./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:13:32,308 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:13:32,436 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-08 17:13:32,445 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:13:32,445 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:13:32,488 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:13:32,489 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:13:32,489 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:13:32,490 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:13:32,490 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:13:32,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:13:32,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:13:32,492 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:13:32,493 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:13:32,494 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:13:32,494 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:13:32,496 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:13:32,499 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:13:32,500 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:13:32,500 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:13:32,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:13:32,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:13:32,502 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:13:32,502 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:13:32,502 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:13:32,503 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:13:32,503 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:13:32,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:13:32,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:13:32,504 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:13:32,508 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:13:32,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:32,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:13:32,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:13:32,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:13:32,510 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:13:32,510 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:13:32,510 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:13:32,511 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:13:32,511 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:13:32,513 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:13:32,513 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 [2024-11-08 17:13:32,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:13:32,919 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:13:32,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:13:32,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:13:32,926 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:13:32,930 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i Unable to find full path for "g++" [2024-11-08 17:13:35,371 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:13:35,788 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:13:35,789 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-08 17:13:35,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data/ad241b794/c98802c0792248859b017571df404210/FLAGb518f0148 [2024-11-08 17:13:35,862 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data/ad241b794/c98802c0792248859b017571df404210 [2024-11-08 17:13:35,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:13:35,870 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:13:35,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:35,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:13:35,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:13:35,881 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:35" (1/1) ... [2024-11-08 17:13:35,882 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6398564f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:35, skipping insertion in model container [2024-11-08 17:13:35,883 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:35" (1/1) ... [2024-11-08 17:13:35,989 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:13:37,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:37,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:13:37,410 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:37,704 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:13:37,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37 WrapperNode [2024-11-08 17:13:37,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:37,707 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:37,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:13:37,708 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:13:37,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,784 INFO L138 Inliner]: procedures = 499, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-11-08 17:13:37,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:37,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:13:37,785 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:13:37,785 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:13:37,800 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,804 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,818 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 17:13:37,818 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,819 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,824 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,827 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,829 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,831 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:13:37,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:13:37,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:13:37,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:13:37,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (1/1) ... [2024-11-08 17:13:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:37,872 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:37,897 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:13:37,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:13:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 17:13:37,941 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 17:13:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:13:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:13:37,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:13:37,941 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2024-11-08 17:13:37,942 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2024-11-08 17:13:38,112 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:13:38,115 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:13:38,385 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2024-11-08 17:13:38,385 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:13:38,410 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:13:38,410 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:13:38,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:38 BoogieIcfgContainer [2024-11-08 17:13:38,411 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:13:38,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:13:38,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:13:38,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:13:38,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:13:35" (1/3) ... [2024-11-08 17:13:38,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df38f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:38, skipping insertion in model container [2024-11-08 17:13:38,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:37" (2/3) ... [2024-11-08 17:13:38,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5df38f6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:38, skipping insertion in model container [2024-11-08 17:13:38,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:38" (3/3) ... [2024-11-08 17:13:38,426 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-08 17:13:38,443 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:13:38,443 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:13:38,514 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:38,523 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@374ce75e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:38,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:13:38,528 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 43 states have internal predecessors, (59), 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) [2024-11-08 17:13:38,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:13:38,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:38,540 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:38,541 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:13:38,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:38,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1648115636, now seen corresponding path program 1 times [2024-11-08 17:13:38,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:38,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489482038] [2024-11-08 17:13:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:38,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:39,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:13:39,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:39,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:13:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:39,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 17:13:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:39,217 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 17:13:39,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:39,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489482038] [2024-11-08 17:13:39,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489482038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:13:39,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319160946] [2024-11-08 17:13:39,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:39,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:39,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:39,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:13:39,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:13:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:39,381 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:13:39,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:13:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:39,499 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:13:39,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319160946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:39,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:13:39,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-08 17:13:39,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019224023] [2024-11-08 17:13:39,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:39,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:13:39,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:39,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:13:39,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:13:39,558 INFO L87 Difference]: Start difference. First operand has 50 states, 41 states have (on average 1.4390243902439024) internal successors, (59), 43 states have internal predecessors, (59), 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 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 17:13:39,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:39,618 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2024-11-08 17:13:39,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:13:39,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-08 17:13:39,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:39,637 INFO L225 Difference]: With dead ends: 71 [2024-11-08 17:13:39,637 INFO L226 Difference]: Without dead ends: 43 [2024-11-08 17:13:39,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 17:13:39,650 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:39,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-08 17:13:39,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-08 17:13:39,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 37 states have internal predecessors, (51), 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) [2024-11-08 17:13:39,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2024-11-08 17:13:39,715 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 21 [2024-11-08 17:13:39,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:39,718 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2024-11-08 17:13:39,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 17:13:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2024-11-08 17:13:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 17:13:39,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:39,722 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:39,751 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:13:39,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-08 17:13:39,930 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:13:39,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:39,932 INFO L85 PathProgramCache]: Analyzing trace with hash 10447351, now seen corresponding path program 1 times [2024-11-08 17:13:39,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:39,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220066540] [2024-11-08 17:13:39,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:39,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:40,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:40,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 17:13:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:40,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 17:13:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:40,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 17:13:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:40,454 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 17:13:40,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:40,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220066540] [2024-11-08 17:13:40,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220066540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:40,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:40,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 17:13:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249170160] [2024-11-08 17:13:40,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:40,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:13:40,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:13:40,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:13:40,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:13:40,462 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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) [2024-11-08 17:13:40,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:40,655 INFO L93 Difference]: Finished difference Result 51 states and 66 transitions. [2024-11-08 17:13:40,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:13:40,656 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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 27 [2024-11-08 17:13:40,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:40,658 INFO L225 Difference]: With dead ends: 51 [2024-11-08 17:13:40,660 INFO L226 Difference]: Without dead ends: 50 [2024-11-08 17:13:40,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-08 17:13:40,662 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:40,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 261 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:13:40,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-08 17:13:40,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2024-11-08 17:13:40,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 41 states have (on average 1.3658536585365855) internal successors, (56), 42 states have internal predecessors, (56), 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) [2024-11-08 17:13:40,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 64 transitions. [2024-11-08 17:13:40,678 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 64 transitions. Word has length 27 [2024-11-08 17:13:40,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:40,679 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 64 transitions. [2024-11-08 17:13:40,679 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 7 states have internal predecessors, (19), 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) [2024-11-08 17:13:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2024-11-08 17:13:40,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-08 17:13:40,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:40,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:40,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:13:40,683 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:13:40,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:40,685 INFO L85 PathProgramCache]: Analyzing trace with hash -344802659, now seen corresponding path program 1 times [2024-11-08 17:13:40,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:13:40,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563172133] [2024-11-08 17:13:40,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:40,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:40,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:40,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:13:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:40,792 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:13:40,793 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:13:40,794 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 17:13:40,798 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 17:13:40,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:13:40,802 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 17:13:40,836 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:13:40,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:13:40 BoogieIcfgContainer [2024-11-08 17:13:40,840 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:13:40,841 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:13:40,841 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:13:40,842 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:13:40,842 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:38" (3/4) ... [2024-11-08 17:13:40,846 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:13:40,848 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:13:40,849 INFO L158 Benchmark]: Toolchain (without parser) took 4978.81ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 93.6MB in the beginning and 72.0MB in the end (delta: 21.6MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2024-11-08 17:13:40,849 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:13:40,850 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1834.68ms. Allocated memory is still 132.1MB. Free memory was 93.6MB in the beginning and 84.7MB in the end (delta: 8.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-11-08 17:13:40,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.41ms. Allocated memory is still 132.1MB. Free memory was 84.7MB in the beginning and 81.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:40,852 INFO L158 Benchmark]: Boogie Preprocessor took 49.66ms. Allocated memory is still 132.1MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:40,852 INFO L158 Benchmark]: RCFGBuilder took 575.18ms. Allocated memory is still 132.1MB. Free memory was 79.1MB in the beginning and 62.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-08 17:13:40,853 INFO L158 Benchmark]: TraceAbstraction took 2426.34ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 61.7MB in the beginning and 72.0MB in the end (delta: -10.4MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2024-11-08 17:13:40,854 INFO L158 Benchmark]: Witness Printer took 6.66ms. Allocated memory is still 176.2MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:13:40,857 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 109.1MB. Free memory is still 82.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1834.68ms. Allocated memory is still 132.1MB. Free memory was 93.6MB in the beginning and 84.7MB in the end (delta: 8.9MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.41ms. Allocated memory is still 132.1MB. Free memory was 84.7MB in the beginning and 81.8MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.66ms. Allocated memory is still 132.1MB. Free memory was 81.8MB in the beginning and 79.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 575.18ms. Allocated memory is still 132.1MB. Free memory was 79.1MB in the beginning and 62.3MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2426.34ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 61.7MB in the beginning and 72.0MB in the end (delta: -10.4MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * Witness Printer took 6.66ms. Allocated memory is still 176.2MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET 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] [L1577] CALL CWE191_Integer_Underflow__int_rand_postdec_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; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=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] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) 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] [L1562] EXPR ((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand() 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] [L1562] 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] [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 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; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] RET staticReturnsTrue() 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] [L1564] COND TRUE staticReturnsTrue() [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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, 50 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 448 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 333 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 70 IncrementalHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 115 mSDtfsCounter, 70 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 110 SizeOfPredicates, 0 NumberOfNonLiveVariables, 86 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 7/9 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 [2024-11-08 17:13:40,900 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:13:43,912 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:13:44,038 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2024-11-08 17:13:44,048 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:13:44,049 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:13:44,050 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2024-11-08 17:13:44,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:13:44,104 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:13:44,104 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:13:44,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:13:44,105 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:13:44,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:13:44,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:13:44,107 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:13:44,109 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:13:44,110 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:13:44,113 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:13:44,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:13:44,114 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:13:44,115 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:13:44,115 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:13:44,116 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:13:44,118 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:13:44,118 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:13:44,119 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:13:44,119 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 17:13:44,119 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:13:44,120 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 17:13:44,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:13:44,120 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:13:44,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:13:44,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:13:44,125 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:13:44,126 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:13:44,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:44,127 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:13:44,128 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:13:44,128 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:13:44,129 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:13:44,129 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:13:44,146 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:13:44,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:13:44,148 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:13:44,148 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:13:44,149 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e4fb4b63bcdd58b6328d3d8ac7e686ad7215cae7de56dced0453676ba573c19 [2024-11-08 17:13:44,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:13:44,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:13:44,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:13:44,671 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:13:44,672 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:13:44,674 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i Unable to find full path for "g++" [2024-11-08 17:13:47,324 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:13:47,871 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:13:47,874 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-08 17:13:47,911 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data/e8f561523/dd7683f4915b4391809f1d68d1af0b67/FLAG12cdabfc2 [2024-11-08 17:13:47,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/data/e8f561523/dd7683f4915b4391809f1d68d1af0b67 [2024-11-08 17:13:47,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:13:47,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:13:47,947 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:47,947 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:13:47,955 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:13:47,958 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:47" (1/1) ... [2024-11-08 17:13:47,960 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@765ac575 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:47, skipping insertion in model container [2024-11-08 17:13:47,960 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:13:47" (1/1) ... [2024-11-08 17:13:48,051 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:13:49,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:49,392 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:13:49,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:13:49,760 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:13:49,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49 WrapperNode [2024-11-08 17:13:49,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:13:49,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:49,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:13:49,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:13:49,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,837 INFO L138 Inliner]: procedures = 504, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2024-11-08 17:13:49,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:13:49,838 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:13:49,838 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:13:49,839 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:13:49,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,857 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,870 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-08 17:13:49,871 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,871 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,881 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,888 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,893 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:13:49,894 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:13:49,894 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:13:49,894 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:13:49,895 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (1/1) ... [2024-11-08 17:13:49,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:13:49,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:49,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:13:49,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:13:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-08 17:13:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-08 17:13:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:13:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:13:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:13:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2024-11-08 17:13:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2024-11-08 17:13:50,228 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:13:50,231 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:13:50,426 INFO L? ?]: Removed 27 outVars from TransFormulas that were not future-live. [2024-11-08 17:13:50,426 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:13:50,449 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:13:50,449 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 17:13:50,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:50 BoogieIcfgContainer [2024-11-08 17:13:50,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:13:50,451 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:13:50,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:13:50,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:13:50,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:13:47" (1/3) ... [2024-11-08 17:13:50,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcf0415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:50, skipping insertion in model container [2024-11-08 17:13:50,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:13:49" (2/3) ... [2024-11-08 17:13:50,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dcf0415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:13:50, skipping insertion in model container [2024-11-08 17:13:50,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:50" (3/3) ... [2024-11-08 17:13:50,460 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_08_bad.i [2024-11-08 17:13:50,479 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:13:50,480 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 17:13:50,573 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:13:50,579 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4580e636, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:13:50,579 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 17:13:50,584 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 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) [2024-11-08 17:13:50,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:13:50,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:50,594 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:50,595 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:13:50,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:50,602 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2024-11-08 17:13:50,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:13:50,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [342702082] [2024-11-08 17:13:50,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:50,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:50,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:50,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:13:50,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:13:50,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:50,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:13:50,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:13:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:13:50,935 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:13:50,935 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:13:50,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342702082] [2024-11-08 17:13:50,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342702082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:13:50,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:13:50,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:13:50,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478701847] [2024-11-08 17:13:50,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:13:50,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:13:50,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:13:50,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:13:50,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:50,990 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 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 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 17:13:51,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:13:51,039 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-08 17:13:51,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:13:51,045 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2024-11-08 17:13:51,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:13:51,054 INFO L225 Difference]: With dead ends: 47 [2024-11-08 17:13:51,055 INFO L226 Difference]: Without dead ends: 19 [2024-11-08 17:13:51,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:13:51,064 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:13:51,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:13:51,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-08 17:13:51,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-08 17:13:51,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 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) [2024-11-08 17:13:51,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-08 17:13:51,139 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2024-11-08 17:13:51,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:13:51,141 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-08 17:13:51,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 17:13:51,142 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-08 17:13:51,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:13:51,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:13:51,146 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:13:51,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 17:13:51,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:51,347 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-08 17:13:51,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:13:51,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2024-11-08 17:13:51,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:13:51,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [969460437] [2024-11-08 17:13:51,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:51,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:51,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:51,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:13:51,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:13:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:51,481 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:13:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:13:51,553 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-08 17:13:51,553 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:13:51,556 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-08 17:13:51,559 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-08 17:13:51,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 17:13:51,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:51,767 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:13:51,812 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:13:51,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:13:51 BoogieIcfgContainer [2024-11-08 17:13:51,819 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:13:51,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:13:51,820 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:13:51,820 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:13:51,821 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:13:50" (3/4) ... [2024-11-08 17:13:51,824 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:13:51,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:13:51,830 INFO L158 Benchmark]: Toolchain (without parser) took 3886.02ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 55.7MB in the beginning and 65.6MB in the end (delta: -10.0MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2024-11-08 17:13:51,830 INFO L158 Benchmark]: CDTParser took 1.71ms. Allocated memory is still 83.9MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:13:51,831 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1815.81ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 55.4MB in the beginning and 57.1MB in the end (delta: -1.7MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2024-11-08 17:13:51,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.27ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 54.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:51,835 INFO L158 Benchmark]: Boogie Preprocessor took 54.93ms. Allocated memory is still 107.0MB. Free memory was 53.8MB in the beginning and 51.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:13:51,835 INFO L158 Benchmark]: RCFGBuilder took 555.77ms. Allocated memory is still 107.0MB. Free memory was 51.3MB in the beginning and 67.2MB in the end (delta: -15.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2024-11-08 17:13:51,836 INFO L158 Benchmark]: TraceAbstraction took 1367.37ms. Allocated memory is still 107.0MB. Free memory was 66.6MB in the beginning and 66.2MB in the end (delta: 410.9kB). Peak memory consumption was 927.4kB. Max. memory is 16.1GB. [2024-11-08 17:13:51,837 INFO L158 Benchmark]: Witness Printer took 9.12ms. Allocated memory is still 107.0MB. Free memory was 66.2MB in the beginning and 65.6MB in the end (delta: 592.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:13:51,844 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.71ms. Allocated memory is still 83.9MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1815.81ms. Allocated memory was 83.9MB in the beginning and 107.0MB in the end (delta: 23.1MB). Free memory was 55.4MB in the beginning and 57.1MB in the end (delta: -1.7MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.27ms. Allocated memory is still 107.0MB. Free memory was 57.1MB in the beginning and 54.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.93ms. Allocated memory is still 107.0MB. Free memory was 53.8MB in the beginning and 51.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.77ms. Allocated memory is still 107.0MB. Free memory was 51.3MB in the beginning and 67.2MB in the end (delta: -15.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1367.37ms. Allocated memory is still 107.0MB. Free memory was 66.6MB in the beginning and 66.2MB in the end (delta: 410.9kB). Peak memory consumption was 927.4kB. Max. memory is 16.1GB. * Witness Printer took 9.12ms. Allocated memory is still 107.0MB. Free memory was 66.2MB in the beginning and 65.6MB in the end (delta: 592.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \old(line)={1:0}, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1414] COND TRUE line != ((void *)0) [L1576] RET 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] [L1577] CALL CWE191_Integer_Underflow__int_rand_postdec_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; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=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] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1562] 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] [L1562] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 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; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, \result=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1564] RET staticReturnsTrue() 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] [L1564] COND TRUE staticReturnsTrue() [L1567] data-- VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, 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, 28 locations, 2 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, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 85 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 5 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 [2024-11-08 17:13:51,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f89e2ed-ff63-41dc-b8a0-3f41292083f3/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample