./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:05,227 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:05,364 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 21:00:05,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:05,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:05,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:05,412 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:05,413 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:05,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:05,414 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:05,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:05,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:05,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:05,418 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:05,418 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:05,419 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:05,420 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:05,421 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:00:05,421 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:05,422 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:05,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:05,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:05,425 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 21:00:05,426 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:05,426 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:05,427 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:05,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:05,429 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:05,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:05,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:05,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:05,432 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:05,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:05,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:05,434 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:00:05,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:00:05,435 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:05,436 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:05,437 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:05,437 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:05,438 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:05,439 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 [2023-11-21 21:00:05,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:05,781 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:05,784 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:05,787 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:05,788 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:05,790 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2023-11-21 21:00:09,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:09,594 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:09,595 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2023-11-21 21:00:09,639 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data/d826d7085/296ce8422e1a48e8abb284d10b65b0eb/FLAGda002cc1d [2023-11-21 21:00:09,663 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data/d826d7085/296ce8422e1a48e8abb284d10b65b0eb [2023-11-21 21:00:09,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:09,675 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:09,680 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:09,680 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:09,687 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:09,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:09" (1/1) ... [2023-11-21 21:00:09,691 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b943159 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:09, skipping insertion in model container [2023-11-21 21:00:09,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:09" (1/1) ... [2023-11-21 21:00:09,775 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:10,250 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:11,087 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:11,101 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:11,142 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:11,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:11,461 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:11,461 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:11,462 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:11,462 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:11,462 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:11,472 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:11,473 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11 WrapperNode [2023-11-21 21:00:11,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:11,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:11,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:11,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:11,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,589 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 94 [2023-11-21 21:00:11,590 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:11,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:11,591 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:11,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:11,603 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,609 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,625 INFO L187 HeapSplitter]: Split 1 memory accesses to 1 slices as follows [1] [2023-11-21 21:00:11,625 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,626 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,634 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,637 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,640 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,642 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,647 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:11,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:11,648 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:11,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:11,650 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (1/1) ... [2023-11-21 21:00:11,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:11,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:11,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:11,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:11,785 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 21:00:11,786 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 21:00:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:11,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:11,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 21:00:11,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:00:12,007 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:12,012 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:12,299 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:12,644 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:12,645 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:00:12,647 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:12 BoogieIcfgContainer [2023-11-21 21:00:12,661 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:12,664 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:12,664 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:12,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:12,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:09" (1/3) ... [2023-11-21 21:00:12,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3037cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:12, skipping insertion in model container [2023-11-21 21:00:12,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:11" (2/3) ... [2023-11-21 21:00:12,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f3037cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:12, skipping insertion in model container [2023-11-21 21:00:12,674 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:12" (3/3) ... [2023-11-21 21:00:12,678 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2023-11-21 21:00:12,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:12,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 21:00:12,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:12,793 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@49edef4d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:12,793 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 21:00:12,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:00:12,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 21:00:12,810 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:12,810 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 21:00:12,811 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 21:00:12,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:12,818 INFO L85 PathProgramCache]: Analyzing trace with hash -216623793, now seen corresponding path program 1 times [2023-11-21 21:00:12,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:12,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508213764] [2023-11-21 21:00:12,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:12,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:13,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:13,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:13,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:00:13,433 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:00:13,435 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 21:00:13,437 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 21:00:13,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:13,445 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:00:13,451 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:13,493 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:13 BoogieIcfgContainer [2023-11-21 21:00:13,494 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:13,497 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:13,497 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:13,497 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:13,498 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:12" (3/4) ... [2023-11-21 21:00:13,501 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:00:13,502 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:13,504 INFO L158 Benchmark]: Toolchain (without parser) took 3828.08ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 92.2MB in the beginning and 110.0MB in the end (delta: -17.8MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2023-11-21 21:00:13,505 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 140.5MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:13,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1793.89ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 91.9MB in the beginning and 123.4MB in the end (delta: -31.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2023-11-21 21:00:13,508 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.76ms. Allocated memory is still 186.6MB. Free memory was 123.4MB in the beginning and 120.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:00:13,515 INFO L158 Benchmark]: Boogie Preprocessor took 56.23ms. Allocated memory is still 186.6MB. Free memory was 120.1MB in the beginning and 118.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:13,516 INFO L158 Benchmark]: RCFGBuilder took 1012.90ms. Allocated memory is still 186.6MB. Free memory was 118.0MB in the beginning and 142.5MB in the end (delta: -24.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:13,517 INFO L158 Benchmark]: TraceAbstraction took 830.30ms. Allocated memory is still 186.6MB. Free memory was 142.5MB in the beginning and 110.0MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-21 21:00:13,518 INFO L158 Benchmark]: Witness Printer took 5.80ms. Allocated memory is still 186.6MB. Free memory was 110.0MB in the beginning and 110.0MB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:13,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 140.5MB. Free memory is still 87.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1793.89ms. Allocated memory was 140.5MB in the beginning and 186.6MB in the end (delta: 46.1MB). Free memory was 91.9MB in the beginning and 123.4MB in the end (delta: -31.5MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.76ms. Allocated memory is still 186.6MB. Free memory was 123.4MB in the beginning and 120.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.23ms. Allocated memory is still 186.6MB. Free memory was 120.1MB in the beginning and 118.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1012.90ms. Allocated memory is still 186.6MB. Free memory was 118.0MB in the beginning and 142.5MB in the end (delta: -24.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 830.30ms. Allocated memory is still 186.6MB. Free memory was 142.5MB in the beginning and 110.0MB in the end (delta: 32.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 5.80ms. Allocated memory is still 186.6MB. Free memory was 110.0MB in the beginning and 110.0MB in the end (delta: 2.6kB). 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: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 1556. 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] int CWE191_Integer_Underflow__int_rand_predec_68_badData; [L1549] int CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData; [L1550] int CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData; [L1563] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=0, CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_68_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) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=0, CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1556] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] CWE191_Integer_Underflow__int_rand_predec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_rand_predec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_rand_predec_68_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] --data VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodB2GData=0, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 21:00:13,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:00:16,483 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:00:16,571 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-21 21:00:16,577 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:00:16,578 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:00:16,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-21 21:00:16,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:00:16,622 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:00:16,623 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:00:16,624 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:00:16,624 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:00:16,625 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:00:16,626 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:00:16,627 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:00:16,628 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:00:16,629 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:00:16,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:00:16,633 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:00:16,633 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:00:16,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:00:16,635 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:00:16,635 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:00:16,636 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 21:00:16,636 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 21:00:16,636 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 21:00:16,637 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 21:00:16,637 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 21:00:16,638 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:00:16,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:00:16,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:00:16,639 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:00:16,640 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:00:16,640 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:00:16,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:16,641 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:00:16,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:00:16,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:00:16,642 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 21:00:16,642 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 21:00:16,642 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:00:16,642 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:00:16,643 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:00:16,643 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:00:16,643 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:00:16,643 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 21:00:16,643 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb5f999f77ab51b49a4c5e9942d8bebe32c00f89ee135bf35b2b5c1f5425bfe9 [2023-11-21 21:00:17,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:00:17,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:00:17,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:00:17,087 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:00:17,087 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:00:17,089 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2023-11-21 21:00:20,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:00:20,978 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:00:20,979 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2023-11-21 21:00:21,021 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data/9c1cf421b/e1abb361187145abbd48e1b775726fda/FLAGb8e65c3f1 [2023-11-21 21:00:21,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/data/9c1cf421b/e1abb361187145abbd48e1b775726fda [2023-11-21 21:00:21,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:00:21,059 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:00:21,065 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:21,066 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:00:21,074 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:00:21,075 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:21" (1/1) ... [2023-11-21 21:00:21,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d2d63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:21, skipping insertion in model container [2023-11-21 21:00:21,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:00:21" (1/1) ... [2023-11-21 21:00:21,179 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:00:21,761 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:22,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:22,580 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:00:22,622 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 21:00:22,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:00:23,037 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:23,037 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:23,038 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:23,038 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:23,038 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 21:00:23,049 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:00:23,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23 WrapperNode [2023-11-21 21:00:23,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:00:23,052 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:23,052 