./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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_34044827-81ea-4769-ac7e-46bb2b715070/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 6645a0fd2cde47a5105cca8cf57317eb6d3addb556e169becd83227ba974bc1c --- 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 06:18:11,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:18:11,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:18:11,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:18:11,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:18:11,782 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:18:11,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:18:11,787 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:18:11,789 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:18:11,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:18:11,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:18:11,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:18:11,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:18:11,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:18:11,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:18:11,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:18:11,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:18:11,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:18:11,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:18:11,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:18:11,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:18:11,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:18:11,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:18:11,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:18:11,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:18:11,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:18:11,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:18:11,814 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:18:11,815 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:18:11,815 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:18:11,816 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:18:11,816 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:18:11,817 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:18:11,817 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:18:11,818 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:18:11,818 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:18:11,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:18:11,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:18:11,819 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:18:11,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:18:11,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:18:11,820 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 06:18:11,835 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:18:11,835 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:18:11,836 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:18:11,836 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:18:11,836 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:18:11,836 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:18:11,836 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:18:11,837 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:18:11,837 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:18:11,838 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:18:11,838 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:18:11,838 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:18:11,838 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:18:11,838 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:18:11,838 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:18:11,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:18:11,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:18:11,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:18:11,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:18:11,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:18:11,841 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:18:11,841 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_34044827-81ea-4769-ac7e-46bb2b715070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6645a0fd2cde47a5105cca8cf57317eb6d3addb556e169becd83227ba974bc1c [2022-12-14 06:18:12,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:18:12,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:18:12,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:18:12,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:18:12,033 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:18:12,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i [2022-12-14 06:18:14,661 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:18:14,921 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:18:14,922 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i [2022-12-14 06:18:14,939 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data/2ac85381d/6b42b43305e1400a85bcbea689399d84/FLAG8c4006cd2 [2022-12-14 06:18:14,953 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data/2ac85381d/6b42b43305e1400a85bcbea689399d84 [2022-12-14 06:18:14,956 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:18:14,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:18:14,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:18:14,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:18:14,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:18:14,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:18:14" (1/1) ... [2022-12-14 06:18:14,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d346a6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:14, skipping insertion in model container [2022-12-14 06:18:14,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:18:14" (1/1) ... [2022-12-14 06:18:14,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:18:15,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:18:15,241 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:18:15,528 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:18:15,533 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:15,534 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:15,536 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:15,536 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:15,554 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 06:18:15,558 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:18:15,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:18:15,567 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:18:15,582 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:18:15,612 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:18:15,614 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:15,615 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:15,616 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:15,617 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:15,620 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 06:18:15,622 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:18:15,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:18:15,699 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:18:15,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15 WrapperNode [2022-12-14 06:18:15,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:18:15,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:18:15,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:18:15,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:18:15,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,735 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-14 06:18:15,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:18:15,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:18:15,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:18:15,736 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:18:15,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,750 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:18:15,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:18:15,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:18:15,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:18:15,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (1/1) ... [2022-12-14 06:18:15,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:18:15,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:18:15,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:18:15,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:18:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 06:18:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:18:15,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:18:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:18:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 06:18:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:18:15,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:18:15,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:18:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:18:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:18:15,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:18:15,944 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:18:15,946 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:18:16,037 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:18:16,060 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:18:16,060 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:18:16,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:16 BoogieIcfgContainer [2022-12-14 06:18:16,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:18:16,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:18:16,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:18:16,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:18:16,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:18:14" (1/3) ... [2022-12-14 06:18:16,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1eac82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:18:16, skipping insertion in model container [2022-12-14 06:18:16,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:15" (2/3) ... [2022-12-14 06:18:16,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1eac82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:18:16, skipping insertion in model container [2022-12-14 06:18:16,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:16" (3/3) ... [2022-12-14 06:18:16,068 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i [2022-12-14 06:18:16,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:18:16,083 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:18:16,118 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:18:16,123 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;@23f8080d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:18:16,123 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:18:16,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:18:16,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:18:16,132 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:16,133 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:16,133 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:18:16,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:16,137 INFO L85 PathProgramCache]: Analyzing trace with hash -970101220, now seen corresponding path program 1 times [2022-12-14 06:18:16,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:18:16,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759364558] [2022-12-14 06:18:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:16,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:18:16,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:16,314 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 06:18:16,315 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:18:16,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759364558] [2022-12-14 06:18:16,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759364558] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:16,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:16,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:18:16,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955435911] [2022-12-14 06:18:16,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:16,320 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:18:16,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:18:16,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:18:16,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:18:16,343 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:16,373 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-12-14 06:18:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:18:16,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-12-14 06:18:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:16,379 INFO L225 Difference]: With dead ends: 29 [2022-12-14 06:18:16,379 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 06:18:16,381 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 06:18:16,384 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 17 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:16,385 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 14 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:18:16,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 06:18:16,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 06:18:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:18:16,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 06:18:16,410 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 8 [2022-12-14 06:18:16,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:16,411 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 06:18:16,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:16,411 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 06:18:16,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-14 06:18:16,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:16,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:16,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:18:16,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:18:16,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:16,413 INFO L85 PathProgramCache]: Analyzing trace with hash -268937897, now seen corresponding path program 1 times [2022-12-14 06:18:16,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:18:16,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854150658] [2022-12-14 06:18:16,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:16,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:18:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:16,516 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 06:18:16,516 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 06:18:16,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854150658] [2022-12-14 06:18:16,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854150658] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:16,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:16,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 06:18:16,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529183873] [2022-12-14 06:18:16,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:16,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:18:16,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 06:18:16,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:18:16,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:18:16,520 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:16,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:16,540 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-12-14 06:18:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 06:18:16,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-12-14 06:18:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:16,541 INFO L225 Difference]: With dead ends: 14 [2022-12-14 06:18:16,541 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 06:18:16,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:18:16,542 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 7 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:16,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 20 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:18:16,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 06:18:16,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 06:18:16,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:18:16,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 06:18:16,545 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2022-12-14 06:18:16,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:16,545 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 06:18:16,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:16,546 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 06:18:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:18:16,546 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:16,546 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:16,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 06:18:16,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:18:16,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:16,547 INFO L85 PathProgramCache]: Analyzing trace with hash 252859848, now seen corresponding path program 1 times [2022-12-14 06:18:16,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:18:16,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839402074] [2022-12-14 06:18:16,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:16,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:18:16,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:18:16,566 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:18:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:18:16,591 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:18:16,592 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:18:16,592 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:18:16,594 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:18:16,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 06:18:16,597 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 06:18:16,599 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:18:16,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:18:16 BoogieIcfgContainer [2022-12-14 06:18:16,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:18:16,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:18:16,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:18:16,616 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:18:16,616 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:16" (3/4) ... [2022-12-14 06:18:16,619 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:18:16,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:18:16,619 INFO L158 Benchmark]: Toolchain (without parser) took 1662.35ms. Allocated memory is still 184.5MB. Free memory was 146.0MB in the beginning and 96.1MB in the end (delta: 49.9MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2022-12-14 06:18:16,619 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:18:16,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.34ms. Allocated memory is still 184.5MB. Free memory was 146.0MB in the beginning and 83.0MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-12-14 06:18:16,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.22ms. Allocated memory is still 184.5MB. Free memory was 83.0MB in the beginning and 80.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:18:16,620 INFO L158 Benchmark]: Boogie Preprocessor took 16.63ms. Allocated memory is still 184.5MB. Free memory was 80.3MB in the beginning and 78.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:18:16,621 INFO L158 Benchmark]: RCFGBuilder took 309.51ms. Allocated memory is still 184.5MB. Free memory was 78.9MB in the beginning and 142.3MB in the end (delta: -63.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2022-12-14 06:18:16,621 INFO L158 Benchmark]: TraceAbstraction took 551.90ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 96.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-12-14 06:18:16,621 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 184.5MB. Free memory is still 96.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:18:16,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 127.9MB. Free memory is still 103.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.34ms. Allocated memory is still 184.5MB. Free memory was 146.0MB in the beginning and 83.0MB in the end (delta: 63.1MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.22ms. Allocated memory is still 184.5MB. Free memory was 83.0MB in the beginning and 80.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.63ms. Allocated memory is still 184.5MB. Free memory was 80.3MB in the beginning and 78.9MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.51ms. Allocated memory is still 184.5MB. Free memory was 78.9MB in the beginning and 142.3MB in the end (delta: -63.3MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * TraceAbstraction took 551.90ms. Allocated memory is still 184.5MB. Free memory was 142.3MB in the beginning and 96.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 184.5MB. Free memory is still 96.1MB. 