./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 e4ef6134414c48f1ed171828d8151daf214e475cbcb520d6db4354041586644b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:04:21,007 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:04:21,122 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 05:04:21,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:04:21,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:04:21,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:04:21,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:04:21,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:04:21,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:04:21,173 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:04:21,174 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:04:21,175 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:04:21,175 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:04:21,176 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:04:21,177 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:04:21,177 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:04:21,178 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:04:21,179 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:04:21,179 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:04:21,180 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:04:21,181 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:04:21,182 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:04:21,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:04:21,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:04:21,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:04:21,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:04:21,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:04:21,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:04:21,187 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:04:21,187 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:04:21,188 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:04:21,188 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:04:21,189 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:04:21,189 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:04:21,190 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:04:21,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:21,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:04:21,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:04:21,191 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:04:21,192 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:04:21,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:04:21,193 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:04:21,193 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:04:21,193 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:04:21,194 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4ef6134414c48f1ed171828d8151daf214e475cbcb520d6db4354041586644b [2023-11-19 05:04:21,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:04:21,524 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:04:21,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:04:21,528 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:04:21,529 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:04:21,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i [2023-11-19 05:04:24,756 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:04:25,180 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:04:25,181 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i [2023-11-19 05:04:25,223 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data/3b51031bb/a1fc2734cd124b4785d83edb4bb0cf51/FLAG1f715cbf8 [2023-11-19 05:04:25,243 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data/3b51031bb/a1fc2734cd124b4785d83edb4bb0cf51 [2023-11-19 05:04:25,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:04:25,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:04:25,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:25,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:04:25,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:04:25,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:25" (1/1) ... [2023-11-19 05:04:25,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75f8addc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:25, skipping insertion in model container [2023-11-19 05:04:25,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:25" (1/1) ... [2023-11-19 05:04:25,362 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:04:25,899 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:04:26,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:26,638 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:04:26,663 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:04:26,738 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:26,909 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:26,910 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:26,910 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:26,910 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:26,910 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:26,919 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:04:26,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26 WrapperNode [2023-11-19 05:04:26,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:26,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:26,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:04:26,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:04:26,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:26,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:26,997 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 93 [2023-11-19 05:04:26,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:26,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:04:26,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:04:26,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:04:27,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,009 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,014 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,021 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,029 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,033 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:04:27,034 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:04:27,034 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:04:27,034 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:04:27,035 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (1/1) ... [2023-11-19 05:04:27,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:27,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:04:27,090 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:04:27,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:04:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 05:04:27,134 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 05:04:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:04:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:04:27,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:04:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 05:04:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:04:27,332 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:04:27,335 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:04:27,646 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:04:27,955 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:04:27,955 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:04:27,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:27 BoogieIcfgContainer [2023-11-19 05:04:27,962 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:04:27,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:04:27,986 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:04:27,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:04:27,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:04:25" (1/3) ... [2023-11-19 05:04:27,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344ae5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:27, skipping insertion in model container [2023-11-19 05:04:27,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:26" (2/3) ... [2023-11-19 05:04:27,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344ae5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:27, skipping insertion in model container [2023-11-19 05:04:27,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:27" (3/3) ... [2023-11-19 05:04:27,995 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_45_bad.i [2023-11-19 05:04:28,017 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:04:28,018 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 05:04:28,080 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:04:28,089 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=LoopHeads, 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;@4968e037, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:04:28,089 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 05:04:28,094 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:04:28,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 05:04:28,104 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:28,105 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:04:28,106 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 05:04:28,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:28,114 INFO L85 PathProgramCache]: Analyzing trace with hash -359513109, now seen corresponding path program 1 times [2023-11-19 05:04:28,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:28,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988685358] [2023-11-19 05:04:28,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:28,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:04:28,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:04:28,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:04:28,689 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:04:28,691 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:04:28,692 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 05:04:28,695 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 05:04:28,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:04:28,704 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:04:28,713 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:04:28,765 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:04:28 BoogieIcfgContainer [2023-11-19 05:04:28,766 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:04:28,767 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:04:28,767 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:04:28,767 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:04:28,768 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:27" (3/4) ... [2023-11-19 05:04:28,774 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 05:04:28,775 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:04:28,777 INFO L158 Benchmark]: Toolchain (without parser) took 3522.81ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 104.6MB in the beginning and 118.7MB in the end (delta: -14.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-11-19 05:04:28,777 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:04:28,778 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1662.58ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 104.2MB in the beginning and 129.9MB in the end (delta: -25.7MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. [2023-11-19 05:04:28,779 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.24ms. Allocated memory is still 190.8MB. Free memory was 129.9MB in the beginning and 126.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:04:28,780 INFO L158 Benchmark]: Boogie Preprocessor took 34.81ms. Allocated memory is still 190.8MB. Free memory was 126.8MB in the beginning and 125.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:04:28,781 INFO L158 Benchmark]: RCFGBuilder took 928.44ms. Allocated memory is still 190.8MB. Free memory was 125.7MB in the beginning and 88.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2023-11-19 05:04:28,781 INFO L158 Benchmark]: TraceAbstraction took 780.98ms. Allocated memory is still 190.8MB. Free memory was 154.2MB in the beginning and 118.7MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 05:04:28,782 INFO L158 Benchmark]: Witness Printer took 8.91ms. Allocated memory is still 190.8MB. Free memory was 118.7MB in the beginning and 118.7MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:04:28,785 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 44.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1662.58ms. Allocated memory was 148.9MB in the beginning and 190.8MB in the end (delta: 41.9MB). Free memory was 104.2MB in the beginning and 129.9MB in the end (delta: -25.7MB). Peak memory consumption was 42.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.24ms. Allocated memory is still 190.8MB. Free memory was 129.9MB in the beginning and 126.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.81ms. Allocated memory is still 190.8MB. Free memory was 126.8MB in the beginning and 125.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 928.44ms. Allocated memory is still 190.8MB. Free memory was 125.7MB in the beginning and 88.0MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 780.98ms. Allocated memory is still 190.8MB. Free memory was 154.2MB in the beginning and 118.7MB in the end (delta: 35.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 8.91ms. Allocated memory is still 190.8MB. Free memory was 118.7MB in the beginning and 118.7MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1556]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1564. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_rand_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData; [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=4294967300, argc=4294967300, argv={4294967302:4294967301}, argv={4294967302:4294967301}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1564] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] CWE191_Integer_Underflow__int_rand_multiply_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_rand_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=-2147450881, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147450881, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=-2147450881, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147450881, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=-2147450881, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147450881, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1556]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=14occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 [2023-11-19 05:04:28,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 e4ef6134414c48f1ed171828d8151daf214e475cbcb520d6db4354041586644b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:04:31,808 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:04:31,963 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 05:04:31,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:04:31,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:04:32,015 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:04:32,017 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:04:32,018 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:04:32,019 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:04:32,024 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:04:32,025 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:04:32,025 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:04:32,026 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:04:32,027 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:04:32,028 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:04:32,028 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:04:32,029 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:04:32,030 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:04:32,030 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:04:32,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:04:32,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:04:32,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:04:32,033 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 05:04:32,033 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 05:04:32,034 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:04:32,034 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 05:04:32,035 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:04:32,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:04:32,035 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:04:32,036 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:04:32,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 05:04:32,037 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:04:32,038 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:32,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:04:32,039 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:04:32,039 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:04:32,039 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 05:04:32,039 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 05:04:32,040 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:04:32,041 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:04:32,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:04:32,041 INFO L153 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_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4ef6134414c48f1ed171828d8151daf214e475cbcb520d6db4354041586644b [2023-11-19 05:04:32,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:04:32,490 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:04:32,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:04:32,494 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:04:32,495 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:04:32,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i [2023-11-19 05:04:35,879 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:04:36,422 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:04:36,423 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_45_bad.i [2023-11-19 05:04:36,468 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data/ba3bad978/028b8b51026d49dd902fa9ab1173b40e/FLAGf2cdfbd24 [2023-11-19 05:04:36,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/data/ba3bad978/028b8b51026d49dd902fa9ab1173b40e [2023-11-19 05:04:36,494 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:04:36,496 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:04:36,499 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:36,499 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:04:36,505 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:04:36,506 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:36" (1/1) ... [2023-11-19 05:04:36,508 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34e9ae6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:36, skipping insertion in model container [2023-11-19 05:04:36,508 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:36" (1/1) ... [2023-11-19 05:04:36,623 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:04:37,169 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:04:37,762 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:37,778 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:04:37,811 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 05:04:37,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:38,156 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:38,157 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:38,157 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:38,157 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:38,157 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:04:38,166 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:04:38,166 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38 WrapperNode [2023-11-19 05:04:38,167 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:38,168 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:38,168 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:04:38,169 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:04:38,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,233 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,281 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-19 05:04:38,281 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:38,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:04:38,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:04:38,283 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:04:38,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,312 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,313 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,332 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,335 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,345 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:04:38,346 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:04:38,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:04:38,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:04:38,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (1/1) ... [2023-11-19 05:04:38,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:38,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:04:38,409 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:04:38,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:04:38,463 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 05:04:38,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 05:04:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 05:04:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:04:38,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:04:38,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:04:38,466 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 05:04:38,670 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:04:38,673 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:04:38,885 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:04:38,896 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:04:38,898 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:04:38,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:38 BoogieIcfgContainer [2023-11-19 05:04:38,902 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:04:38,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:04:38,906 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:04:38,909 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:04:38,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:04:36" (1/3) ... [2023-11-19 05:04:38,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b81305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:38, skipping insertion in model container [2023-11-19 05:04:38,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:38" (2/3) ... [2023-11-19 05:04:38,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b81305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:38, skipping insertion in model container [2023-11-19 05:04:38,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:38" (3/3) ... [2023-11-19 05:04:38,916 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_45_bad.i [2023-11-19 05:04:38,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:04:38,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 05:04:39,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:04:39,015 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=LoopHeads, 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;@521506d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:04:39,016 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 05:04:39,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 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) [2023-11-19 05:04:39,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 05:04:39,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:39,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:04:39,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 05:04:39,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:39,040 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2023-11-19 05:04:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 05:04:39,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [929757105] [2023-11-19 05:04:39,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:39,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-19 05:04:39,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 05:04:39,068 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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) [2023-11-19 05:04:39,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:04:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:04:39,248 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:04:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:04:39,339 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 05:04:39,341 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:04:39,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 05:04:39,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 05:04:39,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:04:39,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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 [2023-11-19 05:04:39,554 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 05:04:39,559 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:04:39,589 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-19 05:04:39,591 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-19 05:04:39,600 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-19 05:04:39,600 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-19 05:04:39,600 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-19 05:04:39,617 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:04:39 BoogieIcfgContainer [2023-11-19 05:04:39,617 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:04:39,620 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:04:39,620 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:04:39,620 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:04:39,621 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:38" (3/4) ... [2023-11-19 05:04:39,622 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:04:39,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-19 05:04:39,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-19 05:04:39,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-19 05:04:39,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-19 05:04:39,650 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-19 05:04:39,723 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:04:39,732 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:04:39,734 INFO L158 Benchmark]: Toolchain (without parser) took 3237.90ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 54.1MB in the beginning and 68.2MB in the end (delta: -14.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,734 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 92.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1668.19ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 53.9MB in the beginning and 48.4MB in the end (delta: 5.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,738 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.48ms. Allocated memory is still 100.7MB. Free memory was 48.4MB in the beginning and 45.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,740 INFO L158 Benchmark]: Boogie Preprocessor took 63.07ms. Allocated memory is still 100.7MB. Free memory was 45.4MB in the beginning and 72.7MB in the end (delta: -27.3MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,741 INFO L158 Benchmark]: RCFGBuilder took 556.06ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 59.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,742 INFO L158 Benchmark]: TraceAbstraction took 711.89ms. Allocated memory is still 100.7MB. Free memory was 58.5MB in the beginning and 70.9MB in the end (delta: -12.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,743 INFO L158 Benchmark]: Witness Printer took 112.73ms. Allocated memory is still 100.7MB. Free memory was 70.9MB in the beginning and 68.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:04:39,748 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 81.8MB. Free memory was 57.3MB in the beginning and 57.2MB in the end (delta: 92.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1668.19ms. Allocated memory was 81.8MB in the beginning and 100.7MB in the end (delta: 18.9MB). Free memory was 53.9MB in the beginning and 48.4MB in the end (delta: 5.4MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.48ms. Allocated memory is still 100.7MB. Free memory was 48.4MB in the beginning and 45.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.07ms. Allocated memory is still 100.7MB. Free memory was 45.4MB in the beginning and 72.7MB in the end (delta: -27.3MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * RCFGBuilder took 556.06ms. Allocated memory is still 100.7MB. Free memory was 72.7MB in the beginning and 59.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 711.89ms. Allocated memory is still 100.7MB. Free memory was 58.5MB in the beginning and 70.9MB in the end (delta: -12.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 112.73ms. Allocated memory is still 100.7MB. Free memory was 70.9MB in the beginning and 68.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - 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: 1556]: 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); [L1548] static int CWE191_Integer_Underflow__int_rand_multiply_45_badData; [L1549] static int CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1571] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1571] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL CWE191_Integer_Underflow__int_rand_multiply_45_bad() [L1562] int data; [L1563] data = 0 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1564] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1565] CWE191_Integer_Underflow__int_rand_multiply_45_badData = data [L1566] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_rand_multiply_45_badData; VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=-2147483647, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] COND TRUE data < 0 VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=-2147483647, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] data * 2 VAL [CWE191_Integer_Underflow__int_rand_multiply_45_badData=-2147483647, CWE191_Integer_Underflow__int_rand_multiply_45_goodB2GData=0, CWE191_Integer_Underflow__int_rand_multiply_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1556]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=23occurred 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, 12 NumberOfCodeBlocks, 12 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! [2023-11-19 05:04:39,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5639c27-2d58-4deb-9bae-a5fe81c40054/bin/utaipan-verify-t7M7D8N6sZ/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)