./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya --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 d61e3cf9ad4260e68703520cdd290e99b8cffda3b25a739c2f7a4c8442835a2f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:48:10,401 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:48:10,463 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-29 00:48:10,467 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:48:10,467 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:48:10,489 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:48:10,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:48:10,490 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:48:10,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:48:10,491 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:48:10,492 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:48:10,492 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:48:10,493 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:48:10,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:48:10,494 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:48:10,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:48:10,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:48:10,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:48:10,496 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:48:10,496 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:48:10,497 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:48:10,497 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:48:10,498 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:48:10,498 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:48:10,499 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:48:10,499 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:48:10,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:48:10,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:48:10,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:48:10,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:48:10,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:48:10,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:48:10,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:48:10,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:48:10,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:48:10,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:48:10,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:48:10,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:48:10,503 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:48:10,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:48:10,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:48:10,504 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_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d61e3cf9ad4260e68703520cdd290e99b8cffda3b25a739c2f7a4c8442835a2f [2023-11-29 00:48:10,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:48:10,732 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:48:10,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:48:10,744 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:48:10,744 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:48:10,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i [2023-11-29 00:48:13,412 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:48:13,694 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:48:13,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i [2023-11-29 00:48:13,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data/3b38a352d/d05135260b5c4d67b445f9654b852796/FLAGc33ebc67b [2023-11-29 00:48:13,729 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data/3b38a352d/d05135260b5c4d67b445f9654b852796 [2023-11-29 00:48:13,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:48:13,733 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:48:13,734 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:48:13,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:48:13,739 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:48:13,739 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:48:13" (1/1) ... [2023-11-29 00:48:13,740 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b8b4a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:13, skipping insertion in model container [2023-11-29 00:48:13,740 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:48:13" (1/1) ... [2023-11-29 00:48:13,807 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:48:14,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:48:14,595 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:48:14,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:48:14,768 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:14,768 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:14,768 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:14,769 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:14,779 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:48:14,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14 WrapperNode [2023-11-29 00:48:14,779 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:48:14,780 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:48:14,780 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:48:14,780 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:48:14,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,831 INFO L138 Inliner]: procedures = 498, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-11-29 00:48:14,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:48:14,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:48:14,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:48:14,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:48:14,841 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,858 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2023-11-29 00:48:14,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,859 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,864 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,869 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,872 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:48:14,873 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:48:14,873 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:48:14,873 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:48:14,874 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (1/1) ... [2023-11-29 00:48:14,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:48:14,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:48:14,899 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:48:14,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:48:14,930 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 00:48:14,930 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 00:48:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:48:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:48:14,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:48:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 00:48:14,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:48:15,049 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:48:15,051 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:48:15,143 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:48:15,169 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:48:15,170 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:48:15,170 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:48:15 BoogieIcfgContainer [2023-11-29 00:48:15,170 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:48:15,173 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:48:15,173 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:48:15,176 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:48:15,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:48:13" (1/3) ... [2023-11-29 00:48:15,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13341782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:48:15, skipping insertion in model container [2023-11-29 00:48:15,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:14" (2/3) ... [2023-11-29 00:48:15,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13341782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:48:15, skipping insertion in model container [2023-11-29 00:48:15,178 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:48:15" (3/3) ... [2023-11-29 00:48:15,179 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_15_bad.i [2023-11-29 00:48:15,194 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:48:15,195 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:48:15,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:48:15,238 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;@530325cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:48:15,239 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:48:15,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:48:15,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 00:48:15,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:48:15,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:48:15,248 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:48:15,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:48:15,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1005682637, now seen corresponding path program 1 times [2023-11-29 00:48:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:48:15,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020114194] [2023-11-29 00:48:15,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:48:15,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:48:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:48:15,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:48:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:48:15,425 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 00:48:15,426 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:48:15,427 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:48:15,429 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:48:15,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:48:15,434 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 00:48:15,438 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:48:15,452 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet104 [2023-11-29 00:48:15,454 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-11-29 00:48:15,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated [2023-11-29 00:48:15,455 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post101 could not be translated [2023-11-29 00:48:15,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:48:15 BoogieIcfgContainer [2023-11-29 00:48:15,461 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:48:15,461 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:48:15,462 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:48:15,462 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:48:15,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:48:15" (3/4) ... [2023-11-29 00:48:15,464 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:48:15,465 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:48:15,466 INFO L158 Benchmark]: Toolchain (without parser) took 1732.97ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 98.0MB in the beginning and 142.4MB in the end (delta: -44.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:48:15,466 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:48:15,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1045.11ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 110.4MB in the end (delta: -12.7MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2023-11-29 00:48:15,467 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.74ms. Allocated memory is still 186.6MB. Free memory was 110.4MB in the beginning and 107.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:48:15,468 INFO L158 Benchmark]: Boogie Preprocessor took 39.69ms. Allocated memory is still 186.6MB. Free memory was 107.2MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:48:15,469 INFO L158 Benchmark]: RCFGBuilder took 297.68ms. Allocated memory is still 186.6MB. Free memory was 105.2MB in the beginning and 91.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 00:48:15,469 INFO L158 Benchmark]: TraceAbstraction took 288.17ms. Allocated memory is still 186.6MB. Free memory was 90.5MB in the beginning and 142.4MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:48:15,470 INFO L158 Benchmark]: Witness Printer took 3.47ms. Allocated memory is still 186.6MB. Free memory was 142.4MB in the beginning and 142.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:48:15,473 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 122.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1045.11ms. Allocated memory was 148.9MB in the beginning and 186.6MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 110.4MB in the end (delta: -12.7MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.74ms. Allocated memory is still 186.6MB. Free memory was 110.4MB in the beginning and 107.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.69ms. Allocated memory is still 186.6MB. Free memory was 107.2MB in the beginning and 105.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.68ms. Allocated memory is still 186.6MB. Free memory was 105.2MB in the beginning and 91.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 288.17ms. Allocated memory is still 186.6MB. Free memory was 90.5MB in the beginning and 142.4MB in the end (delta: -51.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.47ms. Allocated memory is still 186.6MB. Free memory was 142.4MB in the beginning and 142.4MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet104 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post101 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 - UnprovableResult [Line: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1578. 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); [L1578] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=1073741825, argc=1073741825, argv={1073741827:1073741826}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_min_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1555] data = (-0x7fffffff - 1) VAL [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] [L1563] case 7: [L1565] data-- VAL [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: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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=24occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 00:48:15,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya --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 d61e3cf9ad4260e68703520cdd290e99b8cffda3b25a739c2f7a4c8442835a2f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:48:17,455 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:48:17,538 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2023-11-29 00:48:17,543 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:48:17,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:48:17,545 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-11-29 00:48:17,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:48:17,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:48:17,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:48:17,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:48:17,572 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:48:17,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:48:17,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:48:17,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:48:17,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:48:17,575 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:48:17,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:48:17,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:48:17,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:48:17,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:48:17,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:48:17,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:48:17,578 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 00:48:17,579 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 00:48:17,579 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:48:17,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 00:48:17,580 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:48:17,581 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:48:17,581 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:48:17,582 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:48:17,582 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:48:17,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:48:17,583 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:48:17,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:48:17,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:48:17,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:48:17,584 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:48:17,584 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 00:48:17,584 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 00:48:17,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:48:17,585 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:48:17,585 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:48:17,585 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:48:17,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:48:17,585 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 00:48:17,586 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_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d61e3cf9ad4260e68703520cdd290e99b8cffda3b25a739c2f7a4c8442835a2f [2023-11-29 00:48:17,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:48:17,933 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:48:17,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:48:17,937 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:48:17,938 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:48:17,939 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i [2023-11-29 00:48:20,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:48:21,206 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:48:21,207 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_postdec_15_bad.i [2023-11-29 00:48:21,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data/ed48e0c9b/9830cabc4da14dfcb554d993430a063e/FLAG4aed22b16 [2023-11-29 00:48:21,242 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/data/ed48e0c9b/9830cabc4da14dfcb554d993430a063e [2023-11-29 00:48:21,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:48:21,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:48:21,247 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:48:21,247 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:48:21,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:48:21,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:48:21" (1/1) ... [2023-11-29 00:48:21,254 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16331d1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:21, skipping insertion in model container [2023-11-29 00:48:21,254 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:48:21" (1/1) ... [2023-11-29 00:48:21,304 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:48:21,997 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:48:22,011 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:48:22,095 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:48:22,213 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:22,214 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:22,214 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:22,214 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 00:48:22,222 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:48:22,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22 WrapperNode [2023-11-29 00:48:22,223 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:48:22,224 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:48:22,224 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:48:22,224 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:48:22,232 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,285 INFO L138 Inliner]: procedures = 503, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2023-11-29 00:48:22,285 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:48:22,286 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:48:22,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:48:22,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:48:22,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,303 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,319 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2023-11-29 00:48:22,319 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,319 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,330 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,336 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,340 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:48:22,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:48:22,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:48:22,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:48:22,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (1/1) ... [2023-11-29 00:48:22,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:48:22,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:48:22,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:48:22,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:48:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-29 00:48:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-29 00:48:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 00:48:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:48:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:48:22,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:48:22,432 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-29 00:48:22,576 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:48:22,578 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:48:22,712 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:48:22,766 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:48:22,766 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 00:48:22,767 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:48:22 BoogieIcfgContainer [2023-11-29 00:48:22,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:48:22,769 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:48:22,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:48:22,773 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:48:22,773 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:48:21" (1/3) ... [2023-11-29 00:48:22,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5052ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:48:22, skipping insertion in model container [2023-11-29 00:48:22,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:48:22" (2/3) ... [2023-11-29 00:48:22,774 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c5052ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:48:22, skipping insertion in model container [2023-11-29 00:48:22,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:48:22" (3/3) ... [2023-11-29 00:48:22,776 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_postdec_15_bad.i [2023-11-29 00:48:22,795 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:48:22,796 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 00:48:22,843 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:48:22,850 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;@645c365, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:48:22,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 00:48:22,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 00:48:22,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-29 00:48:22,863 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:48:22,863 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:48:22,864 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-29 00:48:22,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:48:22,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1005682637, now seen corresponding path program 1 times [2023-11-29 00:48:22,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 00:48:22,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152604893] [2023-11-29 00:48:22,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:48:22,885 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 [2023-11-29 00:48:22,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 00:48:22,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 00:48:22,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:48:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:48:22,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 00:48:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 00:48:23,053 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-29 00:48:23,055 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 00:48:23,056 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-29 00:48:23,058 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-29 00:48:23,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:48:23,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 00:48:23,264 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-29 00:48:23,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 00:48:23,285 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-11-29 00:48:23,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch96 could not be translated [2023-11-29 00:48:23,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated [2023-11-29 00:48:23,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~switch98 could not be translated [2023-11-29 00:48:23,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 12:48:23 BoogieIcfgContainer [2023-11-29 00:48:23,296 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 00:48:23,297 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 00:48:23,297 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 00:48:23,297 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 00:48:23,297 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:48:22" (3/4) ... [2023-11-29 00:48:23,299 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 00:48:23,301 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 00:48:23,302 INFO L158 Benchmark]: Toolchain (without parser) took 2055.78ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 40.7MB in the beginning and 36.0MB in the end (delta: 4.7MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2023-11-29 00:48:23,302 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:48:23,303 INFO L158 Benchmark]: CACSL2BoogieTranslator took 976.35ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 40.5MB in the beginning and 52.9MB in the end (delta: -12.3MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-29 00:48:23,304 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.63ms. Allocated memory is still 86.0MB. Free memory was 52.9MB in the beginning and 49.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 00:48:23,305 INFO L158 Benchmark]: Boogie Preprocessor took 54.39ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 47.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 00:48:23,306 INFO L158 Benchmark]: RCFGBuilder took 425.63ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 52.8MB in the end (delta: -5.8MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-11-29 00:48:23,306 INFO L158 Benchmark]: TraceAbstraction took 526.52ms. Allocated memory is still 86.0MB. Free memory was 52.3MB in the beginning and 36.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 00:48:23,307 INFO L158 Benchmark]: Witness Printer took 4.14ms. Allocated memory is still 86.0MB. Free memory was 36.5MB in the beginning and 36.0MB in the end (delta: 454.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 00:48:23,311 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 62.9MB. Free memory was 39.0MB in the beginning and 38.9MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 976.35ms. Allocated memory was 62.9MB in the beginning and 86.0MB in the end (delta: 23.1MB). Free memory was 40.5MB in the beginning and 52.9MB in the end (delta: -12.3MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.63ms. Allocated memory is still 86.0MB. Free memory was 52.9MB in the beginning and 49.9MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.39ms. Allocated memory is still 86.0MB. Free memory was 49.9MB in the beginning and 47.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.63ms. Allocated memory is still 86.0MB. Free memory was 47.0MB in the beginning and 52.8MB in the end (delta: -5.8MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * TraceAbstraction took 526.52ms. Allocated memory is still 86.0MB. Free memory was 52.3MB in the beginning and 36.5MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.14ms. Allocated memory is still 86.0MB. Free memory was 36.5MB in the beginning and 36.0MB in the end (delta: 454.3kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #t~nondet102 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~switch98 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 - UnprovableResult [Line: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1578. 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); [L1578] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1578] 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}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_min_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1555] data = (-0x7fffffff - 1) VAL [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] [L1563] case 7: [L1565] data-- VAL [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: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-29 00:48:23,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf79e610-f84f-4666-bc1d-19c6e36999f6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample