./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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 f28c0bccdbbc981c8239e8501bf6f11c7e5f823114cc4ea7d25f1d3a8b19616f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:50:12,117 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:50:12,188 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:50:12,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:12,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:12,220 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:12,221 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:12,222 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:12,223 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:12,224 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:12,224 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:12,225 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:12,225 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:12,226 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:50:12,227 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:12,227 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:12,228 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:50:12,229 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:50:12,229 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:12,230 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:50:12,231 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:50:12,231 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:50:12,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:12,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:50:12,233 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:50:12,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:12,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:50:12,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:12,236 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:50:12,236 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:50:12,237 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:50:12,237 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:50:12,237 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:12,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:12,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:12,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:12,239 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:12,240 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:12,240 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:50:12,241 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:50:12,241 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:50:12,242 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:50:12,242 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:12,243 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:12,243 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_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f28c0bccdbbc981c8239e8501bf6f11c7e5f823114cc4ea7d25f1d3a8b19616f [2023-11-19 04:50:12,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:12,631 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:12,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:12,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:12,637 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:12,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i [2023-11-19 04:50:15,781 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:16,307 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:16,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i [2023-11-19 04:50:16,338 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data/4fccea81a/0941f9b098204d1f8517b3e373598750/FLAG35cedec02 [2023-11-19 04:50:16,360 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data/4fccea81a/0941f9b098204d1f8517b3e373598750 [2023-11-19 04:50:16,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:16,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:16,372 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:16,373 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:16,378 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:16,379 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:16" (1/1) ... [2023-11-19 04:50:16,380 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc698b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:16, skipping insertion in model container [2023-11-19 04:50:16,380 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:16" (1/1) ... [2023-11-19 04:50:16,468 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:16,878 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:50:17,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:17,560 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:17,583 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:50:17,643 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:17,804 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:17,804 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:17,804 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:17,804 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:17,805 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:17,813 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:17,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17 WrapperNode [2023-11-19 04:50:17,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:17,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:17,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:17,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:17,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,881 INFO L138 Inliner]: procedures = 500, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2023-11-19 04:50:17,882 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:17,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:17,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:17,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:17,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,897 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,897 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,911 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:17,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:17,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:17,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:17,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (1/1) ... [2023-11-19 04:50:17,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:17,958 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:17,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:50:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:50:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:50:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:50:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:50:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:50:18,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:50:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:50:18,185 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:18,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:18,464 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:18,822 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:18,824 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:50:18,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:18 BoogieIcfgContainer [2023-11-19 04:50:18,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:18,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:18,836 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:18,841 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:18,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:16" (1/3) ... [2023-11-19 04:50:18,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c6bdcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:18, skipping insertion in model container [2023-11-19 04:50:18,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:17" (2/3) ... [2023-11-19 04:50:18,844 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31c6bdcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:18, skipping insertion in model container [2023-11-19 04:50:18,845 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:18" (3/3) ... [2023-11-19 04:50:18,846 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_63_bad.i [2023-11-19 04:50:18,867 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:18,867 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:50:18,912 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:18,920 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;@7b5b6696, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:18,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:50:18,924 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 04:50:18,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 04:50:18,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:18,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:18,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:50:18,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:18,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1248863832, now seen corresponding path program 1 times [2023-11-19 04:50:18,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:50:18,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125892866] [2023-11-19 04:50:18,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:18,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:50:19,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:19,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:50:19,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:19,579 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 04:50:19,581 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:50:19,582 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:50:19,585 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:50:19,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:50:19,590 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:50:19,603 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:50:19,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:50:19 BoogieIcfgContainer [2023-11-19 04:50:19,637 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:50:19,639 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:50:19,639 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:50:19,639 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:50:19,640 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:18" (3/4) ... [2023-11-19 04:50:19,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:50:19,646 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:50:19,647 INFO L158 Benchmark]: Toolchain (without parser) took 3279.33ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 90.9MB in the beginning and 50.9MB in the end (delta: 40.0MB). Peak memory consumption was 68.9MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,648 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 127.9MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:19,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1441.37ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 90.9MB in the beginning and 95.7MB in the end (delta: -4.