./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/terminator_02-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/terminator_02-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ --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 32bit --witnessprinter.graph.data.programhash 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:39:16,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:39:16,156 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 21:39:16,162 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:39:16,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:39:16,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:39:16,208 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:39:16,209 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:39:16,210 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 21:39:16,210 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 21:39:16,211 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:39:16,211 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:39:16,212 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 21:39:16,213 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 21:39:16,213 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 21:39:16,214 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:39:16,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:39:16,215 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:39:16,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:39:16,216 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:39:16,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:39:16,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:39:16,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:39:16,218 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:39:16,219 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 21:39:16,219 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 21:39:16,220 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:39:16,220 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:39:16,221 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:39:16,222 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:39:16,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:39:16,232 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:39:16,232 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:39:16,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:39:16,233 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:39:16,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:39:16,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:39:16,235 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 21:39:16,235 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:39:16,235 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:39:16,236 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 21:39:16,236 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:39:16,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 21:39:16,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:39:16,237 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_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 314932412eeed441a28cefb8ae3e569787d9db1ef6d3b76281c1ff69eee43f8b [2023-11-23 21:39:16,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:39:16,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:39:16,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:39:16,561 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:39:16,563 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:39:16,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/loops/terminator_02-1.c [2023-11-23 21:39:19,631 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:39:19,828 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:39:19,829 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/sv-benchmarks/c/loops/terminator_02-1.c [2023-11-23 21:39:19,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/data/a2bf883af/7fccb9bbe208401c929d126395558880/FLAGb6a78c387 [2023-11-23 21:39:19,866 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/data/a2bf883af/7fccb9bbe208401c929d126395558880 [2023-11-23 21:39:19,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:39:19,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:39:19,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:39:19,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:39:19,879 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:39:19,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:39:19" (1/1) ... [2023-11-23 21:39:19,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff8f88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:19, skipping insertion in model container [2023-11-23 21:39:19,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:39:19" (1/1) ... [2023-11-23 21:39:19,901 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:39:20,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:39:20,077 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:39:20,092 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:39:20,108 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:39:20,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20 WrapperNode [2023-11-23 21:39:20,109 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:39:20,110 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:39:20,110 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:39:20,110 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:39:20,118 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,147 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2023-11-23 21:39:20,147 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:39:20,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:39:20,148 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:39:20,148 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:39:20,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,159 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,169 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 21:39:20,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,176 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,177 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,180 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:39:20,181 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:39:20,181 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:39:20,181 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:39:20,182 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (1/1) ... [2023-11-23 21:39:20,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:39:20,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 21:39:20,222 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:39:20,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:39:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:39:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 21:39:20,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:39:20,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:39:20,331 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:39:20,333 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:39:20,461 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:39:20,489 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:39:20,489 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:39:20,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:39:20 BoogieIcfgContainer [2023-11-23 21:39:20,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:39:20,493 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:39:20,493 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:39:20,497 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:39:20,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:39:19" (1/3) ... [2023-11-23 21:39:20,498 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e4c36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:39:20, skipping insertion in model container [2023-11-23 21:39:20,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:39:20" (2/3) ... [2023-11-23 21:39:20,499 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26e4c36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:39:20, skipping insertion in model container [2023-11-23 21:39:20,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:39:20" (3/3) ... [2023-11-23 21:39:20,501 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2023-11-23 21:39:20,524 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:39:20,524 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-23 21:39:20,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:39:20,626 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@17cc1a1f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:39:20,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-23 21:39:20,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:39:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:39:20,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:39:20,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:39:20,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-23 21:39:20,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:39:20,647 INFO L85 PathProgramCache]: Analyzing trace with hash 2513656, now seen corresponding path program 1 times [2023-11-23 21:39:20,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 21:39:20,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96792486] [2023-11-23 21:39:20,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:39:20,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:39:20,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:39:20,770 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:39:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:39:20,824 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 21:39:20,826 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:39:20,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-23 21:39:20,831 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-23 21:39:20,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-23 21:39:20,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-23 21:39:20,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-23 21:39:20,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-23 21:39:20,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:39:20,840 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:39:20,845 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:39:20,868 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post9 could not be translated [2023-11-23 21:39:20,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:39:20 BoogieIcfgContainer [2023-11-23 21:39:20,888 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:39:20,890 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:39:20,891 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:39:20,891 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:39:20,891 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:39:20" (3/4) ... [2023-11-23 21:39:20,892 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-23 21:39:20,897 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~post9 could not be translated [2023-11-23 21:39:20,957 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8a5c26a8-be8b-4a8b-817b-c57877d8457a/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 21:39:20,957 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:39:20,965 INFO L158 Benchmark]: Toolchain (without parser) took 1088.02ms. Allocated memory is still 163.6MB. Free memory was 135.4MB in the beginning and 120.5MB in the end (delta: 14.9MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2023-11-23 21:39:20,966 INFO L158 Benchmark]: CDTParser took 1.43ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 98.3MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:39:20,966 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.34ms. Allocated memory is still 163.6MB. Free memory was 135.1MB in the beginning and 126.5MB in the end (delta: 8.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-11-23 21:39:20,967 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.37ms. Allocated memory is still 163.6MB. Free memory was 126.5MB in the beginning and 125.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:39:20,967 INFO L158 Benchmark]: Boogie Preprocessor took 32.24ms. Allocated memory is still 163.6MB. Free memory was 125.2MB in the beginning and 123.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:39:20,968 INFO L158 Benchmark]: RCFGBuilder took 308.83ms. Allocated memory is still 163.6MB. Free memory was 123.2MB in the beginning and 111.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:39:20,968 INFO L158 Benchmark]: TraceAbstraction took 395.01ms. Allocated memory is still 163.6MB. Free memory was 111.3MB in the beginning and 121.9MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:39:20,970 INFO L158 Benchmark]: Witness Printer took 67.46ms. Allocated memory is still 163.6MB. Free memory was 121.9MB in the beginning and 120.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:39:20,976 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.43ms. Allocated memory is still 123.7MB. Free memory was 98.4MB in the beginning and 98.3MB in the end (delta: 73.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.34ms. Allocated memory is still 163.6MB. Free memory was 135.1MB in the beginning and 126.5MB in the end (delta: 8.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.37ms. Allocated memory is still 163.6MB. Free memory was 126.5MB in the beginning and 125.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.24ms. Allocated memory is still 163.6MB. Free memory was 125.2MB in the beginning and 123.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.83ms. Allocated memory is still 163.6MB. Free memory was 123.2MB in the beginning and 111.9MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 395.01ms. Allocated memory is still 163.6MB. Free memory was 111.3MB in the beginning and 121.9MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.46ms. Allocated memory is still 163.6MB. Free memory was 121.9MB in the beginning and 120.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~post9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND TRUE x<100 && 100