./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_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_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc748cd948ed3ee565c4ea73d30d79b60629ee0830451fcb98cd7ad1f34ca6e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:55:39,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:55:39,323 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 12:55:39,328 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:55:39,328 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:55:39,352 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:55:39,352 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:55:39,353 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:55:39,353 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:55:39,354 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:55:39,355 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:55:39,355 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:55:39,356 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:55:39,356 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:55:39,357 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:55:39,357 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:55:39,358 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:55:39,358 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:55:39,359 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:55:39,359 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:55:39,360 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:55:39,361 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:55:39,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:55:39,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:55:39,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:55:39,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:55:39,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:55:39,364 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:55:39,364 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:55:39,364 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 12:55:39,365 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:55:39,365 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:55:39,366 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:55:39,366 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:55:39,366 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:55:39,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:55:39,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:55:39,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:55:39,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:55:39,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:55:39,367 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:55:39,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:55:39,368 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:55:39,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:55:39,368 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:55:39,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:55:39,369 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc748cd948ed3ee565c4ea73d30d79b60629ee0830451fcb98cd7ad1f34ca6e8 [2023-12-02 12:55:39,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:55:39,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:55:39,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:55:39,620 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:55:39,620 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:55:39,621 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_bad.i [2023-12-02 12:55:42,404 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:55:42,703 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:55:42,703 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_bad.i [2023-12-02 12:55:42,724 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data/27f26de8f/da434493513a42fc848fb9d09b264be7/FLAGb5f7f601d [2023-12-02 12:55:42,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data/27f26de8f/da434493513a42fc848fb9d09b264be7 [2023-12-02 12:55:42,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:55:42,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:55:42,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:55:42,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:55:42,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:55:42,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:55:42" (1/1) ... [2023-12-02 12:55:42,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a81bdf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:42, skipping insertion in model container [2023-12-02 12:55:42,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:55:42" (1/1) ... [2023-12-02 12:55:42,824 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:55:43,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:55:43,481 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:55:43,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:55:43,674 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:43,674 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:43,674 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:43,674 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:43,682 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:55:43,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43 WrapperNode [2023-12-02 12:55:43,683 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:55:43,684 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:55:43,684 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:55:43,684 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:55:43,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,740 INFO L138 Inliner]: procedures = 498, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-12-02 12:55:43,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:55:43,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:55:43,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:55:43,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:55:43,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,759 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,763 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,764 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:55:43,767 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:55:43,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:55:43,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:55:43,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (1/1) ... [2023-12-02 12:55:43,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:55:43,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:55:43,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:55:43,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:55:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-02 12:55:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-02 12:55:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-12-02 12:55:43,834 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-12-02 12:55:43,834 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 12:55:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 12:55:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:55:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:55:43,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:55:43,835 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 12:55:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:55:43,974 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:55:43,976 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:55:44,093 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:55:44,135 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:55:44,135 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 12:55:44,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:55:44 BoogieIcfgContainer [2023-12-02 12:55:44,137 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:55:44,139 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:55:44,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:55:44,142 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:55:44,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:55:42" (1/3) ... [2023-12-02 12:55:44,143 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c10f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:55:44, skipping insertion in model container [2023-12-02 12:55:44,143 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:43" (2/3) ... [2023-12-02 12:55:44,144 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c10f52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:55:44, skipping insertion in model container [2023-12-02 12:55:44,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:55:44" (3/3) ... [2023-12-02 12:55:44,145 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_12_bad.i [2023-12-02 12:55:44,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:55:44,159 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 12:55:44,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:55:44,206 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7bfc6d01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:55:44,207 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 12:55:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 12:55:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 12:55:44,217 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:44,218 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:55:44,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:55:44,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash -275038374, now seen corresponding path program 1 times [2023-12-02 12:55:44,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:44,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281931776] [2023-12-02 12:55:44,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:44,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:55:44,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:55:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:55:44,465 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 12:55:44,467 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:55:44,468 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 12:55:44,470 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 12:55:44,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 12:55:44,471 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 12:55:44,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:55:44,476 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:55:44,481 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:55:44,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-02 12:55:44,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-12-02 12:55:44,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated [2023-12-02 12:55:44,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:55:44 BoogieIcfgContainer [2023-12-02 12:55:44,509 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:55:44,510 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:55:44,510 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:55:44,510 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:55:44,511 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:55:44" (3/4) ... [2023-12-02 12:55:44,513 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 12:55:44,514 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:55:44,515 INFO L158 Benchmark]: Toolchain (without parser) took 1774.47ms. Allocated memory is still 136.3MB. Free memory was 72.8MB in the beginning and 91.7MB in the end (delta: -18.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:55:44,516 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:55:44,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 941.73ms. Allocated memory is still 136.3MB. Free memory was 72.6MB in the beginning and 87.2MB in the end (delta: -14.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2023-12-02 12:55:44,517 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.00ms. Allocated memory is still 136.3MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:55:44,517 INFO L158 Benchmark]: Boogie Preprocessor took 24.98ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 82.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:55:44,518 INFO L158 Benchmark]: RCFGBuilder took 369.98ms. Allocated memory is still 136.3MB. Free memory was 82.9MB in the beginning and 67.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 12:55:44,518 INFO L158 Benchmark]: TraceAbstraction took 369.91ms. Allocated memory is still 136.3MB. Free memory was 67.2MB in the beginning and 91.7MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:55:44,519 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 136.3MB. Free memory is still 91.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:55:44,522 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 96.5MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 941.73ms. Allocated memory is still 136.3MB. Free memory was 72.6MB in the beginning and 87.2MB in the end (delta: -14.5MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.00ms. Allocated memory is still 136.3MB. Free memory was 87.2MB in the beginning and 84.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.98ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 82.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 369.98ms. Allocated memory is still 136.3MB. Free memory was 82.9MB in the beginning and 67.8MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 369.91ms. Allocated memory is still 136.3MB. Free memory was 67.2MB in the beginning and 91.7MB in the end (delta: -24.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 136.3MB. Free memory is still 91.7MB. 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~ret98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret99 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: 1563]: 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 1583. 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); [L1583] 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={3:0}] [L1414] COND TRUE line != ((void *)0) [L1583] 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] [L1584] CALL CWE191_Integer_Underflow__int_min_sub_12_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1554] 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] [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() 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] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] data - 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] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: 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 4 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 2, 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=33occurred 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, 15 NumberOfCodeBlocks, 15 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 [2023-12-02 12:55:44,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bc748cd948ed3ee565c4ea73d30d79b60629ee0830451fcb98cd7ad1f34ca6e8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:55:46,500 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:55:46,578 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 12:55:46,584 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:55:46,585 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:55:46,613 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:55:46,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:55:46,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:55:46,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:55:46,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:55:46,617 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:55:46,617 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:55:46,618 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:55:46,618 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:55:46,619 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:55:46,619 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:55:46,620 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:55:46,621 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:55:46,621 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:55:46,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:55:46,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:55:46,623 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:55:46,624 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 12:55:46,624 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 12:55:46,624 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 12:55:46,625 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 12:55:46,625 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 12:55:46,626 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:55:46,626 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:55:46,627 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:55:46,627 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 12:55:46,628 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:55:46,628 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:55:46,628 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:55:46,628 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:55:46,629 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:55:46,629 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:55:46,629 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 12:55:46,629 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 12:55:46,629 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:55:46,630 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:55:46,630 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:55:46,630 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:55:46,630 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc748cd948ed3ee565c4ea73d30d79b60629ee0830451fcb98cd7ad1f34ca6e8 [2023-12-02 12:55:46,929 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:55:46,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:55:46,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:55:46,953 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:55:46,953 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:55:46,955 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_bad.i [2023-12-02 12:55:49,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:55:50,018 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:55:50,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_min_sub_12_bad.i [2023-12-02 12:55:50,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data/d721d1885/9895ffbd38d145a58a04c2c3bcf0952b/FLAG9b1b9fd8a [2023-12-02 12:55:50,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/data/d721d1885/9895ffbd38d145a58a04c2c3bcf0952b [2023-12-02 12:55:50,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:55:50,056 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:55:50,057 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:55:50,058 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:55:50,062 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:55:50,062 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:55:50" (1/1) ... [2023-12-02 12:55:50,064 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@442e7407 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:50, skipping insertion in model container [2023-12-02 12:55:50,064 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:55:50" (1/1) ... [2023-12-02 12:55:50,114 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:55:50,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:55:50,821 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:55:50,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:55:51,037 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:51,037 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:51,038 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:51,038 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:55:51,044 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:55:51,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51 WrapperNode [2023-12-02 12:55:51,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:55:51,046 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:55:51,046 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:55:51,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:55:51,051 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,100 INFO L138 Inliner]: procedures = 503, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 56 [2023-12-02 12:55:51,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:55:51,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:55:51,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:55:51,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:55:51,108 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,113 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,123 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,125 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,135 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:55:51,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:55:51,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:55:51,136 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:55:51,137 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (1/1) ... [2023-12-02 12:55:51,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:55:51,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:55:51,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:55:51,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:55:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-12-02 12:55:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-12-02 12:55:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-12-02 12:55:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-12-02 12:55:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 12:55:51,204 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 12:55:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 12:55:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:55:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:55:51,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:55:51,205 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 12:55:51,352 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:55:51,355 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:55:51,497 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:55:51,530 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:55:51,530 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 12:55:51,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:55:51 BoogieIcfgContainer [2023-12-02 12:55:51,531 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:55:51,533 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:55:51,533 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:55:51,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:55:51,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:55:50" (1/3) ... [2023-12-02 12:55:51,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496df106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:55:51, skipping insertion in model container [2023-12-02 12:55:51,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:55:51" (2/3) ... [2023-12-02 12:55:51,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@496df106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:55:51, skipping insertion in model container [2023-12-02 12:55:51,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:55:51" (3/3) ... [2023-12-02 12:55:51,539 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_min_sub_12_bad.i [2023-12-02 12:55:51,556 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:55:51,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-12-02 12:55:51,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:55:51,604 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@601659ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:55:51,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-12-02 12:55:51,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 23 states have internal predecessors, (27), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-12-02 12:55:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 12:55:51,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:51,615 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:55:51,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-12-02 12:55:51,620 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:51,620 INFO L85 PathProgramCache]: Analyzing trace with hash 232461572, now seen corresponding path program 1 times [2023-12-02 12:55:51,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 12:55:51,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1525951694] [2023-12-02 12:55:51,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:51,633 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 [2023-12-02 12:55:51,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 12:55:51,634 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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) [2023-12-02 12:55:51,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:55:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:55:51,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 12:55:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 12:55:51,817 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 12:55:51,819 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 12:55:51,821 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-12-02 12:55:51,822 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-12-02 12:55:51,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-12-02 12:55:51,823 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-12-02 12:55:51,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:55:52,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/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 [2023-12-02 12:55:52,029 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 12:55:52,033 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 12:55:52,051 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 12:55:52,055 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-12-02 12:55:52,057 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret97 could not be translated [2023-12-02 12:55:52,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:55:52 BoogieIcfgContainer [2023-12-02 12:55:52,065 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 12:55:52,065 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 12:55:52,066 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 12:55:52,066 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 12:55:52,067 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:55:51" (3/4) ... [2023-12-02 12:55:52,069 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 12:55:52,070 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 12:55:52,071 INFO L158 Benchmark]: Toolchain (without parser) took 2014.55ms. Allocated memory was 73.4MB in the beginning and 113.2MB in the end (delta: 39.8MB). Free memory was 47.2MB in the beginning and 75.1MB in the end (delta: -27.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-12-02 12:55:52,072 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:55:52,073 INFO L158 Benchmark]: CACSL2BoogieTranslator took 987.64ms. Allocated memory was 73.4MB in the beginning and 113.2MB in the end (delta: 39.8MB). Free memory was 47.0MB in the beginning and 77.3MB in the end (delta: -30.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-12-02 12:55:52,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.54ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 74.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:55:52,074 INFO L158 Benchmark]: Boogie Preprocessor took 34.73ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 72.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:55:52,075 INFO L158 Benchmark]: RCFGBuilder took 394.66ms. Allocated memory is still 113.2MB. Free memory was 72.0MB in the beginning and 55.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-02 12:55:52,075 INFO L158 Benchmark]: TraceAbstraction took 531.79ms. Allocated memory is still 113.2MB. Free memory was 55.2MB in the beginning and 75.7MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 12:55:52,076 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 113.2MB. Free memory was 75.7MB in the beginning and 75.1MB in the end (delta: 679.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 12:55:52,080 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 987.64ms. Allocated memory was 73.4MB in the beginning and 113.2MB in the end (delta: 39.8MB). Free memory was 47.0MB in the beginning and 77.3MB in the end (delta: -30.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.54ms. Allocated memory is still 113.2MB. Free memory was 77.3MB in the beginning and 74.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.73ms. Allocated memory is still 113.2MB. Free memory was 74.1MB in the beginning and 72.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 394.66ms. Allocated memory is still 113.2MB. Free memory was 72.0MB in the beginning and 55.8MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 531.79ms. Allocated memory is still 113.2MB. Free memory was 55.2MB in the beginning and 75.7MB in the end (delta: -20.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 113.2MB. Free memory was 75.7MB in the beginning and 75.1MB in the end (delta: 679.1kB). 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~nondet100 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret97 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: 1563]: 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 1583. 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); [L1583] 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={3:0}] [L1414] COND TRUE line != ((void *)0) [L1583] 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] [L1584] CALL CWE191_Integer_Underflow__int_min_sub_12_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1554] 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] [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() 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] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] data - 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] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: 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 4 procedures, 34 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, 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=34occurred 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, 16 NumberOfCodeBlocks, 16 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 [2023-12-02 12:55:52,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d58e51a7-eb65-4f49-858b-09260c8bbd15/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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