./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91 --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 9256e1eadbd3419a6aa53cc9b1e5d70ca93124a6ba3fa0bbb7e21e9bceec5c94 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:14,185 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:14,297 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-24 23:56:14,311 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:14,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:14,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:14,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:14,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:14,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:14,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:14,366 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:14,368 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:14,368 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:14,370 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:56:14,371 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:14,371 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:14,372 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:56:14,372 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:56:14,372 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:14,373 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:56:14,373 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:56:14,374 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:56:14,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:14,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:14,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:56:14,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:14,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:14,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:14,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:14,379 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:56:14,380 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:56:14,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:14,381 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:14,381 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:14,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:14,382 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:14,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:14,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:14,383 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:14,383 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:14,383 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:56:14,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:56:14,384 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:14,384 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:14,385 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:14,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:14,385 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_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9256e1eadbd3419a6aa53cc9b1e5d70ca93124a6ba3fa0bbb7e21e9bceec5c94 [2023-11-24 23:56:14,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:14,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:14,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:14,721 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:14,723 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:14,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i [2023-11-24 23:56:18,007 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:18,405 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:18,405 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i [2023-11-24 23:56:18,433 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data/84ee9cd0f/ed11a09087e04e8c8cafa0e8270bf932/FLAG0daf6ef70 [2023-11-24 23:56:18,452 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data/84ee9cd0f/ed11a09087e04e8c8cafa0e8270bf932 [2023-11-24 23:56:18,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:18,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:18,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:18,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:18,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:18,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:18" (1/1) ... [2023-11-24 23:56:18,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fec844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:18, skipping insertion in model container [2023-11-24 23:56:18,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:18" (1/1) ... [2023-11-24 23:56:18,561 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:19,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:19,640 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:19,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:19,931 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:19,931 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:19,932 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:19,932 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:19,939 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:19,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19 WrapperNode [2023-11-24 23:56:19,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:19,941 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:19,941 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:19,942 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:19,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:19,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,029 INFO L138 Inliner]: procedures = 498, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2023-11-24 23:56:20,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:20,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:20,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:20,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:20,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,060 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,062 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,064 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:20,069 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:20,069 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:20,069 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:20,070 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (1/1) ... [2023-11-24 23:56:20,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:20,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:20,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:20,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:56:20,169 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:56:20,169 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-24 23:56:20,170 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-24 23:56:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:56:20,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:56:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:20,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:20,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:56:20,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:56:20,332 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:20,335 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:20,607 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:20,889 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:20,889 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:56:20,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:20 BoogieIcfgContainer [2023-11-24 23:56:20,892 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:20,895 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:20,895 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:20,899 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:20,899 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:18" (1/3) ... [2023-11-24 23:56:20,900 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8c9e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:20, skipping insertion in model container [2023-11-24 23:56:20,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:19" (2/3) ... [2023-11-24 23:56:20,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e8c9e91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:20, skipping insertion in model container [2023-11-24 23:56:20,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:20" (3/3) ... [2023-11-24 23:56:20,903 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_12_bad.i [2023-11-24 23:56:20,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:20,926 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:56:20,987 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:20,997 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;@4d898c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:20,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 23:56:21,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 22 states have internal predecessors, (24), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:56:21,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:56:21,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:21,014 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:21,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:56:21,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash 685727011, now seen corresponding path program 1 times [2023-11-24 23:56:21,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:56:21,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432772120] [2023-11-24 23:56:21,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:21,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:56:21,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:21,593 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:56:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:21,839 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-24 23:56:21,853 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:56:21,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-24 23:56:21,857 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-24 23:56:21,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-24 23:56:21,858 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-24 23:56:21,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:56:21,869 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 23:56:21,874 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:56:21,913 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet114 [2023-11-24 23:56:21,919 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated [2023-11-24 23:56:21,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret111 could not be translated [2023-11-24 23:56:21,920 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite110 could not be translated [2023-11-24 23:56:21,921 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite110 could not be translated [2023-11-24 23:56:21,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:56:21 BoogieIcfgContainer [2023-11-24 23:56:21,939 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:56:21,941 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:56:21,941 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:56:21,942 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:56:21,942 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:20" (3/4) ... [2023-11-24 23:56:21,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:56:21,947 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:56:21,948 INFO L158 Benchmark]: Toolchain (without parser) took 3486.46ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 105.6MB in the beginning and 159.4MB in the end (delta: -53.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:21,949 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:21,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1473.61ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 83.0MB in the end (delta: 22.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2023-11-24 23:56:21,952 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.64ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 79.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:21,958 INFO L158 Benchmark]: Boogie Preprocessor took 37.58ms. Allocated memory is still 155.2MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:21,959 INFO L158 Benchmark]: RCFGBuilder took 823.20ms. Allocated memory is still 155.2MB. Free memory was 77.7MB in the beginning and 96.7MB in the end (delta: -19.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:21,961 INFO L158 Benchmark]: TraceAbstraction took 1044.28ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 95.6MB in the beginning and 159.4MB in the end (delta: -63.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2023-11-24 23:56:21,961 INFO L158 Benchmark]: Witness Printer took 5.91ms. Allocated memory is still 201.3MB. Free memory is still 159.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:21,971 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 119.5MB. Free memory is still 65.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1473.61ms. Allocated memory is still 155.2MB. Free memory was 105.1MB in the beginning and 83.0MB in the end (delta: 22.1MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.64ms. Allocated memory is still 155.2MB. Free memory was 83.0MB in the beginning and 79.8MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.58ms. Allocated memory is still 155.2MB. Free memory was 79.8MB in the beginning and 77.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 823.20ms. Allocated memory is still 155.2MB. Free memory was 77.7MB in the beginning and 96.7MB in the end (delta: -19.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 1044.28ms. Allocated memory was 155.2MB in the beginning and 201.3MB in the end (delta: 46.1MB). Free memory was 95.6MB in the beginning and 159.4MB in the end (delta: -63.8MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Witness Printer took 5.91ms. Allocated memory is still 201.3MB. Free memory is still 159.4MB. 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~nondet114 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret111 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite110 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite110 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1583, overapproximation of bitwiseOr at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1583] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={3:0}] [L1414] COND TRUE line != ((void *)0) [L1583] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=4294967298, argc=4294967298, argv={4294967300:4294967299}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] CALL CWE191_Integer_Underflow__int_rand_sub_12_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) [L1554] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:56:22,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91 --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 9256e1eadbd3419a6aa53cc9b1e5d70ca93124a6ba3fa0bbb7e21e9bceec5c94 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:56:25,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:56:25,249 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2023-11-24 23:56:25,262 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:56:25,263 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:56:25,323 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:56:25,324 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:56:25,325 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:56:25,326 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:56:25,332 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:56:25,332 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:56:25,333 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:56:25,333 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:56:25,335 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:56:25,336 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:56:25,336 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:56:25,338 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:56:25,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:56:25,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:56:25,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:56:25,340 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:56:25,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:56:25,342 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:56:25,342 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:56:25,343 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:56:25,343 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:56:25,343 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:56:25,344 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:56:25,344 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:56:25,345 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:56:25,346 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 23:56:25,347 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:56:25,347 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:56:25,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:25,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:56:25,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:56:25,349 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:56:25,349 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:56:25,349 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:56:25,350 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:56:25,351 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:56:25,351 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:56:25,351 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:56:25,352 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_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9256e1eadbd3419a6aa53cc9b1e5d70ca93124a6ba3fa0bbb7e21e9bceec5c94 [2023-11-24 23:56:25,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:56:25,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:56:25,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:56:25,926 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:56:25,927 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:56:25,929 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i [2023-11-24 23:56:29,465 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:56:30,012 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:56:30,015 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_12_bad.i [2023-11-24 23:56:30,060 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data/63e24cfb7/59107ef61b0747409afb6302875f6999/FLAGb69429abc [2023-11-24 23:56:30,083 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/data/63e24cfb7/59107ef61b0747409afb6302875f6999 [2023-11-24 23:56:30,090 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:56:30,091 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:56:30,095 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:30,096 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:56:30,104 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:56:30,105 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:30" (1/1) ... [2023-11-24 23:56:30,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f19659b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:30, skipping insertion in model container [2023-11-24 23:56:30,107 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:56:30" (1/1) ... [2023-11-24 23:56:30,199 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:56:31,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:31,748 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:56:31,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:56:32,127 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:32,128 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:32,129 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:32,129 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:56:32,138 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:56:32,139 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32 WrapperNode [2023-11-24 23:56:32,139 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:56:32,140 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:32,140 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:56:32,141 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:56:32,149 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,195 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,232 INFO L138 Inliner]: procedures = 503, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2023-11-24 23:56:32,233 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:56:32,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:56:32,234 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:56:32,234 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:56:32,244 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,245 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,269 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,274 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:56:32,275 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:56:32,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:56:32,276 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:56:32,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (1/1) ... [2023-11-24 23:56:32,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:56:32,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:56:32,330 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:56:32,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:56:32,378 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-24 23:56:32,378 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-24 23:56:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrueOrFalse [2023-11-24 23:56:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrueOrFalse [2023-11-24 23:56:32,379 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-24 23:56:32,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-24 23:56:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:56:32,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:56:32,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:56:32,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:56:32,384 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-24 23:56:32,574 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:56:32,577 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:56:32,870 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:56:32,906 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:56:32,907 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:56:32,907 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:32 BoogieIcfgContainer [2023-11-24 23:56:32,907 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:56:32,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:56:32,910 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:56:32,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:56:32,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:56:30" (1/3) ... [2023-11-24 23:56:32,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91eeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:32, skipping insertion in model container [2023-11-24 23:56:32,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:56:32" (2/3) ... [2023-11-24 23:56:32,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b91eeb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:56:32, skipping insertion in model container [2023-11-24 23:56:32,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:32" (3/3) ... [2023-11-24 23:56:32,918 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_12_bad.i [2023-11-24 23:56:32,940 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:56:32,940 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-24 23:56:33,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:56:33,016 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;@6d51c1c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:56:33,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 23:56:33,023 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 25 states have internal predecessors, (30), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-24 23:56:33,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-24 23:56:33,035 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:33,036 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:33,037 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:56:33,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:33,046 INFO L85 PathProgramCache]: Analyzing trace with hash 657284848, now seen corresponding path program 1 times [2023-11-24 23:56:33,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:56:33,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [459202285] [2023-11-24 23:56:33,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:33,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:33,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:56:33,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:56:33,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-24 23:56:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:56:33,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 23:56:33,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:56:33,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:56:33,323 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 23:56:33,324 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-24 23:56:33,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [459202285] [2023-11-24 23:56:33,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [459202285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:56:33,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:56:33,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 23:56:33,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445195271] [2023-11-24 23:56:33,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:56:33,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:56:33,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-24 23:56:33,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:56:33,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:33,370 INFO L87 Difference]: Start difference. First operand has 36 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 25 states have internal predecessors, (30), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 23:56:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:56:33,460 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2023-11-24 23:56:33,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:56:33,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2023-11-24 23:56:33,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:56:33,471 