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.65ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 92.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,656 INFO L158 Benchmark]: Boogie Preprocessor took 32.52ms. Allocated memory is still 155.2MB. Free memory was 92.3MB in the beginning and 90.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:19,657 INFO L158 Benchmark]: RCFGBuilder took 916.26ms. Allocated memory is still 155.2MB. Free memory was 90.9MB in the beginning and 98.1MB in the end (delta: -7.3MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,657 INFO L158 Benchmark]: TraceAbstraction took 800.99ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 52.0MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,659 INFO L158 Benchmark]: Witness Printer took 7.26ms. Allocated memory is still 155.2MB. Free memory was 52.0MB in the beginning and 50.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:19,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 127.9MB. Free memory is still 70.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1441.37ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 90.9MB in the beginning and 95.7MB in the end (delta: -4.8MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.65ms. Allocated memory is still 155.2MB. Free memory was 95.7MB in the beginning and 92.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.52ms. Allocated memory is still 155.2MB. Free memory was 92.3MB in the beginning and 90.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 916.26ms. Allocated memory is still 155.2MB. Free memory was 90.9MB in the beginning and 98.1MB in the end (delta: -7.3MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 800.99ms. Allocated memory is still 155.2MB. Free memory was 98.1MB in the beginning and 52.0MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 7.26ms. Allocated memory is still 155.2MB. Free memory was 52.0MB in the beginning and 50.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1553. 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); [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=8589934595, argc=8589934595, argv={8589934598:8589934597}, argv={8589934598:8589934597}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL CWE191_Integer_Underflow__int_rand_multiply_63_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1553] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_63b_badSink(&data) [L1566] EXPR \read(*dataPtr) [L1566] int data = *dataPtr; [L1567] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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 04:50:19,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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 f28c0bccdbbc981c8239e8501bf6f11c7e5f823114cc4ea7d25f1d3a8b19616f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:50:22,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:50:22,524 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-19 04:50:22,533 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:50:22,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:50:22,573 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:50:22,574 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:50:22,574 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:50:22,575 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:50:22,580 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:50:22,581 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:50:22,581 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:50:22,582 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:50:22,583 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:50:22,584 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:50:22,584 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:50:22,585 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:50:22,586 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:50:22,586 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:50:22,587 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:50:22,588 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:50:22,588 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:50:22,589 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:50:22,589 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:50:22,589 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:50:22,590 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:50:22,590 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:50:22,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:50:22,591 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:50:22,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:50:22,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 04:50:22,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:50:22,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:22,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:50:22,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:50:22,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:50:22,594 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:50:22,595 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:50:22,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:50:22,596 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:50:22,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:50:22,596 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_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f28c0bccdbbc981c8239e8501bf6f11c7e5f823114cc4ea7d25f1d3a8b19616f [2023-11-19 04:50:23,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:50:23,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:50:23,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:50:23,047 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:50:23,047 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:50:23,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i [2023-11-19 04:50:26,449 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:50:26,966 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:50:26,967 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_63_bad.i [2023-11-19 04:50:26,995 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data/0804980ed/1a349ae52e4d467ca5dfb1a861527950/FLAG3b762cb80 [2023-11-19 04:50:27,014 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/data/0804980ed/1a349ae52e4d467ca5dfb1a861527950 [2023-11-19 04:50:27,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:50:27,021 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:50:27,025 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:27,025 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:50:27,030 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:50:27,031 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:27" (1/1) ... [2023-11-19 04:50:27,032 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400af8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:27, skipping insertion in model container [2023-11-19 04:50:27,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:50:27" (1/1) ... [2023-11-19 04:50:27,119 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:50:27,597 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:50:28,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:28,396 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:50:28,436 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-19 04:50:28,510 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:50:28,698 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:28,698 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:28,699 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:28,699 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:28,699 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:50:28,707 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:50:28,707 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28 WrapperNode [2023-11-19 04:50:28,707 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:50:28,708 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:28,709 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:50:28,709 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:50:28,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,746 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,772 INFO L138 Inliner]: procedures = 505, calls = 62, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2023-11-19 04:50:28,773 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:50:28,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:50:28,774 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:50:28,774 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:50:28,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,788 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,789 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,800 