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE190_Integer_Overflow__int_fgets_postinc_09_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) [L1569] data++ VAL [data=2147483647, data++=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 18 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, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 23 mSDtfsCounter, 16 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 34 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 06:18:16,639 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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_34044827-81ea-4769-ac7e-46bb2b715070/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 6645a0fd2cde47a5105cca8cf57317eb6d3addb556e169becd83227ba974bc1c --- 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 06:18:18,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:18:18,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:18:18,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:18:18,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:18:18,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:18:18,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:18:18,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:18:18,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:18:18,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:18:18,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:18:18,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:18:18,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:18:18,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:18:18,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:18:18,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:18:18,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:18:18,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:18:18,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:18:18,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:18:18,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:18:18,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:18:18,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:18:18,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:18:18,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:18:18,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:18:18,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:18:18,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:18:18,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:18:18,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:18:18,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:18:18,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:18:18,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:18:18,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:18:18,489 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:18:18,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:18:18,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:18:18,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:18:18,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:18:18,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:18:18,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:18:18,493 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 06:18:18,510 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:18:18,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:18:18,511 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:18:18,511 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:18:18,512 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:18:18,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:18:18,512 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:18:18,512 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:18:18,513 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:18:18,513 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:18:18,513 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:18:18,513 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:18:18,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:18:18,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:18:18,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:18:18,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:18:18,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:18:18,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:18:18,515 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:18:18,515 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:18:18,515 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:18:18,516 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:18:18,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:18:18,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:18:18,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:18:18,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:18:18,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:18:18,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:18:18,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:18:18,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:18:18,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:18:18,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:18:18,518 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:18:18,518 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:18:18,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:18:18,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:18:18,518 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:18:18,519 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_34044827-81ea-4769-ac7e-46bb2b715070/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6645a0fd2cde47a5105cca8cf57317eb6d3addb556e169becd83227ba974bc1c [2022-12-14 06:18:18,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:18:18,753 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:18:18,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:18:18,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:18:18,757 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:18:18,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i [2022-12-14 06:18:21,324 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:18:21,631 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:18:21,631 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i [2022-12-14 06:18:21,656 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data/6d40c4058/26f479fff1734bb0bed8fb3320082c1e/FLAG0c1ed2cfc [2022-12-14 06:18:21,671 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/data/6d40c4058/26f479fff1734bb0bed8fb3320082c1e [2022-12-14 06:18:21,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:18:21,675 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:18:21,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:18:21,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:18:21,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:18:21,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:18:21" (1/1) ... [2022-12-14 06:18:21,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28252ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:21, skipping insertion in model container [2022-12-14 06:18:21,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:18:21" (1/1) ... [2022-12-14 06:18:21,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:18:21,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:18:22,007 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:18:22,262 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:18:22,266 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:22,267 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:22,268 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:22,269 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:22,282 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 06:18:22,286 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:18:22,287 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:18:22,298 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:18:22,312 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:18:22,361 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:18:22,362 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:22,363 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:18:22,366 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:22,366 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:18:22,370 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 06:18:22,372 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:18:22,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:18:22,509 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:18:22,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22 WrapperNode [2022-12-14 06:18:22,509 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:18:22,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:18:22,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:18:22,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:18:22,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,556 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-12-14 06:18:22,556 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:18:22,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:18:22,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:18:22,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:18:22,563 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,577 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,577 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,580 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:18:22,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:18:22,581 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:18:22,581 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:18:22,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (1/1) ... [2022-12-14 06:18:22,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:18:22,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:18:22,610 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:18:22,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:18:22,639 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 06:18:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:18:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:18:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 06:18:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:18:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:18:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:18:22,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:18:22,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 06:18:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:18:22,641 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 06:18:22,761 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:18:22,763 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:18:22,888 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:18:22,894 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:18:22,894 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:18:22,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:22 BoogieIcfgContainer [2022-12-14 06:18:22,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:18:22,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:18:22,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:18:22,902 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:18:22,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:18:21" (1/3) ... [2022-12-14 06:18:22,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3c88e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:18:22, skipping insertion in model container [2022-12-14 06:18:22,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:18:22" (2/3) ... [2022-12-14 06:18:22,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3c88e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:18:22, skipping insertion in model container [2022-12-14 06:18:22,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:22" (3/3) ... [2022-12-14 06:18:22,909 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_09_bad.i [2022-12-14 06:18:22,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:18:22,928 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:18:22,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:18:22,970 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;@618d035, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:18:22,970 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:18:22,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 06:18:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:18:22,979 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:22,980 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:22,980 