./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 6d91b8356ddd7726281d647788be21c92f24a6245eaef0d9cae32a7294e1e923 --- 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 14:23:42,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:23:42,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:23:42,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:23:42,659 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:23:42,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:23:42,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:23:42,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:23:42,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:23:42,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:23:42,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:23:42,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:23:42,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:23:42,674 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:23:42,675 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:23:42,676 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:23:42,677 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:23:42,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:23:42,680 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:23:42,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:23:42,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:23:42,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:23:42,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:23:42,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:23:42,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:23:42,703 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:23:42,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:23:42,704 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:23:42,705 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:23:42,706 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:23:42,706 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:23:42,707 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:23:42,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:23:42,708 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:23:42,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:23:42,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:23:42,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:23:42,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:23:42,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:23:42,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:23:42,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:23:42,714 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 14:23:42,737 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:23:42,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:23:42,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:23:42,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:23:42,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:23:42,739 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:23:42,740 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:23:42,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:23:42,740 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:23:42,740 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:23:42,741 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:23:42,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:23:42,741 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:23:42,741 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:23:42,742 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:23:42,742 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:23:42,742 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:23:42,743 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:23:42,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:23:42,744 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:23:42,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:23:42,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:23:42,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:23:42,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:23:42,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:23:42,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:23:42,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:23:42,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:23:42,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:23:42,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:23:42,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:23:42,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:42,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:23:42,747 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:23:42,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:23:42,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:23:42,748 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:23:42,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:23:42,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:23:42,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:23:42,749 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_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d91b8356ddd7726281d647788be21c92f24a6245eaef0d9cae32a7294e1e923 [2022-11-23 14:23:43,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:23:43,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:23:43,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:23:43,033 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:23:43,034 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:23:43,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i [2022-11-23 14:23:46,203 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:23:46,636 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:23:46,637 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i [2022-11-23 14:23:46,662 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data/252784f7f/c28db49d615e4561b68536fd70e6b473/FLAGf35331da8 [2022-11-23 14:23:46,676 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data/252784f7f/c28db49d615e4561b68536fd70e6b473 [2022-11-23 14:23:46,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:23:46,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:23:46,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:46,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:23:46,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:23:46,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:46" (1/1) ... [2022-11-23 14:23:46,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2001960e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:46, skipping insertion in model container [2022-11-23 14:23:46,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:46" (1/1) ... [2022-11-23 14:23:46,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:23:46,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:23:47,166 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:23:47,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:47,682 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:23:47,702 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:23:47,809 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:47,990 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:23:47,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47 WrapperNode [2022-11-23 14:23:47,991 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:47,992 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:47,993 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:23:47,993 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:23:48,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,063 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,102 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-23 14:23:48,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:48,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:23:48,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:23:48,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:23:48,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,126 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,127 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:23:48,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:23:48,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:23:48,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:23:48,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (1/1) ... [2022-11-23 14:23:48,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:48,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:48,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:23:48,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:23:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 14:23:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 14:23:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:23:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:23:48,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:23:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 14:23:48,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:23:48,353 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:23:48,355 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:48,520 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:48,739 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:48,739 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:23:48,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:48 BoogieIcfgContainer [2022-11-23 14:23:48,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:48,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:48,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:48,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:48,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:46" (1/3) ... [2022-11-23 14:23:48,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4535c876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:48, skipping insertion in model container [2022-11-23 14:23:48,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:47" (2/3) ... [2022-11-23 14:23:48,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4535c876 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:48, skipping insertion in model container [2022-11-23 14:23:48,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:48" (3/3) ... [2022-11-23 14:23:48,750 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_10_bad.i [2022-11-23 14:23:48,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:48,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:23:48,827 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:48,834 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;@2bda0cf2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:48,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:23:48,840 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 states have internal predecessors, (13), 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 14:23:48,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:23:48,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:48,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:48,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:23:48,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:48,858 INFO L85 PathProgramCache]: Analyzing trace with hash 198000526, now seen corresponding path program 1 times [2022-11-23 14:23:48,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:23:48,871 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295561366] [2022-11-23 14:23:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:48,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:23:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:23:49,146 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:23:49,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:23:49,212 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:23:49,214 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:23:49,216 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 14:23:49,218 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 14:23:49,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:23:49,223 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:23:49,228 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:23:49,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:23:49 BoogieIcfgContainer [2022-11-23 14:23:49,254 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:23:49,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:23:49,255 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:23:49,255 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:23:49,255 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:48" (3/4) ... [2022-11-23 14:23:49,259 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:23:49,259 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:23:49,260 INFO L158 Benchmark]: Toolchain (without parser) took 2580.42ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 72.5MB in the end (delta: 62.2MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2022-11-23 14:23:49,261 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:23:49,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1310.64ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 120.7MB in the end (delta: 13.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. [2022-11-23 14:23:49,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.80ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 117.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:23:49,263 INFO L158 Benchmark]: Boogie Preprocessor took 25.12ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 116.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:23:49,263 INFO L158 Benchmark]: RCFGBuilder took 611.68ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 95.5MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-23 14:23:49,264 INFO L158 Benchmark]: TraceAbstraction took 509.87ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 73.3MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 14:23:49,264 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 167.8MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:23:49,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 121.6MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1310.64ms. Allocated memory is still 167.8MB. Free memory was 134.6MB in the beginning and 120.7MB in the end (delta: 13.9MB). Peak memory consumption was 56.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.80ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 117.4MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.12ms. Allocated memory is still 167.8MB. Free memory was 117.4MB in the beginning and 116.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 611.68ms. Allocated memory is still 167.8MB. Free memory was 116.2MB in the beginning and 95.5MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 509.87ms. Allocated memory is still 167.8MB. Free memory was 95.2MB in the beginning and 73.3MB in the end (delta: 21.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 167.8MB. Free memory is still 72.5MB. 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: 1560]: 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); [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [#in~argv={3221225475:3221225474}, argc=3221225473, argv={3221225475:3221225474}, 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=3221225473] [L1569] CALL CWE191_Integer_Underflow__int_rand_multiply_10_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE \read(globalTrue) [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)) [L1556] COND TRUE \read(globalTrue) VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=3221225472] [L1558] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=3221225472] [L1560] data * 2 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=3221225472] - UnprovableResult [Line: 1560]: 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, 15 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=15occurred 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, 8 NumberOfCodeBlocks, 8 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 14:23:49,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 6d91b8356ddd7726281d647788be21c92f24a6245eaef0d9cae32a7294e1e923 --- 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 14:23:51,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:23:51,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:23:51,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:23:51,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:23:51,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:23:51,965 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:23:51,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:23:51,968 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:23:51,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:23:51,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:23:51,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:23:51,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:23:51,973 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:23:51,974 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:23:51,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:23:51,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:23:51,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:23:51,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:23:51,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:23:51,982 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:23:51,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:23:51,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:23:51,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:23:51,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:23:51,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:23:51,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:23:51,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:23:51,990 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:23:51,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:23:51,992 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:23:51,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:23:51,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:23:51,994 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:23:51,995 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:23:51,995 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:23:51,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:23:51,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:23:51,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:23:51,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:23:51,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:23:51,999 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-23 14:23:52,032 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:23:52,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:23:52,033 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:23:52,033 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:23:52,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:23:52,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:23:52,035 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:23:52,035 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:23:52,035 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:23:52,035 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:23:52,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:23:52,036 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:23:52,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:23:52,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 14:23:52,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:23:52,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:23:52,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:23:52,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:23:52,038 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:23:52,038 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:23:52,038 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 14:23:52,038 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:23:52,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:23:52,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:23:52,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:23:52,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:23:52,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:23:52,039 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:23:52,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:52,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:23:52,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:23:52,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:23:52,040 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:23:52,041 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:23:52,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:23:52,041 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:23:52,041 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:23:52,041 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_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d91b8356ddd7726281d647788be21c92f24a6245eaef0d9cae32a7294e1e923 [2022-11-23 14:23:52,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:23:52,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:23:52,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:23:52,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:23:52,409 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:23:52,411 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i [2022-11-23 14:23:55,463 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:23:55,898 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:23:55,900 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_10_bad.i [2022-11-23 14:23:55,921 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data/25c728d8a/a23d671aed3d43e098ebbc179d0c5d26/FLAGa972cda9e [2022-11-23 14:23:55,941 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/data/25c728d8a/a23d671aed3d43e098ebbc179d0c5d26 [2022-11-23 14:23:55,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:23:55,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:23:55,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:55,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:23:55,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:23:55,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:55" (1/1) ... [2022-11-23 14:23:55,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8844fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:55, skipping insertion in model container [2022-11-23 14:23:55,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:23:55" (1/1) ... [2022-11-23 14:23:55,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:23:56,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:23:56,473 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:23:57,014 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:57,027 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:23:57,049 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-23 14:23:57,188 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:23:57,317 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:23:57,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57 WrapperNode [2022-11-23 14:23:57,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:23:57,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:57,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:23:57,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:23:57,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,386 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2022-11-23 14:23:57,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:23:57,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:23:57,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:23:57,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:23:57,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,418 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,444 