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,802 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,805 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,813 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:50:28,814 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:50:28,814 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:50:28,814 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:50:28,815 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (1/1) ... [2023-11-19 04:50:28,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:50:28,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:50:28,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:50:28,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:50:28,891 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-19 04:50:28,902 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-19 04:50:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:50:28,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:50:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:50:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:50:28,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:50:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:50:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:50:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 04:50:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-19 04:50:29,080 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:50:29,082 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:50:29,249 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:50:29,257 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:50:29,257 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:50:29,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:29 BoogieIcfgContainer [2023-11-19 04:50:29,261 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:50:29,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:50:29,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:50:29,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:50:29,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:50:27" (1/3) ... [2023-11-19 04:50:29,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cf0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:29, skipping insertion in model container [2023-11-19 04:50:29,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:50:28" (2/3) ... [2023-11-19 04:50:29,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cf0ba0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:50:29, skipping insertion in model container [2023-11-19 04:50:29,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:29" (3/3) ... [2023-11-19 04:50:29,270 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_63_bad.i [2023-11-19 04:50:29,291 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:50:29,291 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:50:29,343 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:50:29,350 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;@54accad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:50:29,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:50:29,355 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 04:50:29,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:50:29,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:50:29,364 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:50:29,365 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:50:29,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:50:29,374 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2023-11-19 04:50:29,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-19 04:50:29,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626155262] [2023-11-19 04:50:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:50:29,387 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 04:50:29,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/mathsat [2023-11-19 04:50:29,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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 04:50:29,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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 04:50:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:29,561 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:50:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:50:29,646 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-19 04:50:29,648 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 04:50:29,650 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:50:29,652 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:50:29,663 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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 04:50:29,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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 04:50:29,861 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-19 04:50:29,867 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:50:29,889 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-19 04:50:29,890 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-19 04:50:29,890 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-19 04:50:29,891 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-19 04:50:29,891 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-19 04:50:29,904 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:50:29 BoogieIcfgContainer [2023-11-19 04:50:29,905 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:50:29,908 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:50:29,908 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:50:29,908 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:50:29,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:50:29" (3/4) ... [2023-11-19 04:50:29,910 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 04:50:29,936 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated [2023-11-19 04:50:29,941 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated [2023-11-19 04:50:29,941 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-19 04:50:29,942 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated [2023-11-19 04:50:29,942 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated [2023-11-19 04:50:30,025 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:50:30,032 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:50:30,034 INFO L158 Benchmark]: Toolchain (without parser) took 3012.40ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 47.8MB in the beginning and 68.9MB in the end (delta: -21.1MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,034 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:50:30,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1682.84ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 47.6MB in the beginning and 51.4MB in the end (delta: -3.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.34ms. Allocated memory is still 98.6MB. Free memory was 51.0MB in the beginning and 48.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,037 INFO L158 Benchmark]: Boogie Preprocessor took 39.87ms. Allocated memory is still 98.6MB. Free memory was 48.0MB in the beginning and 45.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,040 INFO L158 Benchmark]: RCFGBuilder took 447.13ms. Allocated memory is still 98.6MB. Free memory was 45.9MB in the beginning and 59.6MB in the end (delta: -13.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,042 INFO L158 Benchmark]: TraceAbstraction took 641.64ms. Allocated memory is still 98.6MB. Free memory was 59.1MB in the beginning and 40.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,043 INFO L158 Benchmark]: Witness Printer took 125.04ms. Allocated memory is still 98.6MB. Free memory was 40.3MB in the beginning and 68.9MB in the end (delta: -28.6MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2023-11-19 04:50:30,047 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1682.84ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 47.6MB in the beginning and 51.4MB in the end (delta: -3.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.34ms. Allocated memory is still 98.6MB. Free memory was 51.0MB in the beginning and 48.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.87ms. Allocated memory is still 98.6MB. Free memory was 48.0MB in the beginning and 45.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 447.13ms. Allocated memory is still 98.6MB. Free memory was 45.9MB in the beginning and 59.6MB in the end (delta: -13.7MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 641.64ms. Allocated memory is still 98.6MB. Free memory was 59.1MB in the beginning and 40.8MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 125.04ms. Allocated memory is still 98.6MB. Free memory was 40.3MB in the beginning and 68.9MB in the end (delta: -28.6MB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite103 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet102 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet101 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: 1569]: 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] [L1559] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1559] RET printLine("Calling bad()...") VAL [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] [L1560] CALL CWE191_Integer_Underflow__int_rand_multiply_63_bad() [L1551] int data; [L1552] data = 0 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1553] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1554] CALL CWE191_Integer_Underflow__int_rand_multiply_63b_badSink(&data) [L1566] EXPR \read(*dataPtr) [L1566] int data = *dataPtr; [L1567] COND TRUE data < 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data * 2 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, dataPtr={5:0}, dataPtr={5:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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 04:50:30,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ccf3dac-19a9-4ffb-b461-b5451b5c56d1/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)