INFO L225 Difference]: With dead ends: 60 [2023-11-24 23:56:33,471 INFO L226 Difference]: Without dead ends: 20 [2023-11-24 23:56:33,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:56:33,479 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-24 23:56:33,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 59 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-24 23:56:33,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-11-24 23:56:33,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-11-24 23:56:33,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 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) [2023-11-24 23:56:33,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2023-11-24 23:56:33,520 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16 [2023-11-24 23:56:33,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:56:33,522 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2023-11-24 23:56:33,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-24 23:56:33,523 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2023-11-24 23:56:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 23:56:33,525 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:56:33,525 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-24 23:56:33,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:56:33,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:33,737 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-24 23:56:33,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:56:33,738 INFO L85 PathProgramCache]: Analyzing trace with hash -41400971, now seen corresponding path program 1 times [2023-11-24 23:56:33,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-24 23:56:33,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482977745] [2023-11-24 23:56:33,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:56:33,739 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:33,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat [2023-11-24 23:56:33,741 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-24 23:56:33,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/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 [2023-11-24 23:56:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:33,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:56:33,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:56:33,984 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-24 23:56:33,984 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 23:56:33,986 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-24 23:56:33,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-24 23:56:33,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-24 23:56:33,990 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-24 23:56:34,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/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)] Forceful destruction successful, exit code 0 [2023-11-24 23:56:34,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-24 23:56:34,199 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-24 23:56:34,203 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-24 23:56:34,226 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~nondet108 [2023-11-24 23:56:34,230 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated [2023-11-24 23:56:34,231 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet99 could not be translated [2023-11-24 23:56:34,231 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated [2023-11-24 23:56:34,231 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated [2023-11-24 23:56:34,232 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated [2023-11-24 23:56:34,232 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated [2023-11-24 23:56:34,233 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret105 could not be translated [2023-11-24 23:56:34,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 11:56:34 BoogieIcfgContainer [2023-11-24 23:56:34,243 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-24 23:56:34,244 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:56:34,244 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:56:34,245 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:56:34,245 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:56:32" (3/4) ... [2023-11-24 23:56:34,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:56:34,249 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:56:34,250 INFO L158 Benchmark]: Toolchain (without parser) took 4158.18ms. Allocated memory was 88.1MB in the beginning and 127.9MB in the end (delta: 39.8MB). Free memory was 61.1MB in the beginning and 89.2MB in the end (delta: -28.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-11-24 23:56:34,251 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 88.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:34,251 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2043.92ms. Allocated memory was 88.1MB in the beginning and 127.9MB in the end (delta: 39.8MB). Free memory was 61.1MB in the beginning and 94.8MB in the end (delta: -33.6MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2023-11-24 23:56:34,252 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.70ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 91.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:34,253 INFO L158 Benchmark]: Boogie Preprocessor took 40.88ms. Allocated memory is still 127.9MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:56:34,254 INFO L158 Benchmark]: RCFGBuilder took 632.45ms. Allocated memory is still 127.9MB. Free memory was 89.8MB in the beginning and 72.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:56:34,254 INFO L158 Benchmark]: TraceAbstraction took 1333.24ms. Allocated memory is still 127.9MB. Free memory was 71.8MB in the beginning and 89.2MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:34,255 INFO L158 Benchmark]: Witness Printer took 4.92ms. Allocated memory is still 127.9MB. Free memory is still 89.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:56:34,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 88.1MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2043.92ms. Allocated memory was 88.1MB in the beginning and 127.9MB in the end (delta: 39.8MB). Free memory was 61.1MB in the beginning and 94.8MB in the end (delta: -33.6MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.70ms. Allocated memory is still 127.9MB. Free memory was 94.8MB in the beginning and 91.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.88ms. Allocated memory is still 127.9MB. Free memory was 91.9MB in the beginning and 89.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.45ms. Allocated memory is still 127.9MB. Free memory was 89.8MB in the beginning and 72.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1333.24ms. Allocated memory is still 127.9MB. Free memory was 71.8MB in the beginning and 89.2MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.92ms. Allocated memory is still 127.9MB. Free memory is still 89.2MB. 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~nondet108 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret96 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet99 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet98 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet97 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ite104 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet100 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret105 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of large string literal at line 1583. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1583] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={3:0}] [L1414] COND TRUE line != ((void *)0) [L1583] RET printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(argc)=12, argc=12, argv={13:12}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1584] CALL CWE191_Integer_Underflow__int_rand_sub_12_bad() [L1550] int data; [L1551] data = 0 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1552] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] COND TRUE globalReturnsTrueOrFalse() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=0, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1520] return (rand() % 2); [L1560] RET globalReturnsTrueOrFalse() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] COND TRUE globalReturnsTrueOrFalse() [L1563] data - 1 VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, data=-2147483648, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 1571]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 33 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 57 ConjunctsInSsa, 2 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 [2023-11-24 23:56:34,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_46937fe5-d372-44b4-b096-68df8dac7dae/bin/utaipan-verify-SwPr7d2a91/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