./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 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_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:12:34,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:12:34,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:12:34,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:12:34,532 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:12:34,533 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:12:34,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:12:34,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:12:34,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:12:34,540 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:12:34,541 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:12:34,542 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:12:34,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:12:34,550 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:12:34,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:12:34,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:12:34,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:12:34,554 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:12:34,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:12:34,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:12:34,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:12:34,570 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:12:34,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:12:34,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:12:34,590 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:12:34,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:12:34,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:12:34,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:12:34,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:12:34,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:12:34,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:12:34,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:12:34,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:12:34,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:12:34,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:12:34,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:12:34,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:12:34,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:12:34,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:12:34,601 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:12:34,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:12:34,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:12:34,630 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:12:34,631 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:12:34,632 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:12:34,632 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:12:34,633 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:12:34,633 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:12:34,634 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:12:34,634 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:12:34,634 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:12:34,635 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:12:34,635 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:12:34,636 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:12:34,636 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:12:34,636 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:12:34,637 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:12:34,637 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:12:34,637 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:12:34,638 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:12:34,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:12:34,639 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:12:34,639 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:12:34,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:12:34,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:12:34,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:12:34,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:12:34,641 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:12:34,641 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:12:34,642 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:12:34,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:12:34,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:12:34,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:12:34,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:12:34,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:12:34,644 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:12:34,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:12:34,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:12:34,645 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:12:34,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:12:34,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:12:34,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:12:34,646 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc [2022-11-23 15:12:34,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:12:34,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:12:34,958 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:12:34,959 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:12:34,960 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:12:34,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2022-11-23 15:12:38,202 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:12:38,573 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:12:38,574 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2022-11-23 15:12:38,602 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data/a445b0e20/c74635b58b064e619f2fee53b0a0c3c7/FLAG753914ea3 [2022-11-23 15:12:38,618 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data/a445b0e20/c74635b58b064e619f2fee53b0a0c3c7 [2022-11-23 15:12:38,621 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:12:38,623 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:12:38,625 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:12:38,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:12:38,629 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:12:38,630 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:38" (1/1) ... [2022-11-23 15:12:38,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33e70630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:38, skipping insertion in model container [2022-11-23 15:12:38,632 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:38" (1/1) ... [2022-11-23 15:12:38,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:12:38,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:12:39,122 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:12:39,686 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:12:39,698 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:12:39,723 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:12:39,791 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:12:39,928 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:12:39,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39 WrapperNode [2022-11-23 15:12:39,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:12:39,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:12:39,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:12:39,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:12:39,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:39,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:39,991 INFO L138 Inliner]: procedures = 500, calls = 59, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2022-11-23 15:12:39,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:12:39,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:12:39,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:12:39,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:12:40,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,017 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:12:40,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:12:40,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:12:40,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:12:40,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (1/1) ... [2022-11-23 15:12:40,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:12:40,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:12:40,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:12:40,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:12:40,168 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:12:40,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:12:40,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:12:40,169 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:12:40,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:12:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:12:40,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:12:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:12:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:12:40,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:12:40,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:12:40,446 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:12:40,449 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:12:40,638 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:12:40,722 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:12:40,722 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:12:40,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:40 BoogieIcfgContainer [2022-11-23 15:12:40,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:12:40,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:12:40,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:12:40,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:12:40,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:12:38" (1/3) ... [2022-11-23 15:12:40,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481740cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:40, skipping insertion in model container [2022-11-23 15:12:40,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:39" (2/3) ... [2022-11-23 15:12:40,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@481740cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:40, skipping insertion in model container [2022-11-23 15:12:40,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:40" (3/3) ... [2022-11-23 15:12:40,736 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2022-11-23 15:12:40,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:12:40,758 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:12:40,818 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:12:40,826 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f5d362d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:12:40,826 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:12:40,831 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:12:40,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-23 15:12:40,840 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:40,841 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 15:12:40,842 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:12:40,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:40,849 INFO L85 PathProgramCache]: Analyzing trace with hash 2123687601, now seen corresponding path program 1 times [2022-11-23 15:12:40,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:12:40,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504005449] [2022-11-23 15:12:40,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:40,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:12:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:12:41,110 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:12:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:12:41,207 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 15:12:41,209 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:12:41,211 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:12:41,213 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:12:41,214 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:12:41,219 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:12:41,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:12:41,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:12:41 BoogieIcfgContainer [2022-11-23 15:12:41,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:12:41,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:12:41,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:12:41,254 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:12:41,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:40" (3/4) ... [2022-11-23 15:12:41,259 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 15:12:41,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:12:41,261 INFO L158 Benchmark]: Toolchain (without parser) took 2637.59ms. Allocated memory is still 178.3MB. Free memory was 133.0MB in the beginning and 77.4MB in the end (delta: 55.6MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2022-11-23 15:12:41,261 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:12:41,262 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1304.08ms. Allocated memory is still 178.3MB. Free memory was 132.8MB in the beginning and 128.9MB in the end (delta: 3.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2022-11-23 15:12:41,263 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.44ms. Allocated memory is still 178.3MB. Free memory was 128.9MB in the beginning and 125.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:41,264 INFO L158 Benchmark]: Boogie Preprocessor took 51.58ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 124.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:41,264 INFO L158 Benchmark]: RCFGBuilder took 680.57ms. Allocated memory is still 178.3MB. Free memory was 123.7MB in the beginning and 103.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 15:12:41,265 INFO L158 Benchmark]: TraceAbstraction took 525.09ms. Allocated memory is still 178.3MB. Free memory was 102.7MB in the beginning and 77.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 15:12:41,266 INFO L158 Benchmark]: Witness Printer took 5.90ms. Allocated memory is still 178.3MB. Free memory was 77.6MB in the beginning and 77.4MB in the end (delta: 143.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:12:41,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1304.08ms. Allocated memory is still 178.3MB. Free memory was 132.8MB in the beginning and 128.9MB in the end (delta: 3.9MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.44ms. Allocated memory is still 178.3MB. Free memory was 128.9MB in the beginning and 125.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.58ms. Allocated memory is still 178.3MB. Free memory was 125.8MB in the beginning and 124.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 680.57ms. Allocated memory is still 178.3MB. Free memory was 123.7MB in the beginning and 103.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 525.09ms. Allocated memory is still 178.3MB. Free memory was 102.7MB in the beginning and 77.6MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.90ms. Allocated memory is still 178.3MB. Free memory was 77.6MB in the beginning and 77.4MB in the end (delta: 143.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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); [L1561] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1561] RET printLine("Calling bad()...") VAL [#in~argv={2147483650:2147483649}, argc=2147483648, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, unknown-#in~argc-unknown=2147483648] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] --data VAL [#in~dataArray={4:0}, data=-2147483648, dataArray={4:0}, 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 15:12:41,316 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:12:44,131 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:12:44,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:12:44,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:12:44,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:12:44,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:12:44,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:12:44,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:12:44,223 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:12:44,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:12:44,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:12:44,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:12:44,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:12:44,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:12:44,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:12:44,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:12:44,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:12:44,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:12:44,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:12:44,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:12:44,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:12:44,260 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:12:44,263 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:12:44,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:12:44,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:12:44,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:12:44,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:12:44,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:12:44,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:12:44,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:12:44,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:12:44,285 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:12:44,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:12:44,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:12:44,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:12:44,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:12:44,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:12:44,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:12:44,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:12:44,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:12:44,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:12:44,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 15:12:44,337 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:12:44,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:12:44,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:12:44,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:12:44,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:12:44,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:12:44,341 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:12:44,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:12:44,342 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:12:44,342 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:12:44,344 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:12:44,344 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:12:44,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:12:44,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:12:44,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:12:44,346 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:12:44,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:12:44,346 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:12:44,347 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 15:12:44,347 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 15:12:44,347 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:12:44,348 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 15:12:44,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:12:44,348 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:12:44,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:12:44,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:12:44,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 15:12:44,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:12:44,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:12:44,350 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:12:44,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:12:44,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:12:44,351 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 15:12:44,352 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 15:12:44,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:12:44,352 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:12:44,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 15:12:44,353 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e09fa54e2cc198b3eceea1602ee62bf8d422eab76499615a6f09e84520b578cc [2022-11-23 15:12:44,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:12:44,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:12:44,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:12:44,824 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:12:44,824 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:12:44,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2022-11-23 15:12:48,101 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:12:48,661 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:12:48,662 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2022-11-23 15:12:48,706 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data/458ac1a57/2da3d0cddd664aeeb684609b09ac96a6/FLAGe33b7f274 [2022-11-23 15:12:48,728 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/data/458ac1a57/2da3d0cddd664aeeb684609b09ac96a6 [2022-11-23 15:12:48,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:12:48,733 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:12:48,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:12:48,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:12:48,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:12:48,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:48" (1/1) ... [2022-11-23 15:12:48,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b971e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:48, skipping insertion in model container [2022-11-23 15:12:48,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:12:48" (1/1) ... [2022-11-23 15:12:48,749 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:12:48,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:12:49,395 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:12:49,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:12:49,944 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:12:49,966 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 15:12:50,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:12:50,207 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:12:50,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50 WrapperNode [2022-11-23 15:12:50,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:12:50,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:12:50,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:12:50,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:12:50,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,272 INFO L138 Inliner]: procedures = 505, calls = 59, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2022-11-23 15:12:50,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:12:50,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:12:50,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:12:50,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:12:50,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,310 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,311 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:12:50,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:12:50,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:12:50,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:12:50,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (1/1) ... [2022-11-23 15:12:50,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:12:50,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:12:50,389 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:12:50,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:12:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 15:12:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 15:12:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:12:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 15:12:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:12:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:12:50,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:12:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 15:12:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:12:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 15:12:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 15:12:50,637 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:12:50,639 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:12:50,837 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:12:50,843 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:12:50,844 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 15:12:50,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:50 BoogieIcfgContainer [2022-11-23 15:12:50,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:12:50,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:12:50,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:12:50,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:12:50,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:12:48" (1/3) ... [2022-11-23 15:12:50,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff0a57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:50, skipping insertion in model container [2022-11-23 15:12:50,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:12:50" (2/3) ... [2022-11-23 15:12:50,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff0a57d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:12:50, skipping insertion in model container [2022-11-23 15:12:50,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:50" (3/3) ... [2022-11-23 15:12:50,855 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_66_bad.i [2022-11-23 15:12:50,878 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:12:50,878 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 15:12:50,950 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:12:50,958 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4c3ee1c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:12:50,958 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 15:12:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:12:50,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 15:12:50,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:12:50,971 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:12:50,971 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 15:12:50,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:12:50,978 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-11-23 15:12:50,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 15:12:50,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1929640376] [2022-11-23 15:12:50,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:12:50,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:12:50,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 15:12:51,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-23 15:12:51,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-23 15:12:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:12:51,256 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 15:12:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 15:12:51,358 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 15:12:51,360 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 15:12:51,362 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 15:12:51,364 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 15:12:51,387 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:12:51,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-23 15:12:51,585 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 15:12:51,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:12:51,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:12:51 BoogieIcfgContainer [2022-11-23 15:12:51,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:12:51,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:12:51,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:12:51,623 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:12:51,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:12:50" (3/4) ... [2022-11-23 15:12:51,626 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 15:12:51,674 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:12:51,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:12:51,676 INFO L158 Benchmark]: Toolchain (without parser) took 2943.54ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 49.8MB in the beginning and 46.4MB in the end (delta: 3.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,677 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:12:51,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1473.42ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 49.5MB in the beginning and 62.9MB in the end (delta: -13.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.07ms. Allocated memory is still 96.5MB. Free memory was 62.5MB in the beginning and 59.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,679 INFO L158 Benchmark]: Boogie Preprocessor took 58.26ms. Allocated memory is still 96.5MB. Free memory was 59.6MB in the beginning and 57.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,680 INFO L158 Benchmark]: RCFGBuilder took 514.38ms. Allocated memory is still 96.5MB. Free memory was 57.5MB in the beginning and 66.8MB in the end (delta: -9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,680 INFO L158 Benchmark]: TraceAbstraction took 773.67ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 48.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,681 INFO L158 Benchmark]: Witness Printer took 52.22ms. Allocated memory is still 96.5MB. Free memory was 48.5MB in the beginning and 46.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:12:51,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 52.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1473.42ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 49.5MB in the beginning and 62.9MB in the end (delta: -13.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.07ms. Allocated memory is still 96.5MB. Free memory was 62.5MB in the beginning and 59.6MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.26ms. Allocated memory is still 96.5MB. Free memory was 59.6MB in the beginning and 57.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 514.38ms. Allocated memory is still 96.5MB. Free memory was 57.5MB in the beginning and 66.8MB in the end (delta: -9.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 773.67ms. Allocated memory is still 96.5MB. Free memory was 66.2MB in the beginning and 48.5MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 52.22ms. Allocated memory is still 96.5MB. Free memory was 48.5MB in the beginning and 46.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 - CounterExampleResult [Line: 1570]: integer overflow possible integer overflow possible We found a 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] [L1561] CALL printLine("Calling bad()...") VAL [#in~line={2:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1561] RET printLine("Calling bad()...") VAL [#in~argv={13:12}, argc=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, unknown-#in~argc-unknown=12] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_66_bad() [L1551] int data; [L1552] int dataArray[5]; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, dataArray={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=2147483647, rand()=0, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] dataArray[2] = data [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_66b_badSink(dataArray) [L1568] EXPR dataArray[2] [L1568] int data = dataArray[2]; [L1570] --data VAL [#in~dataArray={5:0}, data=-2147483648, dataArray={5:0}, 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-23 15:12:51,732 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4521ce2-5cf2-4876-bf04-c19d0f8c2410/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)