./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/eqn4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/eqn4f.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43c1de0381eac57fc6f4c99677f9636747c4cd8593c98dc51f3f286f262ef0fa --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 22:38:42,380 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 22:38:42,427 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 22:38:42,431 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 22:38:42,431 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 22:38:42,454 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 22:38:42,454 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 22:38:42,454 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 22:38:42,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 22:38:42,455 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 22:38:42,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 22:38:42,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 22:38:42,455 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 22:38:42,455 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 22:38:42,455 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 22:38:42,455 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 22:38:42,455 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 22:38:42,456 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 22:38:42,456 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 22:38:42,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 22:38:42,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 22:38:42,456 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 22:38:42,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 22:38:42,459 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 22:38:42,459 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 22:38:42,459 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 22:38:42,460 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:38:42,460 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:38:42,460 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 22:38:42,460 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux 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 ! call(reach_error())) ) 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 -> 43c1de0381eac57fc6f4c99677f9636747c4cd8593c98dc51f3f286f262ef0fa [2025-01-08 22:38:42,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 22:38:42,665 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 22:38:42,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 22:38:42,667 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 22:38:42,667 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 22:38:42,668 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/eqn4f.c [2025-01-08 22:38:43,741 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4beb83ab/d8b6c2f016b140d996a4e0aad309fa2f/FLAGdc7f743e2 [2025-01-08 22:38:43,951 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 22:38:43,952 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4f.c [2025-01-08 22:38:43,971 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4beb83ab/d8b6c2f016b140d996a4e0aad309fa2f/FLAGdc7f743e2 [2025-01-08 22:38:43,997 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4beb83ab/d8b6c2f016b140d996a4e0aad309fa2f [2025-01-08 22:38:43,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 22:38:43,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 22:38:44,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 22:38:44,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 22:38:44,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 22:38:44,006 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:38:43" (1/1) ... [2025-01-08 22:38:44,007 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07f97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44, skipping insertion in model container [2025-01-08 22:38:44,007 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 10:38:43" (1/1) ... [2025-01-08 22:38:44,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 22:38:44,117 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4f.c[588,601] [2025-01-08 22:38:44,134 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:38:44,143 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 22:38:44,153 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn4f.c[588,601] [2025-01-08 22:38:44,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 22:38:44,170 INFO L204 MainTranslator]: Completed translation [2025-01-08 22:38:44,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44 WrapperNode [2025-01-08 22:38:44,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 22:38:44,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 22:38:44,173 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 22:38:44,173 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 22:38:44,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,196 INFO L138 Inliner]: procedures = 16, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2025-01-08 22:38:44,197 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 22:38:44,198 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 22:38:44,198 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 22:38:44,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 22:38:44,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,206 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,219 INFO L175 MemorySlicer]: Split 18 memory accesses to 4 slices as follows [2, 8, 4, 4]. 44 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0, 0]. The 4 writes are split as follows [0, 0, 2, 2]. [2025-01-08 22:38:44,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,223 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,226 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,230 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,232 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,233 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 22:38:44,235 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 22:38:44,235 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 22:38:44,235 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 22:38:44,236 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (1/1) ... [2025-01-08 22:38:44,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 22:38:44,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:38:44,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-08 22:38:44,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-08 22:38:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 22:38:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 22:38:44,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 22:38:44,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-08 22:38:44,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-08 22:38:44,345 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 22:38:44,347 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 22:38:44,472 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-01-08 22:38:44,472 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 22:38:44,479 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 22:38:44,479 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-08 22:38:44,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:38:44 BoogieIcfgContainer [2025-01-08 22:38:44,480 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 22:38:44,481 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 22:38:44,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 22:38:44,485 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 22:38:44,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 10:38:43" (1/3) ... [2025-01-08 22:38:44,485 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4978ce15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:38:44, skipping insertion in model container [2025-01-08 22:38:44,485 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 10:38:44" (2/3) ... [2025-01-08 22:38:44,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4978ce15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 10:38:44, skipping insertion in model container [2025-01-08 22:38:44,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:38:44" (3/3) ... [2025-01-08 22:38:44,486 INFO L128 eAbstractionObserver]: Analyzing ICFG eqn4f.c [2025-01-08 22:38:44,495 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 22:38:44,496 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG eqn4f.c that has 1 procedures, 15 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-08 22:38:44,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 22:38:44,541 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;@c139c9f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 22:38:44,541 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 22:38:44,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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) [2025-01-08 22:38:44,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-08 22:38:44,549 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:38:44,550 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:38:44,550 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:38:44,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:38:44,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1096937326, now seen corresponding path program 1 times [2025-01-08 22:38:44,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:38:44,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87248370] [2025-01-08 22:38:44,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:38:44,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:38:44,607 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-08 22:38:44,619 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-08 22:38:44,619 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:38:44,619 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 22:38:44,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 22:38:44,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 22:38:44,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87248370] [2025-01-08 22:38:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87248370] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 22:38:44,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 22:38:44,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 22:38:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518768504] [2025-01-08 22:38:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 22:38:44,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-08 22:38:44,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 22:38:44,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-08 22:38:44,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-08 22:38:44,684 INFO L87 Difference]: Start difference. First operand has 15 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 14 states have internal predecessors, (20), 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) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2025-01-08 22:38:44,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 22:38:44,691 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2025-01-08 22:38:44,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-08 22:38:44,692 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) Word has length 10 [2025-01-08 22:38:44,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 22:38:44,695 INFO L225 Difference]: With dead ends: 26 [2025-01-08 22:38:44,695 INFO L226 Difference]: Without dead ends: 12 [2025-01-08 22:38:44,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-08 22:38:44,698 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-08 22:38:44,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-08 22:38:44,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2025-01-08 22:38:44,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2025-01-08 22:38:44,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2025-01-08 22:38:44,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2025-01-08 22:38:44,715 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 10 [2025-01-08 22:38:44,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 22:38:44,715 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2025-01-08 22:38:44,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2025-01-08 22:38:44,715 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2025-01-08 22:38:44,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-08 22:38:44,715 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 22:38:44,715 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 22:38:44,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 22:38:44,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 22:38:44,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 22:38:44,716 INFO L85 PathProgramCache]: Analyzing trace with hash 678070036, now seen corresponding path program 1 times [2025-01-08 22:38:44,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 22:38:44,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847496358] [2025-01-08 22:38:44,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:38:44,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 22:38:44,731 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-08 22:38:44,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-08 22:38:44,761 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:38:44,761 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-01-08 22:38:44,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140160099] [2025-01-08 22:38:44,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 22:38:44,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:38:44,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 22:38:44,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-08 22:38:44,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-08 22:38:44,821 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-08 22:38:44,846 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-08 22:38:44,846 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:38:44,846 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-08 22:38:44,846 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-08 22:38:44,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-08 22:38:44,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-08 22:38:44,862 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 22:38:44,862 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-08 22:38:44,874 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-08 22:38:44,876 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-08 22:38:44,877 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-08 22:38:44,888 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-08 22:38:45,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-08 22:38:45,084 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-01-08 22:38:45,097 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-08 22:38:45,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.01 10:38:45 BoogieIcfgContainer [2025-01-08 22:38:45,099 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-08 22:38:45,100 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-08 22:38:45,100 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-08 22:38:45,100 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-08 22:38:45,100 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 10:38:44" (3/4) ... [2025-01-08 22:38:45,101 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-01-08 22:38:45,124 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 10. [2025-01-08 22:38:45,155 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-08 22:38:45,156 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-08 22:38:45,156 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-08 22:38:45,156 INFO L158 Benchmark]: Toolchain (without parser) took 1156.91ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 93.3MB in the end (delta: 60.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-08 22:38:45,157 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 218.1MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-08 22:38:45,157 INFO L158 Benchmark]: CACSL2BoogieTranslator took 171.43ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 142.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-08 22:38:45,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.69ms. Allocated memory is still 201.3MB. Free memory was 142.5MB in the beginning and 141.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-08 22:38:45,157 INFO L158 Benchmark]: Boogie Preprocessor took 36.33ms. Allocated memory is still 201.3MB. Free memory was 141.1MB in the beginning and 139.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-08 22:38:45,158 INFO L158 Benchmark]: RCFGBuilder took 245.22ms. Allocated memory is still 201.3MB. Free memory was 139.6MB in the beginning and 127.2MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-08 22:38:45,158 INFO L158 Benchmark]: TraceAbstraction took 618.04ms. Allocated memory is still 201.3MB. Free memory was 126.5MB in the beginning and 98.7MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-08 22:38:45,158 INFO L158 Benchmark]: Witness Printer took 56.13ms. Allocated memory is still 201.3MB. Free memory was 98.7MB in the beginning and 93.3MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-08 22:38:45,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 218.1MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 171.43ms. Allocated memory is still 201.3MB. Free memory was 153.9MB in the beginning and 142.5MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.69ms. Allocated memory is still 201.3MB. Free memory was 142.5MB in the beginning and 141.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.33ms. Allocated memory is still 201.3MB. Free memory was 141.1MB in the beginning and 139.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 245.22ms. Allocated memory is still 201.3MB. Free memory was 139.6MB in the beginning and 127.2MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 618.04ms. Allocated memory is still 201.3MB. Free memory was 126.5MB in the beginning and 98.7MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 56.13ms. Allocated memory is still 201.3MB. Free memory was 98.7MB in the beginning and 93.3MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 8 [L32] b[0] = 0 [L33] i=1 VAL [N=1, a={5:0}, b={4:0}, i=1] [L33] COND FALSE !(i