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:18:22,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:22,984 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2022-12-14 06:18:22,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:22,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1144337929] [2022-12-14 06:18:22,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:22,995 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 06:18:22,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:22,996 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:22,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:23,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:18:23,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:23,109 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 06:18:23,109 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:18:23,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:18:23,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1144337929] [2022-12-14 06:18:23,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1144337929] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:23,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:23,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 06:18:23,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817078015] [2022-12-14 06:18:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:23,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:18:23,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:18:23,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:18:23,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:18:23,139 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:23,164 INFO L93 Difference]: Finished difference Result 24 states and 29 transitions. [2022-12-14 06:18:23,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:18:23,166 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 06:18:23,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:23,178 INFO L225 Difference]: With dead ends: 24 [2022-12-14 06:18:23,178 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 06:18:23,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:18:23,185 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:23,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:18:23,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 06:18:23,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 06:18:23,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:18:23,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2022-12-14 06:18:23,213 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2022-12-14 06:18:23,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:23,214 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2022-12-14 06:18:23,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:23,215 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2022-12-14 06:18:23,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:18:23,216 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:23,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:23,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:18:23,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:23,418 INFO L85 PathProgramCache]: Analyzing trace with hash -418707075, now seen corresponding path program 1 times [2022-12-14 06:18:23,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:23,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [839987745] [2022-12-14 06:18:23,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:23,419 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 06:18:23,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:23,420 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:18:23,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:18:23,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:18:23,512 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 06:18:23,513 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:18:23,513 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:18:23,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [839987745] [2022-12-14 06:18:23,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [839987745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:18:23,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:18:23,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:18:23,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667486382] [2022-12-14 06:18:23,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:18:23,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:18:23,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:18:23,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:18:23,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:18:23,516 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 06:18:23,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:18:23,527 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2022-12-14 06:18:23,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:18:23,528 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 06:18:23,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:18:23,529 INFO L225 Difference]: With dead ends: 20 [2022-12-14 06:18:23,529 INFO L226 Difference]: Without dead ends: 16 [2022-12-14 06:18:23,529 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 06:18:23,530 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:18:23,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 16 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:18:23,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-14 06:18:23,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-14 06:18:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 06:18:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-14 06:18:23,534 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2022-12-14 06:18:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:18:23,534 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-14 06:18:23,534 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 06:18:23,534 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-14 06:18:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 06:18:23,535 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:18:23,535 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:18:23,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,736 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:18:23,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:18:23,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1052736290, now seen corresponding path program 1 times [2022-12-14 06:18:23,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:18:23,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [904727459] [2022-12-14 06:18:23,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:18:23,738 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 06:18:23,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:18:23,739 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:18:23,899 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:18:23,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:18:23,972 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 06:18:23,972 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:18:23,973 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:18:23,975 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:18:24,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:24,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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 06:18:24,183 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 06:18:24,191 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:18:24,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:18:24 BoogieIcfgContainer [2022-12-14 06:18:24,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:18:24,255 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:18:24,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:18:24,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:18:24,256 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:18:22" (3/4) ... [2022-12-14 06:18:24,260 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:18:24,261 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:18:24,262 INFO L158 Benchmark]: Toolchain (without parser) took 2586.55ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 42.9MB in the beginning and 53.4MB in the end (delta: -10.5MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-12-14 06:18:24,262 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:18:24,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 833.25ms. Allocated memory is still 71.3MB. Free memory was 42.7MB in the beginning and 45.6MB in the end (delta: -2.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-12-14 06:18:24,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.29ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 42.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:18:24,264 INFO L158 Benchmark]: Boogie Preprocessor took 23.42ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 40.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:18:24,264 INFO L158 Benchmark]: RCFGBuilder took 315.69ms. Allocated memory is still 71.3MB. Free memory was 40.5MB in the beginning and 26.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:18:24,265 INFO L158 Benchmark]: TraceAbstraction took 1355.16ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 26.0MB in the beginning and 53.4MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:18:24,265 INFO L158 Benchmark]: Witness Printer took 6.04ms. Allocated memory is still 86.0MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:18:24,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 833.25ms. Allocated memory is still 71.3MB. Free memory was 42.7MB in the beginning and 45.6MB in the end (delta: -2.9MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.29ms. Allocated memory is still 71.3MB. Free memory was 45.6MB in the beginning and 42.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.42ms. Allocated memory is still 71.3MB. Free memory was 42.8MB in the beginning and 40.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.69ms. Allocated memory is still 71.3MB. Free memory was 40.5MB in the beginning and 26.7MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1355.16ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 26.0MB in the beginning and 53.4MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.04ms. Allocated memory is still 86.0MB. Free memory is still 53.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1558. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=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] [L1579] CALL CWE190_Integer_Overflow__int_fgets_postinc_09_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(GLOBAL_CONST_TRUE) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1556] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1558] data = atoi(inputBuffer) [L1555] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] COND TRUE \read(GLOBAL_CONST_TRUE) [L1569] data++ VAL [data=2147483647, data++=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 44 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 37 SizeOfPredicates, 0 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 06:18:24,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34044827-81ea-4769-ac7e-46bb2b715070/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