./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_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_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a38dc523d74c17307615d8080a3f21a0feb7188a383a17ebd1a3d9635bdb3153 --- 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 [2022-12-13 12:17:13,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:17:13,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:17:13,609 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:17:13,609 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:17:13,610 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:17:13,611 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:17:13,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:17:13,614 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:17:13,615 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:17:13,616 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:17:13,617 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:17:13,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:17:13,619 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:17:13,620 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:17:13,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:17:13,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:17:13,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:17:13,624 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:17:13,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:17:13,628 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:17:13,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:17:13,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:17:13,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:17:13,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:17:13,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:17:13,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:17:13,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:17:13,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:17:13,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:17:13,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:17:13,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:17:13,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:17:13,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:17:13,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:17:13,644 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:17:13,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:17:13,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:17:13,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:17:13,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:17:13,646 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:17:13,647 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:17:13,672 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:17:13,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:17:13,672 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:17:13,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:17:13,673 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:17:13,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:17:13,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:17:13,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:17:13,674 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:17:13,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:17:13,674 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:17:13,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:17:13,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:17:13,675 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:17:13,675 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:17:13,675 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:17:13,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:17:13,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:17:13,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:17:13,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:17:13,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:17:13,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:17:13,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:17:13,677 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:17:13,677 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:17:13,678 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:17:13,678 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:17:13,678 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:17:13,678 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38dc523d74c17307615d8080a3f21a0feb7188a383a17ebd1a3d9635bdb3153 [2022-12-13 12:17:13,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:17:13,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:17:13,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:17:13,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:17:13,868 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:17:13,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i [2022-12-13 12:17:16,412 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:17:16,677 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:17:16,677 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i [2022-12-13 12:17:16,690 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data/c13dc1434/e6e96a1470b8400bb533dee5531e6aff/FLAGf55176b79 [2022-12-13 12:17:16,700 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data/c13dc1434/e6e96a1470b8400bb533dee5531e6aff [2022-12-13 12:17:16,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:17:16,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:17:16,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:17:16,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:17:16,707 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:17:16,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:17:16" (1/1) ... [2022-12-13 12:17:16,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5246097d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:16, skipping insertion in model container [2022-12-13 12:17:16,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:17:16" (1/1) ... [2022-12-13 12:17:16,713 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:17:16,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:17:17,077 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:17:17,445 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:17:17,450 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:17,451 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:17,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:17,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:17,474 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:17:17,479 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:17:17,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:17:17,488 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:17:17,501 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:17:17,529 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:17:17,530 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:17,531 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:17,533 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:17,533 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:17,536 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:17:17,538 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:17:17,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:17:17,613 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:17:17,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17 WrapperNode [2022-12-13 12:17:17,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:17:17,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:17:17,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:17:17,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:17:17,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,649 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-12-13 12:17:17,649 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:17:17,650 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:17:17,650 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:17:17,650 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:17:17,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,661 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,664 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:17:17,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:17:17,666 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:17:17,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:17:17,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (1/1) ... [2022-12-13 12:17:17,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:17:17,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:17:17,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:17:17,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:17:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 12:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:17:17,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:17:17,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:17:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-13 12:17:17,726 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-13 12:17:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:17:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:17:17,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:17:17,847 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:17:17,849 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:17:17,958 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:17:17,964 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:17:17,964 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:17:17,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:17:17 BoogieIcfgContainer [2022-12-13 12:17:17,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:17:17,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:17:17,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:17:17,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:17:17,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:17:16" (1/3) ... [2022-12-13 12:17:17,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b99748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:17:17, skipping insertion in model container [2022-12-13 12:17:17,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:17" (2/3) ... [2022-12-13 12:17:17,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b99748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:17:17, skipping insertion in model container [2022-12-13 12:17:17,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:17:17" (3/3) ... [2022-12-13 12:17:17,974 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i [2022-12-13 12:17:17,990 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:17:17,991 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:17:18,038 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:17:18,044 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6afaca3a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:17:18,044 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:17:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 12:17:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 12:17:18,056 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:17:18,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:17:18,057 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:17:18,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:17:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1996056410, now seen corresponding path program 1 times [2022-12-13 12:17:18,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:17:18,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709837253] [2022-12-13 12:17:18,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:18,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:17:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:18,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 12:17:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 12:17:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 12:17:18,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 12:17:18,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:17:18,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709837253] [2022-12-13 12:17:18,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709837253] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:17:18,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58513946] [2022-12-13 12:17:18,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:18,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:17:18,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:17:18,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:17:18,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:17:18,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:18,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 12:17:18,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:17:18,475 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:17:18,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:17:18,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58513946] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:17:18,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:17:18,476 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-12-13 12:17:18,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033308704] [2022-12-13 12:17:18,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:17:18,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:17:18,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:17:18,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:17:18,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:17:18,515 INFO L87 Difference]: Start difference. First operand has 31 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 24 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 12:17:18,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:17:18,546 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2022-12-13 12:17:18,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:17:18,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-12-13 12:17:18,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:17:18,555 INFO L225 Difference]: With dead ends: 52 [2022-12-13 12:17:18,555 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 12:17:18,558 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 12:17:18,561 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:17:18,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 96 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:17:18,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 12:17:18,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 12:17:18,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 12:17:18,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-12-13 12:17:18,591 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 21 [2022-12-13 12:17:18,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:17:18,592 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-12-13 12:17:18,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 12:17:18,592 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-12-13 12:17:18,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 12:17:18,593 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:17:18,593 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:17:18,599 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:17:18,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 12:17:18,795 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:17:18,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:17:18,797 INFO L85 PathProgramCache]: Analyzing trace with hash 268010891, now seen corresponding path program 1 times [2022-12-13 12:17:18,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:17:18,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469413978] [2022-12-13 12:17:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:18,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:17:18,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:17:18,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:17:18,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:17:18,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:17:18,946 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:17:18,947 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:17:18,949 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:17:18,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:17:18,953 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:17:18,956 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:17:18,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:17:18 BoogieIcfgContainer [2022-12-13 12:17:18,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:17:18,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:17:18,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:17:18,978 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:17:18,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:17:17" (3/4) ... [2022-12-13 12:17:18,981 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:17:18,981 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:17:18,981 INFO L158 Benchmark]: Toolchain (without parser) took 2278.17ms. Allocated memory is still 136.3MB. Free memory was 105.7MB in the beginning and 69.5MB in the end (delta: 36.2MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2022-12-13 12:17:18,981 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:17:18,982 INFO L158 Benchmark]: CACSL2BoogieTranslator took 909.94ms. Allocated memory is still 136.3MB. Free memory was 105.7MB in the beginning and 77.9MB in the end (delta: 27.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-12-13 12:17:18,982 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.03ms. Allocated memory is still 136.3MB. Free memory was 77.9MB in the beginning and 75.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:17:18,982 INFO L158 Benchmark]: Boogie Preprocessor took 16.31ms. Allocated memory is still 136.3MB. Free memory was 75.1MB in the beginning and 73.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:17:18,983 INFO L158 Benchmark]: RCFGBuilder took 299.68ms. Allocated memory is still 136.3MB. Free memory was 73.7MB in the beginning and 60.4MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:17:18,983 INFO L158 Benchmark]: TraceAbstraction took 1009.31ms. Allocated memory is still 136.3MB. Free memory was 59.6MB in the beginning and 69.5MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:17:18,983 INFO L158 Benchmark]: Witness Printer took 2.74ms. Allocated memory is still 136.3MB. Free memory is still 69.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:17:18,985 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 107.0MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 909.94ms. Allocated memory is still 136.3MB. Free memory was 105.7MB in the beginning and 77.9MB in the end (delta: 27.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.03ms. Allocated memory is still 136.3MB. Free memory was 77.9MB in the beginning and 75.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.31ms. Allocated memory is still 136.3MB. Free memory was 75.1MB in the beginning and 73.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.68ms. Allocated memory is still 136.3MB. Free memory was 73.7MB in the beginning and 60.4MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1009.31ms. Allocated memory is still 136.3MB. Free memory was 59.6MB in the beginning and 69.5MB in the end (delta: -9.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.74ms. Allocated memory is still 136.3MB. Free memory is still 69.5MB. 