./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_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_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 bd9711d89d2ec44c0bab9ddbe2979efb30e48c20735b8d51f6b8639f3c9eef7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:50:25,971 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:50:26,049 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-12-02 16:50:26,056 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:50:26,057 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:50:26,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:50:26,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:50:26,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:50:26,091 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:50:26,091 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:50:26,092 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:50:26,093 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:50:26,094 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:50:26,094 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 16:50:26,095 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:50:26,096 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:50:26,096 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 16:50:26,097 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 16:50:26,097 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:50:26,098 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 16:50:26,099 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 16:50:26,100 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 16:50:26,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:50:26,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:50:26,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 16:50:26,103 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:50:26,103 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:50:26,104 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:50:26,104 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:50:26,105 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:50:26,105 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:50:26,106 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:50:26,106 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:50:26,106 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:50:26,107 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:50:26,107 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:50:26,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:50:26,107 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:50:26,108 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:50:26,108 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:50:26,108 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 16:50:26,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 16:50:26,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:50:26,109 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:50:26,109 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:50:26,109 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:50:26,110 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_5e56ef07-1772-4c47-8b71-0ed79d696b26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd9711d89d2ec44c0bab9ddbe2979efb30e48c20735b8d51f6b8639f3c9eef7a [2023-12-02 16:50:26,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:50:26,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:50:26,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:50:26,408 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:50:26,409 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:50:26,411 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_bad.i [2023-12-02 16:50:29,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:50:30,102 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:50:30,103 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_bad.i [2023-12-02 16:50:30,130 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data/094483b35/610119797cdb4a29976cdff164644d89/FLAGeab3e8470 [2023-12-02 16:50:30,146 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data/094483b35/610119797cdb4a29976cdff164644d89 [2023-12-02 16:50:30,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:50:30,151 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:50:30,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:50:30,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:50:30,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:50:30,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:50:30" (1/1) ... [2023-12-02 16:50:30,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759e5778 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:30, skipping insertion in model container [2023-12-02 16:50:30,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:50:30" (1/1) ... [2023-12-02 16:50:30,238 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:50:30,967 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:50:30,979 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:50:31,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:50:31,224 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:31,224 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:31,224 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:31,224 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:31,230 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:50:31,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31 WrapperNode [2023-12-02 16:50:31,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:50:31,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:50:31,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:50:31,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:50:31,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,263 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,286 INFO L138 Inliner]: procedures = 500, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2023-12-02 16:50:31,286 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:50:31,287 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:50:31,287 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:50:31,287 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:50:31,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:50:31,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:50:31,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:50:31,313 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:50:31,314 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (1/1) ... [2023-12-02 16:50:31,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:50:31,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:50:31,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:50:31,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:50:31,384 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 16:50:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 16:50:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:50:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:50:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:50:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-12-02 16:50:31,385 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-12-02 16:50:31,385 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 16:50:31,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 16:50:31,528 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:50:31,530 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:50:31,631 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:50:31,672 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:50:31,673 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 16:50:31,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:50:31 BoogieIcfgContainer [2023-12-02 16:50:31,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:50:31,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:50:31,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:50:31,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:50:31,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:50:30" (1/3) ... [2023-12-02 16:50:31,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25951cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:50:31, skipping insertion in model container [2023-12-02 16:50:31,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:31" (2/3) ... [2023-12-02 16:50:31,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25951cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:50:31, skipping insertion in model container [2023-12-02 16:50:31,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:50:31" (3/3) ... [2023-12-02 16:50:31,685 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_max_preinc_08_bad.i [2023-12-02 16:50:31,704 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:50:31,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 16:50:31,756 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:50:31,763 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;@5b4c9284, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:50:31,763 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 16:50:31,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 16:50:31,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 16:50:31,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:50:31,776 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:50:31,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:50:31,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:50:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1733410871, now seen corresponding path program 1 times [2023-12-02 16:50:31,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:50:31,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288647051] [2023-12-02 