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:23:57,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:23:57,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:23:57,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:23:57,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (1/1) ... [2022-11-23 14:23:57,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:23:57,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:23:57,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:23:57,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:23:57,542 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-23 14:23:57,542 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-23 14:23:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:23:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:23:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:23:57,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:23:57,543 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-23 14:23:57,748 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:23:57,750 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:23:57,957 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:23:57,962 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:23:57,962 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-23 14:23:57,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:57 BoogieIcfgContainer [2022-11-23 14:23:57,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:23:57,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:23:57,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:23:57,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:23:57,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:23:55" (1/3) ... [2022-11-23 14:23:57,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ce41ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:57, skipping insertion in model container [2022-11-23 14:23:57,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:23:57" (2/3) ... [2022-11-23 14:23:57,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ce41ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:23:57, skipping insertion in model container [2022-11-23 14:23:57,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:57" (3/3) ... [2022-11-23 14:23:57,981 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_10_bad.i [2022-11-23 14:23:57,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:23:58,000 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-23 14:23:58,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:23:58,068 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;@33eb767d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:23:58,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-23 14:23:58,073 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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 14:23:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-23 14:23:58,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:58,084 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:58,084 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:23:58,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1258159597, now seen corresponding path program 1 times [2022-11-23 14:23:58,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:58,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555634001] [2022-11-23 14:23:58,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:58,113 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 14:23:58,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:58,122 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 14:23:58,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 14:23:58,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:23:58,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-23 14:23:58,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:23:58,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:23:58,358 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:23:58,358 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:23:58,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555634001] [2022-11-23 14:23:58,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555634001] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:23:58,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:23:58,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:23:58,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142449272] [2022-11-23 14:23:58,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:23:58,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 14:23:58,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:23:58,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 14:23:58,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:58,413 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 20 states have internal predecessors, (25), 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) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:23:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:23:58,454 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2022-11-23 14:23:58,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 14:23:58,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-23 14:23:58,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:23:58,464 INFO L225 Difference]: With dead ends: 41 [2022-11-23 14:23:58,464 INFO L226 Difference]: Without dead ends: 17 [2022-11-23 14:23:58,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 14:23:58,472 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:23:58,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:23:58,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-23 14:23:58,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-23 14:23:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:23:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2022-11-23 14:23:58,536 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 12 [2022-11-23 14:23:58,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:23:58,536 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2022-11-23 14:23:58,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 14:23:58,537 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2022-11-23 14:23:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-23 14:23:58,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:23:58,538 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:23:58,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 14:23:58,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 14:23:58,753 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-23 14:23:58,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:23:58,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1822236216, now seen corresponding path program 1 times [2022-11-23 14:23:58,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:23:58,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [290011855] [2022-11-23 14:23:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:23:58,754 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 14:23:58,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:23:58,756 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 14:23:58,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 (3)] Waiting until timeout for monitored process [2022-11-23 14:23:58,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:23:58,905 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:23:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:23:58,991 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-23 14:23:58,992 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:23:58,994 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-23 14:23:58,996 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-23 14:23:59,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:23:59,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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 14:23:59,199 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:23:59,203 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:23:59,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:23:59 BoogieIcfgContainer [2022-11-23 14:23:59,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:23:59,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:23:59,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:23:59,232 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:23:59,233 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:23:57" (3/4) ... [2022-11-23 14:23:59,235 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-23 14:23:59,282 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:23:59,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:23:59,283 INFO L158 Benchmark]: Toolchain (without parser) took 3334.95ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 47.0MB in the beginning and 50.6MB in the end (delta: -3.6MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,283 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:23:59,284 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1367.40ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 46.7MB in the beginning and 47.8MB in the end (delta: -1.1MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,284 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.41ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 44.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,284 INFO L158 Benchmark]: Boogie Preprocessor took 62.80ms. Allocated memory is still 94.4MB. Free memory was 44.5MB in the beginning and 42.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,285 INFO L158 Benchmark]: RCFGBuilder took 513.66ms. Allocated memory is still 94.4MB. Free memory was 42.5MB in the beginning and 57.1MB in the end (delta: -14.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,285 INFO L158 Benchmark]: TraceAbstraction took 1265.94ms. Allocated memory is still 94.4MB. Free memory was 56.7MB in the beginning and 53.2MB in the end (delta: 3.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,286 INFO L158 Benchmark]: Witness Printer took 49.84ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 50.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:23:59,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1367.40ms. Allocated memory was 73.4MB in the beginning and 94.4MB in the end (delta: 21.0MB). Free memory was 46.7MB in the beginning and 47.8MB in the end (delta: -1.1MB). Peak memory consumption was 33.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.41ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 44.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.80ms. Allocated memory is still 94.4MB. Free memory was 44.5MB in the beginning and 42.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 513.66ms. Allocated memory is still 94.4MB. Free memory was 42.5MB in the beginning and 57.1MB in the end (delta: -14.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1265.94ms. Allocated memory is still 94.4MB. Free memory was 56.7MB in the beginning and 53.2MB in the end (delta: 3.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 49.84ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 50.6MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. 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: 1560]: 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] [L1568] 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) [L1568] 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] [L1569] CALL CWE191_Integer_Underflow__int_rand_multiply_10_bad() [L1550] int data; [L1551] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE \read(globalTrue) [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, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=1, rand()=2, 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)) [L1556] COND TRUE \read(globalTrue) 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] [L1558] COND TRUE data < 0 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] [L1560] 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] - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 25 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 14:23:59,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6267a9c-3ad5-4465-ae48-c12a4760ccc0/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)