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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] [L1586] 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) [L1586] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741827:1073741831}, argv={1073741827:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1587] CALL CWE191_Integer_Underflow__int_fgets_postdec_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() 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, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] RET staticReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1574] COND TRUE staticReturnsTrue() [L1577] data-- VAL [data=-2147483648, data--=-2147483648, 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 31 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 106 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 4/6 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 [2022-12-13 12:17:18,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 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_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a38dc523d74c17307615d8080a3f21a0feb7188a383a17ebd1a3d9635bdb3153 --- 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 [2022-12-13 12:17:20,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:17:20,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:17:20,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:17:20,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:17:20,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:17:20,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:17:20,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:17:20,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:17:20,827 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:17:20,828 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:17:20,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:17:20,830 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:17:20,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:17:20,832 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:17:20,833 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:17:20,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:17:20,835 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:17:20,837 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:17:20,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:17:20,840 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:17:20,841 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:17:20,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:17:20,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:17:20,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:17:20,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:17:20,847 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:17:20,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:17:20,849 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:17:20,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:17:20,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:17:20,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:17:20,851 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:17:20,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:17:20,853 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:17:20,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:17:20,854 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:17:20,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:17:20,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:17:20,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:17:20,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:17:20,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 12:17:20,880 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:17:20,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:17:20,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:17:20,880 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:17:20,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:17:20,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:17:20,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:17:20,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:17:20,881 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:17:20,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:17:20,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:17:20,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:17:20,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:17:20,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:17:20,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:17:20,883 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 12:17:20,883 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 12:17:20,883 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:17:20,883 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 12:17:20,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:17:20,884 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:17:20,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:17:20,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:17:20,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:17:20,884 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:17:20,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:17:20,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:17:20,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:17:20,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:17:20,885 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 12:17:20,886 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 12:17:20,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:17:20,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:17:20,886 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:17:20,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:17:20,886 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 12:17:20,887 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:17:20,887 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a38dc523d74c17307615d8080a3f21a0feb7188a383a17ebd1a3d9635bdb3153 [2022-12-13 12:17:21,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:17:21,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:17:21,123 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:17:21,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:17:21,124 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:17:21,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i [2022-12-13 12:17:23,655 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:17:23,926 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:17:23,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i [2022-12-13 12:17:23,943 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data/11ed1843d/e431c7036ba2431aa39e4b17bf451038/FLAG57e0d3a32 [2022-12-13 12:17:23,958 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/data/11ed1843d/e431c7036ba2431aa39e4b17bf451038 [2022-12-13 12:17:23,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:17:23,962 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:17:23,963 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:17:23,963 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:17:23,967 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:17:23,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:17:23" (1/1) ... [2022-12-13 12:17:23,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d908362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:23, skipping insertion in model container [2022-12-13 12:17:23,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:17:23" (1/1) ... [2022-12-13 12:17:23,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:17:24,026 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:17:24,283 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:17:24,613 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:17:24,618 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:24,619 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:24,620 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:24,621 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:24,635 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:17:24,639 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:17:24,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:17:24,650 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:17:24,663 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:17:24,695 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:17:24,696 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:24,697 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:17:24,698 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:24,698 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:17:24,702 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 12:17:24,703 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:17:24,704 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:17:24,780 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:17:24,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24 WrapperNode [2022-12-13 12:17:24,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:17:24,782 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:17:24,782 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:17:24,782 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:17:24,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,808 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,825 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 12:17:24,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:17:24,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:17:24,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:17:24,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:17:24,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,832 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,834 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:17:24,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:17:24,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:17:24,848 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:17:24,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (1/1) ... [2022-12-13 12:17:24,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:17:24,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:17:24,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:17:24,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:17:24,897 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 12:17:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:17:24,898 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:17:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:17:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 12:17:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:17:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:17:24,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:17:24,898 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-13 12:17:24,899 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-13 12:17:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:17:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:17:24,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 12:17:25,017 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:17:25,019 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:17:25,135 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:17:25,139 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:17:25,139 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:17:25,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:17:25 BoogieIcfgContainer [2022-12-13 12:17:25,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:17:25,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:17:25,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:17:25,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:17:25,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:17:23" (1/3) ... [2022-12-13 12:17:25,145 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316a587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:17:25, skipping insertion in model container [2022-12-13 12:17:25,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:17:24" (2/3) ... [2022-12-13 12:17:25,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5316a587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:17:25, skipping insertion in model container [2022-12-13 12:17:25,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:17:25" (3/3) ... [2022-12-13 12:17:25,147 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_08_bad.i [2022-12-13 12:17:25,160 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:17:25,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:17:25,191 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:17:25,195 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33f36e88, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:17:25,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:17:25,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 12:17:25,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 12:17:25,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:17:25,204 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:17:25,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:17:25,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:17:25,207 INFO L85 PathProgramCache]: Analyzing trace with hash -918563445, now seen corresponding path program 1 times [2022-12-13 12:17:25,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:17:25,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893121920] [2022-12-13 12:17:25,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:25,217 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 [2022-12-13 12:17:25,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:17:25,218 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:17:25,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:17:25,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:17:25,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 12:17:25,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:17:25,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:17:25,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:17:25,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 12:17:25,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893121920] [2022-12-13 12:17:25,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893121920] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:17:25,358 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:17:25,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 12:17:25,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161159144] [2022-12-13 12:17:25,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:17:25,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:17:25,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 12:17:25,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:17:25,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:17:25,389 INFO L87 Difference]: Start difference. First operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 12:17:25,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:17:25,422 INFO L93 Difference]: Finished difference Result 48 states and 56 transitions. [2022-12-13 12:17:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:17:25,424 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-13 12:17:25,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:17:25,430 INFO L225 Difference]: With dead ends: 48 [2022-12-13 12:17:25,430 INFO L226 Difference]: Without dead ends: 20 [2022-12-13 12:17:25,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:17:25,435 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:17:25,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:17:25,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-12-13 12:17:25,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-12-13 12:17:25,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 12:17:25,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-12-13 12:17:25,462 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 19 [2022-12-13 12:17:25,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:17:25,462 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-12-13 12:17:25,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 12:17:25,463 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-12-13 12:17:25,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 12:17:25,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:17:25,464 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:17:25,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:17:25,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:17:25,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:17:25,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:17:25,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1561712550, now seen corresponding path program 1 times [2022-12-13 12:17:25,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 12:17:25,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [237790256] [2022-12-13 12:17:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:17:25,672 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 [2022-12-13 12:17:25,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 12:17:25,676 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 12:17:25,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:17:25,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:17:25,838 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:17:25,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:17:25,892 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 12:17:25,893 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:17:25,894 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:17:25,896 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:17:25,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:17:26,097 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 12:17:26,108 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 12:17:26,117 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:17:26,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:17:26 BoogieIcfgContainer [2022-12-13 12:17:26,172 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:17:26,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:17:26,173 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:17:26,173 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:17:26,173 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:17:25" (3/4) ... [2022-12-13 12:17:26,175 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 12:17:26,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:17:26,176 INFO L158 Benchmark]: Toolchain (without parser) took 2214.29ms. Allocated memory is still 73.4MB. Free memory was 48.2MB in the beginning and 25.0MB in the end (delta: 23.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-12-13 12:17:26,176 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:17:26,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 818.09ms. Allocated memory is still 73.4MB. Free memory was 48.0MB in the beginning and 40.4MB in the end (delta: 7.6MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-12-13 12:17:26,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.41ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 37.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:17:26,178 INFO L158 Benchmark]: Boogie Preprocessor took 22.28ms. Allocated memory is still 73.4MB. Free memory was 37.3MB in the beginning and 35.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:17:26,178 INFO L158 Benchmark]: RCFGBuilder took 292.69ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 40.6MB in the end (delta: -5.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-12-13 12:17:26,178 INFO L158 Benchmark]: TraceAbstraction took 1029.92ms. Allocated memory is still 73.4MB. Free memory was 39.6MB in the beginning and 25.3MB in the end (delta: 14.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-12-13 12:17:26,179 INFO L158 Benchmark]: Witness Printer took 2.66ms. Allocated memory is still 73.4MB. Free memory was 25.3MB in the beginning and 25.0MB in the end (delta: 383.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:17:26,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 36.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 818.09ms. Allocated memory is still 73.4MB. Free memory was 48.0MB in the beginning and 40.4MB in the end (delta: 7.6MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.41ms. Allocated memory is still 73.4MB. Free memory was 40.4MB in the beginning and 37.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.28ms. Allocated memory is still 73.4MB. Free memory was 37.3MB in the beginning and 35.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.69ms. Allocated memory is still 73.4MB. Free memory was 35.2MB in the beginning and 40.6MB in the end (delta: -5.4MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1029.92ms. Allocated memory is still 73.4MB. Free memory was 39.6MB in the beginning and 25.3MB in the end (delta: 14.3MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 2.66ms. Allocated memory is still 73.4MB. Free memory was 25.3MB in the beginning and 25.0MB in the end (delta: 383.0kB). 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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] [L1586] 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) [L1586] 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] [L1587] CALL CWE191_Integer_Underflow__int_fgets_postdec_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() 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, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] RET staticReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1574] COND TRUE staticReturnsTrue() [L1577] data-- VAL [data=-2147483648, data--=-2147483648, 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 90 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 [2022-12-13 12:17:26,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34297ec2-5f33-433a-9097-f0f003802b01/bin/uautomizer-uyxdKDjOR8/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