java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --abstractinterpretationv2.abstract.domain IntervalDomain -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-14 00:39:15,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 00:39:15,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 00:39:15,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 00:39:15,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 00:39:15,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 00:39:15,291 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 00:39:15,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 00:39:15,298 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 00:39:15,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 00:39:15,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 00:39:15,308 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 00:39:15,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 00:39:15,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 00:39:15,313 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 00:39:15,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 00:39:15,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 00:39:15,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 00:39:15,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 00:39:15,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 00:39:15,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 00:39:15,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 00:39:15,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 00:39:15,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 00:39:15,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 00:39:15,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 00:39:15,338 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 00:39:15,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 00:39:15,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 00:39:15,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 00:39:15,343 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 00:39:15,344 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 00:39:15,345 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 00:39:15,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 00:39:15,348 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 00:39:15,348 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 00:39:15,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 00:39:15,349 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 00:39:15,352 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 00:39:15,353 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 00:39:15,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 00:39:15,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 00:39:15,381 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 00:39:15,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 00:39:15,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 00:39:15,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 00:39:15,383 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 00:39:15,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 00:39:15,383 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 00:39:15,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 00:39:15,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 00:39:15,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 00:39:15,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 00:39:15,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 00:39:15,384 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 00:39:15,384 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 00:39:15,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 00:39:15,385 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 00:39:15,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 00:39:15,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 00:39:15,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 00:39:15,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 00:39:15,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 00:39:15,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 00:39:15,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 00:39:15,386 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 00:39:15,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 00:39:15,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 00:39:15,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 00:39:15,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 00:39:15,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain [2019-10-14 00:39:15,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 00:39:15,698 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 00:39:15,701 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 00:39:15,702 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 00:39:15,702 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 00:39:15,703 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-14 00:39:15,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6743d2b7/ff59100195d54b3ea471ab8653cc2e62/FLAG842239f9b [2019-10-14 00:39:16,148 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 00:39:16,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2019-10-14 00:39:16,154 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6743d2b7/ff59100195d54b3ea471ab8653cc2e62/FLAG842239f9b [2019-10-14 00:39:16,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6743d2b7/ff59100195d54b3ea471ab8653cc2e62 [2019-10-14 00:39:16,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 00:39:16,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 00:39:16,558 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 00:39:16,558 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 00:39:16,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 00:39:16,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d82875c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16, skipping insertion in model container [2019-10-14 00:39:16,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,575 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 00:39:16,593 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 00:39:16,758 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:39:16,762 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 00:39:16,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 00:39:16,791 INFO L192 MainTranslator]: Completed translation [2019-10-14 00:39:16,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16 WrapperNode [2019-10-14 00:39:16,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 00:39:16,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 00:39:16,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 00:39:16,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 00:39:16,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,919 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... [2019-10-14 00:39:16,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 00:39:16,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 00:39:16,924 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 00:39:16,924 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 00:39:16,925 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:39:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 00:39:16,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 00:39:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 00:39:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 00:39:16,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 00:39:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 00:39:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 00:39:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 00:39:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 00:39:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 00:39:17,268 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 00:39:17,268 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 00:39:17,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:17 BoogieIcfgContainer [2019-10-14 00:39:17,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 00:39:17,271 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-10-14 00:39:17,271 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-10-14 00:39:17,271 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-10-14 00:39:17,272 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:39:17" (1/1) ... [2019-10-14 00:39:17,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 00:39:17,448 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-14 00:39:19,616 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-14 00:39:19,644 INFO L272 AbstractInterpreter]: Visited 36 different actions 585 times. Merged at 17 different actions 237 times. Widened at 9 different actions 78 times. Performed 1086 root evaluator evaluations with a maximum evaluation depth of 12. Performed 1086 inverse root evaluator evaluations with a maximum inverse evaluation depth of 12. Found 98 fixpoints after 10 different actions. Largest state had 11 variables. [2019-10-14 00:39:19,644 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2019-10-14 00:39:19,647 INFO L168 Benchmark]: Toolchain (without parser) took 3089.33 ms. Allocated memory was 138.9 MB in the beginning and 317.2 MB in the end (delta: 178.3 MB). Free memory was 102.9 MB in the beginning and 168.5 MB in the end (delta: -65.6 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. [2019-10-14 00:39:19,648 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 00:39:19,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.74 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 93.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-14 00:39:19,651 INFO L168 Benchmark]: Boogie Preprocessor took 128.16 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.1 MB in the beginning and 181.3 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-14 00:39:19,652 INFO L168 Benchmark]: RCFGBuilder took 346.69 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 168.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2019-10-14 00:39:19,653 INFO L168 Benchmark]: Abstract Interpretation took 2373.58 ms. Allocated memory was 202.9 MB in the beginning and 317.2 MB in the end (delta: 114.3 MB). Free memory was 168.3 MB in the beginning and 168.5 MB in the end (delta: -152.7 kB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. [2019-10-14 00:39:19,658 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 234.74 ms. Allocated memory is still 138.9 MB. Free memory was 102.5 MB in the beginning and 93.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.16 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 93.1 MB in the beginning and 181.3 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 346.69 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 168.3 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 2373.58 ms. Allocated memory was 202.9 MB in the beginning and 317.2 MB in the end (delta: 114.3 MB). Free memory was 168.3 MB in the beginning and 168.5 MB in the end (delta: -152.7 kB). Peak memory consumption was 114.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 5]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L11] unsigned int x = 0; [L12] unsigned int y = 0; [L13] unsigned int z = 0; [L14] unsigned int w = 0; [L15] unsigned int v = 0; [L16] w=0 [L16] COND TRUE w<0x0fffffff [L17] x=0 [L17] COND TRUE x< 10 [L18] y=0 [L18] COND TRUE y< 10 [L19] z=0 [L19] COND TRUE z< 10 [L20] v=0 [L20] COND FALSE !(v< 10) [L21] CALL __VERIFIER_assert(v % 4) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...