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:00:23,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:00:23,063 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,179 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2023-11-21 21:00:23,180 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:00:23,182 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:00:23,182 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:00:23,182 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:00:23,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,222 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,263 INFO L187 HeapSplitter]: Split 1 memory accesses to 1 slices as follows [1] [2023-11-21 21:00:23,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,284 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,292 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:00:23,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:00:23,294 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:00:23,294 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:00:23,295 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (1/1) ... [2023-11-21 21:00:23,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:00:23,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:00:23,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:00:23,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:00:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-21 21:00:23,399 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-21 21:00:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 21:00:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:00:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:00:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:00:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-21 21:00:23,639 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:00:23,642 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:00:23,886 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:00:24,021 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:00:24,021 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:00:24,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:24 BoogieIcfgContainer [2023-11-21 21:00:24,025 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:00:24,028 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:00:24,028 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:00:24,032 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:00:24,034 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:00:21" (1/3) ... [2023-11-21 21:00:24,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b926d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:24, skipping insertion in model container [2023-11-21 21:00:24,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:00:23" (2/3) ... [2023-11-21 21:00:24,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38b926d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:00:24, skipping insertion in model container [2023-11-21 21:00:24,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:24" (3/3) ... [2023-11-21 21:00:24,040 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_68_bad.i [2023-11-21 21:00:24,066 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:00:24,067 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 21:00:24,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:00:24,160 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@51da03d0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:00:24,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 21:00:24,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 21:00:24,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-21 21:00:24,192 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:24,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-21 21:00:24,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 21:00:24,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:24,202 INFO L85 PathProgramCache]: Analyzing trace with hash 2066429299, now seen corresponding path program 1 times [2023-11-21 21:00:24,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:00:24,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975148527] [2023-11-21 21:00:24,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:24,221 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 [2023-11-21 21:00:24,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:00:24,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 21:00:24,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:24,417 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:00:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:00:24,485 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 21:00:24,488 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:00:24,490 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 21:00:24,492 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 21:00:24,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:24,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 21:00:24,702 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:00:24,709 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:00:24,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:00:24 BoogieIcfgContainer [2023-11-21 21:00:24,737 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:00:24,738 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:00:24,738 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:00:24,738 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:00:24,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:00:24" (3/4) ... [2023-11-21 21:00:24,743 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 21:00:24,838 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:00:24,838 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:00:24,840 INFO L158 Benchmark]: Toolchain (without parser) took 3780.59ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 47.8MB in the beginning and 59.4MB in the end (delta: -11.6MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-11-21 21:00:24,840 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:24,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1985.43ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 47.6MB in the beginning and 44.6MB in the end (delta: 3.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. [2023-11-21 21:00:24,842 INFO L158 Benchmark]: Boogie Procedure Inliner took 128.09ms. Allocated memory is still 96.5MB. Free memory was 44.6MB in the beginning and 41.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:24,843 INFO L158 Benchmark]: Boogie Preprocessor took 111.11ms. Allocated memory is still 96.5MB. Free memory was 41.7MB in the beginning and 67.7MB in the end (delta: -26.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-21 21:00:24,850 INFO L158 Benchmark]: RCFGBuilder took 731.57ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 48.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-21 21:00:24,850 INFO L158 Benchmark]: TraceAbstraction took 709.32ms. Allocated memory is still 96.5MB. Free memory was 48.3MB in the beginning and 61.5MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:00:24,851 INFO L158 Benchmark]: Witness Printer took 100.44ms. Allocated memory is still 96.5MB. Free memory was 61.5MB in the beginning and 59.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:00:24,853 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 75.5MB. Free memory is still 51.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1985.43ms. Allocated memory was 75.5MB in the beginning and 96.5MB in the end (delta: 21.0MB). Free memory was 47.6MB in the beginning and 44.6MB in the end (delta: 3.0MB). Peak memory consumption was 32.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 128.09ms. Allocated memory is still 96.5MB. Free memory was 44.6MB in the beginning and 41.7MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 111.11ms. Allocated memory is still 96.5MB. Free memory was 41.7MB in the beginning and 67.7MB in the end (delta: -26.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * RCFGBuilder took 731.57ms. Allocated memory is still 96.5MB. Free memory was 67.7MB in the beginning and 48.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 709.32ms. Allocated memory is still 96.5MB. Free memory was 48.3MB in the beginning and 61.5MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 100.44ms. Allocated memory is still 96.5MB. Free memory was 61.5MB in the beginning and 59.4MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 1575]: 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] int CWE191_Integer_Underflow__int_rand_predec_68_badData; [L1549] int CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData; [L1563] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=0, CWE191_Integer_Underflow__int_rand_predec_68_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) [L1563] RET printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=0, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL CWE191_Integer_Underflow__int_rand_predec_68_bad() [L1554] int data; [L1555] data = 0 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] CWE191_Integer_Underflow__int_rand_predec_68_badData = data [L1558] CALL CWE191_Integer_Underflow__int_rand_predec_68b_badSink() [L1573] int data = CWE191_Integer_Underflow__int_rand_predec_68_badData; VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1575] --data VAL [CWE191_Integer_Underflow__int_rand_predec_68_badData=-2147483648, CWE191_Integer_Underflow__int_rand_predec_68_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1575]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-11-21 21:00:24,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b51e795-5041-4b8a-81a4-90cc2cf4932a/bin/uautomizer-verify-bycVGegfSx/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)