16:50:31,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:31,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:50:31,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:50:32,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:50:32,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 16:50:32,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288647051] [2023-12-02 16:50:32,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288647051] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 16:50:32,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542883476] [2023-12-02 16:50:32,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:32,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 16:50:32,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:50:32,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 16:50:32,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 16:50:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:50:32,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 16:50:32,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:50:32,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:50:32,301 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 16:50:32,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 16:50:32,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542883476] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 16:50:32,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1669193594] [2023-12-02 16:50:32,393 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-12-02 16:50:32,393 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 16:50:32,396 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 16:50:32,402 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 16:50:32,403 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 16:50:33,049 INFO L197 IcfgInterpreter]: Interpreting procedure staticReturnsTrue with input of size 48 for LOIs [2023-12-02 16:50:33,057 INFO L197 IcfgInterpreter]: Interpreting procedure printLine with input of size 52 for LOIs [2023-12-02 16:50:33,079 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 16:50:33,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1669193594] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:50:33,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 16:50:33,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 17 [2023-12-02 16:50:33,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831862660] [2023-12-02 16:50:33,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:50:33,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 16:50:33,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 16:50:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 16:50:34,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:50:34,022 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:50:34,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:50:34,171 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2023-12-02 16:50:34,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-12-02 16:50:34,173 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 15 [2023-12-02 16:50:34,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:50:34,180 INFO L225 Difference]: With dead ends: 22 [2023-12-02 16:50:34,181 INFO L226 Difference]: Without dead ends: 15 [2023-12-02 16:50:34,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-12-02 16:50:34,187 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-02 16:50:34,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-02 16:50:34,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-12-02 16:50:34,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-12-02 16:50:34,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 9 states have (on average 1.0) internal successors, (9), 9 states have internal predecessors, (9), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:50:34,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 16:50:34,223 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 15 [2023-12-02 16:50:34,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:50:34,225 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-12-02 16:50:34,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:50:34,225 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 16:50:34,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 16:50:34,226 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:50:34,227 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:50:34,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 16:50:34,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-02 16:50:34,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:50:34,428 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:50:34,428 INFO L85 PathProgramCache]: Analyzing trace with hash 2098837906, now seen corresponding path program 1 times [2023-12-02 16:50:34,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 16:50:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861729016] [2023-12-02 16:50:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 16:50:34,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:50:34,446 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:50:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:50:34,476 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 16:50:34,476 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:50:34,477 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 16:50:34,479 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 16:50:34,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 16:50:34,482 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 16:50:34,485 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:50:34,502 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet102 [2023-12-02 16:50:34,506 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-12-02 16:50:34,507 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret99 could not be translated [2023-12-02 16:50:34,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:50:34 BoogieIcfgContainer [2023-12-02 16:50:34,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:50:34,517 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:50:34,517 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:50:34,517 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:50:34,518 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:50:31" (3/4) ... [2023-12-02 16:50:34,520 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:50:34,521 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:50:34,522 INFO L158 Benchmark]: Toolchain (without parser) took 4371.10ms. Allocated memory was 132.1MB in the beginning and 197.1MB in the end (delta: 65.0MB). Free memory was 98.1MB in the beginning and 129.2MB in the end (delta: -31.1MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2023-12-02 16:50:34,522 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:50:34,523 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1078.93ms. Allocated memory was 132.1MB in the beginning and 197.1MB in the end (delta: 65.0MB). Free memory was 97.6MB in the beginning and 152.8MB in the end (delta: -55.1MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2023-12-02 16:50:34,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.67ms. Allocated memory is still 197.1MB. Free memory was 152.8MB in the beginning and 150.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:50:34,524 INFO L158 Benchmark]: Boogie Preprocessor took 25.47ms. Allocated memory is still 197.1MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:50:34,524 INFO L158 Benchmark]: RCFGBuilder took 362.15ms. Allocated memory is still 197.1MB. Free memory was 148.6MB in the beginning and 133.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:50:34,525 INFO L158 Benchmark]: TraceAbstraction took 2838.35ms. Allocated memory is still 197.1MB. Free memory was 133.9MB in the beginning and 129.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2023-12-02 16:50:34,525 INFO L158 Benchmark]: Witness Printer took 4.06ms. Allocated memory is still 197.1MB. Free memory is still 129.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:50:34,528 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 132.1MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1078.93ms. Allocated memory was 132.1MB in the beginning and 197.1MB in the end (delta: 65.0MB). Free memory was 97.6MB in the beginning and 152.8MB in the end (delta: -55.1MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.67ms. Allocated memory is still 197.1MB. Free memory was 152.8MB in the beginning and 150.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.47ms. Allocated memory is still 197.1MB. Free memory was 150.7MB in the beginning and 148.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 362.15ms. Allocated memory is still 197.1MB. Free memory was 148.6MB in the beginning and 133.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2838.35ms. Allocated memory is still 197.1MB. Free memory was 133.9MB in the beginning and 129.2MB in the end (delta: 4.7MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Witness Printer took 4.06ms. Allocated memory is still 197.1MB. Free memory is still 129.2MB. 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: 1567]: 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 1576. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1576] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_max_preinc_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() 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] [L1560] COND TRUE staticReturnsTrue() [L1562] data = 0x7fffffff VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] COND TRUE staticReturnsTrue() [L1567] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 1 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 3/6 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: OVERALL_TIME: 0.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 9, TOOLS_POST_CALL_TIME: 0.2s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 25, TOOLS_QUANTIFIERELIM_TIME: 0.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 40, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 7, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 130, DAG_COMPRESSION_RETAINED_NODES: 43, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-02 16:50:34,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 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_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 bd9711d89d2ec44c0bab9ddbe2979efb30e48c20735b8d51f6b8639f3c9eef7a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 16:50:36,648 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 16:50:36,733 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-12-02 16:50:36,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 16:50:36,741 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 16:50:36,775 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 16:50:36,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 16:50:36,776 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 16:50:36,777 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 16:50:36,778 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 16:50:36,778 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 16:50:36,779 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 16:50:36,780 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 16:50:36,780 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 16:50:36,781 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 16:50:36,781 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 16:50:36,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 16:50:36,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 16:50:36,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 16:50:36,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 16:50:36,785 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 16:50:36,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 16:50:36,786 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 16:50:36,786 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 16:50:36,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 16:50:36,787 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 16:50:36,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 16:50:36,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 16:50:36,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 16:50:36,790 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 16:50:36,790 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 16:50:36,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 16:50:36,791 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 16:50:36,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:50:36,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 16:50:36,793 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 16:50:36,793 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 16:50:36,793 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 16:50:36,793 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 16:50:36,794 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 16:50:36,794 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 16:50:36,794 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 16:50:36,794 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 16:50:36,795 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_5e56ef07-1772-4c47-8b71-0ed79d696b26/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd9711d89d2ec44c0bab9ddbe2979efb30e48c20735b8d51f6b8639f3c9eef7a [2023-12-02 16:50:37,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 16:50:37,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 16:50:37,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 16:50:37,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 16:50:37,217 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 16:50:37,218 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_bad.i [2023-12-02 16:50:40,163 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 16:50:40,514 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 16:50:40,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_max_preinc_08_bad.i [2023-12-02 16:50:40,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data/e8594a78e/262f5044712241ddb2ecbb4c5f237b9d/FLAG6ea3d4e07 [2023-12-02 16:50:40,563 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/data/e8594a78e/262f5044712241ddb2ecbb4c5f237b9d [2023-12-02 16:50:40,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 16:50:40,568 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 16:50:40,570 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 16:50:40,570 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 16:50:40,576 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 16:50:40,577 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:50:40" (1/1) ... [2023-12-02 16:50:40,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42467e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:40, skipping insertion in model container [2023-12-02 16:50:40,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 04:50:40" (1/1) ... [2023-12-02 16:50:40,647 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 16:50:41,550 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:50:41,569 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 16:50:41,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 16:50:41,853 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:41,853 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:41,853 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:41,853 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 16:50:41,861 INFO L206 MainTranslator]: Completed translation [2023-12-02 16:50:41,862 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41 WrapperNode [2023-12-02 16:50:41,862 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 16:50:41,863 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 16:50:41,863 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 16:50:41,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 16:50:41,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,908 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,933 INFO L138 Inliner]: procedures = 505, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2023-12-02 16:50:41,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 16:50:41,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 16:50:41,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 16:50:41,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 16:50:41,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,948 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,948 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,964 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 16:50:41,970 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 16:50:41,970 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 16:50:41,970 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 16:50:41,971 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (1/1) ... [2023-12-02 16:50:41,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 16:50:41,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 16:50:42,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 16:50:42,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 16:50:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-12-02 16:50:42,045 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-12-02 16:50:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 16:50:42,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 16:50:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 16:50:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 16:50:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-12-02 16:50:42,046 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-12-02 16:50:42,046 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-12-02 16:50:42,196 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 16:50:42,198 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 16:50:42,315 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 16:50:42,350 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 16:50:42,350 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 16:50:42,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:50:42 BoogieIcfgContainer [2023-12-02 16:50:42,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 16:50:42,353 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 16:50:42,354 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 16:50:42,357 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 16:50:42,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 04:50:40" (1/3) ... [2023-12-02 16:50:42,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a3a20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:50:42, skipping insertion in model container [2023-12-02 16:50:42,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 04:50:41" (2/3) ... [2023-12-02 16:50:42,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26a3a20e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 04:50:42, skipping insertion in model container [2023-12-02 16:50:42,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:50:42" (3/3) ... [2023-12-02 16:50:42,360 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_max_preinc_08_bad.i [2023-12-02 16:50:42,377 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 16:50:42,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-02 16:50:42,420 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 16:50:42,426 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;@2a3fd3f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 16:50:42,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-02 16:50:42,429 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 16:50:42,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 16:50:42,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:50:42,438 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:50:42,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:50:42,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:50:42,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1144390539, now seen corresponding path program 1 times [2023-12-02 16:50:42,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:50:42,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1826079253] [2023-12-02 16:50:42,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:42,456 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 16:50:42,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:50:42,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 16:50:42,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 16:50:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 16:50:42,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 16:50:42,566 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 16:50:42,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 16:50:42,617 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 16:50:42,618 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 16:50:42,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1826079253] [2023-12-02 16:50:42,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1826079253] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 16:50:42,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 16:50:42,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-12-02 16:50:42,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091352483] [2023-12-02 16:50:42,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 16:50:42,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-02 16:50:42,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 16:50:42,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-02 16:50:42,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:50:42,652 INFO L87 Difference]: Start difference. First operand has 21 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 14 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:50:42,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 16:50:42,680 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2023-12-02 16:50:42,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-02 16:50:42,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2023-12-02 16:50:42,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 16:50:42,689 INFO L225 Difference]: With dead ends: 21 [2023-12-02 16:50:42,689 INFO L226 Difference]: Without dead ends: 16 [2023-12-02 16:50:42,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-02 16:50:42,694 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-02 16:50:42,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-02 16:50:42,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-12-02 16:50:42,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-12-02 16:50:42,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-02 16:50:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2023-12-02 16:50:42,723 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 16 [2023-12-02 16:50:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 16:50:42,724 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2023-12-02 16:50:42,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 16:50:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-02 16:50:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 16:50:42,726 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 16:50:42,726 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 16:50:42,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 16:50:42,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 16:50:42,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-12-02 16:50:42,929 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 16:50:42,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1116368398, now seen corresponding path program 1 times [2023-12-02 16:50:42,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 16:50:42,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1508595686] [2023-12-02 16:50:42,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 16:50:42,930 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 16:50:42,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 16:50:42,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 16:50:42,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 (3)] Waiting until timeout for monitored process [2023-12-02 16:50:43,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:50:43,035 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 16:50:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 16:50:43,089 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-12-02 16:50:43,089 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 16:50:43,091 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-12-02 16:50:43,093 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-12-02 16:50:43,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 (3)] Ended with exit code 0 [2023-12-02 16:50:43,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 16:50:43,303 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-12-02 16:50:43,306 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 16:50:43,320 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet100 [2023-12-02 16:50:43,323 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-12-02 16:50:43,325 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret97 could not be translated [2023-12-02 16:50:43,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 04:50:43 BoogieIcfgContainer [2023-12-02 16:50:43,333 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 16:50:43,334 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 16:50:43,334 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 16:50:43,335 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 16:50:43,335 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 04:50:42" (3/4) ... [2023-12-02 16:50:43,337 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 16:50:43,338 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 16:50:43,339 INFO L158 Benchmark]: Toolchain (without parser) took 2770.48ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 43.8MB in the beginning and 52.7MB in the end (delta: -8.9MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-12-02 16:50:43,339 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:50:43,340 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1292.29ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 43.6MB in the beginning and 44.7MB in the end (delta: -1.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-12-02 16:50:43,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.59ms. Allocated memory is still 100.7MB. Free memory was 44.7MB in the beginning and 72.0MB in the end (delta: -27.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2023-12-02 16:50:43,341 INFO L158 Benchmark]: Boogie Preprocessor took 35.30ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:50:43,342 INFO L158 Benchmark]: RCFGBuilder took 380.90ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 55.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-02 16:50:43,342 INFO L158 Benchmark]: TraceAbstraction took 980.10ms. Allocated memory is still 100.7MB. Free memory was 54.1MB in the beginning and 53.2MB in the end (delta: 879.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 16:50:43,343 INFO L158 Benchmark]: Witness Printer took 3.80ms. Allocated memory is still 100.7MB. Free memory was 53.2MB in the beginning and 52.7MB in the end (delta: 552.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 16:50:43,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 75.5MB. Free memory is still 52.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1292.29ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 43.6MB in the beginning and 44.7MB in the end (delta: -1.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.59ms. Allocated memory is still 100.7MB. Free memory was 44.7MB in the beginning and 72.0MB in the end (delta: -27.2MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.30ms. Allocated memory is still 100.7MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 380.90ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 55.2MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 980.10ms. Allocated memory is still 100.7MB. Free memory was 54.1MB in the beginning and 53.2MB in the end (delta: 879.0kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.80ms. Allocated memory is still 100.7MB. Free memory was 53.2MB in the beginning and 52.7MB in the end (delta: 552.4kB). 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: 1567]: 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 1576. 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); [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_max_preinc_08_bad() [L1558] int data; [L1559] 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] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1560] RET staticReturnsTrue() 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] [L1560] COND TRUE staticReturnsTrue() [L1562] data = 0x7fffffff VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; [L1564] RET staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] COND TRUE staticReturnsTrue() [L1567] ++data VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=2147483647, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1567]: 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 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 20 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 16:50:43,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e56ef07-1772-4c47-8b71-0ed79d696b26/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample