning and 52.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.17ms. Allocated memory is still 92.3MB. Free memory was 52.2MB in the beginning and 50.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 322.49ms. Allocated memory is still 92.3MB. Free memory was 50.1MB in the beginning and 59.4MB in the end (delta: -9.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1350.30ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 43.8MB in the end (delta: 14.9MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * Witness Printer took 3.40ms. Allocated memory is still 92.3MB. Free memory is still 43.8MB. 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 1559. 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 int staticFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1579] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1579] 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, staticFive=5] [L1580] CALL CWE190_Integer_Overflow__int_fgets_multiply_07_bad() [L1551] int data; [L1552] 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, staticFive=5] [L1553] COND TRUE staticFive==5 [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1557] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1559] data = atoi(inputBuffer) [L1556] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1567] COND TRUE staticFive==5 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1569] COND TRUE data > 0 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1571] data * 2 VAL [data=1073741824, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - 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, 25 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 44 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 42 SizeOfPredicates, 0 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 4 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 [2022-12-14 08:05:36,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d37f2d3a-72fa-4e7f-82f0-0879f318ebc4/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample